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<title cf:type="text"><![CDATA[Editorial Department of Guangdong Agricultural Sciences -->Horticulture & Forestry]]></title>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Breeding of New Cherry Tomato Hybrid F1“Yuekeda 301” with High Quality and Multi-resistance]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to breed a new cherry tomato variety with high quality and multi-resistance.
【Method】The new cherry tomato hybrid combination was bred by using heterosis theory. The female parent “001F7-
1-1-1-1”is limited growth type, with high fruit setting rate, round fruit shape, green shoulder, single fruit weights about 
14.0 g, pink fruit, sweet and sour taste, high combining ability, moderate resistance to bacterial wilt and heat resistance. And 
the male parent “yellow material 005” is a good comprehensive trait material with resistance to bacterial wilt and disease 
TYLCV.【Result】The new combination “Yuekeda 301” has strong growth potential and two-pinnate compound leaf. 
The fruit type index is 0.94 and the fruit shape is round. The fruit has smooth surface, green shoulders (immature fruit), pink 
colour (mature fruit), long and straight sepals, few dehiscent fruit, with single fruit weight about 17.3 g. The annual yield of 
greenhouse is 5 000-7 000 kg per 667 m2, and the annual yield of field is 3 000-5 000 kg per 667 m2, which is 24.49%-
37.18% higher than that of the control variety Red Moon. The soluble solids content is more than 8.1% with moderate acid 
and sweetness. It has resistance loci Ty1, Ty3 of TYLCV and BW12 of bacterial wilt. The incidence of bacterial wilt in the field is 23.2%, and the incidence index of viral disease is 24.5.【Conclusion】The new hybrid combination cherry tomato 
“Yuekeda 301” cultivar with high quality, high yield and multi-resistance, is suitable for cultivation in protected and open 
fields in southern China, such as Guangdong.]]></description>
<pubDate>2019/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[聂 俊，李艳红，谭德龙，张长远，谢玉明，史亮亮，郑锦荣]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>聂 俊，李艳红，谭德龙，张长远，谢玉明，史亮亮，郑锦荣</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909005&flag=1]]></guid><cfi:id>183</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Spraying Pyrrolidine Quinoline Quinone on thePhysiological Responses of Pepper under Drought Stress]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The objective was to study the effects of pyrrolidine quinoline quinone on the growth 
and physiological responses of pepper under drought stress.【Method】By taking pot culture method, the effects of 
pyrroquinolinone quinone on the agronomic characters, proline, chlorophyll, soluble sugar, malondialdehyde, oxidase, 
photosynthetic characteristics and quality of pepper under different water conditions were studied.【Result】The results 
showed that low concentration (0-500 nmol/L) pyrrolidine quinoline quinine sprayed under drought stress had a certain effect 
on the drought resistance of pepper. It effectively inhibited the decrease of chlorophyll and soluble protein content, increased 
the content of proline and soluble sugar content. Antioxidant enzyme activity increased significantly, the degree of membrane 
lipid peroxidation decreased, and the photosynthetic characteristics enhanced. The net photosynthetic rate of 200 nmol/ L treatment increased by 130.89% compared with that of 0 nmol/L, and the fruit quality was partially improved. Spraying high 
concentration (1 000 nmol/L) pyrrolidone quinoline quinine inhibited pepper growth, and 200 nmol/L treatment was the most 
conducive to the drought resistance and growth of pepper.【Conclusion】In the actual production of pepper, it is recommended 
to spray the pyrrolidone quinoline quinone solution with a concentration of 200 nmol/L in the arid or semi-arid pepper planting 
areas.]]></description>
<pubDate>2019/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[李　鑫 1，2，李雪峰 1
，马艳青 1
，张清壮 1
，唐艺欣 1
，肖　鑫 3，曾建国 4]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>李　鑫 1，2，李雪峰 1
，马艳青 1
，张清壮 1
，唐艺欣 1
，肖　鑫 3，曾建国 4</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909006&flag=1]]></guid><cfi:id>182</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Application of Garden Waste Composting Products in Flower Substrate Cultivation]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The effect of the substrate composed of garden waste composting products in Guangdong 
on the growth of flowers was studied, and the possibility of composting products as garden plant cultivation substrate was 
discussed.【Method】The physical and chemical properties of the substrate composed of different proportion of compost 
and the growth characteristics of two kinds of herbaceous flower were determined by using Impatiens wallerana and Petunia 
hybrida as research materials.【Result】The substrate composed of garden waste composting products has low bulk density, 
high total porosity, high contents of organic matter, nitrogen, phosphorus and potassium. Among them, the available nitrogen, 
phosphorus and potassium in the pure compost were 686.80, 453.20 and 10 120.90 mg/kg, respectively. Therefore, such 
substrate was an ideal substrate for flower cultivation. The substrate composed of compost can promote the root growth, 
increase chlorophyll content of leaves above ground, promote leaf growth, and promote tillering of flower branches, increase 
crown width and plant height, and then increase dry and fresh weight and number of flowers of I. wallerana and P. hybrida.According to the analysis of subject function method, the most suitable substrate for the growth of I. wallerana plant was 
obtained by pure compost, with the function value of 0.73. While the most suitable substrate for the growth of P. hybrida was 
compost of commercially cultivation substrate (substrate ∶ compost7 ∶ 3), with its function value of 0.97.【Conclusion】
The substrate composed of garden waste composting products can be used as substrate for the cultivation of I. wallerana and P. 
hybrida.]]></description>
<pubDate>2019/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[庾富文 1
，周俊辉 2，袁丽珍 3，何勤勤 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>庾富文 1
，周俊辉 2，袁丽珍 3，何勤勤 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909007&flag=1]]></guid><cfi:id>181</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Cultivation Substrates on the Growth of Three Bryophytes]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Bryophytes are widely used, such as maintaining soil and water, monitoring air pollution, 
or making horticultural landscape, but their growth lies in harsh conditions. In this study, a substrate capable of allowing 
bryophytes to grow well was selected from the cultivation substrates under near-natural conditions.【Method】Singlefactor experimental method was used to grow bryophytes by broken stem method, and the effects of 10 kinds of cultivation 
substrates on the growth of three kinds of mosses were studied by measuring the changes of biological and physiological 
indexes including plant height, weight gain, coverage rate and chlorophyll content of bryophytes.【Result】The physiological 
index of the Bryum argenteum planted in the red jade soil reached the maximum (plant height 1.44 cm, weight gain 3.8281 
g, coverage rate 95.86% and chlorophyll content 207.13 mg/kg), which was higher than that of the B. argenteum planted 
in diatomite (plant height 0.41 cm, weight gain 1.0800 g, coverage rate 29.89% and chlorophyll content 45.55 mg/kg).The physiological index of the Myuroclada maximowiczii planted in the red jade soil reached the maximum (plant height 3.76 
cm, weight gain 4.7746 g, coverage rate 92.50% and chlorophyll content 89.21 mg/kg), which was higher than that of the M.
maximowiczii planted in the green zeolite (plant height 0.98 cm, weight gain 1.1344 g, coverage rate 40.26% and chlorophyll 
content 36.70 mg/kg). The physiological index of the Plagiomnium acutum (Lindb.) T. Kop. planted in the red jade soil reached 
the maximum (plant height 5.09 cm, weight gain 3.9970 g, coverage rate 90.71% and chlorophyll content 126.39 mg/kg), which 
was higher than that of the P. acutum (Lindb.) T. Kop. planted in diatomite (plant height 1.75 cm, weight gain 1.1818 g, coverage 
rate 41.62% and chlorophyll content 37.81 mg/kg).【Conclusion】Red jade soil can be used as a good cultivation substrate for 
most bryophytes. The cultivatation substrate has a certain influence on the growth of bryophytes.]]></description>
<pubDate>2019/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[黄 强，罗学刚，唐 微，赵继武，梁朱明]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>黄 强，罗学刚，唐 微，赵继武，梁朱明</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201909008&flag=1]]></guid><cfi:id>180</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Selection of Dwarf Varieties of Pea withRed Flower and Purple Pod]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[：【Objective】Two cultivars of pea (Pisum sativum L.), Cv 13 (with red flowers, purple pods and high stalk)
and Cv 4 (with white flowers, green pods and dwarf), were used as parents to breed new dwarf varieties of pea with red flowers
and purple pods, suitable to be cultivated in Guangdong with ornamental and edible values. 【Method】With Cv 13 and Cv 4
as parents, the F1 generation was obtained through reciprocal crosses. After being replanted, a new dwarf variety with red flowers
and purple pods was screened out from F2 hybrids with 3 traits of red flower, purple pod and dwarf stalk as breeding objectives.
【Result】During the process of variety selection, it was found that high stalk showed dominant character compared to dwarf
stalk, which is in accordance with segregation law of Mendel’s genetic law. Pod color was related to flower color, of which red
flower and white flower corresponded to purple pod and green pod, respectively, and it was controlled by quality traits. Two new
dwarf varieties of with red flowers and purple pods were obtained through the selection of F2 hybrids and named as No. 1 and
No. 2. Based on the analysis on relevant phenotype and quality, No. 1 had a plant height of 94.00 cm with red flower and purple
pod and the relative content of anthocyanin was 0.65, while No. 2 had a plant height of 90.00 cm with red flower and purple
pod and the relative content of anthocyanin was 0.34. 【Conclusion】 Both No. 1 and No. 2 are new varieties of dwarf pea with
red flowers and purple pods, which have high ornamental and edible values. No. 1 has relatively high anthocyanin content and
higher nutritional value.]]></description>
<pubDate>2019/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[何丽烂，李树营，李学文，喻　敏，王惠珍]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>何丽烂，李树营，李学文，喻　敏，王惠珍</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908005&flag=1]]></guid><cfi:id>179</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Key Anti-freeze Genes and Pathways ofLanzhou Lily (Lilium davidii var. unicolor)by Transcriptome Sequencing]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Lily (Lilium) is one of the first medical and edible plants published by the Ministry of Health,
and is also a famous ornamental plant. As low temperature freezing damage seriously affecting the yield and distribution of
plants, the study was to explore the molecular mechanism of the response of Lanzhou lily to subzero temperature stress. 【Method】
By using Illumina HiSeq transcriptome sequencing platform, sequencing was conducted to Lanzhou lily (L. davidii var. unicolor)
exposed to two different temperature conditions, including, normal temperature treatment at 20℃ (CK) and cold treatment
at -4℃ (D), and the sequencing data were analyzed.【Result】After being treated for 24 h, a total of 24 465 differentially
expressed genes (DEGs) were identified, which included 4 143 significantly upregulated genes and 4 415 significantly
downregulated genes, accounting for 10.27% of the total number of DEGs.【Conclusion】After enrichment analysis, DEGs related to protein kinase, protein phosphatase, carbon metabolism and ABA could be selected as main research objects for
further studying the subzero cold response mechanism of Lanzhou lily. qRT-PCR analysis showed that the expression trend of
10 randomly selected DEGs coincided with the results of high-throughput sequencing. In addition, indol-3-glycerophosphate
synthase, protein phosphatase, glycokinase, calcium-binding protein, and chlorophyll a/b binding protein were also selected as
candidate genes that related to the anti-freeze responses of Lanzhou lily, Which lay a foundation for revealing the underlying
mechanism of anti-freeze molecular of Lanzhou lily.]]></description>
<pubDate>2019/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[田雪慧 1，2，郁继华 2，颉建明 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>田雪慧 1，2，郁继华 2，颉建明 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908006&flag=1]]></guid><cfi:id>178</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Vascular Plant Resources of Typical PlantCommunities in the Middle and Upper Reaches ofthe Yarlung Zangbo River]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Through the investigation of plant resources in the middle and upper reaches of the Yarlung
Zangbo River，it aims to provide a theoretical basis for the comprehensive development and protection of plant resources in
this area.【Method】 In this study，the middle and upper reaches of the Yarlung Zangbo River were selected as research
areas. The plot method was used to conduct field investigation of the plant communities in the research areas，and the
related literature was used to study the plant resources of the vascular plants.【Result】 There are 34 families，68 genera
and 96 species (including subspecies and varieties) of vascular plants in this area，accounting for 16.83%，5.48% and 1.66% of the total number of the families，genera and species of vascular plants in Tibet and 11.63%，2.02% and 0.31% of
these in China. The growth form of vascular plants in this area is dominated by herbaceous plant，the life form of plants has
comparative advantage in chamaephytes and hemicryptophytes and the ecological type has certain advantages in the distribution
of mesophytes. There are 48 kinds of medicinal plants，40 kinds of ornamental plants，25 kinds of forage plants and 23 kinds
of other economic plants (material plants，food plants，energy plants，germplasm plants and poisonous plants etc.). And 4
species of state second-class protected wild plants are distributed in this area.【Conclusion】In this area, the plant groups are
relatively scarce，but they are rich in plants resources，which should be developed and utilized scientifically. And measures
for the protection and management of rare plants should be strengthened.]]></description>
<pubDate>2019/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[葛青松，屈兴乐，罗大庆，方江平]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>葛青松，屈兴乐，罗大庆，方江平</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908007&flag=1]]></guid><cfi:id>177</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Simulated Acid Deposition on Soil ChemicalProperties of Pure Eucalyptus and Mixed Forest]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The changes of soil chemical properties of pure eucalyptus forest and mixed forest
(eucalyptus + Castanopsis hystrix) under different simulated acid rains were studied. 【Method】 The pH of the acid
rain was simulated to be 3.0, 4.0, 5.6 and 6.0 by a strict soil column leaching test.【Result】 The pH values of soil
and soil leaching solution decreased with the decrease of acid rain pH under acid rain treatment. The average pH of
pure eucalyptus forest soil decreased by 1.41, and that of mixed forest (eucalyptus + C. hystrix) decreased by 1.66.
The nutrient contents of the leaching solution increased with the decrease of acid rain pH; the contents of soil total N,
ammonium N and nitrate N in the two forests increased first and then decreased with the decrease of acid rain pH, and
soil P and available P in the pure eucalyptus forest decreased significantly with the decrease of acid rain pH while there
was no significant change in soil P and available P in the mixed forest (eucalyptus + C. hystrix). Under same pH (pH=3.0),
compared with CK, the decline rates of total N, nitrate N and ammonium N in the pure eucalyptus forest soil were 28.7%,
46.6% and 12.4%, respectively, and those of the mixed forest(eucalyptus + Castanopsis hystrix) were 18.9%, 23.5% and  11.3%, respectively. 【Conclusion】 The comparison of the two forest stands shows that the buffering capacity of mixed forest
of eucalyptus and C. hystrix to acid rain is stronger than that of pure eucalyptus forest]]></description>
<pubDate>2019/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[韩小美1
，陆湘云 2, 杨　梅 1
，刘世男1
，王永堂 1
，唐梦云 1
，翟卫玲 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>韩小美1
，陆湘云 2, 杨　梅 1
，刘世男1
，王永堂 1
，唐梦云 1
，翟卫玲 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201908008&flag=1]]></guid><cfi:id>176</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Development and Application of Molecular Markers for Radish Leaf Edge Cracking Traits]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study identifies the genetic characteristics of radish leaf cracking traits and develop a 
molecular marker which linked to lobed leaf traits.【Method】The radish variety “WUQING No.1”(as female parent) and 
“XINZOUHUAYE” (as the male parent) were used to make the hybrid F1，then self-bred and backcross of F1 were made 
to get F2 and BC1. And the genetic characteristics of lobed leaf traits were explored.【Result】The results showed that the 
leaf edge of F1 was completely lobed. The separation ratio of leaf edge lobed to non-lobed plants in BC1 and F2 were 1∶1 
and 3∶1，indicating that the phenotypic characteristic of radish leaf edge lobed matched with dominant genetic heredity 
pattern and was controlled by a single genetic locus.The BSA and AFLP were used to screen the molecular markers which 
were closely linked to the lobed leaf edge gene of radish，and the SCAR marker primer HY-18 was closely linked with the 
lobed leaf edge gene of radish，with the genetic distance of 3.32 cM.【Conclusion】The obtained markers lay a theoretical 
foundation for molecular marker assisted breeding and the cloning of lobed leaf genes.]]></description>
<pubDate>2019/8/22 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[张小康 1
，张雪丽1
，熊秋芳 1,2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>张小康 1
，张雪丽1
，熊秋芳 1,2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907003&flag=1]]></guid><cfi:id>175</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification and Breeding Process of Resistance to Downy Mildew of Lvbao No. 3 Cucumber]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The study was to improve the yield and quality of cucumber and its resistance to downy 
mildew and abiotic adversity.【Method】The resistance to cucumber downy mildew was identified by artificial inoculation 
at seedling stage and adult stage with 60 parent materials of cucumber inbred lines at home and abroad. By using the model 
of combination of laboratory identification and field selection，the cucumber varieties that meet the market demand were 
selected by taking Jinchun No.5 cucumber as the control. 【Result】 The new combination of HG2×HG5 cucumber 
with good comprehensive characters was screened. This variety has strong growth potential and good continuous fruit 
performance，with side vines and main vines bearing melons at the same time. The variety，crisp and juicy，has dark 
green skin，sharp thorns，slightly sweet taste and resistance to downy mildew，and shows strong adversity resistance in 
the field. It was registered by the Ministry of Agriculture and Rural Affairs as a non-major crop variety in 2018 with the 
registration number GPD Cucumber〔2018〕440036. 【Conclusion】This breeding method is simple and easy，which can 
not only shorten the cycle of disease resistance identification and improve the efficiency of breeding，but also reduce the 
waste of land，manpower and material resources，providing reference for grassroots breeders in the future.]]></description>
<pubDate>2019/8/22 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[龙誉铭 1
，卲建明 2，赵竑博 1
，邹优永 2，刘玉丹 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>龙誉铭 1
，卲建明 2，赵竑博 1
，邹优永 2，刘玉丹 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907004&flag=1]]></guid><cfi:id>174</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Pumpkin Stock Grafting on Growth,Yield and Wax Powder of Cucumber]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The study was to screen cucumber rootstock varieties that suitable for the soil and climatic 
condition in Sanya City. 【Method】 Cucumber cultivar Jinlv No. 18 was grafted onto 14 widely-applied and independent 
breeding pumpkin rootstocks, and the effects of grafting on the growth, fruit yield and wax powder of cucumber were studied. 
【Result】The highest and lowest survivals of the grafting were 99.14% (Huimei No.1) and 87.57% (Biju F1). The varieties with 
a survival rate of more than 95% include: Huofenghuang, Weili No. 1, Huangchenggen No. 2, Huimei No. 1, Beinongliangzhen, 
S84 and S31×S73. The pre-growth advantages of Huofenghuang, Zhuangshi, Beinongliangzhen and S31×S73 were more 
obvious than those of other treatments; Huofenghuang and Beinongliangzhen had less effect on the thorn and Huofenghuang, 
Jiatengqingmu, Dongfangzhengdaxiaozi, Beinongliangzhen did not have wax powder and increased the fruit brightness. The plot 
yield of Beinongzhenmu No. 2 and Huofenghuang increased by 21.54% and 20.54% respectively compared with that of Jinlv 
No. 18 (CK). 【Conclusion】 After being grafted with Huofenghuang, the cucumber cultivar Jinlv No. 18 obtained high survival 
rate and vigorous growth and produced fruits with shiny skin and better appearance, with the production increased by 20.54%. 
Huofenghuang is good rootstock suitable for cucumber production in Sanya.]]></description>
<pubDate>2019/8/22 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[吴乾兴，肖春雷，黄庆文，刘龙心，肖日升，孔祥义，韩晓燕]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>吴乾兴，肖春雷，黄庆文，刘龙心，肖日升，孔祥义，韩晓燕</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907005&flag=1]]></guid><cfi:id>173</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research on Selection of Cultivation Substrate forMichelia guangdongensis Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to select the cultivation substrates suitable for Michelia guangdongensis seedling, 
the effects of 18 kinds of substrates on the growth of the M. guangdongensis seedlings were compared to screen out the 
environmental friendly substrates with better seedling growth，smaller bulk density，simple preparation and lower cost. 
This study provides a scientific basis for the cultivation and application of the M. guangdongensis seedlings.【Methods】 
The physicochemical properties of different substrates and the growth of M. guangdongensis seedlings were studied. The 
effects of different growth rates were evaluated comprehensively by multiple comparisons of growth and pearson correlation 
analysis.【Results】M. guangdongensis was treated with different substrates for 8 months. The bulk density and total 
porosity of the 18 substrates were 0.85-1.44 g/cm3 and 35.93%-54.44%，respectively. The pH was 4.47-7.76，and 
the organic matter content, total N content and effective P content of the substrates were 5.65-62.9 g/kg, 0.302-
2.740 g/kg, and 12.7-138.0 mg/kg，respectively. There was significant difference between the growth of seedling height and crown width，and the height and crown width were positively correlated with the SPAD value，the leaf area 
and the bulk density，the cation exchange capacity CEC and the conductivity EC, and negatively correlated with the total soil 
porosity and pH value. M. guangdongensis is suitable for growth in substrates with large bulk density, low pH, low organic 
matter, total N and available K content.【Conclusion】 The comprehensive growth of M08 (yellow soil∶vermiculite=3∶2) and 
M07 (yellow soil∶perlite=3∶2) was 10.19% higher than that of the control, and the bulk density was 9.72% lower than that of 
the control. It is suggested that the two substrates mentioned above are the preferred substrates for M. guangdongensis.]]></description>
<pubDate>2019/8/22 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[朱报著，廖焕琴，杨晓慧，杨会肖，潘　文，王裕霞，张卫华，徐　放]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>朱报著，廖焕琴，杨晓慧，杨会肖，潘　文，王裕霞，张卫华，徐　放</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907006&flag=1]]></guid><cfi:id>172</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comparison and Evaluation of Natural-Synthetic HybridSports Turf System with Three Types of Cold Season Turfgrass]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Paved natural-synthetic hybrid turf is a kind of newly developed hybrid turf in recent 
years. The synthetic grass of this hybrid turf is woven, and the natural grass is mostly planted by seeding. By comparing and 
evaluating the planting effect of perennial ryegrass, Kentucky bluegrass and tall fescue in paved natural-synthetic hybrid 
turf, the study was aimed to provide technical reference for the establishment of paved hybrid turf.【Method】 The perennial 
ryegrass, kentucky bluegrass and tall fescue were planted on paved synthetic turf with seeding rates of 40 g/m2, 20 g/m2 and 
40 g/m2 to establish hybrid turf. And the comprehensive evaluation of characteristics and quality of the three kinds of hybrid 
turfs were conducted.【Result】 The results showed that the three cold season turfgrass are all suitable for the establishment 
of hybrid turfs. Based on comprehensive evaluation results, the fitness was ranked as perennial ryegrass ＞ tall fescue ＞ 
kentucky bluegrass, indicating that perennial ryegrass is the best one as natural turfgrass to be used for the establishment of 
hybrid turf with 14 d of turf establishment time and 2.77 shoots/cm2 of natural grass density, 4.72 shoots/cm2 of total density, 
100% of both natural grass coverage and total coverage, 6.89 points of uniformity score, 12.57 g of plant biomass, and 8.04 
points of weighted score at the end of the experiment. 【Conclusion】 According to the results of comprehensive evaluation, 
perennial ryegrass is the first choice for the establishment of hybrid turf in north temperate zone.]]></description>
<pubDate>2019/8/22 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[麦靖雯1，2，武　鑫 1，2，徐彦花 1，2，张巨明 1，2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>麦靖雯1，2，武　鑫 1，2，徐彦花 1，2，张巨明 1，2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201907007&flag=1]]></guid><cfi:id>171</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Quantitative Descriptive Analysis of Sensory Quality of Citrus grandis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】A protocol of quantitative descriptive analysis was proposed for the sensory evaluation of 
Citrus grandis fruit quality for better assessment and guiding of cultivation of the fruit.【Method】The evaluation was 
carried out by 5 sensory evaluation panels to quantitatively evaluate the sensory quality of pomelo of 7 different production 
origins. Eight traits of sensory quality of peel aroma, pulp aroma, grain plumpness, juiciness, slaggability, sweetness, sourness 
and bitterness were chosen for quantitative evaluation. In addition, the contents of water, soluble sugar, crude fiber, vitamin 
C, total acid and ash of the frozen dried pulps were determined for the correlation analysis of these indexes with the sensory 
traits. 【Result】 Results indicated that sourness had substantial deviation and juiciness was significantly affected by 
sweetness, hence both were not suitable for sensory evaluation of pomelo; other 6 traits reflected the sensory quality of pomelo 
well. Soluble sugar had highly significant positive correlation with sweetness (R=0.182), juiciness (R=0.182) and total score 
(R=0.202). Total acid had highly significant positive correlation with slaggability (R=0.183), and had highly significant negative correlation with sweetness (R=-0.174) and grain plumpness (R=-0.168). Vitamin C content had highly significant positive 
correlation with pulp aroma (R=0.198) and slaggability (R=0.195). Ash content had highly significant positive correlation with 
sweetness (R=0.237), pulp aroma (R=0.196) and total sensory score (R=0.193), and it also had significant positive correlation 
with peel aroma (R=0.156) and juiciness (R=0.143). No significant difference occurred between different panels in the sensory 
evaluation results of pomelo samples of the same origins, indicating the good repeatability of the proposed method. Correlation 
analysis revealed that most of the sensory traits (such as sweetness, pulp aroma and etc.) demonstrated highly significant 
correlation with the nutritive indexes of soluble sugar, vitamin C and ash etc., indicating the good objectiveness of the proposed 
method. 【Conclusion】 By using pomelo with sensory quality of middle level as reference, and by using the 6 traits of peel 
aroma, pulp aroma, sweetness, juiciness, slaggability and bitterness, the results of sensory evaluation of. grandis by quantitative 
descriptive analysis had good consistency with physicochemical indexes.]]></description>
<pubDate>2019/8/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[曾宪录，林文健，吴广霞，陈志彬，李必爱，黎渊明，林秀琼]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>曾宪录，林文健，吴广霞，陈志彬，李必爱，黎渊明，林秀琼</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906004&flag=1]]></guid><cfi:id>170</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Proliferation and Browning of Peony Callus]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The study was to improve the multiplication times and quality of peony callus to reduce 
the browning in the process of proliferation and provide a way for the proliferation of peony callus. 【Methods】 Different 
additive combinations and concentrations, different pre-culture time and other methods were explored with peony cotyledon 
and hypocotyl callus as materials. 【Results】 The best medium combinations for the multiplication of peony hypocotyl 
callus and cotyledon callus are PVP 1.0 mg/L+IAA 0.2 mg/L+TDZ 1.0 mg/L+GA3 1.0 mg/L and PVP 2.0 mg/L+IAA 0.5 
mg/L+TDZ 0.5 mg/L+GA3 1.0 mg/L, and the proliferation times are 5.75 and 5.50, respectively. The use of explants that 
have been pre-cultured for 30d can effectively increase the proliferation times and reduce browning. GA3 1.0 mg/L is 
beneficial to inhibit browning during callus proliferation and promoted callus proliferation. The callus in the form of light 
yellowish green floccule on the surface with spongy texture is not prone to brown during subculture multiplication, with the 
volume proliferation changing significantly in the middle and late stages. 【Conclusion】 The addition of 1.0 mg/L of GA3
and the use of the callus that has been pre-cultured for 30d in the process of peony callus proliferation can achieve higher proliferation times and effectively inhibit browning. Light yellowish green and spongy callus is a sound condition of callus 
proliferation.]]></description>
<pubDate>2019/8/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[程雨飞 1
，朱向涛 1
，季　雯1
，洪尔蔓1
，林　芯 1
，范　贞 2，张俊丽 3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>程雨飞 1
，朱向涛 1
，季　雯1
，洪尔蔓1
，林　芯 1
，范　贞 2，张俊丽 3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906005&flag=1]]></guid><cfi:id>169</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Supplementary Lighting in Winter on Cutting and Growth of Rosa chinensis Minima in Greenhouse in South China]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The aim of this study was to investigate the influence of light supplementation in winter 
on cuttage propagation and growth of miniature rose in greenhouse in South China and to provide theoretical basis for the 
commercial cultivation of miniature rose. 【Method】 The miniature rose cultivar ‘fenjiaren’ were selected as tested 
material. A complete randomized experiment was designed with two treatments, namely, supplementary light (PPFD 
50μmol/(m2·s) ) and control ( natural light). During the growth period, mother plant with supplementary light were exposed 
to 50μmol/(m2·s) LED red and blue light for 9 h a day at 4：00-9：00 and 16：00-20：00, to observe its influence on the cutting quality and growth of miniature rose.【Result】 Supplementary lighting did not significantly affect the longest 
root length and the average root length, which were 8.97 cm and 7.92 cm respectively, and its root number was 18.5. While 
the longest root length and the average length of control treatment were 8.32 cm and 7.64 cm respectively, and its root number 
was 19.3. For the three indicators mentioned above, there was no significant difference between two treatment. The root fresh 
weight, root dry weight, leaf fresh weight, leaf dry weight, above-ground fresh weight and above-ground dry weight of miniature 
rose cutting seedlings increased by 26.55%%, 85.71%, 40.68%, 50%, 38.37% and 42.86%, respectively. The plant height, 
stem diameter and leaf area of cutting seedlings treated with supplementary lighting were 14.37 cm, 2.25 mm and 16.74 cm2
respectively and the number of node was 8.07. While the plant height, stem diameter and leaf area of the control group were 
11.91 cm, 1.97 mm and 13.49 cm2, respectively, and the number of node was 6.33. The above four indicators of supplementary 
lighting treatment were extremely significantly different from those of the control. The single flowering period of miniature rose 
were both about 28 days, and the flowering rate and yield of potted flowers could be increased significantly by supplementary 
lighting, which could reduce the incidence of blind bloom and could advance the flowering period about 10 days. 【Conclusion】 
Results in this study indicate that supplementary lighting to greenhouse miniature roses in winter in South China could obtain 
better cutting effect, higher flowering rate and higher yield, and the flowering period could also be advanced.]]></description>
<pubDate>2019/8/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[王　燕 1
，王亚平 1
，赖永超 1
，刘海涛 2，王燕君 1
，张乐萍 1
，张广燕 1
，王鸿昌1
，黄子锋 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>王　燕 1
，王亚平 1
，赖永超 1
，刘海涛 2，王燕君 1
，张乐萍 1
，张广燕 1
，王鸿昌1
，黄子锋 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906006&flag=1]]></guid><cfi:id>168</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Isolation and Identification of Endophytic Fungi from Aleurites montana and Determination of Its Phosphate Solubilizing Capacity]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The endophytic fungi from the Aleurites montana was isolated and identified, and the 
endophytic fungi with high phosphate-dissolving activity were initially screened.【Method】 Endophytic fungi were 
isolated and purified from roots, stems and leaves of Aleurites montana collected from the Waidun breeding ground, Huqiao 
work area and the Shufang forest farm in Jianyang District of Nanping City, Fujian Province. Then the dominant strains 
were screened according to the frequency of occurrence of colonies in roots, stems and leaves and the growth rate of their diameters, and the qualitative determination of the ability of solubilizing the dominant bacteria was further carried out. 【Result】
A total of 155 strains were isolated, among which, 60 strains of endophytic fungi were isolated from stems (38.71%), 50 strains 
from leaves (32.26%), and 45 strains from roots (29.03%). The number of endophytic fungi collected from the Huqiao sample 
area was the largest, while that from the Waidun sample area was the least. 25 dominant strains were identified as Mucor sp., 
Penicillium sp., Pestalotiopsis sp., Bionectria sp., Trichoderma sp., Thermomyces sp., Alternaria sp., Coniothyrium sp. and 
Fusarium sp. by morphological characteristics and 18 SrDNA molecules identification. Experiments on the effect of phosphorus 
solubilization of dominant strains showed that the strains with strong phosphorus solubilizing activity belonged to Penicillium
sp. and Thermomyces sp. 【Conclusion】 The number of endophytic fungi in A. montana varied in different locations and among 
different organs. The strains with strong phosphorus solubilizing activity belonged to Penicillium sp. and Thermomyces sp..]]></description>
<pubDate>2019/8/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[朱　静 1，2，洪陈洁 1，2，吴承祯 3，苏少川 4，颜欢欢 4，林　晗 1，2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>朱　静 1，2，洪陈洁 1，2，吴承祯 3，苏少川 4，颜欢欢 4，林　晗 1，2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201906007&flag=1]]></guid><cfi:id>167</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Fermentation Conditions on Extracellular Polysaccharides Produced by Mycelia of Agrocybe aegerita]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 In order to improve the production of extracellular polysaccharides of Agrocybe aegerita, 
the suitable medium and related culture conditions for liquid fermentation were optimized. 【Method】 Based on the yield of 
extracellular polysaccharides, some fermentation conditions such as carbon source, nitrogen source and concentration, initial 
pH, shaking speed and culture time were explored by single factor test. The optimized conditions of submerged fermentation 
increased the yield of extracellular polysaccharide produced by the mycelium of A. aegerita, and the yield of extracellular 
polysaccharide was measured by the phenol-sulfuric acid method. 【Result】 The optimum conditions for the production of 
extracellular polysaccharides by liquid fermentation of A. aegerita were as follows: soluble starch was used as carbon source and 
the concentration was controlled at 20-40 g/L; L-glutamine was used as nitrogen source and the concentration was controlled at 
2 g/L; the initial pH was controlled at 7.0, the shaking speed was controlled at 180 r/min, and extracellular polysaccharides 
were cultured at 26℃ for 12 d. 【Conclusion】Under the above-mentioned fermentation conditions, the yield of extracellular polysaccharide was 1.08 g/L, in which the content of polysaccharide was 71.73% and the content of protein was 8.62%. This 
provided an theoretical basis for the industrial production and application of A. aegerita polysaccharides.]]></description>
<pubDate>2019/7/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[郑晓雅 1
，殷伟伟 1
，张 松 1
，兰 瑛 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>郑晓雅 1
，殷伟伟 1
，张 松 1
，兰 瑛 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905004&flag=1]]></guid><cfi:id>166</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comparison of Fruit Quality and Yield of‘Rainbow’Guava Under Two Production Modes]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The effects of three-time-per-year fruiting production model (TH-T FPM) and 
two-time-per-year fruiting production model (TW-T FPM) on fruit quality, commodity rate, yield and output value 
of‘Rainbow’guava were compared in order to provide references for the promotion and plantation of‘Rainbow’guava in 
south Fujian.【Method】The 3-year-old‘Rainbow’guava trees planted in Zhangzhou, Fujian Province were used as the 
experimental material. Under the two production modes, the differences in quality, commodity rate, yield and output value 
of‘Rainbow’guava fruits harvested in each crop during the two consecutive production years from 2016 to 2018 were 
compared. 【Result】 In terms of fruit quality, the fruits harvested in winter under the TH-T FPM were the best, followed 
by the fruits harvested in late autumn and early spring under the TW-T FPM. The quality of fruits harvested in autumn and 
spring under the TH-T FPM was poor. In terms of fruit commodity rate, the fruits harvested in other seasons were above 80% 
except that the fruits harvested in autumn under the TH-T FPM were low. The yield and output value of the TH-T FPM were 
41.97 t/hm2, 41.92 t/hm2 and 269 000 yuan/hm2, 259 600 yuan/hm2, respectively, and yield and output value of the TW-T 
FPM were 41.55 t/hm2, 40.76 t/hm2 and 253 400 yuan/hm2, 244 700 yuan/hm2, respectively during the two consecutive production years. Although the yield and output value of the TH-T FPM were slightly higher than those of the TH-T FPM, the 
production cost of TH-T FPM were about 30 000 yuan/hm2 higher than that of the TW-T FPM. Therefore, after deducting the 
production cost, the actual income of the TW-T FPM was higher than that of the TH-T FPM.【Conclusion】 The two-timeper-year fruiting production model of‘Rainbow’guava is suitable for promotion in south Fujian .]]></description>
<pubDate>2019/7/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[张朝坤，康月惠，康仕成]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>张朝坤，康月惠，康仕成</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905005&flag=1]]></guid><cfi:id>165</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Controlled Release Fertilizer on the Quality of Dianthus caryophyllus L. Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 In this study, a series of substrate formula modulated with long-acting controlled-release 
nitrogen fertilizer (urea formaldehyde foam) and active phosphorus fertilizer were used to analyze the effects of different 
fertilizer ratios on the quality of Dianthus caryophyllus seedlings, which provided theoretical basis for fertilization technology 
of D. caryophyllus. 【Methods】The height and crown diameter of D. caryophyllus planted with modulated substrates were 
measured at 0, 15 and 30 d, respectively, and the whole plants were harvested at the 30th day for the analysis of biomass, the 
amount of nitrogen and phosphorus accumulation in above-ground part and root morphology indicators. 【Results】 At the 
30th day, all the measured indicators (biomass of leave, stem and root, total root length, total root surface area, total N and P 
of above-ground part) of T4 treatment (annual flower matrix added with compound fertilizer 1.6 kg/m3, slow release fertilizer 1.14 kg/m3, active phosphorus 5.71 kg/m3, urea formaldehyde 6.05 kg/m3 as the cultivation substrate)reached the maximum 
values, and such indicators had significant difference with those of CK treatment (annual flower matrix added with compound 
fertilizer 4.8 kg/m3, slow release fertilizer 3.6 kg/m3 as cultivation substrate). All the measured indicators (biomass of leave, stem 
and root, total root length, total root surface area, total N and P of above-ground part) of T4 treatment were 3.12 g/plant, 1.75 
g/plant, 0.82 g/plant, 5.15 m/plant, 526 cm2/plant, 179 mg/plant and 21.32 mg/plant, respectively. 【Conclusion】Substrates 
modulated with controlled-release nitrogen fertilizer (urea formaldehyde foam) and active phosphorus fertilizer had significant 
effects on the growth of D. caryophyllus. In consideration of biomass, total root length, total root surface area, nitrogen and 
phosphorus accumulation of the above-ground part, the growth effect of D. caryophyllus seedlings under T4 treatment is the best, 
which not only can obtain better morphological indicators, but also improve the accumulation of nitrogen phosphate fertilizer.]]></description>
<pubDate>2019/7/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[郑富海 1
，涂超峰 2，叶少萍 1
，贺立华 2，许昌超 1
，刘　勇 2，张俊涛 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>郑富海 1
，涂超峰 2，叶少萍 1
，贺立华 2，许昌超 1
，刘　勇 2，张俊涛 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905006&flag=1]]></guid><cfi:id>164</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Stoichiometric Characteristics of Leaves of Nine Major Plantation Species in Southern China]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】By studying the stoichiometric characteristics of nitrogen (N), phosphorus (P) and potassium 
(K) in the leaves of nine major plantation species in Southern China, the basic stoichiometric data of the main plantation 
species were enriched, which provided decision-making basis for forest planting and management in Southern China.
【Method】The leaves samples were collected from the average trees in the field, and then the contents of N, P and K were 
measured .【Conclusion】The average contents of N, P and K of nine tree species were 13.90 mg/g, 1.39 mg/g and 8.70 mg/g, 
respectively. There were significant differences in the contents of N, P and K among different tree species, and the contents of 
N, P and K of Acacia crassicarpa were much higher than those of other species. The ratios of N∶P, N∶K and K∶P in leaves 
of nine species ranged from 7.79 to 17.79, from 1.15 to 2.16, and from 0.07 to 0.25, respectively. There was an extremely 
significant positive correlation between the contents of N and P in different species, and there were synergistic effects. There 
were significant differences in the contents of N and P in leaves of different life-form tree species, and the contents of N and 
P in leaves of broad-leaved tree were significantly higher than those of coniferous tree.【Conclusion】The growth of 9 tree 
species were mainly restricted by nitrogen element, which indicated that the nutrients management should be strengthened 
and the application of nitrogen fertilizer should be increased in the later stage of forest management.]]></description>
<pubDate>2019/7/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[王家妍 1
，魏国余 1
，韦铄星 2，莫雅芳 1
，蒋 燚 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>王家妍 1
，魏国余 1
，韦铄星 2，莫雅芳 1
，蒋 燚 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201905007&flag=1]]></guid><cfi:id>163</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Combined Application of Magnesium, Calcium and Boron Fertilizers on Leaf and Fruit Quality of ‘Yongjiazaoxiangyou’Pomelo]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The effects of magnesium fertilizer and its combined application with calcium and boron
fertilizers on the leaves and fruit quality of ‘Yongjiazaoxiangyou’ pomelo were studied based on magnesium deficiency of
‘Yongjiazaoxiangyou’ pomelo.【Method】 The experiments about applying different amount of magnesium fertilizer and its combined application of calcium and boron fertilizers were carried out in the bud stage of ‘Yongjiazaoxiangyou’ pomelo.
In mid-July, the spring leaves were collected from different azimuths of the tree and the contents of Mg, Ca, B and chlorophyll
of ‘Yongjiazaoxiangyou’ pomelo leaves were measured. Fruits of the same size were harvested when ripe and the contents of
fruit soluble solids, soluble sugar, and total acids were determined. Then the data was analyzed by SPSS software.【Result】The
contents of chlorophyll and Mg of ‘Yongjiazaoxiangyou’ pomelo leaves were significantly increased by adding magnesium
fertilizer. The contents of chlorophyll a, chlorophyll b and Mg of the leaves treated with 0.5 kg magnesium fertilizer per plant
reached 1.64 g/kg, 0.69 g/kg and 0.32% respectively, with the increase of 22.4%, 11.3% and 0.11 %, respectively compared
with those of control,group and the content of Mg reached the appropriate standard for Citrus leaves. The contents of soluble
solids and soluble sugar of ‘Yongjiazaoxiangyou’ pomelo fruit were also increased by applying magnesium fertilizer, and the
highest contents of fruit soluble solids and soluble sugar were obtained when treated with 0.5 kg magnesium fertilizer per plant
and the highest contents of which were 1.07% and 1.08% higher than those of the control group. The contents of Mg, Ca and B of
the leaves treated with the combination of magnesium fertilizer, calcium fertilizer and boron fertilizer could be increased at the
same time, especially when treated with the combination of magnesium sulfate, quicklime and borax, the contents of Mg, Ca and
B in the leaves being 0.31%, 2.83% and 48.2 mg/kg, respectively.【Conclusion】The contents of chlorophyll and magnesium
of‘Yongjiazaoxiangyou’ leaves, soluble solids and soluble sugar of fruit were increased, and the contents of total acid of
fruit were reduced by adding magnesium fertilizer. The contents of Mg, Ca and B of leaves were significantly increased by the
combined application of magnesium, calcium and boron fertilizers, and the promotion effect was stronger than that of single
application of magnesium fertilizer.]]></description>
<pubDate>2019/5/23 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈  巍 1
，郭秀珠 2，胡  丹 3，刘俊才4，黄品湖 2，刘冬峰 2，林绍生 2，宋  洋 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈  巍 1
，郭秀珠 2，胡  丹 3，刘俊才4，黄品湖 2，刘冬峰 2，林绍生 2，宋  洋 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904004&flag=1]]></guid><cfi:id>162</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Bagging Time and Bag Materials on Yield and Quality of Pineapple]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The study was conducted to explore the effects of bagging time and bag materials on yield
and quality of golden pineapple and to provide theoretical reference for high yield and high efficiency cultivation of golden
pineapple.【Method】The pineapple were bagged on the 60th, 80th, and 100th day after flowers withering, with white, blue,
green, yellow and virgin pulp paper bags, white non-woven bags and black plastic bags, then effects of different bagging time
and bag materials on the shape, yield and quality of pineapple were analyzed.【Result】 The results showed that bagging
with green virgin pulp paper bags on the 60th day after withering of flowers was beneficial to the increase of fruit length and
width. Bagging with black plastic bags could significantly increase the fruitlet number of pineapple, and the effect was better on the 60th day after withering of flowers. The weight per fruit of pineapple was the highest when black plastic bag was used,
which increased by 11%-77% compared with other treatments. The edible rate was the highest when black plastic bag was used,
which increased by 2%-11% compared with other treatments. When black plastic bag was used on 60th day after the withering
of flowers, the weight per fruit and edible rate reached highest, being 1 316.54 g and 69.38%, respectively. The soluble solids,
soluble sugar and vitamin C of pineapple fruits with black plastic bags showed better effects, reaching 11.55%, 14.95% and
179.34%, respectively and the effect was the best on the 60th day after withering of flowers. The total acidity of pineapple fruit
was the lowest when black plastic bags were used, but there was no significant difference among bagging time.【Conclusion】
Bagging with black plastic bags on the 60th day after withering of flowers was beneficial to increase the weight per fruit and
edible rate of pineapple, improve the soluble solids, soluble sugar and vitamin C, and reduce the total acidity of pineapple fruit.]]></description>
<pubDate>2019/5/23 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[赵维峰 1
，张艳芳 2，刘胜辉 3，魏长宾 3，施忠海 1
，邓大华 1
，杨文秀 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>赵维峰 1
，张艳芳 2，刘胜辉 3，魏长宾 3，施忠海 1
，邓大华 1
，杨文秀 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904005&flag=1]]></guid><cfi:id>161</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cloning of Blueberry Vco-miR_n10 and Analysis of Its Response to Drought]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】MicroRNAs (miRNAs) are a class of endogenous, single-stranded and non-coding small
RNA molecules that are involved in the regulation of gene expression after transcription in plants and animals. Vco-miR_
n10 is a novel miRNA in blueberry, and its function remains unknown. In the present study, a preliminary functional analysis
of blueberry Vco-miR_n10 was carried out.【Method】Based on the previous data from high throughput sequencing of
small RNA in blueberry, the precursor sequence (224 nt) of the novel miRNA (Vco-miR_n10) was cloned and sequenced.
The secondary structure of its precursor sequence was predicted by mfold web server. The expression vector, 35Spro::preVco-miR_n10, was constructed by Gateway system and transferred into wild type Arabidopsis thaliana and its phenotype
under the conditions of normal growth and 300 mmol/L mannitol treatment was observed and analyzed, respectively.【Result】
The precursor sequence of Vco-miR_n10 was obtained by cloning, and structure analysis indicated that the precursor shows
near-perfect stem-loop structure with no more than 2 mismatches. In addition, the mature sequence was located on the 3’stem arm. No significant phenotypic variation was observed in transgenic plants under the normal growth condition. However, under
the drought condition simulated by 300 mmol/L mannitol, the germination rate (33.53%, 37.69%) and cotyledon greening rate
(33.53%, 37.69%) of two transgenic lines (Vco-miR_n10-24 and Vco-miR_n10-52) were significantly lower than those of
wild type A. thalian (germination rate: 67.72%; cotyledon greening rate:66.33%).【Conclusion】These results indicated that
blueberry Vco-miR_n10 could respond to the mannitol-simulated drought stress, and reduce the drought tolerance in A. thalian
through affecting seed germination and cotyledon greening, which showed that blueberry Vco-miR_n10 might play a regulatory
role in plant response to drought stress.]]></description>
<pubDate>2019/5/23 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[单炳辉，谢  鑫，李  季，柴普今，李鹤鹏，张琳贺，翟璐璐]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>单炳辉，谢  鑫，李  季，柴普今，李鹤鹏，张琳贺，翟璐璐</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201904006&flag=1]]></guid><cfi:id>160</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Rapid Propagation Technology for Caladium bicolor Tissue]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The research aimed to study the optimal hormone concentration for the rapid propagation
of caladium bicolor tissue, and to provide reference and help for its factory production.【Method】Young leaves
developing from C. hortulanum ‘Wightii’ and C. hortulanum ‘Postman Joyner’ were used as the explant to make
an optimization experiment of callus induction and callus proliferation differentiation system, by taking tissue culture
and propagation in different formulations of 6-BA and NAA on MS basal medium. 【Result】Different combinations
of plant growth regulators showed different effects on callus induction, differentiation and proliferation within a certain
mass concentration. All the C. bicolors could induce callus and regenerated plants in these different formulations. After
transplanting to the matrix mixed with peat soil, vermiculite and perlite, the survival rate of seedling was more than 90%.
【Conclusion】The results showed that MS+6-BA 4.0 mg/L+NAA 0.5 mg/L was the best culture medium for callus
induction of C. bicolor with short start-up time and high cure rate, while MS+6-BA 2.0 mg/L+NAA 0.2 mg/L was most
effective for differentiation and proliferation with the highest callus differentiation rate and the best growth of test-tube
seedlings.]]></description>
<pubDate>2019/4/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[吴雅露，王  颖，陈梦涛，应鹏飞，蒋玉蓉，陆国权]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>吴雅露，王  颖，陈梦涛，应鹏飞，蒋玉蓉，陆国权</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903005&flag=1]]></guid><cfi:id>159</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification of A Strain of Suspected Wild Tricholoma giganteum and Screening of Mycelium Culture Medium]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】A wild strain of suspected Tricholoma giganteum collected in Shaoguan University,
Northern Guangdong Province was identified and the suitable mycelium culture medium was screened, which provided basis
and reference for the enrichment of its biological resources and the development and utilization of the strain. 【Method】
Using the wild strain of the suspected T. giganteum as tested material, the pure mycelium was isolated and purified by tissue
isolation from the wild strain fruiting body. Identification was carried out by the morphological characteristics analysis of
fruiting bodies, biological characteristics analysis of mycelium, and ITS sequence cloning and analysis. In order to screen the
most suitable mycelium culture medium, mycelium culture experiment was carried out in PSA medium, yeast extract medium
and cottonseed shell medium, respectively.【Result】The cloning and analysis of ITS sequence showed that the suspected
wild T. giganteum had high similarity with the T. giganteum that reported in GenBank and Ident was between 82.23% and
90.06%, The sequence showed highest similarity with sequence JX041888.1 and its Ident was 90.06%. Combined with traditional morphological analysis, the strain was identified as wild T. giganteum and named as Tsg1. The mycelium could
be cultured in PSA medium, yeast extract medium and cottonseed shell medium. But the mycelium was the densest and the
strongest in the cottonseed shell medium, with the growth rate of 3.68 mm/d.【Conclusion】This strain is a wild T. giganteum,
and cottonseed shell medium is the most suitable medium for mycelium culture.]]></description>
<pubDate>2019/4/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[李文豪 1
，刘  明 2，康林芝 3，肖自添 2，何焕清 2，徐  江 2，胡婷婷 1
，刘  主]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>李文豪 1
，刘  明 2，康林芝 3，肖自添 2，何焕清 2，徐  江 2，胡婷婷 1
，刘  主</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903006&flag=1]]></guid><cfi:id>158</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Fertilization and Light Treatments on Growth Characteristics of Myrciaria cauliflora Berg]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The response of Myrciaria cauliflora Berg to different fertilization and light treatments
were studied.【Method】Taking the 4-year-old raw M. cauliflora as experimental objects, the effects of different
fertilization and light treatments on the growth characteristics of M. cauliflora were studied.【Result】Different types
and concentrations of fertilizer were conductive to the increase in plant height, ground diameter and crown width of the
M. cauliflora. The maximum increase in plant height was found in the condition of 0.2 kg compound fertilizer/plant,
increased by 15.51% compared with that of non-fertilization(CK); The maximum increase in ground diameter of M. 
cauliflora was found in the condition of 0.2 kg compound fertilizer/plant, increased by 8.49% compared with that of the
CK; The maximum increase in crown width of the M. cauliflora was found in the condition of 0.1 kg nitrogen fertilizer per
plant, increased by 15.37% compared with that of the CK. Different concentrations of fertilizer had the same effect on the
growth of ground diameter and plant height, but had different effects on crown width. The growth of ground diameter and
plant height increased with the increase of fertilization amount. The contents of chlorophyll a and b increased under the
treatments of different types and concentrations of fertilizers. Among all the treatments, the treatment with the compound
fertilizer of 0.2 kg/plant had the greatest effect on the improvement of chlorophyll a and b content; Shading of different degrees had no effect on the growth of plant height of M. cauliflora, but inhibited the growth of ground diameter and the
content of chlorophyll a and b to some extent.【Conclusion】The application of compound fertilizer of 0.2 kg/plant in
production had a promoting effect on the growth of plant height and ground diameter of M. cauliflora Berg.]]></description>
<pubDate>2019/4/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[杜丽敏，陈  培，邢文婷，董晓娜，陈显臻]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>杜丽敏，陈  培，邢文婷，董晓娜，陈显臻</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903007&flag=1]]></guid><cfi:id>157</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Establishment of in vitro Regeneration System of Lilium Sorbonne and Siberia]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The suitable induction medium, proliferation medium, rooting medium and the optimal
transformation receptor system were determined for the in vitro regeneration systems of Lilium Sorbonne and Siberia.【Method】
The bulbs of Sorbonne and Siberia were used as explants to compare their growth status in the medium with different hormone
ratios. And the optimal conditions of callus and adventitious bud induction, subculture proliferation, induction/rooting
medium and kanamycin sensitivity were obtained.【Result】The best induction medium for Sorbonne was MS+2,4-D 1.5-
2.0 mg/L, while the best induction medium for Siberia was MS+2,4-D 1.0-1.5 mg/L. The optimal subculture proliferation
medium for the two Lilium species was MS+6-BA 0.5 mg/L+NAA 0.2 mg/L. The optimal rooting media for the two Lilium 
species were 1/2MS+NAA 0.2 mg/L and 1/2MS+IBA 0.2 mg/L, respectively. When screening transformed plants, kanamycin
at a mass concentration of 150 mg/L was sufficient to inhibit the growth of non-transformed cells or bacteria.【Conclusion】
The theoretical basis was provided for the industrialized production and genetic transformation and regeneration system of
Lilium oriental varieties.]]></description>
<pubDate>2019/4/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[崔均涛 1
，刘凤民 2，张伟丽 3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>崔均涛 1
，刘凤民 2，张伟丽 3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201903008&flag=1]]></guid><cfi:id>156</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on the Outside Tube Micrografting Techniques for the Tissue Culture Seedlings ofMomordica charantia Linn.]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to establish an outside tube micrografting technique for the tissue cultured
buds of the broad-shoulder bitter gourd (Momordica charantia Linn.) in order to solve the problem of weak growth of
the tissue cultured buds at present. 【Method】Taking 5-7 cm healthy tissue culture seedlings of Dingpei No.1 bitter
gourd as the scion and tower gourd (Luffa cylindrica) and pumpkin (Cucurbita moschata D.) seedlings as the rootstocks,
the effect of different grafting methods(including time of hardening tissue culture seedling, different moisture methods
of graft unions, ages and species of root stocks and scion interfaces dipped with different concentrations of 6-BA and
sprayed with different concentrations of sucrose) on the graft survival rate, increment of scions and total stain heights
of grafted seedlings were studied.【Result】The optimal time to harden tissue culture seedlings of the broad-shoulder
bitter gourd was 6-7 days. It was easy to package the graft unions by using rubber casing and grafting clip and remarkable
moisturizing effect could be obtained. The best rootstock was the towel gourd “Yinzhen No.1” seedling with two piece
of true leaf. The optimal concentrations of 6-BA and sucrose were 0.5 mol/L and 6%, respectively, and the highest graft
survival rate of 65.9% could be obtained.【Conclusion】It was the first time to establish an outside tube micrografting
technique for the tissue cultured buds of the broad-shoulder bitter gourd. The application of such technique will improve the weak growth and the survival rate of tissue culture seedling of the broad-shoulder bitter gourd.]]></description>
<pubDate>2019/3/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[吴  蓓，张木清，郑岩松，戴修纯]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>吴  蓓，张木清，郑岩松，戴修纯</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902006&flag=1]]></guid><cfi:id>155</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Difference of Light Quality Under Fly Nets with Different Colours and Its Effects on the Growth and Yield of Cowpea]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To investigate the difference of light quality under fly nets with different colors and its
effect on the growth and yield of cowpea, and provide theoretical references for the light control technology of cowpea.
【Method】Open field was used as a contrast to study the spectral components and the difference in the growth period,
growth characteristics, dry matter distribution and yield of cowpea under fly nets with seven different colors (coffee, yellow,
red, green, blue, silver grey and white). 【Result】Compared with open field, under the fly nets, the proportion of far-red
light and near-infrared light increased while the proportion of ultraviolet light and red light/far-red light decreased. In the
green net, the proportion of green light and blue-violet light increased, among which the green light increased by 3.29%;
while in the red net, the proportion of red light increased by 24.96% than the contrast; Under the fly nets, the sprouting time
of cowpea was 5 to 7 days ahead of schedule, and the initial flowering of cowpea covered by yellow net, red net and blue
net was earlier than that in the open field. Compared with the open field, the leaves thickness decreased significantly, and
the plant height, single leaf area and internode length increased, among which the change under the red net was the most
significant. The coverage of fly nets could increase the total yield and the yield at early stage of cowpea, among which the
total output under the white net was the largest, followed by the green net, which were 43.46% and 42.02% higher than the
contrast respectively. The difference between the two was not significant. 【Conclusion】It is recommended to use white
nets or green nets in cowpea production to increase yield and release products earlier.]]></description>
<pubDate>2019/3/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈连珠，张雪彬，陶  凯，杨小锋]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈连珠，张雪彬，陶  凯，杨小锋</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902007&flag=1]]></guid><cfi:id>154</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Water-holding Capacity of Soil Layer and Litter Layer of Chinese Fir Plantations with Different Stand Ages in Northern Guangdong]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To study the water-holding capacity of soil layer and litter layer of Chinese fir (Cunninghamia 
lanceolata) plantations with different ages in northern Guangdong, and to provide basis for improving the quality and 
ecology of Chinese fir Plantations in northern Guangdong.【Method】The young Chinese fir plantations (7-8 years), 
middle-aged Chinese fir plantations (16-18 years) and near-mature Chinese fir plantations (23-25 years) in three forest 
farms in Shaoguan City, Guangdong Province were used for study, and the ring knife soaking method and indoor soaking 
method were applied in the comparative study of the water-holding capacity of soil layer and litter layer. 【Result】In soil layer of 0~30 cm, the soil bulk density of young Chinese fir plantations (1.22 g/cm3) was the highest, followed by middleaged Chinese fir plantations (1.17 g/cm3) and near-mature Chinese fir plantations (1.14 g/cm3); the capillary porosity of 
young Chinese fir plantations was the largest (39.66%), followed by middle-aged Chinese fir plantations (34.04%) and nearmature Chinese fir plantations (32.93%); the effective water holding capacity of young Chinese fir plantations was the largest 
(650.70 t/hm2), followed by near-mature Chinese fir plantations (627.60 t/hm2) and middle-aged Chinese fir plantations 
(524.40 t/hm2), but the difference in the above the aspects was not significant. The effective litter storage capacity of middleaged Chinese fir plantations was the largest (11.01 t/hm2), followed by near-mature Chinese fir plantations (10.95 t/hm2) and 
young Chinese fir plantations (4.04 t/hm2), and the capacity of middle-aged Chinese fir plantations was significantly higher 
than that of the two. Regression analysis showed that the litter had the highest water absorption rate within 0.5 h after water 
soaking, then the rate decreased rapidly, and the water-holding capacity became stable at 12 h after water soaking. The 
water-holding capacity of litter was logarithmically related to the soaking time (R2 > 0.92), and the water absorption rate was 
in a power function relationship with the soaking time (R2 > 0.97), and the water absorption rate of near-mature Chinese fir 
plantations was the highest, followed by middle-aged Chinese fir plantations and young Chinese fir plantations. 【Conclusion】
The soil water-holding capacity of soil layer of Chinese fir plantations with different forest ages is as follows: young Chinese 
fir plantations had the largest capacity, followed by near-mature Chinese fir plantations and middle-aged Chinese fir 
plantations; as to the water-holding capacity of litter layer, the near-mature Chinese fir plantations had the largest, followed 
by middle-aged Chinese fir plantations and young Chinese fir plantations.]]></description>
<pubDate>2019/3/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[邓厚银 1，2，晏  姝 2，王润辉 2，胡德活 2，郑会全 2，韦如萍 2，梁  机 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>邓厚银 1，2，晏  姝 2，王润辉 2，胡德活 2，郑会全 2，韦如萍 2，梁  机 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902008&flag=1]]></guid><cfi:id>153</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Suspension Culture and Plant Regeneration of Oil Palm (Elaeis guineensis Jacq.)]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902009&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The objective was to establish a plant regeneration technology system for the suspension
culture of oil palm embryonic somatic cells, and to provide a technical platform and references for the efficient
breeding, cell biology research and biotechnology breeding research of the clonal planting materials of excellent oil
palm strains. 【Method】 Nodular callus derived from mature oil palm core leaves was used as starting materials for
suspension cultures.The effects of different hormone concentrations and their combinations on the proliferation of oil palm suspension cell lines and the development of subsequent somatic embryos were analyzed by using the combination
of different concentrations of 2, 4-D, Dicamba and Decoyinine to induce friable embryogenic callus. 【Result】The
combinations of Decoyinine (0.1 mg/L) with a certain concentration range of 2,4-D or Dicamba could promote the formation
of embryogenic callus. The combination of 0.1 mg/L Decoyinine and 1 mg/L Dicamba showed the best induction effect on
friable embryogenic callus, with an induction rate of 28.67%. A suspension cell line with uniform growth state and good
dispersion could be established after suspension culture of friable embryogenic callus with vigorous growth and loose texture
for 21 days. The combination of 0.3 mg/L Decoyinine and 1 mg/L Dicamba was beneficial to the proliferation of suspension
cell lines and the subsequent somatic embryos development. The suspension cells were transferred to embryo induction
medium (MS + glutamine 100 mg/L + sucrose 30 g/L), and cultured under 2 000 lx illumination at 28(±2)℃ . The culture
medium was replaced every two weeks. After 60 days of culture, embryos with the diameter larger than 1mm were obtained,
with a maximum of 295 embryos per flask. Regenerated plants could be obtained by transferring the embryos with the
diameter larger than 1mm to solid medium. 【Conclusion】 The combination of appropriate concentration of Decoyinine with
2,4-D or Dicamba could promote the formation of friable embryogenic callus from nodular callus of oil palm core leaves. A
suspension cell line with uniform growth state and good dispersity could be established after suspension culture of friable
embryogenic callus with vigorous growth and loose texture for 21 days. It was found that the liquid medium containing
appropriate concentration of Decoyinine and Dicamba was beneficial to the proliferation of suspension cell line and the
development of subsequent somatic embryos.]]></description>
<pubDate>2019/3/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[潘登浪 1，2，邹积鑫 1，2，曾宪海 1，2，林位夫 1，2，Khengtuan Chean1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>潘登浪 1，2，邹积鑫 1，2，曾宪海 1，2，林位夫 1，2，Khengtuan Chean1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201902009&flag=1]]></guid><cfi:id>152</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cumulative Effects of Seawater Stress on Cell Damage of Mesembryanthemum crystallinum L. and Small Organic Molecules of Osmoregulation Substances]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The objective is to explore the cumulative effects of seawater stress on the cell damage of 
Mesembryanthemum crystallinum L., proline, soluble sugar and betaine.【Method】A pot experiment was conducted on M. 
crystallinum L. to study the changes of cells damage（MDA and cell membrane permeability） and small organic molecular 
osmoregulation substances （soluble sugar, betaine and proline） with seawater stress at different concentrations （20%, 
30%, 40%, 50%, 60%）. 【Result】With the increase of seawater concentration: the permeability of cell membranes and 
the content of soluble sugar were enhanced in each branch of M. crystallinum L. ;MDA and the content of betaine increased in the first and second branches, and increased and then decreased in tertiary branches; and the content of proline increased and 
then decreased in all branches. A significant positive correlation was discovered between seawater stress and the permeability 
of cell membranes and the content of soluble sugar. For small organic molecules osmoregulation substances, only the content 
of soluble sugar had a significant positive correlation with concentration of seawater and lipid peroxidation of membranes.
【Conclusion】With the increase of seawater concentration, the damage of M. crystallinum L. cell membrane is aggravated. 
Soluble sugar, betaine and proline play an important role in osmotic regulation in different seawater concentrations and different 
growth stages. Moreover, their correlationwith seawater stress is as follows: soluble sugar > betaine > proline.]]></description>
<pubDate>2019/3/12 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[段瑞军1，吴朝波 2，3，王  军1，黄圣卓 1，梅文莉 1,戴好富1
，戴好富]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>段瑞军1，吴朝波 2，3，王  军1，黄圣卓 1，梅文莉 1,戴好富1
，戴好富</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901004&flag=1]]></guid><cfi:id>151</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation on Female Flower Fertilization and Fruit Setting of 43 Litchi (Litchi chinensis Sonn.) Germplasm Resources]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The present study is to know the number of female flowers per panicle, fertilization and 
fruit setting characteristics of different litchi germplasm resources in order to provide references for utilization of Litchi 
germplasm resources and variety breeding.【Methods】43 litchi germplasm resources from the National Germplasm – 
Guangzhou Litchi Nursery were used to investigate the differences in their biological traits such as number of female flowers 
per panicle, fertilization rate and weekly fruit setting rate in 2018.【Results】There were differences in the same traits for 
different litchi germplasm. The number of female flowers per panicle varied from 449.33 in‘Feizixiao’to 69 in ‘Cuixiangli’. 
The highest and lowest fertilization rates were found in‘Chenzi’(60.20%) and ‘Feizixiao’(11.63%) respectively. The 
highest and lowest final fruit setting rates were found in ‘Zengbu Zaoheiye’ (26.06%) and ‘Ziniangxi’ (1.03%), 
respectively. All the materials under test were divided into three main groups through clustering analysis. There were seven 
germplasms in Group Ⅰ , with high fruit setting rate; There were ten germplasms in Group Ⅱ , with low fruit setting rate; 
and there were twenty-six germplasms in Group III, with the value of fruit setting rate was between that of Group Ⅰ and Group Ⅱ . The dynamic change on fruit setting rate of each group was consistent with the final fruit setting rate.【Conclusion】
A significant negative correlation existed between the number of female flowers per panicle and the fertilization rate.The degree 
of fruit abscission within one month after flowering had the greatest impact on the final fruit setting. The fertilization and fruit 
setting characteristics of the above varieties will provide a reliable basis for the management of litchi flowers and the parental 
selection in cross breeding.]]></description>
<pubDate>2019/3/12 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[严  倩，吴洁芳，姜永华，陈洁珍，蔡长河，欧良喜]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>严  倩，吴洁芳，姜永华，陈洁珍，蔡长河，欧良喜</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901005&flag=1]]></guid><cfi:id>150</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Isolation and Preliminary Identification of Endophytic Bacteria in the Root Nodule of Paulownia]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to explore the symbiotic nitrogen fixation system of non-leguminous plants 
Paulownia and microorganism, a preliminary study was carried out on isolated culture conditions and the phylogenetic 
position of endophyic bacteria in Paulowia root nodules.【Method】The endophytic bacteria isolated and purified from 
the root nodules of Paulownia collected from Qinzhou of Guangxi Province were subjected to traditional physiological 
and biochemical studies and 16S rDNA phylogenetic analysis.【Result】In the nine strains of endophytic bacteria 
isolated and purified, most of the bacterial strains could make good use of 8 carbon sources; 78% of the bacterial strains 
could use ammonium salt, and 89% of the bacterial strains could use nitrate. All tested bacterial strains were negative 
in the 3-ketolactose and starch hydrolysis test; 89% of the strains could use citrate. Except that the bacterial strains 
PG-7 produced alkali, the rest of bacterial strains produced acid in the B.T.B reaction; 33% of the strains could reduce 
nitrate; 56% of the strains grew well on beef extract peptone medium, and most strains have the general physiological 
and biochemical characteristics of leguminous rhizobium after identification. According to 16S rDNA complete sequence analysis, nine bacterial strains can be divided into four bacteria genera, among which the bacterial stains PG-1 and PG-2 
belong to Agrobacterium, PG-3, PG-5, PG-6, PG-8 and PG-9 belong to Rhizobium, PG-4 belongs to Herbaspirillum and PG-7 
belongs to Burkholderia.【Conclusion】The endophytic bacteria isolated from the same root nodule have great differences in 
their physiological and biochemical characteristics of endogenous bacteria , and showed genetic diversity.]]></description>
<pubDate>2019/3/12 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[丁  玮1
，吕成群 1
，黄宝灵1
，李昆龙 2，陈振飞 2，任  涵 1
，康  凯 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>丁  玮1
，吕成群 1
，黄宝灵1
，李昆龙 2，陈振飞 2，任  涵 1
，康  凯 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901006&flag=1]]></guid><cfi:id>149</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Microbial Diversity in Rhizosphere Soil of Davidia involucrate by High-throughput Sequencing]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The rhizosphere soil of Davidia involucrate in different regions was tested in order to 
understand the species and diversity of the rhizosphere microorganisms, and provide basic data and theoretical basis for the 
introduction and breeding of D. involucrate. 【Method】High-throughput sequencing was applied to study the microbial 
species and diversity of rhizosphere soil of D. involucrate in three regions of Zhaotong, and the species composition and 
abundance, Alpha diversity, Beta diversity and microbial community structure were analyzed. 【Result】The results 
showed that Alphaproteobacteria was the most abundant in the bacterial community (>17.02%), Fungal community was 
obviously different in three regions. Pezizomycetes was the most abundant fungi class (17.01%) in Yongshansanjiangkou, 
Archaeorhizomycetes was the most abundant fungi class (29.79%) in Yiliangxiaocaoba, Sordariomycetes was the most 
abundant fungi class(20.77%) in Zhenxiongtangfang. Among the three regions, the microbial community structures in 
Sanjiangkou, Yongshan and Tangfang, Zhenxiong were highly similar. The rhizosphere soil in Sanjiangkou, Yongshan 
reflected the richest bacterial diversity, while that in Tangfang, Zhenxiong mirrored the richest fungal diversity. 【Conclusion】
The microbial community in rhizosphere soil of D. involucrate in the three regions had high biodiversity, but there were 
differences in the distribution of species composition.]]></description>
<pubDate>2019/3/12 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[程立君 1，2，王  磊 1
，吴银梅 1，2，高兴国 1
，师  睿 1
，胡志芳 3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>程立君 1，2，王  磊 1
，吴银梅 1，2，高兴国 1
，师  睿 1
，胡志芳 3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201901007&flag=1]]></guid><cfi:id>148</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Electricity Generation Performance of Plant Microbial FuelCells Separately Constructed by Four Wetland Plants]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Plant-microbial fuel cell (P-MFC) is a sustainable way for renewable energy production, 
but the electricity generation performance of P-MFC constructed by different plants and its relationship with external 
environmental factors and individual plant physiology remains to be explored.【Method】In this study, different P-MFCs 
were constructed by 4 wetland plants, including Brachiaria mutica, Cyperus malaccensis var. brevifolius, Pycreus 
polystachyus and Paspalum paspaloides. The performance of P-MFCs and their relationships with radial oxygen loss (ROL) 
and external environmental factors(pH, dissolved oxygen and temperature) were analyzed.【Result】The results showed 
that the 4 constructed P-MFCs had significantly different performance in voltage output, the average voltage output were 
4.25±0.35, 1.57±0.35, 0.20±0.09 and 4.38±0.56 mW/m2 for B. mutica, C. malaccensis var. brevifolius, P. polystachyus
and P. paspaloides, respectively. P-MFCs constructed with B. mutica and P. paspaloides produced more energy in general.This may be related to the lower rate of oxygen loss of B. mutica and the lower and stable pH in the cathode of P. paspaloidesMFC. The lower ROL helped to maintain a lower anode potential in B. mutica-MFC, while the lower cathode pH environment 
contributed to the higher cathode potential in P. paspaloides-MFC.【Conclusion】When constructing P-MFCs from wetland 
plants, the root features especially the root oxygen physiology should be taken into consideration.]]></description>
<pubDate>2020/3/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[刘海林，陈金峰，邹春萍]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>刘海林，陈金峰，邹春萍</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912004&flag=1]]></guid><cfi:id>147</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Bioinformatics Analysis of RAV/PLCGene in Populus trichocarpa]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to predict protein structure and features of RAV/PLC in Populus 
trichocarpa based on bioinformatics analysis.【Method】RAV/PLC gene sequence was obtained from Phytozome database 
with PLC (Phospholipases C) as the key word and multiple bioinformatics tools were used to analyze RAV/PLC gene and protein 
sequence.【Results】A 1 650 bp open reading frame (Potri. 018G109200) was identified from Phytozome in P. trichocarpa, 
encoding 549 amino acids and a special peptide with a RAV domain and a PLC domain. The predicted molecular weight for 
RAV/PLC was 62.72338 ku and the theoretical pI was 9.16. A higher expression of RAV/PLC was observed in stem compared 
to leaf, bud and root. An AP2 domain, a B3 domain and a PLC-X domain were contained in RAV/PLC, and there might be a 
transmembrane helices structure between the AP2/B3 domain and the PLC-X domain. Promoter analysis showed that RAV/PLC 
might mainly be linked to light and hormone response. String delineated the function network between RAV/PLC and MYB103, 
WRKY49, ABI5, DXS2; KEGG analysis showed that this gene was mainly related to the RAV transcription factor signaling 
pathway. And the complete 3D structure was generated via homology modeling.【Conclusion】The information obtained for RAV/
PLC will provide a foundation for the cloning and signal pathway analysis of RAV/PLC.]]></description>
<pubDate>2020/3/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[孙　尧，孙　鑫，王　雷]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>孙　尧，孙　鑫，王　雷</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912005&flag=1]]></guid><cfi:id>146</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Separation Technology of Kerneland Pulp of Oil Palm Fruit]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The study was conducted to optimize oil palm kernel separator and increase the yield of palm 
oil from press. 【Method】 Taking the separator for kernel of oil palm fruit as the research object, the effects of working 
time, handling capacity and rotation speed of cutter shaft on the separation rate of pulp of oil palm fruit were analyzed. 
The pulp was extracted based on an optimal scheme, and a comparison test was conducted between the pure pulp pressing 
and the mixed pressing of kernel and pulp.【Result】It was found that the working time, handling capacity and rotation 
speed of cutter shaft had different impacts on the separation rate of oil palm pulp, and the range values were 1.64, 2.45 and 
1.15, respectively, indicating that handling capacity had the greatest influence, followed by working time, and then rotation 
speed of cutter shaft. Based on the analysis of the test data, it was concluded that the separation effect was the best when 
the working time, handing capacity and cutter shaft speed were 8min, 21 kg and 250 r/min, respectively. By conducting the 
pressing test to extract oil, the oil yield was 22%-27% when the kernel and pulp were pressed together, and the oil yield was 
35%-40% when the pure pulp was pressed.【Conclusion】Reasonable combination of working time, handling capacity and 
rotation speed of cutter shaft can help to improve the separation rate of pulp of oil palm fruit, and the oil yield of pure pulp is 
significantly improved after separation .]]></description>
<pubDate>2020/3/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[郑　爽，李　玲，邓干然，崔振德，李国杰，李玉林]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>郑　爽，李　玲，邓干然，崔振德，李国杰，李玉林</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201912006&flag=1]]></guid><cfi:id>145</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Fertilizer Treatments on the Growth of Cerasus campanulata Maxim Container Seedling]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to obtain an excellent fertilization scheme,study on the effects of different 
fertilizer treatments on Cerasus campanulata was carried out by using the one-year-old container seedling as material.
【Method】Using a randomized complete block design,the study set up four kinds of fertilization treatments consisting 
of chicken manure, NPK compound fertilizer and liquid fertilizer,and compared the growth indexes of C. campanulata.
【Result】The growth rate of plant height,ground diameter,crown diameter,number of branchlet,length of branchlet and 
number of leaves in fertilizer treatment groups were higher than those of the group without fertilizer (CK). The group which 
applied chicken manure 20 g per seedling in autumn (F1) obviously promoted C. campanulata growth,and the increments 
of growth indexes were significantly better than those of CK. The average increments of plant height,crown width andbranchlet length of F1 were 120.88, 81.18 and 79.94 cm, respectively,which were 1.99, 3.13 and 1.97 times of those of CK. The 
ground diameter, number of branchlet, and number of leaves of F1 were 10.34 mm, 9.00 and 111.00. The group which applied 
chicken manure 15 g per seedling and NPK 5 g per seedling in autumn (F2) was significantly inferior to F1 only in the number 
and length of branchlet. There were significant differences between the groups which applied NPK and liquid fertilizer in spring 
and summer (F3 and F4) and CK only in ground diameter and plant height,and the growth indexes except for ground diameter 
increment were significantly smaller than that of F1.【Conclusion】Applying fertilizer could effectively promote the growth of 
C. campanulata. Under the test conditions,the best fertilization scheme for one-year-old container seedling of C. campanulata is 
applying chicken manure 20 g per seedling in autumn.]]></description>
<pubDate>2020/1/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈端妮 1
，叶小玲 1
，胡晓敏 2，朱　军 3，冯钦钊 4，杨梓滨 4]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈端妮 1
，叶小玲 1
，胡晓敏 2，朱　军 3，冯钦钊 4，杨梓滨 4</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911003&flag=1]]></guid><cfi:id>144</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Investigation on Landscape Plant Resources, UrbanPublic Parks in Guigang City, Guangxi Province]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to provide scientific basis and practical reference for the construction of plant 
landscape in the construction of green space in Guigang City, the species resources of landscape plants and the current 
situation of green space in the city parks were investigated.【Methods】Through a field investigation on the species 
resources of landscape plants in five urban public parks in Guigang, and the consultation of relevant literature, the Lists 
of Landscape Plants in Urban Public Parks in Guigang City was compiled to conduct statistics and analysis on the species 
resources of landscape plants in those parks.【Result】 There are 334 species of landscape plants in urban public parks of 
Guigang City, which belong to 103 families and 249 genera. Eight families, including Leguminosae, Moriaceae, Palmaceae, 
Liliaceae, Euphorbiaceae, Araceae and Myrtaceae and other families, are the dominant families of landscape plant. The 
ratio of life form (arbor : bush : vine : herb） is 45.81 : 22.46 : 3.89 : 27.84, the ratio of woody plants and herbaceous plants 
is about 7 : 3, and the proportion of evergreen trees and deciduous trees is about 7:3. There are lots of flowering plants and 
foliage plants, accounting for 39.22% and 29.94%, respectively. There are 243 species of native plants, accounting for 
72.75% of the total species, and the native woody plant index is 0.75.【Conclusion】There are abundant landscape plantspecies in urban public parks in Guigang. With evergreen trees as the main species, which shows a south subtropical plant 
landscape, and the trees remain green throughout the year. In urban public parks in Guigang, the native plants are dominated, 
showing distinct regional features. The plant configuration is scientific and reasonable with rich meaning of cultural themes. 
In view of the deficiency in the application of landscape plants in park green space, some suggestions are proposed as follows: 
applying lianas according to local conditions, creating three-dimensional green landscape, enriching native woody plant species, 
controlling the invasion of exotic plants scientifically and strengthening the application of city tree and city flower s to present 
the fascination of the city.]]></description>
<pubDate>2020/1/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[李宇轩，和太平]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>李宇轩，和太平</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911004&flag=1]]></guid><cfi:id>143</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Anatomical Structure Characteristics of A Wild Plant ofExtremely Small Population Paranephelium hainanensis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to provide theoretical guidance for the ecological adaptability of Paranephelium
hainanensis, a plant species with extremely small populations (PSESP) in Hainan Province, we explored the anatomical 
structure and water transport mechanism of this species.【Method】The anatomical structure of leaf, stem, root and aerial 
root of P. hainanensis were observed by paraffin sectioning method.【Result】The leaf of P. hainanensis belonged to 
bifacial leaf, on which there were thick cuticles. The palisade tissue cells arranged in the leaf surface vertically, with a 
thickness of 66.71 μm. There were 5-7 layer cells in spongy tissue, which arranged loosely. In the primary structure of 
stem, the vascular bundle arranged closely in two rounds. There were obvious vessels on the xylem and the xylem was not 
developed. However, stem had developed phloem and marrow. In the primary structure of the root, the cortex was developed, 
accounting for 54.7% of root’s radius. The vascular bundle was highly lignified, but the phloem was underdeveloped. The 
small diameter and less number of vessels of P. hainanensis showed that the water storage capacity was poor in the root. The 
aerial roots of P. hainanensis were composed of cork, cortex, xylem, phloem and marrow. There were 3-5 lay cells in the cork 
and the marrow structure was developed, accounting for 34.60% of the radius.【Conclusion】P. hainanensis had droughttolerance structure characteristics. The seedlings were not resistant to high temperature and strong light and they were suitable 
to grow under the forest with moderate canopy. It is suggested that attention should be paid to the adaptability of P. hainanensis
to the habitat while conducting ex situ conservation.]]></description>
<pubDate>2020/1/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[崔　杰 1
，洪文君 2，刘　俊 2，陈伟玉 2，何书奋 2，罗金环 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>崔　杰 1
，洪文君 2，刘　俊 2，陈伟玉 2，何书奋 2，罗金环 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911005&flag=1]]></guid><cfi:id>142</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress in the Phenology of Heava brasiliensis Leaf]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Natural rubber is an indispensable resource of national defense strategy and plays an irreplaceable role 
in the national welfare and the people's livelihood. Phenology can directly reflect the characteristics of crops. People can 
determine the agricultural time arrangements of rubber tapping, fertilization, seedling raising, seed collection and pest control 
according to the phenology. Leaf phenology is an important aspect of rubber tree phenology, and is also a hot spot of rubber 
tree phenology research. However, research on para rubber phenology is not sufficient since the research in the phenology of 
para rubber tree is relatively new in China. This paper classified the phenology period of para rubber leaves, introduced the 
observation methods of the phenology, and summarized the study of rubber tree phenology related to fertilization, seedling 
raising, rubber tapping, physiology and biochemistry and stress resistance. The results showed that the root growth speed, 
the survival rate of budding grafting and the survival rate of root grafting of para rubber tree were related to the phenology of 
leaf. Rubber tapping was not available from defoliation to germination. the metabolic regulation and energy transformation of 
plants were vigorous in sprouting stage, and poor stress resistance were found in bronze period and pale green period. Finally, 
the research direction of phenology of para rubber tree was prospected.]]></description>
<pubDate>2020/1/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[李文秀，贺军军，张华林，罗　萍]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>李文秀，贺军军，张华林，罗　萍</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201911006&flag=1]]></guid><cfi:id>141</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Establishment of a Rapid Identification Method forResistance to Cucurbit Phytophthora Blight andIdentification of Cucumber Germplasms]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to facilitate the research of melon blight and screen the blight-resistant cucurbit 
varieties rapidly, a resistance-identification method for cucurbit phytophthora blight was established.【Method】The 
seedlings of cucumber disease-resistant materials and disease-infected materials were inoculated by four inoculation 
methods, such as root pouring, spore-spraying, root soaking and in vitro inoculation of mycelial pellet, and the most 
convenient and effective identification method was determined by comparing the incidence rate, onset time and operation 
procedures.【Result】All the four methods could be used to identify the resistance to cucumber phytophthora blight, but 
the identification effects were different significantly. Root pouring, spraying, and root soaking are applicable to solution with 
a concentration of 102 spores /mL. However, the operation of these methods was complex and the inoculation efficiency was low. As for in vitro inoculation of mycelial pellet, a piece of mycelial pellet with the diameter of 2 mm was directly inoculated 
on the back of excised cotyledons and put in a petri dish with wet filter paper. Then the phenotype was observed after being 
moisturized for 24h. And the resistance of cucumber materials was identified by calculating the size of the disease spot. By 
using this method, 40 pieces of cucumber materials with different resistance were identified. It was found that only 4 cucumber 
cultivars (PE40, PE119, PE120, PE185) were resistant to phytophthora blight, and 90% of them were susceptible or highly 
susceptible.【Conclusion】The results showed that the inoculation of excised cotyledon of mycelial pellet is a fast and effective 
method to identify cucurbit phytophthora blight. This method can identify hundreds of materials at one time without spores while 
preserving susceptible materials or intermediate materials, thus improving the identification efficiency and laying a foundation 
for resistance breeding to cucurbit phytophthora blight.]]></description>
<pubDate>2019/12/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[王　瑞，林毓娥，杜　虎，金庆敏，杨晓珊，吴廷全]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>王　瑞，林毓娥，杜　虎，金庆敏，杨晓珊，吴廷全</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910003&flag=1]]></guid><cfi:id>140</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Application of DRIS Method in Nutrition Diagnosisof Camellia nitidissima and Camellia japonica]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Based on the research results and the relationship between plant nutrition and fertilizer, 
balanced fertilization was carried out to improve productivity and fertilizer utilization rate of Camellia nitidissima and 
C. japonica, and provide theoretical basis for the cultivation and conservation of understory plants. 【Method】 By 
using C. nitidissima and C. japonica as experimental materials, the contents of nitrogen, phosphorus and potassium 
in C. nitidissima and C. japonica under different canopy closures were determined, and the DRIS method was used 
to analyze the nutritional index and nutrient status of C. nitidissima and C. japonica under Illicium verum forests of 
different canopy density. 【Result】 The contents of total nitrogen and total phosphorus in the leaves of C. nitidissima
showed an increasing-decreasing trend with the increase of canopy density, and they were the largest at a canopy density of 0.7. The total N, P and K contents in the leaves of C. japonica and total K content in the leaves of C. nitidissima
showed an increasing trend with the increase of canopy density, and they were the largest under the canopy density of 0.9. 
According to the Diagnosis and Recommendation Integrated System (DRIS), the order of fertilizer requirements of the two 
plants under various canopy density was different. The orders of fertilizer required for C. nitidissima in full illumination, canopy 
density of 0.5, canopy density of 0.7 and canopy density of 0.9 were showed as K ＞ P ＞ N, N ＞ P ＞ K, K ＞ N ＞ P and P
＞ N ＞ K. The order of fertilizer required for C. japonica in full illumination, canopy density of 0.5, canopy density of 0.7, and 
canopy density of 0.9 were showed as N ＞ P ＞ K, K ＞ P ＞ N, K ＞ N ＞ P, K ＞ N ＞ P, P ＞ K ＞ N. The NII (nutrition 
imbalance index) of C. nitidissima showed as: canopy density 0.9 ＞ CK ＞ canopy density 0.7 ＞ canopy density 0.5 and that 
of C. japonica showed as: CK ＞ canopy density 0.5 ＞ canopy density 0.9 ＞ canopy density 0.7. 【Conclusion】 According to 
the NII values of the two plants, it can be concluded that C. nitidissima and C. japonica have the optimal balance of nutrients 
at the canopy density of 0.5 and 0.7, respectively, which are suitable for the growth of C. nitidissima and C. japonica. However, 
there are some differences in soil nutrient status and fertilizer requirement between two plants under different canopy density. In 
production, reasonable fertilization should be carried out according to the actual canopy density.]]></description>
<pubDate>2019/12/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[韦献东 1
，卢晶晶 2，陈　鑫 1
，陶志华 1
，郝蕴祺 1
，王凌晖]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>韦献东 1
，卢晶晶 2，陈　鑫 1
，陶志华 1
，郝蕴祺 1
，王凌晖</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910004&flag=1]]></guid><cfi:id>139</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on the Introduction of New Variety of Phyllanthus emblica cv. Baiyuand Its Cultivation Techniques]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to meet the technical requirements of Phyllanthus emblica fruit production 
and improve the cultivation level of farmers in Guangdong Province.【Method】Taking a new variety of P. emblica Baiyu as the test 
subject, and it was introduced by high-grafting and its cultivation techniques were studied in Shanwei. 【Result】Baiyu was well 
adapted to grow in Shanwei, with an average single fruit weight of 10.36 g, soluble solid and titratable acid contents of 8.7% and 1.03%, 
and TSS-acid ratio of 8.45. The contents of total sugar, vitamin C and tannin were 58.5 mg/g, 2.77 mg/g and 1.18 mg/g, respectively, 
and the edible rate was 92.5%. The fruits could keep fresh on the tree and the fruit harvesting could be delayed without affecting the quality. With the key cultivation techniques, a three-year-old tree cultivated by high grafted-bud could achieve a yield of 35.2 kg per 
plant. The increasing application of bio-organic fertilizer and organic liquid fertilizer on leaf surface could significantly increase the single 
fruit weight, and the contents of vitamin C and total sugar, while decrease the tannin content. The ways of weeding with plastic mulching, 
controlling diseases and pest with insecticidal lamp, yellow sticky board and other physical measures, and applying biological pesticide 
scientifically could decrease the usage of chemical pesticide for 5~7 times in a year.【Conclusion】Using these techniques, the yields of P. 
emblica Baiyu were 546.0 kg (one-year-old tree), 909.0 kg (two-year-old tree) and 2 112.0 kg (three-year-old tree) per 667 m2, and such 
variety possesses large single fruit, high sugar and low acid, mild astringency and good commodity quality, which meeting the cultivation 
goal of early harvest and productive yield with green and high quality.]]></description>
<pubDate>2019/12/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[赖　多1
，邵雪花 1
，肖维强 1
，匡石滋 1
，林文胜 2，高国华 3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>赖　多1
，邵雪花 1
，肖维强 1
，匡石滋 1
，林文胜 2，高国华 3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910005&flag=1]]></guid><cfi:id>138</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Rain-shelter Cultivation on Yield, Quality andPostharvest Storability of Jinpingmang Mango]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Jinpingmang is a new mango variety bred jointly by Institute of Fruit Tree Research, Guangdong 
Academy of Agricultural Sciences and Institute of Fruit Tree Research of Chaozhou City from a single plant in a seedling population. 
In order to fully exploit the application and promotion potential of new varieties, the key techniques of rain shelter cultivation were 
studied in order to provide a theoretical basis for the rain shelter cultivation technology to be widely applied to mango production in 
rainy areas of southern China.【Method】Taking open field cultivation as control (CK), full rain shelter cultivation was conducted 
on Jinpingmang and the effects of two cultivation modes on the male and female flower rate, fruit setting rate, fruit yield and quality, 
fresh-keeping and storage resistance of this variety was determined and compared.【Result】Under rain shelter cultivation mode, 
the contents of total sugar, sucrose, soluble solids and vitamin C of the new variety Jinpingmang mango were higher than those of 
Zihuamang, while the contents of reducing sugar, total acid, titratable acid and crude fiber were lower than those of Zihuamang. 
The number of bisexual flowers, fruit quantity and fruit setting rate of Jinpingmang were significantly higher than those in open field 
cultivation, but under the open field cultivation conditions, they were lower than those of Zihuamang. The average yield per 667 m2
reached 608 kg in the second year after grafting, 788 kg in the third year and 1 280 kg in the fourth year. The Jinpingmang mango 
began to bear fruit two year after top grafting with a yield of 608 kg per 667 m2 and the yields were 788 kg and 1280 kg, respectively 
three and four years after top grafting. The average yield per 667 m2 increased by 348.27 kg and 72.67 kg, respectively, compared 
with that of open field cultivation and Zihuamang, and the income per 667 m2 increased by 5 224.05 yuan and 5 186.7 yuan, 
respectively, showing higher yield and economic benefits. The contents of total sugar, reducing sugar, sucrose, total acid, titratable 
acid, soluble solids, vitamin C and crude fibre of Jinpingmang fruit were 112 g/kg, 25.8 g/kg, 85.5 g/kg, 4.17 g/kg, 4.16 g/kg, 17.9%, 
23.4 g/kg and 0.2%, respectively. Total sugar, sucrose, soluble solids and vitamin C of Jinpingmang were higher than those in openfield cultivation, while reducing sugar and total acid were lower than those in open-field. The special double-layer fruit bags with 
red outer and black inner had the best effect. The fresh-keeping effect was best when 40% Baikede and 50% Wanlide were mixed 
with 1 000 times liquid.【Conclusion】Rain-shelter cultivation technology has certain application and promotion value in mango 
planting in rainy areas of southern China.]]></description>
<pubDate>2019/12/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[凡　超 1
，刘传滨 2，肖维强 1
，匡石滋 1
，向　旭 1
，林洁瑶 2，孙倍煜 2，曾继吾 1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>凡　超 1
，刘传滨 2，肖维强 1
，匡石滋 1
，向　旭 1
，林洁瑶 2，孙倍煜 2，曾继吾 1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910006&flag=1]]></guid><cfi:id>137</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Foliar Spraying with AlginatePhosphorus Fertilizer on the Yield and Qualityof Psidium guajava cv. Jindouxiang]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Psidium guajava cv. Jindouxiangis a new variety of guava bred by Institute of Fruit Tree 
Research, Guangdong Academy of Agricultural Sciences and other organizations. In order to provide a theoretical basis for 
improving the yield and quality of guava, the effects of foliar spraying with alginate phosphorus fertilizer on fruit quality 
and yield of guava were studied.【Method】With the guava variety Jindouxiang as the experimental material, the leaf was 
sprayed different concentrations of alginate phosphorus fertilizer, and water spraying was used as control. After spraying, 
the yield was measured and the fruit quality, transverse diameter, longitudinal diameter, soluble solid, titrable acid, Vc,total sugar and sucrose contents were determined.【Result】Alginate phosphorus fertilizer could obviously promote the growth 
of guava fruit and improve the yield and quality. At the concentration of 1 500 times of liquid fertilizer, the weight, transverse 
diameter and longitudinal diameter of single fruit were 126.35 g, 5.49 cm and 5.83 cm, respectively, which were 39.81%, 
14.85% and 14.99% higher than those of the control. Compared with the control, the yield increased by 35.75%. Meanwhile, 
the fruit quality was improved. The content of Vc, soluble solids, total sugar and sucrose were increased by 20.1%, 39.4%, 
64.3% and 72.7%, respectively, while the titratable acid content decreased by 14.2%.【Conclusion】Foliar spraying with 
alginate phosphorus fertilizer could increase the single fruit weight, transverse diameter and longitudinal diameter, and increase 
the content of Vc, soluble solids and sugar, while the the titratable acid content were decreased. The best concentration of this 
fertilizer used was 1 500 times solution.]]></description>
<pubDate>2019/12/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[匡石滋 1
，邵雪花 1
，赖　多1
，肖维强 1
，刘传和 1
，贺　涵 1
，曾　晶 2，胡　峰 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>匡石滋 1
，邵雪花 1
，赖　多1
，肖维强 1
，刘传和 1
，贺　涵 1
，曾　晶 2，胡　峰 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=201910007&flag=1]]></guid><cfi:id>136</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Phenotypic Diversity of Avocado Germplasms Based on Branches, Leaves and Flowers]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to identify the phenotypic diversity of avocado germplasms collected from western Guangdong, and improve the utilization of avocado germplasm resources.【Method】fifty-three avocado germplasm resources preserved in the National Field Genebank for Tropical Fruits were used as test materials. Partial correlation analysis, principal component analysis and cluster analysis were used to identify 7 quality traits （leaf shape, leaf margin, blade tip shape, leaf color, leaflet form, flower type, and petiole groove） and 12 quantitative traits （branch diameter, internode length, blade length, blade width, leaf index, petiole length, inflorescence cross length, inflorescence width, inflorescence rachis length, flower stem length, petal length, and sepal length）.【Result】Avocado was rich in phenotypic trait diversity, and the genetic diversity indexes of quality traits and quantitative traits ranged in 0.094-1.228 and 1.373.22-1.921, respectively, which indicated that the diversity of quantitative traits was richer than that of quality traits. Twenty-nine pairs were extremely significantly correlated and Twenty-nine pairs were significantly correlated among the 19 phenotypic traits. The results of principal component analysis showed that the cumulative contribution rate of the 6 principal component factors was 72.396%, and petiole length, branch diameter, petal length, inflorescence cross length, leaf margin and leaflet form were selected as the main traits. Cluster analysis showed that the 53 tested materials could be divided into 4 groups when the Euclidean distance was 15. The inflorescences of avocado germplasm resources in Group I were smaller, the branch diameters of avocado germplasm resources in Group II were the largest, the blade widths of avocado germplasm resources in Group III were the narrowest, and the inflorescence cross lengths of avocado germplasm resources in Group IV were llongest.【Conclusion】The phenotypic trait diversity of the 53 avocado germplasm resources collected and preserved in western Guangdong was rich, and there were some correlations among the 19 investigated phenotypic traits, among which the petiole length, branch diameter, petal length, inflorescence cross length, leaf margin and leaflet form could be used as the main traits for
the evaluation and breeding of avocado.]]></description>
<pubDate>2020/11/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHENG Bin1, SHI Xiaolong2, ZOU Minghong1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHENG Bin1, SHI Xiaolong2, ZOU Minghong1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009005&flag=1]]></guid><cfi:id>135</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Temperature on Flower Induction of Phalaenopsis amabilis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The experiment was to explore the appropriate temperature for the infarction of Phalaenopsis amabilis in order to provide basis for production management and provide references for varieties that have difficulty in flower induction as well as low temperature substitution.【Method】Taking the ‘fire phoenix’ P. amabilis bag seedlings as test materials, under the condition of artificial climate box, the single-factor randomized group was adopted as experiment design method. Five temperature treatments were set: 29/22℃, 26/19℃, 23/16℃, 20/13℃ and 17/10℃（day/night）. The temperature difference in each treatment was 7℃, the photoperiod was 10h/14h and the relative humidity was 75%.【Result】The P. amabilis had the earliest infarction time under the treatment at 26/19℃, and it started the infarction after being treated for 30 days, with the infarction rate of 100% and the infarction index of 14.86. The infarction started after treatment at 23/16℃ for 36 days, with the infarction rate of 100% and the infarction index of 2.41. The infarction started after treatment at 20/13℃ for 40 days, with the infarction rate of 95% and the infarction index of 1.13. The contents of soluble sugar, soluble protein and malondialdehyde increased significantly before infarction at 20-26℃, and decreased significantly after infarction. SOD activity increased before infarction.【Conclusion】The optimum temperature for the infarction of P. amabilis was 26/19℃. The inflorescence axis was not extracted at 29/22℃, indicating that P. amabilis could not induce flowering under high temperature conditions. The treatment at 17/10℃ caused low temperature damage. After a period of incubation, the pedicels could be extracted by being transfered to a higher temperature, but the quality of the pedicels was deviated.]]></description>
<pubDate>2020/11/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[TANG Yunfei, XU Xuhua, FENG Feng, LAI Siting, YANG Shiyin, OU Jianqing, LIAO Fei]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>TANG Yunfei, XU Xuhua, FENG Feng, LAI Siting, YANG Shiyin, OU Jianqing, LIAO Fei</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009006&flag=1]]></guid><cfi:id>134</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Investigation and Analysis on Species and Application of Vertical Greening Plants in Urban Parks of Nanning City]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to provide scientific references for the construction of vertical greening landscape in urban parks of Nanning City and other urban green spaces, the vertical greening plant resources in the city parks were investigated.【Method】By means of sample plot investigation, species, life form and other information of plants in 15 urban park vertical greening landscape sample plots of Nanning City were obtained. Combined with professional literature, a list of vertical greening plants in urban parks of Nanning City was compiled, and the characteristics of vertical green plant resources were analyzed.【Result】There are 306 species of vertical greening plants in urban parks of Nanning City, which belong to 95 families and 193 genera. There are five dominant families including Orchidaceae, Leguminosae, Liliaceae, Gramineae and Araceae. There are 35 species, 46 species, 90 species and 135 species of arbor, shrub, liana and herbaceous plants, respectively. The ratio of woody plants to herbaceous plants is about 1∶1.2. The ratio of evergreen woody plants to deciduous woody plants is about 4.75∶1. Flowering plants and color-leafed plants account for 57.19% and 12.75%, respectively. There are 90 species of epiphytes, accounting for 29.41%, and 143 species of native plants, accounting for 46.73%.【Conclusion】The vertical greening plant resources in urban parks of Nanning City is rich, and they are mainly evergreen plants. There are many species of lianas, and the epiphytic landscape is unique. The plant configuration is reasonable and coordinated with the appendages. In view of the problems existing in the application of vertical greening plants in parks, the following suggestions are put forward: vigorously applying native plants to highlight the regional characteristics of the city, enriching the species of coleus plants and increasing the change of landscape colors, and excavating the cultural connotation of plants to reflect the beauty of landscape artistic conception.]]></description>
<pubDate>2020/11/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Xi1,2 , NONG Wenlong 3, XIE Wanlu3, WEI Shengbo4, HE Taiping1,2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Xi1,2 , NONG Wenlong 3, XIE Wanlu3, WEI Shengbo4, HE Taiping1,2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009007&flag=1]]></guid><cfi:id>133</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Egeria naias Planch., a Newly Naturalized Aquatic Species in China]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to well understand the diversity of wetland plants so as to provide important data support for the conservation and utilization of plant resources in Guangdong.【Method】Field investigation and literature consulting helped us make the checklist of wetland plants in Guangdong.【Result】Egeria naias, a recently naturalized aquatic species in China, was recorded for the first time for local flora. Morphological and biological characteristics were described and photographed in detail for further taxonomic identification. The potential threat of E. naias to the local wetland ecosystem was also evaluated according to its ecological adaptability and propagation characteristics.【Conclusion】This new information may provide not only valuable data for the study of the flora in Guangdong but also the important references for prevention and control of the exotic plants in Guangdong.]]></description>
<pubDate>2020/11/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SU Fan, GUO Yanan, WANG Ruijiang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SU Fan, GUO Yanan, WANG Ruijiang</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202009008&flag=1]]></guid><cfi:id>132</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Optimization of Microspore Regeneration System in ggplant]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The technology of microspores callus induction, growth and differentiation of eggplant （Solanum melongena） were studied to provide technical support for the establishment and application of the microspore regeneration system of eggplant.【Method】With the free microspores of diploid eggplant as materials, the effects of induction conditions,culture methods and culture medium types on the callus induction, growth and differentiation of eggplant microspores were explored, and the microspore culture system of eggplant was established.【Result】Under the dark static culture conditions, and replacing with some fresh culture medium for 2-3 times were beneficial to callus induction and growth. Upon the 
differentiation culture of callus, the survival rate of callus was related to its size when the callus was directly transferred to solid medium. When the callus was more than 2 mm, the survival rate could reach 82.67%. The requirement of solid-liquid culture on callus size was not strict, adding 1-2 mL N3 liquid medium was conducive to the growth and survival of callus, while the survival rate of differentiation culture of callus would be reduced when the liquid medium was over 2 mL. The highest greening rate of callus（maturity）was 94.64% in MS solid medium with 36 g/L mannitol. The hormone combination of ZT 1.5 mg/L and NAA 0.05 mg/L was beneficial to bud differentiation, and the differentiation rate was 57.78%.【Conclusion】Under the dark still culture, changing part of medium regularly was beneficial to callus induction and growth. When 1-2 mL N3 liquid medium was added into solid medium, the survival rate of callus was the highest and the growth rate was fast. The hormone combination of ZT 1.5 mg/L + NAA 0.05 mg/L with 36 g/L mannitol on the solid medium was conducive to callus differentiation.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHU Chaohui, ZHAO Ruili, ZENG Xiaoling, CHEN Jibing, XU Tongwei]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHU Chaohui, ZHAO Ruili, ZENG Xiaoling, CHEN Jibing, XU Tongwei</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008003&flag=1]]></guid><cfi:id>131</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Photosynthetic Characteristics and Carbohydrate Content of Feizixiao Litchi Leaves in Different Phenological Periods]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to understand the changing trend of photosynthetic characteristics and carbohydrate contents of Feizixiao litchi leaves in different phenological periods with a view to provide a theoretical basis for the high-yield cultivation management of Feizixiao litchi.【Method】The phenological period of Feizixiao litchi was observed for three consecutive years. The changes in photosynthetic characteristics and carbohydrate content of litchi leaves in different phenological periods were studied. CIRAS-3 portable plant photosynthesis analyzer was used to determine leaf photosynthesis parameters. Soluble sugar was measured by anthrone-sulfuric acid method and starch was measured by iodometric method.【Result】The net photosynthetic rate of the leaves of Feizixiao litchi showed a wave-like change, with the 
highest value of 13.04 μmol/m2·s after the shoots were fully mature and the lowest value of 4.73 μmol/m2·s during the fruit coloring stage. The chlorophyll content showed an overall upward trend during the growth period, and its maximum value was 5.2 mg/g. The soluble sugar content showed a wave-like change, with a relatively high level at the flower bud differentiation stage. The soluble sugar content reached the highest value of 42 mg/g after the physiological fruit-drop period, and the lowest value of 16 mg/g appeared at the fruit maturation period. The starch content showed an upward trend during the flower bud differentiation period, the highest value of 237 mg/g appeared at the white millet period while the content fell to the lowest value of 102 mg/g at the physiological fruit-drop period, and then gradually recovered.【Conclusion】During the whole process from flower bud differentiation to fruit maturity, there were two peaks in the net photosynthetic rate of leaves, which appeared in the flower bud differentiation and fruit development periods. There were large accumulations of soluble sugar contents in the fruit development period and fruit coloring period, and large accumulations of starch contents in the flower bud differentiation period and fruit 
coloring period, which provided adequate nutrition for the subsequent growth and development. During the whole process, the leaves showed no obvious chlorosis.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHOU Ruiyun, HU Fuchu, WANG Xianghe, ZHOU Wenjing, WU Fengzhi, CHEN Zhe]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHOU Ruiyun, HU Fuchu, WANG Xianghe, ZHOU Wenjing, WU Fengzhi, CHEN Zhe</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008004&flag=1]]></guid><cfi:id>130</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Alternate Year Bearing Technology on Yield and Quality of Shatangju Mandarin and Its Economic Benefits Analysis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The effects of alternate year bearing technology on growth and fruiting of Shatangju mandarin （Citrus reticulate Blanco） were studied in order to provide technical references for labor saving cultivation.【Method】The experiment was carried out in 6-year-old Shatangju mandarin trees grafted on trifoliate orange. Through the application of alternate year bearing technology, the effects on plant growth and yield of Shatangju mandarin were investigated, and the fruit quality and economic benefits were analyzed.【Result】With the application of alternate year bearing technology, the average yield per plant of Shatangju mandarin in fruit-bearing years of 2016 and 2018 were 43.3 kg and 57.4 kg, respectively, which were significantly higher than those of conventional cultivation （CK）. The contents of soluble solids, total sugar and total acid were 13.2%, 12.26% and 0.51%, respectively, all of which were higher than those of CK. Due to the application of alternate year bearing technology, the conmodity rate of fruit was significantly increased, and the cost and labor intensity was significantly decreased. Compared with the conventional cultivation method, the costs of planting with the alternate year bearing technology decreased by 10.80%. The yield per unit area and output value with the alternate year bearing technology were lower than those of the CK. No significant difference was found in the net profit. The alternate year bearing technology had no obvious effect on the increase of the yield or benefit of Shatangju mandarin in Guangdong.【Conclusion】Some helpful revelations were obtained through the experiment. The intermediate cutting and open skylight pruning are suitable for the closed orchard and reasonable sparse planting is recommended for new orchard. After the treatment, the canopy of Shatangju mandarin has been dwarfed and the effect of ventilation and photopermeability has been improved, which can improve the yield, fruit quality and commodity rate significantly. Therefore, the production costs are reduced, and the economic benefits of the orchard are increased.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WU Wen, ZHANG Ruimin, ZHU Congyi, ZENG Jiwu, MA Peiqia, HUANG Yongjing]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WU Wen, ZHANG Ruimin, ZHU Congyi, ZENG Jiwu, MA Peiqia, HUANG Yongjing</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008005&flag=1]]></guid><cfi:id>129</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation on Cold and Drought Resistance of 27 Woody Flower Species]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conduct to explore the physiological responses of different woody flower species under different drought and cold conditions, and a comprehensive assessment on the cold resistance and drought resistance of these species was performed in order to provide a reliable basis for the introduction and promotion of various species.【Method】The potted plants of 27 species belonging to 14 families were used as test materials. Large-scale lowtemperature artificial climate chambers were used for stage cooling and cold simulation. Polyethylene glycol 6000 solution was used to simulate different arid environments. The electrical conductivity and relative water content of plant leaves treated at different time points were measured, and the k-means clustering method was used to evaluate the cold and drought resistance of various species. Based on the measured physiological index data, TOPSIS method was used to comprehensively evaluate and rank the ability of cold and drought resistance.【Result】The results of cold resistance test showed that 15 species such as Camellia azalea and Brachychiton acerifolius had relatively strong cold resistance, the U value of the comprehensive evaluation of cold resistance was below 2.73. Species such as Handroanthus chrysanthus and Bombax malabaricum has relatively weak cold resistance. The results of drought resistance tests showed that 10 species such as Cassia siamea and Camellia azalea were more resistant to drought, the U value of comprehensive evaluation of drought resistance was below 2.30, while 17 species such as Cassia fi stula and Lysidice rhodostegia had weaker drought resistance.【Conclusion】There are significant differences in cold and drought resistance among 27 species, of which Camellia and Hematoxylin have better comprehensive resistance. The results provide a robust reference for the cultivation and promotion of various woody flower species.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Fang, ZHANG Weihua, PAN Wen, YANG Huixiao, YANG Xiaohui, LIAO Huanqin, XU Bin, ZHU Baozhu, WANG Yuxia]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Fang, ZHANG Weihua, PAN Wen, YANG Huixiao, YANG Xiaohui, LIAO Huanqin, XU Bin, ZHU Baozhu, WANG Yuxia</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008006&flag=1]]></guid><cfi:id>128</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Physiological Effects of Leaf-air Vapor Pressure Deficit and Stomatal Conductance on Transpiration Rate of Populus euphratica in the Middle and Lower Reaches of Tarim River]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The transpiration rate mechanism of Populus euphratica during the fast growing period and the physiological regulation to adapt to arid climate environment were studied so as to provide experimental basis for the artificial regeneration of P. euphratica forest in the middle and lower reaches of the Tarim River.【Method】The portable photosynthesis instrument was used to measure the natural P. euphratica along the Tarim River in the extreme arid area in June to August of 2018. The measured data was used to study the correlation between transpiration rate （Tr） of P. euphratica and leaf-air vapor pressure deficit （VPDL） and stomatal conductance （Gs）.【Result】The diurnal variation of Tr and Gs of P. euphratica showed a single-peak curve during the observation period, and the peak occurrence time was different. In July, the trend of Tr and Gs showed a bimodal curve, and VPDL had a single-peak curve with a peak time at 16:00 The peak times of Tr and VPDL showed different degrees of hysteresis compared with the peak of Gs, with strong hysteresis. The occurrence of the bimodal curve was mainly affected by the non-stomatal limiting factors, which caused Tr and Gs to reach the first peak. After that, Tr and Gs decreased first and then rose and finally fell. All of Tr, VPDL and Gs of P. euphratica exhibited a quadratic curve model, indicating that leaf-air vapor pressure deficit and stomatal conductance were both important factors regulating the transpiration rate. During the observation period, P. euphratica was alternately affected by stomatal limitation and non-stomatal limitation. The period of each month affected by the stomatal and non-stomatal limitation was different, therefore, there were different physiological and ecological reflections on plants.【Conclusion】The response sensitivity of P. euphratica Tr to VPDL is higher than that of Gs in the middle and lower reaches of the Tarim River. Non-stomatal restriction is also an important mechanism to maintain water balance.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LIN Bing1, WU Shengli1, GUAN Wenke2, SONG Chuan1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LIN Bing1, WU Shengli1, GUAN Wenke2, SONG Chuan1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008007&flag=1]]></guid><cfi:id>127</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Primary Study on Provenance Test of Three Variants of Caribbean Pine]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】This research aims to make up for the shortcomings of the current narrow genetic range of Caribbean pine, broaden its genetic basis, and facilitate the development of its hybrid breeding for germplasm innovation.【Method】With a randomized complete block design, 22 provenances or batches of 3 Caribbean pine variants and slash pine germplasm were planted in Hongling Seed Orchard, Taishan City, Guangdong Province. Growth surveys were carried out after planting for 1 year and 4 years. The obtained data was used for variance analysis, multiple comparisons, genetic parameter estimation, correlation analysis and etc. 【Result】The growth differences between different tree species （variants） and provenances were extremely significant. At the age of 4 years old, the preservation rate of Cuban Caribbean pine was the lowest （44.76%）, and that of slash pine was the highest （74.95%）. The genetic parameters of the Honduran Caribbean pine with the largest number of provenances were estimated, and the results showed that the general heritability of the tree height, DBH, and volume per plant of Honduran Caribbean pine was between 0.8044 and 0.9822, indicating that the provenance selection of Honduran Caribbean pine was relatively reliable. Compared with the Taishan provenance （CK）, the Brazilian provenance of the Bahamas Caribbean pine had the best growth performance, with a single plant volume gain of 72.73%, followed by the Australian provenance of Honduran Caribbean pine, with a single plant volume gain of 65.85%. The single plant volume gains of the 3 provenances of Cuban Caribbean pine were all negative, indicating that Cuban Caribbean pine variety was not suitable for planting in Taishan.【Conclusion】Due to the narrow genetic basis of domestic Caribbean pine resources, the production of their offspring began to decline in growth. The Bahamian Caribbean pine and Honduran Caribbean pine resources introduced in this study were rich in variation. Some provenances had excellent growth performance in Taishan, which could broaden the genetic basis to a certain extent, and provide valuable materials for the creation of new germplasm of slash pine and Caribbean pine hybrid.]]></description>
<pubDate>2020/9/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DENG Leping1, HUANG Ting1, ZHAO Fencheng2, GUO Wenbing2, HUANG Jufeng1, TAN Zhiqiang1, WU Huishan2, WANG Zhe2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DENG Leping1, HUANG Ting1, ZHAO Fencheng2, GUO Wenbing2, HUANG Jufeng1, TAN Zhiqiang1, WU Huishan2, WANG Zhe2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202008008&flag=1]]></guid><cfi:id>126</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Screening of Mini Watermelon Under Soilless Culture in Greenhouse in Hainan]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The aim of this study was to screen out crack resistant and high-quality miniwatermelons under soilless cultivation in Lingshui of Hainan, which could meet people's demand for high-quality watermelons and promote the development of Hainan facility watermelon industry.【Method】In the greenhouses of Lingshui, all watermelons were planted by three-dimensional creeper cultivation method with pure coconut dust as cultivation matrix and nutrient liquid drip irrigation. With Meiyue as the control variety, the yield, fruit characters and quality characters of 21 watermelon varieties were compared and analyzed.【Result】Among all the watermelon varieties tested, the single fruit weight varied from 1.35 to 2.05 kg, and the yield varied from 1 799.4 to 2 727.3 kg per 667 m2, among which L600 had the highest single fruit weight and yield. The soluble solid content in the center varied from 9.9% to 12.9%, and that of Qiongxiang was the highest. The soluble sugar of watermelon was mainly fructose, followed by glucose, and the soluble sugar content was 54.94- 87.65 mg/g, among which Reyanmoyu was the highest. The sugar-acid ratio ranged from 20.22 to 53.41, among which Wanfulai was the highest. The range of rind hardness was 32.56-69.41 kg/cm2, and the rind hardness of the 10 varieties（Jinxiuqiancheng, Yanling, Jinxiangyu, Meirong, Qiongmei, Quanmei 2K, Quanmei 4K, 4126, 3416, L600）was significantly higher than that of Meiyue. Based on the average membership function values, the L600 ranked first, followed by the Jinxiuqiancheng.【Conclusion】Based on the comprehensive evaluation on indicators of yield, quality and pericarp characteristics, L600 and Jinxiuqiancheng with good quality and crack resistant were selected as watermelon varieties suitable for soilless cultivation in greenhouses in Lingshui of Hainan province.]]></description>
<pubDate>2020/9/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HE Shengtuan1, SU Jichun1, LIN Chunmei1, ZHAN Yuanfeng2, DANG Xuanmin2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HE Shengtuan1, SU Jichun1, LIN Chunmei1, ZHAN Yuanfeng2, DANG Xuanmin2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007007&flag=1]]></guid><cfi:id>125</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Plant Growth Regulators on Storage and Hydroponic Flowering of Curcuma kwangsiensis var. nanlingensis Rhizome]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】A comparison of the effects of different plant growth regulators on the storage and hydroponic flowering of Curcuma kwangsiensis var. nanlingensis rhizome was conducted.【Method】The rhizome of C. kwangsiensis var. nanlingensis was soaked in different concentrations of TDZ, 6-BA, GA3 and IAA solutions for 2 h, and stored at 13℃ for 5 months. The physiological indexes were measured and the effects of different treatments on long-term storage of rhizome were compared. In addition, the rhizome of C. kwangsiensis var. nanlingensis was stored at 13℃ for 30 days and then taken out. Germination accelerating was conducted at 30℃ for at least 30 days.When the buds grew to 2 cm, different concentrations of 6-BA and GA3 solutions were used for culturing and the early flowering time and other indexes of rhizome were observed. The effects of two plant growth regulators on the hydroponic flowering of rhizome of C. kwangsiensis var. nanlingensis were compared.【Result】During the storage, moisture and protein content of rhizome decreased continuously, accompanied by a constant increase in conductivity. Different concentrations of TDZ and IAA could reduce the decrease of rhizome moisture content, while 10 mg/L IAA treatment retarded the reduction of protein content of rhizome most significantly. On the 150th day of rhizome storage, the conductivity of 10 mg/L IAA treatment group was 74 % of the control group, indicating that the longterm storage effect of rhizome of C. kwangsiensis var. nanlingensis soaked with 10 mg/L IAA was the best. Both 6-BA and GA3 could improve the flowering quality of C. kwangsiensis var. nanlingensis. Compared with the control group, 6-BA treatment could advance the flowering time. Low concentration of GA3 treatment had a significant effect on flower branch length elongation while high concentration of GA3 treatment not only delayed flowering time but also reduced flower branch length and flower branch diameter.【Conclusion】Plant growth regulator could protect the long-term storage of rhizome of C. kwangsiensis var. nanlingensis and improve the flowering quality during hydroponics. The protective effect of 10 mg/L IAA soaking on long-term storage was the best, and 5 mg/L 6-BA aqueous solution had the best effect on early flowering and growth of flower branches.]]></description>
<pubDate>2020/9/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FENG Xin1, SHEN Lili1,2, SHENG Aiwu1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FENG Xin1, SHEN Lili1,2, SHENG Aiwu1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007008&flag=1]]></guid><cfi:id>124</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification of Differentially Expressed Proteins in Abortive Seeds of Lumnitzera littorea Based on iTRAQ]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007009&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to explore the molecular mechanism of the abortive seeds of endangered mangrove Lumnitzera littorea.【Method】The expression difference in proteome of different fertility seeds of L. littorea was analyzed by iTRAQ quantitative proteomics technology. Enzymolysis was conducted for two qualified proteomes, which were labelled by iTRAQ and then detected by HPLC and MS. Protein identification was carried out by using Mascot software. Differentially expressed proteins were found by iTRAQ. Then, GO function annotation, KEGG metabolic pathway and protein interaction analysis were performed. Furthermore, eight candidate genes were validated by quantitative realtime PCR.【Results】In the two proteomes, 2 380 proteins were identified, and 448 proteins were differentially expressed in the abortive seeds of L. littorea. Among the differentially expressed proteins, 238 of them were up-regulated proteins and 210 were down-regulated ones. 1.86% of the differentially expressed proteins were closely related to the biological processes of reproduction. GO analysis indicated that most of the up-regulated proteins in the abortive seeds were mainly involved into endoplasmic reticulum protein processing, RNA transport, RNA degradation, SNARE interactions in vesicular transport and mRNA regulation. The UGGT proteins, HSP proteins and the vesicle-associated membrane proteins probably play important regulation roles in the development of abortive seeds. These results reflect the possible biochemical and physiological processes of germination of the abortion L. littorea seeds.【Conclusion】Some transcription factors involved in seed germination and plant 
growth expressed differently, which may be the direct or indirect reasons for seed abortion. The study results provided scientific support for the research on the mechanism of endangered L. littorea and the conservation of such germplasm resources.]]></description>
<pubDate>2020/9/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Weijin1, ZHANG Jingwen2, YUAN Changchun1, ZHANG Ying1,2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Weijin1, ZHANG Jingwen2, YUAN Changchun1, ZHANG Ying1,2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202007009&flag=1]]></guid><cfi:id>123</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Facility Standard Cultivation of Shine Muscat Grape in Shenzhen]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202006004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to have a good understanding of the biological characteristics of 
Shine Muscat grape for carrying out standardized cultivation in Shenzhen.【Method】Since 2014, Shine Muscat grape has 
introduced in Guangming District, Bao'an District and Longgang District of Shenzhen. Seven years of field observation and 
production area trials were conducted by Shenzhen Shennong Fruit Farming Co., Ltd. and Shenzhen Pengcheng Nongfu 
Ecological Agriculture Co., Ltd., and the introduction date and planting techniques in some domestic areas of the country 
were reviewed.【Result】Under facility conditions, high ridge root restriction cultivation and drought stress were used to 
solve the problem that grapes were not normally dormant in Shenzhen, and 20 times 50% cyanamide was used to break the 
dormancy and promote the normal germination of grapes. In order to ensure the normal growth of grapes and the fruit quality, 
the cultivation facility construction, soil improvement, sapling management, fruiting tree management, inflorescence and 
fruit cluster management, pest control and fertigation management were discussed, and a set of facility standard cultivation 
techniques suitable for Shine Muscat grape in Shenzhen were summarized.【Conclusion】In Shenzhen, high-quality fruits 
of Shine Muscat grape can be produced.]]></description>
<pubDate>2020/8/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[RUAN Zhaoying1, QI Baifu1, TIAN Jing2, CHE Xutao2, HUANG Shaozhen1, YANG Zeliu1, YUAN Wenjing1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>RUAN Zhaoying1, QI Baifu1, TIAN Jing2, CHE Xutao2, HUANG Shaozhen1, YANG Zeliu1, YUAN Wenjing1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202006004&flag=1]]></guid><cfi:id>122</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research on the Damage Grade and Wind Resistance of Urban Common Garden Trees in South China]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202006005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to explore the damage caused by wind disasters and the wind resistance 
of trees in urban green space and gardens.【Methods】Based on the investigation on the wind damage situation and 
measurement of relevant data of the urban green garden trees in Shenzhen after the typhoon Mangkhut in 2018, a wind 
resistance grade elevation standard of garden trees was proposed in combination with historical data, and wind resistance 
of 50 common garden trees was analyzed and evaluated with comprehensive evaluation method.【Result】According to 
the wind damage degree of garden trees and the expected recovery status, the damage status of wind disaster is divided 
into 5 levels, and the wind resistance performance of tree species is divided into 5 levels accordingly.The tree species with excellent branch breaking resistance are mostly the species of palm family, native offshore areas and suitable for coastal 
greening.Generally, the tree species of inland calm regions has weak wind resistance. The flex-resistant dried tree species 
are generally tough, with a straight stem and a small wind-sensitive crown. The lodging-resistant tree species are usually 
root system specialized or deep-rooted, with some types of crown-shaped permeability, low wind resistance or high branch 
flexibility.【Conclusion】The main morphological factors affecting the wind resistance of trees include trunk shape and wood 
material, anti-bending strength, crown layer density, crown-height ratio, root system, deflection amount, maximum static load. 
Among the 50 common garden tree species, palms, native tree those and species with developed root systems, tough materials 
and transparent canopies have strong wind resistance.]]></description>
<pubDate>2020/8/10 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DONG Yi1, HUANG Yijun2, HE Guoqiang3, LIU Yongjin4, TAN Guangwen3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DONG Yi1, HUANG Yijun2, HE Guoqiang3, LIU Yongjin4, TAN Guangwen3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202006005&flag=1]]></guid><cfi:id>121</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation Analysis on Nutritional Quality and External Sensory Quality of Chinese Flowering Cabbage Varieties]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The quality of 17 Chinese flowering cabbage varieties were evaluated and classified, to provide basic materials and information for late processing and new variety breeding.【Methods】Internal nutritional qualities and external sensory trait such as vitamin C, fructose, glucose, total soluble solids, dry matter and hardness were determined by HPLC etc. and analyzed by Principal Component Analysis（PCA）among 17 Chinese flowering cabbage varieties The main effect components of quality of Chinese flowering cabbages were preliminarily determined and their qualities were comprehensively evaluated.【Result】The results of PCA showed that the eigenvalues of the first two principal components were large, with the cumulative variance contribution rate of 81.59%, which were sweetness factor（soluble sugar and soluble solids contents）and texture factor, respectively. The results of principal component analysis and cluster analysis were basically the same. Among all varieties, the sweetness of Chinese cabbage peduncle, Lianzhou late pointy leaf flowering cabbage, late pointy leaf flowering cabbage 1 and late pointy leaf flowering cabbage 4 was higher（27.23, 135.38, 143.87 and 127.22 mg/g, DW）, and the texture of late pointy leaf flowering cabbage 1 and late pointy leaf flowering cabbage 4 was tender, and the content of Vc in Lianzhou late pointy leaf flowering cabbage was higher（10.30 mg/g, DW）.【Conclusion】Based on principal component analysis and cluster analysis, it can be identified that there are significant differences in the sweetness of 17 Chinese flowering cabbage varieties. Processing and variety breeding can be carried out according to different quality traits of Chinese flowering cabbages.]]></description>
<pubDate>2020/7/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[CHEN Rongyu1, ZHONG Yujuan2, XIE Dasen2, ZHANG Yan2, CHEN Hancai2, XUE Shudan2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>CHEN Rongyu1, ZHONG Yujuan2, XIE Dasen2, ZHANG Yan2, CHEN Hancai2, XUE Shudan2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005003&flag=1]]></guid><cfi:id>120</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Diversity of Quality Traits of Chinese Flowering Cabbage Varieties with Different Maturity]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The objective of this study was to evaluate quality traits and select specific germplasm resources of Chinese flowering cabbage, which provided theoretical references for the development and utilization of Chinese flowering cabbage with high quality.【Method】120 Chinese flowering cabbage accessions with different maturities were collected. The genetic diversity analysis was conducted for 8 appearance qualities and 2 nutritional qualities, and all Chinese flowering cabbage accessions were evaluated by principal component analysis and cluster analysis.【Result】The results showed that the variation coefficients of 10 quality traits of Chinese flowering cabbage resources ranged from 11.17% to 42.76%. The variation coefficient of maximum petiole length was the largest and that of chlorophyll content was the smallest. Except for chlorophyll content, leaf shape and nitrate content, the plant expansion, the maximum leaf length, leaf width and petiole length, stalk height, stalk diameter, and soluble protein content of flowering cabbage of early maturity were significantly lower than those of late maturity. The nitrate content of Chinese flowering cabbage of mid-maturity was the lowest and the other appearance quality traits also fulfilled the requirements for commodity characters of high quality Chinese flowering cabbage. The results of principal component analysis showed that 10 quality traits could be transformed to 3 main component factors, with the total contribution rate of 80.813%, indicating that these 5 traits including the maximum leaf length, leaf width and petiole length, leaf type and leaf color could represent most of the quality trait information of Chinese flowering cabbage. According to cluster analysis, 120 Chinese flowering cabbage accessions were divided into 2 groups and six subgroups, among which the sub-group II-II had excellent comprehensive quality traits and could be used directly or selected as good parental materials.【Conclusion】There are obvious differences in quality traits of the collected Chinese flowering cabbage accessions which have. rich genetic variations. Some germplasm resources with high quality can be used for breeding and production as well as utilization.]]></description>
<pubDate>2020/7/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LU Yupeng1, XIA Yanshi1, WEN Shaobo1, LI Ronghua1, LI Guangguang2, ZHANG Hua2, GUO Peiguo1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LU Yupeng1, XIA Yanshi1, WEN Shaobo1, LI Ronghua1, LI Guangguang2, ZHANG Hua2, GUO Peiguo1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005004&flag=1]]></guid><cfi:id>119</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Optimization of High Frequency Embryo Induction Medium for Isolated Microspore Culture of Chinese Flowering Cabbage]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The high frequency embryo induction medium for free microspore culture of Chinese flowering cabbage were optimized in order to improve embryo induction rate and create excellent DH lines for breeding practice.【Method】The NLN induction medium with different concentrations of sucrose and hormone（6-BA and NAA）were set, and 10 Chinese flowering cabbages with different genotypes were used as the experiment materials to conduct microspore culture and induction rate analysis for screening out the optimal induction medium.【Result】The results showed that a total of 7 genotypes produced microspore embryos, and significant differences in embryo induction rate were observed among different genotypes, indicating that genotype was the main factor affecting the formation of microspore. Sucrose concentration in the NLN induction medium had a great influence on the embryo production rate. In the hormone-free group, NLN（NLN-10）with 100 g/L sucrose had the highest microspore induction rate and the embryo production rates of the 7 genotypes were 3.45 - 30.46 embryos/dish. In the 1/2 NLN-10 culture medium treatment group, the embryo production rate was about 2/3 of that in the NLN-10 treatment group. In the NLN-13 treatment group, the embryo production rate was significantly reduced, with the highest rate of 14 embryos/dish. When the sucrose concentration reached 160 g/L（NLN-16）, the embryo production was inhibited. When adding 0.1 mg/L 6-BA and NAA to the NLN-10 medium respectively, the optimal embryogenesis could be obtained, with the highest embryo production rate of 46.93 embryos/dish created by “Rt19006”, which was 1.5 times higher than that of hormone-free group. When the concentration of 6-BA and NAA in NLN-10 reached 0.2 mg/L, the growth and development of embryos were inhibited.【Conclusion】An induction medium formula that can effectively promote the embryo production of microspore in Chinese flowering cabbage is screened out, that is: NLN culture medium containing 100 g/L sucrose and 0.1 mg/L 6-BA and NAA.]]></description>
<pubDate>2020/7/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Yi1, CHEN Hancai1, SHEN Zhuo1, ZHOU Xuan1, LI Tingyao1, DU Zhiwei2, YANG Lixuan2, ZAHNG Yan1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Yi1, CHEN Hancai1, SHEN Zhuo1, ZHOU Xuan1, LI Tingyao1, DU Zhiwei2, YANG Lixuan2, ZAHNG Yan1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005005&flag=1]]></guid><cfi:id>118</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comprehensive Evaluation of Gymnosperms Applied in Kunming Gardens]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to investigate the gymnosperm planting resources and their application status in green space of Kunming gardens, and to provide references and theoretical basis for the application of gymnosperms in garden planning and configuration of Kunming in the future.【Method】A field survey was conducted on the gymnosperm species in green space of 45 gardens in Kunming, and 70 investigated gymnosperms were used as research objects, then 12 comprehensive evaluation indexes of gymnosperms were put forward from three aspects of ornamental value, landscape application potential and ecological adaptability. The AHP evaluation model was established to evaluate the comprehensive value of landscape application of gymnosperm resources in Kunming, and a hierarchy was made according to the comprehensive evaluation score.【Results】The order of weight value was showed as: ornamental value（0.6833）＞ecological adaptability（0.1998）＞ landscape application potential（0.1168）. According to the comprehensive evaluation results, 7 species of gymnosperms of grade Ⅰ（≥ 4）, 23 species of grade Ⅱ（3.5-4.0）, 30 species of grade Ⅲ（3.0-3.5）, and 10 species of grade Ⅳ（＜ 3） were obtained.With reference to the results of comprehensive evaluation of AHP and evaluation of all levels, it is recommended that grade Ⅰ resources be used as keynote trees and main landscape trees in forest belts; grade Ⅱ resources be properly developed; and grade Ⅲ resources be selected for valuable development and utilization; while grade Ⅳ resource tree species are not recommended for development and utilization. 【Conclusion】The research results can provide a scientific reference for the selection and application of garden trees in Kunming, and the research methods can also provide a reference for the screening of plants in other specific habitats.]]></description>
<pubDate>2020/7/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[TAN Qi，WANG Li]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>TAN Qi，WANG Li</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202005006&flag=1]]></guid><cfi:id>117</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Wheat Straw Cutting and High Quantity Returning to the Field on the Yield of Water Spinach and Soil Fertility in Summer and Autumn in Greenhouse]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to explore the decomposition effects of high quantity of cut wheat straws returned to the field.【Method】By using the principle of high temperature, high humidity and aerobic fermentation environment to promote the decomposition of straws in the protected aquatic vegetable field, this experiment covered 10 cm short specification wheat straws in high quantity with 37.50 t/hm2 and 22.50 t/hm2, and cultivated water spinach（Ipomoea aquatica Forsk）. The electrical conductivity and redox potential of soil surface water layer, the decomposition rate of wheat straws, the yield of water spinach, the quality of water spinach plant and the related indexes of soil properties were measured.【Result】The conductivity of the treated soil surface water layer increased rapidly in the early stage, and the maximum values of 37.50 t/hm2 treatment and 22.50 t/hm2 treatment were 1 653 μs/cm and 2 220 μs/cm on the 5th and 2nd day, respectively. The redox potential of the soil surface water layer decreased rapidly in the early stage, with the minimum values of -198 mV and -212 mV on the 3rd and 8th day, respectively. After 182 days, the decomposition rates of 37.50 t/hm2 treatment and 22.50 t/hm2 treatment were 63.91% and 91.00%, respectively. The yield of 22.50 t/hm2 straw mulching treatment increased 5.00% compared with that of the control, and such treatment reduced the application of chemical fertilizer by 14.30%, achieving the effects of reducing chemical fertilizer and increasing production. Under 37.50 t/hm2 treatment, the decrease of soil nitrate nitrogen was the maximum, reaching 43.69%. Both treatments could significantly supplement P and K elements in soil, and effectively improve the properties of soil.【Conclusion】High quantity of wheat straws returned to the field can not only improve crop yield and reduce the application of chemical fertilizer, but also supplement the P and K elements in soil and effectively alleviate the soil salinization.]]></description>
<pubDate>2020/6/16 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[QIAN Jiayu, JIANG Jiezeng, ZHANG Yongxian, ZHANG Hao, LI Dongsheng, LIU Hui]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>QIAN Jiayu, JIANG Jiezeng, ZHANG Yongxian, ZHANG Hao, LI Dongsheng, LIU Hui</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004005&flag=1]]></guid><cfi:id>116</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Hybridization and Breeding of Superior Individuals of Phalaenopsis with Fragrance and Multiple Flowers]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The germplasm resources of Phalaenopsis were collected to carry out the hybrid breeding of Phalaenopsis with fragrance and multiple flowers, to observe the performance of main target traits in progeny population, and to obtain superior individuals that meet the target traits.【Method】Conventional hybridization of Phalaenopsis was carried out with 15 Phalaenopsis species as parents, the traits of hybrid progeny were investigated and analyzed, and the relative traits were compared with those of parents.【Result】Among the 15 hybrid combinations, two combinations No. 16161（PL608×PL321）and No.16162（390×PL321）were successful in achieving mature capsules in 2016, while none of the other 13 combinations achieved either a capsule or a mature capsule. The 16161 with closest traits to parents cultivated 200 hybrid progeny populations, and promoted the flowering of 174 hybrid progeny in plain areas with air conditioning. This hybrid combination had a large number of offspring, with many flowering plants, neat plant and leaf types, strong growth potential, and inherited the fragrance of the female parent completely. The number of flowers inherited the characteristics of the female parent, which is close to the female parent, and more than that of the male parent; The colors of the flowers and the lips are the harmonious colors of the parents’, and there were gradient changes in shade and light colors. The pattern of spot distribution was the same as that of the female parent, and the flower color other than that of the parents did not appear, which was in accordance with the basic genetic law. The growth and development indexes of some hybrid progeny were better than those of parents. Six superior individuals with fragrance, multiple flowers, bright colors and good shape of flowering plants were selected and bred. The 16162 cultivated 21 hybrid progeny populations, and promoted the flowering of 12 hybrid progeny in plain areas with air conditioning. The fragrance of parents was inherited by the hybrid offspring, the number of flowers was inherited from the father and no superior individual with fragrance and multiple flowers was selected.【Conclusion】Through the hybridization of two fragrant Phalaenopsis with similar parents, some excellent individual plants of Phalaenopsis with fragrance and multiple flowers can be selected and bred. However, due to the complex genetic background and mechanism of Phalaenopsis fragrance, the offspring may not inherit the fragrance even though the parents have fragrance. Two fragrant parents PL608, PL321 in the experiment can provide references for the selection of parents of Phalaenopsis with fragrance and multiple flowers hybrid breeding in the future.]]></description>
<pubDate>2020/6/16 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WEI Xiaolian, HONG Shengbiao, ZHANG Jiaxia, ZENG Baodang, 
ZHANG Xiushan, GUO Yingduo, JIANG Xiuna, TANG Kai]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WEI Xiaolian, HONG Shengbiao, ZHANG Jiaxia, ZENG Baodang, 
ZHANG Xiushan, GUO Yingduo, JIANG Xiuna, TANG Kai</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004006&flag=1]]></guid><cfi:id>115</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Fresh-keeping Effects of Different Concentrations of Alum on Cut Carnation Flowers]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[The study was to explore the effects of different concentrations of alum on the preservation of cut carnation flowers and provide references for the development of preservatives for carnation.【Method】With pink carnations as tested materials and 3% sucrose + 200 mg/L citric acid + 200 mg/L 8-HQS as the basic liquid（CK）, different concentrations of alum were added to the basic liquid to conduct a vase holding test to study the vase life, fresh weight change rates and other physiological and biochemical changes of carnation cut flowers.【Result】Treatments with different concentrations of alum could extend the vase life of carnations. Among all treatments, the effect of basic liquid+180 mg/L alum was the best. Compared with the CK, the vase life was extended by 3.5 days. During the vase holding process, the fresh weight change rate of cut flowers remained at a high level after 6 days. On the 4th day, the water balance value was less than 0, which appeared 1 day later than that of CK, and had better water absorption and retention capacity. The soluble sugar content was higher than that of CK, which could increase the concentration of cell fluid. After treatment for 3 days, the activities of POD and CAT were higher than those of CK, which effectively scavenged the active oxygen free radicals After treatment for 6 days, the relative conductivity and MDA content of petals of cut carnation flowers were lower than those of CK, which were conducive to maintaining the membrane integrity, strengthening the stress resistance and delaying the aging of the petals.【Conclusion】Basic liquid+180 mg/L alum could effectively extend the vase life of the carnation, improve the water status of cut carnation flowers increase the enzyme activity to remove more free radicals, reduce the relative conductivity and MDA content, protect the integrity of the cell membrane, increase the content of soluble sugar, regulate the osmotic pressure of cells and delay aging to prolong the preservation period of cut carnation flowers.]]></description>
<pubDate>2020/6/16 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Yunying1, YANG Xiaochun2, WANG Tingqin2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Yunying1, YANG Xiaochun2, WANG Tingqin2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004007&flag=1]]></guid><cfi:id>114</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Water Retaining Agents on the Growth and Resistance Physiology of Eucalyptus cloeziana Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to improve the drought resistance of Eucalyptus cloeziana, the effects of different water retaining agents on the growth and resistance physiology of E. cloeziana seedlings were studied in order to provide data references for the cultivation and management of artificial plantation of E. cloeziana.【Method】Pot experiments were carried out to study the drought resistance and water saving capacity of three water retaining agents and their effects on the growth and physiology of E. cloeziana seedlings. The three water retaining agents were polyacrylamide - acrylic acid - sodium acrylate copolymer water holding agent（B1）, acrylamide potassium acrylate copolymer water holding agent（B2）and microbial water holding agent（B3）.【Result】After 24 days of drought treatment, the soil moisture content of B3 was 16%, while that of B1, B2 and CK was only 6%, 7% and 6%, respectively. After 30 days of drought treatment, the soil moisture content of B3 treatment was still 5% higher than that of B1, B2 and CK. The ground diameter of B3 treatment was 64.7% higher than that of CK, and the height growth of B3 treatment was 5.7%, 15.9% and 64.7% higher than that of B1, B2 and CK, respectively. Compared with other treatments, the proline content and catalase（CAT）activity of leaves under B3 treatment were the highest, while the malondialdehyde（MDA）content in leaves under B3 treatment was the lowest, but there was no significant difference in soluble sugar content among various treatments.【Conclusion】Water retaining agent can improve the drought resistance of E. cloeziana seedlings by mainly regulating the osmotic substances and antioxidant enzyme activities, and effectively reduce the harm of drought stress to E. cloeziana by adding active bacteria in the water retaining agent. Therefore, the microbial water retaining agent（B3）can be a better choice for E. cloeziana to deal with seasonal drought.]]></description>
<pubDate>2020/6/16 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DAI Jun1, LIU Kui2, YANG Mei2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DAI Jun1, LIU Kui2, YANG Mei2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202004008&flag=1]]></guid><cfi:id>113</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Microspore Culture-Based Haploid Breeding Technology of Chinese Kale（Brassica oleracea）]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To improve the breeding efficacy of Chinese kale, the procedure of microspore culture-based 
haploid breeding technology was studied.【Method】Mechanical crushing with centrifuge tube was used to extract isolated 
microspores of Chinese kale instead of artificial grinding, regenerated plantlets were treated with cholchicine, and other steps 
were also optimized.【Result】There was no significant difference in the embryoid induction rate（11.96%）of microspores 
of Chinese kale extracted by mechanical crushing and that by artificial grinding（10.80%）. Mechanical crushing could 
be used to treat samples in a batch to improve the extraction efficiency of microspores of Chinese kale. The microspores of 
Chinese kale collected by the two methods were cultured, a total of 255 embryoids were induced and 112 regenerated lines 
obtained after subculture and rooting culture. The treatment with colchicine improved chromosome doubling of regeneration 
plantlets（most of which were haploid）, leading to a DH attainment rate of 56.45%, 3.07 times higher than that of non treatment. Through the procedure, 41 DH lines were obtained from different donor varieties.【Conclusion】An integrated 
and effective microspore culture-based haploid breeding procedure was developed, which could be applied in breeding 
practice of Chinese kale to improve breeding efficacy.]]></description>
<pubDate>2020/6/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[罗文龙，郭巨先，符　梅，李桂花，徐小万，刘洪标，田永红]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>罗文龙，郭巨先，符　梅，李桂花，徐小万，刘洪标，田永红</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003005&flag=1]]></guid><cfi:id>112</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of ‘Hongluzhen’ Camellia on Grafting of Camellia chrysantha]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To study the effect of‘Hongluzhen’camellia as stock on grafting of Camellia
chrysantha, and to provide reference for propagation of high-quality grafting seedlings of C. nitidissima.【Method】
Five varieties of C. oleifera, tea tree and Camellia were used as stocks to graft C. chrysantha and the most suitable stock 
variety‘Hongluzhen’camellia was selected，and then‘Hongluzhen’camellia was taken as the research object 
to study the effects of different planting years, different grafting methods and different grafting time on C. chrysantha
grafting.【Result】Among the 5 varieties of C. oleifera, tea tree and camellia, the best stock for C. chrysantha
was‘Hongluzhen’camellia, followed by C. crapnelliana and C. polyodonta; When C. chrysantha was grafted 
with‘Hongluzhen’camellia as stock, the survival rate of‘Hongluzhen’camellia grafted with C. chrysantha from 1 
year to 5 years old was maintained at 92.5% to 96.4%, with no significant difference, the average shoot length increased 
with the planting years of stock from 6.8 cm to 18.3 cm; when different grafting methods were used for grafting, the 
survival rate of skin grafting and the average length of new shoots were the best; As to grafting time, the survival rate of spring and autumn grafting is significantly different from that of summer and winter, and spring grafting is the best, followed 
by autumn.【Conclusion】When taking‘Hongluzhen’camellia as stock grafting C. chrysantha, it is recommended to 
choose 2-3 years old stock seedlings grafting in spring with skin grafting method.]]></description>
<pubDate>2020/6/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[秦洪波，江新能，郭伦发，韦婉羚，王新桂]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>秦洪波，江新能，郭伦发，韦婉羚，王新桂</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003006&flag=1]]></guid><cfi:id>111</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on the Application of Shade-tolerant Ground-cover Plants in the Green Space of Park in Guangdong Region]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The application of plants in different canopy closure was researched to provide references for 
the landscape construction of special ground-cover plants.【Method】Taking the ground-cover plants in the park green 
space of Guangzhou and Shenzhen as the research objects, the green space with better undergrowth vegetation landscape was 
randomly selected as the plot. By measuring the canopy closure under the forest, the suitable species, constitutive features 
and configuration characteristics of ground-cover plants under different canopy closure environments were analyzed.【Result】
A total of 92 species（varieties）of shade-tolerant ground cover plants were recorded, of which most species belong to 
the family Asparagaceae, Marantaceae, and Araceae. Forty-three species had high shade tolerance, which were suitable 
for growing under forests with a canopy closure more than 0.9, and 31 species of ground-cover plants had a wide range of 
adaptation to the illumination. Most flowering plants had good flowering performance in the forest space with the canopy 
closure less than 0.8. The application of ground-cover color leaf plants could make up for the lack of color of the landscape under the forest. The patterns of plant configuration under the forest were mainly based on flat planting, column planting, band 
planting and natural configuration, and it should be rationally selected according to the characteristics of the landscape and the 
theme of the park layout.【Conclusion】The regional park green space of Guangdong is rich in shade-tolerant ground-cover 
plants, and the plants are mainly in natural configuration pattern.]]></description>
<pubDate>2020/6/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[高红娟 1,2，曾　伟 2，雷江丽 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>高红娟 1,2，曾　伟 2，雷江丽 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202003007&flag=1]]></guid><cfi:id>110</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Screening and Condition Optimization of LiquidFermentation Medium for Agaricus blazei Murill]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to explore the optimum formula and fermentation condition of 
liquid fermentation medium for Agaricus blazei Murill.【Methods】With the dry weight of A. blazei mycelium as the 
index, the liquid fermentation medium formula was optimized by single factor experiments and orthogonal experiments.
【Results】Under the conditions of single factor experiment, the optimal fermentation conditions were taking mannitol 
as carbon source, (NH4)2SO4 as nitrogen source, NaH2PO4 as other nutrient element with pH of 5.0. Through orthogonal 
design of different culture combinations, the best formula of A. blazei liquid fermentation medium were taking glucose 
as carbon source, (NH4)2SO4 as nitrogen source and NaH2PO4 as other nutrient element with the initial pH of 6. After 
conducting 150 r/min shaking culture at 25 ℃ for 5 days, the dry weight of A. blazei mycelium in 100 mL fermentation 
broth reached 0.4463±0.0132 g.【Conclusion】The results showed that there was a certain difference between single 
factor culture and orthogonal combination culture. In order to determine the culture and fermentation conditions more 
accurately, it is needed to combine the two methods when conducting fermentation culture. In addition, the liquidfermentation of A. blazei can rapidly achieve a large number of strain expansion, which lays a foundation for further cultivation 
or extraction of fermentation products.]]></description>
<pubDate>2020/4/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[侯宪文 1
，符瑞益 1
，徐　林 1
，文少白 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>侯宪文 1
，符瑞益 1
，徐　林 1
，文少白 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002004&flag=1]]></guid><cfi:id>109</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Advance in Ornamental AquaticPlants of Cryptocoryne]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[The research progresses in ornamental aquatic plants of Cryptocoryne were reviewed from the aspects of 
biological characteristics, germplasm resource distribution and classification, growth characteristics and cultivation and 
conservation, ploidy research, cell and molecular biology research, tissue culture and rapid propagation, and landscape 
application. And the future research direction of ornamental aquatic plants of Cryptocoryne was prospected. It is suggested 
that the germplasm resources of Cryptocoryne aquatic plants be protected through the establishment of germplasm 
resource nurseries in the future in order to avoid the danger of extinction of species. In combination with molecular biology 
techniques, breeding research of Cryptocoryne aquatic plants can be carried out to enrich the variety diversity and enhance 
the status of China’s ornamental aquatic plants in the international competition. Through domestication and cultivation, the
Cryptocoryne plants shall be used innovatively so that they can be promoted and applied like common ornamental plants 
such as Spathiphyllum kochii and Aglaonema and enter to thousands of households.]]></description>
<pubDate>2020/4/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[黄绍力，罗燕羽，刘绍钦，曹健松]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>黄绍力，罗燕羽，刘绍钦，曹健松</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002005&flag=1]]></guid><cfi:id>108</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress in Natural TheobromineEnriched Tea Plants]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Theobromine-enriched tea is a kind of rare tea germplasm resource with theobromine as the representative 
alkaloid, which has unique health care effect and utilization value. In this paper, four newly discovered natural theobromineenriched tea plants, including cocoa tea, Hongya tea, Camellia gymnogyna Chang and Camellia crassicoluma Chang were 
compared and reviewed from the aspects of the biochemical component characteristics, biological metabolism pathways 
and molecular mechanism of theobromine in tea plants. Theobromine accounts as high as 2%-6% of the dry weight of these 
tea leaves while caffeine is less than 0.5%. The dominant catechin monomer is gallocatechin gallate, while the content of 
epicatechin gallate is low. The mutation of arginine to histidine at the active site of caffeine synthetase changes the substrate 
specificity of N-methyltransferase, which leads to the termination of caffeine synthesis by caffeine synthetase and the 
enrichment of theobromine in tea plants. The natural theobromine-enriched tea resources enrich the diversity of tea species, 
but the level of excavation and utilization is still limited. Combining with the current development of tea breeding technology, 
the breeding and resource exploitation of natural theobromine-enriched tea germplasm are prospected.]]></description>
<pubDate>2020/4/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[闫　振 1
，黄健垚 1
，王登良 1，2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>闫　振 1
，黄健垚 1
，王登良 1，2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002006&flag=1]]></guid><cfi:id>107</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Influence of Different Topographic Conditions on theConstructive Species Coexistence Mechanismof Mixed Forest of Larch and Spruce]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Exploration on the mechanisms of species coexistence in the environment with limited 
resources has always been the core problem of community ecology.【Methods】A study was conducted on the mixed forest 
of Siberian larch-Siberian spruce in the mountainous forest area of Fuyun area. Based on the characteristics of coenology 
of mixed forest, the influence of the environmental factors (altitude, slope, aspect and slope position) on the distribution of 
community species and the morphological characteristics of the constructive species were studied by comparison analysis 
method, in order to explain the constructive species coexistence of the mixed forest of larch and spruce in the study area.
【Result】The results showed that the niche widths of Siberian larch and Siberian spruce were higher than those of other 
accompanying species; however, both of the diameter structures of Siberian larch and Siberian spruce showed aging trends. 
Godron coordinate calculation results also showed that the community stability coordinate was (39, 61), which was 26.87 
Euclidean distance downward compared with the ideal stability point coordinate (20, 80), indicating that the stability of 
the mixed forest community was relatively low. The topographic conditions (elevation, slope position, slope, and aspect) ofconstructive species were the important factors affecting the four-phase morphological characteristics (DBH, tree height, canopy 
area, and number of plants) of the two constructing tree species.【Conclusion】The habitat heterogeneity such as elevation, 
slope, slope position and aspect of Fuyun mountainous area affects the niche of Siberian larch and Siberian spruce, and 
maintains the long-term coexistence of these two species in mixed forest community.]]></description>
<pubDate>2020/4/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[周　泉，叶　茂]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>周　泉，叶　茂</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002007&flag=1]]></guid><cfi:id>106</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis of Water Source of Tamarix spp. Basedon Hydrogen and Oxygen Stable Isotope]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Tamarix is one of the dominant shrubs in desert and saline land. The study on the water use 
depth of Tamarix can provide scientific basis for the species selection of desertification control.【Method】By using the 
Tracing Method of Hydrogen and Oxygen Stable Isotope, Soil Drying Method, Multi-source Linear Mixed Model IsoSource 
and other methods, the D isotope ratioδvalue of the stem water of Tamarix and the soil at different depths in the Yingsu 
section of the lower reaches of Tarim River was measured. The soil moisture content at different depths was used to calculate 
the utilization rate of Tamarix to soil moisture at different depths.【Result】The average water use rates of Tamarix in 
Yingsu section at soil depths of 50 cm, 70 cm, 90 cm, 110 cm, 130 cm and 150 cm were 39.23%, 19.56%, 17.26%, 15.21%, 
14% and 4.50%, respectively. Tamarix used more water at intermediate soil layer.【Conclusion】The soil moisture content 
in the study area is low and different, fluctuating between 0.20% and 23.81%; Tamarix spp. in the Yingsu section mostly 
uses water at intermediate soil depths between 50 and 100 cm. With the increase of the distance from the river, there are 
more Tamarix and they transfer to use water in deeper soil layer gradually.]]></description>
<pubDate>2020/4/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[胡士可，叶　茂]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>胡士可，叶　茂</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202002008&flag=1]]></guid><cfi:id>105</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comprehensive Evaluation on Botanical Characteristics andFruit Quality of Eleven Abiu Germplasm Resources]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Botanical characteristics and fruit economic characters of 11 abiu germplasm resources 
were identified in order to provide a reference basis for the identification and superior variety breeding of abiu germplasm 
resources.【Method】The botanical characteristics of abiu were observed in the field. 16 quality indexes of the fruits were 
measured and a correlation analysis was conducted.【Result】The experimental germplasm resources of abiu had great 
differences in botanical characteristics and fruit economic characters, showing rich genetic diversity and different degrees 
of correlation among fruit indexes. The comprehensive analysis showed that HJG151 grew vigorously, the shape of mature 
fruit was perfectly round and the pericarp color was golden, with an average single fruit weight of 276.47 g and an edible rate 
of 67.64%. The fruit economic characters was superior and the overall character indexes were basically consistent. Vitamin 
C and protopectin content of HJG134 were the highest, which were 0.50 mg/g and 0.98% respectively. It could be used as 
an alternative germplasm resource with some excellent character indexes. 【Conclusion】2 excellent germplasms werescreened out, which provides a theoretical basis for the innovative utilization of abiu germplasm resources and the cultivation of 
excellent varieties.]]></description>
<pubDate>2020/4/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[周文静，胡福初，周瑞云，冯学杰，王美香，陈 哲，范鸿雁，王祥和]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>周文静，胡福初，周瑞云，冯学杰，王美香，陈 哲，范鸿雁，王祥和</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001005&flag=1]]></guid><cfi:id>104</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Response of Photosynthetic Performance in Aronia melanocarpa to Drought Stress and Rehydration]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was to investigate the response of Aronia melanocarpa to soil drought stress. 
【Method】 Taking two-year-old A. melanocarpa as the material, man-made simulation of drought stress, and postdrought water treatment were carried out through potted experiments, black fruit glints were studied. Two-year-old plants 
of A. melanocarpa were subjected to drought stress that simulated artificially. Gradual soil drought stress and subsequent 
rehydration treatments were carried out through pot experiment, and the effects of soil drought and rehydration on thephotosynthetic characteristics of A. melanocarpa were analyzed.【Result】During the whole process of drought stress, the 
net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci) and transpiration rate (Tr) of A. 
melanocarpa decreased gradually, however, the water use efficiency (WUE) increased with the aggravation of soil drought 
stress. Under drought stress, the total chlorophyll content decreased significantly, chlorophyll a/b value increased significantly, 
and carotenoid content did not change obviously, with higher leaf relative water content (RWC); the CO2 compensation point 
increased, and the carboxylation efficiency decreased significantly. After 30 days of drought, values of Pn, Gs, Ci and Tr all 
decreased to the lowest point, which were lower significantly than those before drought stress treatment with 85.4%, 79.86%, 
31.98%, and 91.55%, respectively. Meanwhile, the A. Melanocarpa still had certain biological activity and no death occurred. 
After rehydration, the leaf RWC could be restored to the control level, and Pn, Gs, Ci and Tr all increased rapidly. However, 
Gs, Ci and Tr could not restore to the level of drought treatment for 3d, but only decreased by 27.99%, 14.15% and 16.58% 
compared with those under drought treatment for 3d while Pn was 0.54% higher than that of drought treatment 3d, showing 
strong resilience to adapt to soil drought.【Conclusion】In the course of drought stress, the A. melanocarpa increased its WUE 
with higher Pn and lower Tr, and maintained good leaf moisture condition to resist the damage caused by drought stress. After 
the removal of stress, both of leaf RWC and chlorophyll content increased and various photosynthetic parameters recovered. 
These findings reflected that A. melanocarpa had strong self-regulating capacity after rehydration.]]></description>
<pubDate>2020/4/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[胡　艳，艾力江·麦麦提，安尼瓦尔·艾木都，古丽买然木·吐尼亚孜，
阿不都外力·吐尔洪，买尔开那·赛买提江]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>胡　艳，艾力江·麦麦提，安尼瓦尔·艾木都，古丽买然木·吐尼亚孜，
阿不都外力·吐尔洪，买尔开那·赛买提江</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001006&flag=1]]></guid><cfi:id>103</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[New Record of Wetland Plants in Guangdong Province]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to have a good understanding of the wetland plant diversity 
for providing important data support to the conservation and utilization of Guangdong plant resources. 【Method】 
Field investigation and literature consulting help us enumerate the checklist of Guangdong wetland plant. 【Result】 
Three species Deinostema violaceum (Platanaceae), Cryptocoryne crispatula var. balansae and C. crispatula var. 
tonkinensis (Araceae) were the new record for the flora of Guangdong, of which, Deinostema was the new record genera. 
Their morphological descriptions with colorful images were provided for further identification. 【Conclusion】 The new 
information of these plants of distribution may not only enrich the plant diversity in Guangdong but also provide valuable 
reference for the exploration and utilization of the wild wetland plant resources of Guangdong .]]></description>
<pubDate>2020/4/1 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[苏　凡，周欣欣，郭亚男，王瑞江]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>苏　凡，周欣欣，郭亚男，王瑞江</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202001007&flag=1]]></guid><cfi:id>102</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Fruit Mechanical Properties and Peel Structure during Development of Watermelon with Different Crack Tolerance]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to understand the mechanical properties of fruits and the changes of peel structure during the development of watermelon with crack tolerance and crack sensitive watermelon and reveal the relationship between watermelon crack tolerance and peel structure and fruit physical properties, providing a theoretical basis for the breeding of watermelon with crack tolerance.【Method】Taking crack tolerant germplasm S1111 and crack sensitive germplasm 201609019 as test materials, fruit hardness and crack stress at different development stages were analyzed by texture analyzer. The structure of peel structure was observed histologically by paraffin sectioning.【Result】In 
the process of fruit development, the fruit hardness and crack stress of S1111 were 1.35-1.54 times and 1.85-6.03 times those of 201609019, respectively, with significant differences. Histological observation showed that there were obvious differences between the peel structures of S1111 and 201609019, The peel cells of S1111 were closely arranged with obvious sclerenchyma structure. The peel thickness and exocarp thickness of S1111 were significantly higher than those of 201609019. While the epidermal cells of 201609019 were longer, exocarp cells and mesocarp cells were larger, and the cell area was significantly larger than that of S1111, and the areas of exocarp cells and mesocarp cells were 1.67-3.28 times and 2.77-5.69 times those of S1111 respectively. Correlation analysis showed that fruit hardness and fruit crack stress were significantly positively correlated with peel thickness and exocarp thickness, but negatively correlated with epidermal cell length, exocarp cell area and mesocarp cell area.【Conclusion】The analysis on fruit hardness, fruit crack stress and peel structure of watermelon showed that the 
crack stress and fruit hardness could be used to evaluate the crack tolerance of watermelon fruit, and it was more appropriate to 
evaluate the fruit at the later development stage.]]></description>
<pubDate>2020/12/28 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHAN Yuanfeng, HE Huang, XIE Caihong, DANG Xuanmin]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHAN Yuanfeng, HE Huang, XIE Caihong, DANG Xuanmin</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010003&flag=1]]></guid><cfi:id>101</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on the Growth and Development Regularity, Photosynthetic Characteristics and Yield Components of Lily]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was performed to enrich the germplasm resources and germplasm creation of lily in order to lay a foundation for screening out high-quality germplasm resources and the creation of lily in cold area of Liupanshan Mountain.【Method】Field plot experiment was used to analyze the growth rules, photosynthetic characteristics, flower and bulb morphological characteristics and yield components of six lily germplasm materials, and DPS11.0 statistical software was used for comparative analysis.【Result】The plants of lily grew extremely slowly in the early stage, entered a rapid growth stage from the gestation stage to the squaring stage and reached the peak growth period, and then grew slowly, with an S-shaped curve and a slow-fast-slow growth law. SB5 and SB2 of lily germplasm resources with outstanding performance were screened out, and the annual lily bulb yields were 886.87 kg and 553.96 kg per 667 m2 respectively, with significant yield difference.【Conclusion】The lily germplasm resources SB5 and SB2 with excellent yield and ornamental value suitable for planting in the cold area of Liupanshan Mountain were screened out.]]></description>
<pubDate>2020/12/28 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Cailing1，MAI Zizhen1，CAO Shaona1，MA Gui2，MA Wengna3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Cailing1，MAI Zizhen1，CAO Shaona1，MA Gui2，MA Wengna3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010004&flag=1]]></guid><cfi:id>100</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Nutritional Formulas on the Vegetative Growth of Camellia japonica]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】With Camellia japonica seedlings as the test material, the effects of different levels of nitrogen, phosphorus, potassium, organic carbon fertilizer and other factors on the vegetative growth of Camellia were studied, and the most suitable nutritional formula for C. japonica substrate cultivation was screened out.【Method】Pot experiments were carried out with different nutritional formulas（on the basis of conventional fertilizer and organic carbon fertilizer, nine nutritional formulas with different ratios of high nitrogen, high phosphorus and high potassium were set, and controlledrelease fertilizer was used as the control）during the vegetative growth stage of C.japonica【Result】Nutritional formula T3 had the highest growth indicators such as plant height, number of branches, crown width, base thickness, dry matter weight, and total root length. Nutritional formula T7 had the highest growth indexes such as leaf number and root surface area, and other growth indexes were close to those of T3, and there was no significant difference. All growth indicators of the two nutritional 
formulas were significantly higher than those of T1. Plants with T3 and T7 absorbed more nitrogen, phosphorus, potassium, and their individual plant’s absorption of nitrogen, phosphorus and potassium were all at high levels. The utilization rates of nitrogen and potassium in T3 were both at the highest level, and the utilization rate of phosphorus was close to the average. The nitrogen utilization rate of T7 was high, and the phosphorus and potassium utilization rates were close to the average.【Conclusion】The most suitable nutritional formula for the cultivation of C. japonica substrate was: high-phosphorus fertilizer ∶ organic carbon fertilizer=1 ∶ 2（combined application of organic and inorganic fertilizer, N ∶ P2O5 ∶ K2O ∶ C=1.0 ∶ 1.8 ∶ 2.6 ∶ 9.3）and high potassium fertilizer（combined application with inorganic nutrition, N ∶ P2O5 ∶ K2O=1.0 ∶ 0.6 ∶ 4.3）..]]></description>
<pubDate>2020/12/28 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SUN Yingbo1，HUANG Lili1，LIU Xiaofei1，TAN Zhouxuan3，TAN Wenbiao3，ZHU Yu2，YU Bo1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SUN Yingbo1，HUANG Lili1，LIU Xiaofei1，TAN Zhouxuan3，TAN Wenbiao3，ZHU Yu2，YU Bo1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010005&flag=1]]></guid><cfi:id>99</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Hormones and Hot Water Treatment on Germination of Curcuma alismatifolia Seed]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to break the dormancy and shorten the breeding period, the seeds of Curcuma alismatifolia‘Spring’×C. alismatifolia‘Scarlet’were soaked under different treatments.【Method】The experiment was conducted by using three treating methods including hormones, hot water and their combination. The soaking time and hormone concentration were different for each group. All the seeds were pregerminated for two months by using filter paper method at 28 ℃ . The germination potential and germination rate of the control group（clean water）and experimental group were investigated.【Result】Compared with the control group, the seeds of experimental groups were germinated one month in advance by using hormones and hot water treatment. It was found that the germination potential and germination rate exhibited highest values of 29.3% and 50.7% respectively under 400 mg/L GA3 treatment. Hot water soaking for five minutes at 80 ℃ reached an optimal effect, with the germination potential and germination rate of 10.3% and 17%, respectively. However, part of the seeds suffered death from scald. Moreover, it was regarded as the perfect solution through combining hot water soaking for 10 minutes at 60 ℃ with 400 mg/L GA3 treatment for 24 h. The germination potential was 40.7% and the germination rate was up to 64.3% after sowing two months.【Conclusion】The effects of combination of hormones and hot water treatment were significantly better than other treatments for the seeds germination of C. alismatifolia. This method was suitable to be applied in breeding practices due to its guarantee of early germination and uniform seedling.]]></description>
<pubDate>2020/12/28 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YE Yuanjun1, TAN Jianjun1, LI Dongmei1, LIU Jinmei1, KE Shuai2, ZHENG Xiahua2, XU Yechun1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YE Yuanjun1, TAN Jianjun1, LI Dongmei1, LIU Jinmei1, KE Shuai2, ZHENG Xiahua2, XU Yechun1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010006&flag=1]]></guid><cfi:id>98</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Rolling Degrees of Withering Leaves on Quality of Ester-flavor Black Tea]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】At present, the waste of summer and autumn tea resources is serious, and the homogenization of black tea is obvious. For these reasons, a kind of ester-flavor black tea was produced by the fresh leaves in summer and autumn. In order to optimize the fermentation process, the effects of rolling degrees of withering leaves on quality of ester-flavor black tea were analyzed.【Method】Three kinds of rolling degrees were set, as follows: gentle（15 min）, medium（30 min）and heavy（45 min）and summer Fudingdabai（Camellia sinensis L.）was used as raw material to inoculate the strain（RW）with ester-flavor, to produce black tea products with ester flavor-“ester-flavor black tea”. And the effects of different rolling degrees on the quality of ester-flavor black tea were evaluated through sensory evaluation and determination of main physical and chemical components.【Result】With the increase of the rolling degree, the overall concentration of ester-flavor was stronger. The content of water extract was the highest under medium treatment（25.06 %） and the lowest under heavy treatment（20.88 %）, however, the contents under these two treatments were significantly lower than the control（no inoculation treatment）（P<0.05）. The content of free amino acids was the highest under the medium treatment（1.21 %）, and the content of all treatments was significantly higher than that of the control（P<0.05）. The soluble sugar content was the highest（3.15 %）under the medium treatment, and it was significantly higher than that of the control
（P<0.05）. The content of polyphenols was the lowest（7.20 %） under the heavy treatment, and the content of all treatments was significantly lower than that of the control（P<0.05）. There was no significant change in theaflavin content among the samples with different rolling degrees（P>0.05）.【Conclusion】It can be concluded that the medium rolling degree （30 min） is more conducive to the quality formation of ester-flavor black tea.]]></description>
<pubDate>2020/12/28 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LIU Yanan, XU Wencan, WU Shuang, CHEN Wenjun, ZENG Li, ZENG Ruonan, HANG Youyi]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LIU Yanan, XU Wencan, WU Shuang, CHEN Wenjun, ZENG Li, ZENG Ruonan, HANG Youyi</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202010007&flag=1]]></guid><cfi:id>97</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research, Application Status and Prospect on the Stockscion Interaction Mechanism of Grafted Tomato]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Tomato is one of the most important vegetable crops in China with rich nutrition and diverse eating 
methods, and its yield ranks the first in the world. At present, in many areas of our country, nematodes, fusarium 
wilt, bacterial wilt and other diseases, and high temperature, drought, water-logging, salinization and other adverse 
environment for the loss of tomato industry continues to exist. Grafting, as an environmentally friendly technology, is easy 
to operate and can significantly improve the resistance of tomato to adverse environments, which has great application 
space in tomato industry in China. In recent years, with the development of related research on grafted plants, the 
understanding of the healing mechanism, stockscion interaction and traits improvement of grafted plants has gradually 
deepened. Therefore, this paper summarizes the effects of environmental factors（light, temperature and humidity） and internal factors（affinity and hormones）on the survival and healing of grafted tomato. The influencing factors of 
grafted plant traits were discussed from the perspectives of genetic material transfer between rootstock and scion, gene and 
protein expression. The application potential of grafted tomato was discussed from the perspectives of drought resistance, 
heat resistance, salt resistance and disease resistance, and the commercial potential of grafted tomato was analyzed from the 
aspects of yield and quality, with a view to provide references for the application of grafting technology in the production of 
tomato industry, and some problems existing in the current grafted tomato industry were prospected.]]></description>
<pubDate>2021/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[梅文宇，李　涛，孙保娟，宫　超，衡　周，游　倩，李植良，黎振兴，孙光闻]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>梅文宇，李　涛，孙保娟，宫　超，衡　周，游　倩，李植良，黎振兴，孙光闻</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108006&flag=1]]></guid><cfi:id>96</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Construction and Identification of a Homogenized Yeast Two-hybrid cDNA Library in Benincasa hispida]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to provide technical support for the researches on gene function 
of wax gourd by constructing a wax gourd yeast two-hybrid cDNA library.【Method】The roots, stems, leaves, male 
flowers and tender fruits of the wax gourd inbred line B227（wax gourd cultivar used for genome sequencing ）were used 
as materials to extract RNA by using the CTAB method. Then, the extracted RNA was used to isolate and purify mRNA, 
and double-stranded cDNA synthesis and DSN homogenization treatment were carried out. Later, cDNA was ligated with 
pDONR222 vector through BP recombination and transformed into E.coli DH10B competent cells to construct a primary library. LR recombination reaction was performed with plasmid extracted from primary library and pGADT7-DEST vector, 
and the products were transformed into E.coli DH10B competent cells to construct a secondary yeast two-hybrid cDNA 
library. The library capacity was calculated by the multiple dilution method, and the recombination rate and the sizes of 
the inserted fragments were calculated by colony PCR.【Result】The library quality test showed that the primary library 
capacity was 8.24×106
 CFU, and the homogenized secondary yeast two-hybrid cDNA library capacity of wax gourd was 
1.03×107
 CFU. The insert fragments mainly concentrated between 850 bp and 3 000 bp with good polymorphism and the 
recombination rate was 100%.【Conclusion】A homogenized yeast two-hybrid cDNA library in wax gourd was successfully 
constructed. The library is highly integrated and of good quality, which meets the requirements of yeast two-hybrid 
experiments. The library can be used in related experiments such as screening of interaction proteins, laying a foundation for 
the study on gene function of wax gourd.]]></description>
<pubDate>2021/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈　凤，闫晋强，李梅兰，江　彪]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈　凤，闫晋强，李梅兰，江　彪</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108007&flag=1]]></guid><cfi:id>95</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation on the Ability of 41 Hippeatrum Cultivars for Landscape Application in Shenzhen]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】A comprehensive evaluation system was constructed to screen out Hippeatrum cultivars 
suitable for landscape application in Shenzhen.【Method】Based on the observation and statistics of 20 characters of 41 
Hippeatrum cultivars, a comprehensive evaluation system was established from three aspects of ornamental, adaptability 
and landscape planting performance by using Analytic Hierarchy Process（AHP）.【Result】The evaluation results of 
7 varieties including Luna, Moonlight, Pink Charm, Glee, Daisy, Double King and Red Paradise were Grade Ⅰ, and they 
were recommended to be promoted and applied preferentially in Shenzhen gardens. The evaluation results of Blossom 
Peacock, Boast, Red Lion, Tinker Bell, Amigo, Ruby Star, Jungle Blossom and Marquis were Grade Ⅱ, which were 
suggested to be promoted in Shenzhen gardens. And the evaluation results of Vera, Lime Flare, Red Peacock, Ice Queen, 
Apple Blossom, Philadelphia, Opal Star, Overflowing, Wild Whispers and Rainbow were Grade Ⅲ, which could be used 
as alternative varieties. Half Beautiful, Princess, Sandra Ovey, Exotic Peacock, Andean Fairy, Minava, Orange Sovereign, Lady Jane, Exposure, Merry Christmas, Ferrari, Bolero, Benfica, Cape Horn and Crosby were Grade Ⅳ, which were not 
recommended.【Conclusion】A comprehensive evaluation system for Hippeatrum cultivars was established through model 
construction. Among the 41 cultivars, 15 cultivars suitable for landscape application were screened out, which provided 
references for the promotion and application as well as plant configuration of Hippeatrum cultivars in Shenzhen gardens.]]></description>
<pubDate>2021/9/24 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[徐桂红，黄义钧，钱瑭璜，曹　华，戴耀良]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>徐桂红，黄义钧，钱瑭璜，曹　华，戴耀良</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202108008&flag=1]]></guid><cfi:id>94</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification of“Yatoulv”Guiwei Litchi and Its Mineral Nutrition Diagnosis and Quality Evaluation]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to clarify some misunderstandings about“Yatoulv”Guiwei litchi, 
and evaluate whether its quality is superior to the normal Guiwei litchi.【Method】During 2019-2020, the phenomenon of 
“Yatoulv”in Guiwei litchi was investigated in the main production area in southern China. The contents of 12 macro-, 
secondary and micro-elements in the peel of the“Yatoulv”and normal Guiwei were detected, and the fruit quality 
indicators including sugar and acid components as well as free amino acids in two kinds of litchi pulp were compared.
【Result】“Yatoulv”phenomenon was found not only in several litchi varieties including Huaizhi, Jingganghongnuo, 
Lingfengnuo and Nuomici and so on, but also on the leaves of Guiwei litchi. Although there were significant differences in 
the contents of some peel mineral nutrients between“Yatoulv”Guiwei and the normal one, which was not the driving force 
for the“Yatoulv”phenomenon. The total soluble sugars were 176.2 ± 12.5 and 172.9 ± 13.0 g/kg for“Yatoulv”and 
the normal fruit pulp, respectively, and the total acids were 8 539.5 ± 1 130.9 and 7 303.5 ± 1 030.0 mg/kg for them, with the total sugar/total acid of 20.9± 3.0 and 24.0 ± 3.2, respectively. Moreover, no significant differences were observed for the 
contents of 3 sugar components, 9 organic acid components, total sugar and total acid, and total sugar/total acid between the both 
fruits. Thirty kinds of free amino acids were detected in both“Yatoulv”and the normal Guiwei fruits. The contents of various 
free amino acids, essential amino acid, umami-, sweet- and bitter-taste amino acids were nearly the same in the both fruit pulp, 
indicating no differences in their quality.【Conclusion】The phenomenon of“Yatoulv”is neither an unique characteristic of 
Guiwei litchi, nor a physiological disorder caused by fruit nutrition, which confirms the opinion that pepper spot is an infectious 
disease associated with fungus. And the fruit quality of“Yatoulv”Guiwei does not surpass that of the normal Guiwei.]]></description>
<pubDate>2021/8/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[徐　晗，韦增辉，张嘉雯，朱永聪，崔子霄，白翠华，姚丽贤]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>徐　晗，韦增辉，张嘉雯，朱永聪，崔子霄，白翠华，姚丽贤</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107005&flag=1]]></guid><cfi:id>93</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Screening of Desirable Medium-small-sized Cattleya Germplasm in Guangdong]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The research was conducted to screen out new and desirable varieties of medium-smallsized Cattleya germplasm that grow well under subtropical environmental conditions and show high ornamental values 
in Guangdong Province.【Method】Fourteen introduced Cattleya germplasm were used as experimental materials and 
adaptive cultivation management and comparative screening were conducted in Guangzhou. The field growth characteristics 
of different germplasms, ornamental quality traits and resistance characteristics were evaluated systematically through 
continuous years of observation, characters measurement and statistical analysis.【Result】The statistical results of various 
indicators show that the 11 candidate germplasms have good adaptability in Guangdong and are more suitable for cultivation 
and application in Guangdong area. Among them, the grade I and grade II germplasms screened out have better plant growth 
performance, stronger resistance, easier flowering capacity and higher ornamental value, which are worth recommending 
to the market for landscaping germplasms.【Conclusion】Through comprehensive evaluation, three hybrid horticultural varieties of grade I germplasm are selected from 14 candidate germplasms, namely Cattleya Vigour Leopard King（C-3）, 
Procatavola［Pcv.］Golden Peacock（C-12）and Brassolaelia［Bl.］Suzette Chaney（C-14）. And these three selected 
varieties can be used as preferred varieties for cultivation and application in Guangdong. It is recommended that these dominant 
varieties should be given priority in cultivation, production and leading demonstration applications. At the same time, for other 
non-dominant germplasms, they can be used as germplasm resources for material preservation according to breeding needs.]]></description>
<pubDate>2021/8/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[丁绵勇，李　佐，肖文芳，陈和明，吕复兵]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>丁绵勇，李　佐，肖文芳，陈和明，吕复兵</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107006&flag=1]]></guid><cfi:id>92</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Cultivation Adaptability of Introduced Paphiopedilum in Chaoshan Area]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to select Paphiopedilum species that are suitable for greenhouse 
cultivation, healthy growth and flowering period regulation in Chaoshan area. 【Method】Ten species including P. 
primulinum, P. rothschildianum, P. dianthum, P. micranthum, P. armeniacum, P. henryanum, P. tranlimianum, P. 
gratrixianum, P. charlesworthii and P. sanderianum, and seven hybrids of different types including P. Saint Swithin, 
P. Prince Edward of York, P. Michael Koopowitz, P. Pink in Ecstasy, P. SCBG Yingchun, P. Pacific Shamrock and P. 
Maudiae were planted in greenhouse, the main horticultural characters of Paphiopedilum such as growth situation, flowering 
s tatus, flowering time, plant height, flower scape length, flower color and petal were observed and analyzed. 【Result】All 
the introduced and cultivated species and hybrids can survive, except for P. micranthum and P. Prince Edward of York, 
15 species or hybrids of Paphiopedilum have blossomed periodically and can adapt to local environmental conditions in greenhouse. P. Pacific Shamrock, P. Maudiae, P. Michael Koopowitz and P. SCBG Yingchun have good comprehensive 
characters, their flowering period can be regulated in air-conditioned greenhouse, which are suitable for large-scale greenhouse 
cultivation in Chaoshan area.【Conclusion】The introduced and cultivated Paphiopedilum species could survive in Chaoshan 
area, the planting season or climate could also lead to differences in quantitative characters of some different varieties, and it 
shows great differences in growth state and flowering rates of different kinds of Paphiopedilum.]]></description>
<pubDate>2021/8/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[修　敏，张秀珊，韦小莲，洪生标，郑运欢，张锴滨，陈俊生，陈翠菊，林映云]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>修　敏，张秀珊，韦小莲，洪生标，郑运欢，张锴滨，陈俊生，陈翠菊，林映云</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107007&flag=1]]></guid><cfi:id>91</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Characteristics of Resource Distribution, Industry Status and Development Proposal of Precious Tree Species in Guangdong]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to understand the resource distribution characteristics and the 
industrial development status of precious tree species in Guangdong province, and then provide references for scientific 
breeding and high efficient utilization of precious tree species resources to achieve the precise improvement of forest 
quality in Guangdong province. 【Method】The species composition, distribution characteristics, seedling cultivation, 
demonstration base construction, under-forest planting and breeding, timber processing and utilization status and industrial 
development trend of the precious tree species in 21 cities of Guangdong province were investigated through questionnaire 
survey and filed survey methods.【Result】That there were a total of 53 precious tree species（belonging to 22 families and 
36 genera）with a coverage area of 93 900 hectares in Guangdong province, accounting for 0.99% of the total forest area of the whole province. The main forest types were young mixed artificial plantations, which could hardly provide timber for the 
precious tree species market. The main species were Castanopsis hystrix, Aquilaria sinensis, Michelia macclurei, Dalbergia 
odorifera, Santalum album, Ginkgo biloba and Acacia melanoxylon, accounting for about 96.63% of the total precious tree 
species area in Guangdong province. There were 85 cultivating demonstration bases for precious tree species with a total area 
of 6 733 hectares distributed sporadically in Guangdong province, of which 65.4% were private enterprises. There were many 
types of products associated with precious tree species, but no large-scale enterprise was found. The main product types in 
Guangdong province were precious tree species seedlings, furniture, carving crafts, crops and animals planted under forest 
etc. 【Conclusion】Strengthening the study on breeding and high efficient cultivation technology, scaling the development of 
superior precious tree species, innovating forest stand transformation technology, increasing the utilization of middle-age forest 
thinning resources, developing short term products and tertiary industry are the main important directions for the development of 
precious tree species industry in Guangdong province under current situation.]]></description>
<pubDate>2021/8/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[刘小金，徐大平]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>刘小金，徐大平</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202107008&flag=1]]></guid><cfi:id>90</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Diversity Analysis of Agronomic Traits of 
Cucumber Germplasm Resources]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The cucumber germplasm resources collected by our group were investigated to provide 
references for the development and utilization of these resources. 【Method】Based on 197 cucumber germplasm resources 
collected by our research group, 10 agronomic traits were investigated and observed, and diversity, principal component 
analysis and cluster analysis were carried out.【Result】The results of diversity analysis showed that the 197 cucumber 
germplasm resources had rich genetic diversity, and the average coefficient of variation was 22.59%, among which the 
coefficient of variation of the first female flower node was the largest（48.35%）, and the coefficient of variation of cotyledon 
width was the smallest（10.03%）. The results of principal component analysis showed that there were 3 principal 
components with eigenvalues greater than 1, among which the first principal component contained leaf and branch factors, 
the second principal component mainly contained hypocotyl and cotyledon seedling stage factors, and the third principal component included the first female flower node and leaf color. Cluster analysis showed that the 197 cucumber germplasm 
resources could be divided into 4 major groups, among which group I could be used to select varieties with long hypocotyls, 
Group II used to select varieties with smaller leaves, Group III used to breed varieties with larger cotyledons, and Group IV used 
to breed varieties with smaller cotyledons and leaves.【Conclusion】Cucumber germplasm resources preserved by our group 
have a rich diversity of agronomic traits, and there is a certain correlation between different agronomic traits. The germplasm 
resources of different groups can be used for corresponding cucumber breeding.]]></description>
<pubDate>2021/7/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈 林，曹振强，梁肇均，何晓明，王 敏，刘文睿，彭庆务，林毓娥]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈 林，曹振强，梁肇均，何晓明，王 敏，刘文睿，彭庆务，林毓娥</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106003&flag=1]]></guid><cfi:id>89</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Organic-Inorganic Mixed Fertilizers Substituting 
Chemical Fertilizer on Citrus reticulata Tankan Fruit 
Yield, Quality and Soil Nutrients]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】This study was to explore the effects of partial substitution of chemical fertilizers with 
different organic and inorganic fertilizers on fruit yield and quality of Citrus reticulata Tankan and soil nut rients, and to 
provide practical ba sis for reducing chemical fertilizer and improving quality and efficiency of Tankan.【Method】A field 
experiment was conducted, with chemical fertilizers as control（CK）, the substituting chemical fertilizer experiments with 
organic-inorganic mixed fertilizers were set up in a total of five fertilization treatments, including two calcium-magnesia phosphate fertilizer groups（F1 and F2）and two groups without calcium-magnesia phosphate fertilizer（F3 and F4）, then 
the responses of Tankan yield, fruit quality and soil nutrients to different fertilization treatments were compared.【Result】
Compared with conventional chemical fertilizer, the organic-inorganic mixed fertilizer substituting chemical fertilizer
（16.67%, 33.33%, 58.33% and 75%）could enhance soil pH value, organic matter and alkaline hydrolytic nitrogen contents, 
increase the Tankan yield by 4.4%-12.1%, improve the contents of soluble solids, total sugar, vitamin C and the sugar-acid 
ratio, and reduce the total acid content. When applying equal amount of organic-inorganic mixed fertilizer（equal amount of 
chemical nitrogen）, the treatments of F3 and F4 without calcium-magnesia phosphate fertilizers significantly reduced soil 
available phosphorus, calcium and magnesium contents, and the Tankan production declined but still with an increase by 
9.0% and 4.4% compared to CK, while the groups of F3 and F4 could more effectively improve the soil pH, organic matter 
and alkali solution nitrogen contents and the fruit quality indexes, and the effect of treatment F3 was better than that of F4.
【Conclusion】Organic-inorganic mixed fertilizer substituting chemical fertilizer is an effective measure to reduce the amount 
of chemical fertilizer and increase the efficiency in Citrus reticulata Tankan orchard. Considering the yield, quality and cost, at 
present, it is feasible to reduce the input of calcium-magnesia phosphate fertilizer in the test area, and 50% organic nutrients 
substituting inorganic nutrients（including calcium and magnesium）is a proper replacement ratio for fertilization.]]></description>
<pubDate>2021/7/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[赖　多，匡石滋，肖维强，刘传和，贺　涵，邵雪花]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>赖　多，匡石滋，肖维强，刘传和，贺　涵，邵雪花</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106004&flag=1]]></guid><cfi:id>88</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Organic Fertilizer Application and Bagging Treatments 
on Fruit Quality and Postharvest Preservation Performance 
of Prunus persica ‘apple’ Peach]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Regarding to the problems of increasing planting scale, backward cultivation management 
technology and uneven fruit quality of apple peach in Guizhou, the effects of organic fertilizer application and bagging 
treatment on the improvement of fruit quality of apple peach was discussed, in order to improve the quality and postharvest 
preservation performance of apple peach fruit.【Method】With Prunus persica ‘apple’ Peach as test material, the effects 
of organic fertilizer and organic fertilizer combined with bagging on the improvement of fruit quality and postharvest freshkeeping performance（compared with compound fertilizer treatment, CK）as well as the effect of bagging on pesticide  residues were  studied.【Result】The  single fruit weight of organic fertilizer treatment was 232.35（±21.3）g, which 
was increased by 39.8% compared with CK, but the fruit firmness, vitamin C, total acid and total sugar contents showed no 
significant differences between the two treatments. Further more, the application of organic fertilizer delayed the softening 
process of apple peach fruit during storage and prolonged the preservation period of about 1 week. The treatment of organic 
fertilizer combined with bagging significantly reduced the total acid content by 24%, and increased the reducing sugar content 
by 10.5% in peach fruit, and also  reduced pesticide  residues such as chlorpyrifos, cypermethrin and imidacloprid compared 
with organic fertilizer treatment, while the fruit weight, fruit firmness and total soluble solids content showed no significant 
differences. Further more, the treatment of organic fertilizer combined with bagging reduced the weight loss rate of apple peach 
fruit during postharvest cold storage.【Conclusion】The application of organic fertilizer combined with bagging had good effect 
on improving fruit quality, and could effectively improve the postharvest preservation performance of apple peach fruit.]]></description>
<pubDate>2021/7/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[常晓晓，陆育生，彭 程，邱继水]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>常晓晓，陆育生，彭 程，邱继水</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106005&flag=1]]></guid><cfi:id>87</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Structural Characteristics and Phylogenetic Relationship of 
Chloroplast Genome of Syzygium acuminatissimum]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Syzygium acuminatissimum is a high-value hardwood tree species in southern China. It is 
suitable to be planted as a street tree or landscape tree. The study revealed the structural characteristics and phylogenetic 
relationship of the chloroplast genome of S. acuminatissimum, which will be of great importance for the taxonomic researches 
of Syzygium and even Myrtaceae.【Method】The CTAB method was used to extract genomic DNA from the leaves of S. 
acuminatissimum. High-throughput sequencing was conducted through the Illumina HiSeq X TEN platform, the chloroplast 
genome was assembled on SPAdes v3.13.0, and the complete chloroplast genome of S. acuminatissimum was annotated 
on GeSeq. Then, the structural characteristics, sequence characteristics and phylogenetic relationship of the chloroplast 
genome of S. Acuminatissimum were analyzed.【Result】The complete chloroplast genome of S. acuminatissimum was 
159 352 bp in length, with 109 annotated genes, including 78 protein-coding genes, 27 tRNA genes and 4 rRNA genes, 
of which 17 genes had introns. A total of 21 379 codons were detected, of which serine codons were the most abundant 
and methionine codons were the least. 47 RNA editable sites were detected, of which the ndhB genes were the most （10）. 48 long repeat sequences were detected, of which 18 were forward repeats, 6 inverted repeats, 22 palindrome repeats 
and 2 complementary repeats. 230 simple repeats were detected, most of which were single nucleotides（205）. Results of 
genome comparison analysis showed that the IR boundaries of the 4 Syzygium plants were slightly different, and there were 7 
regions with nucleotide diversity higher than 0.015. Results of the phylogenetic analysis showed that S. acuminatissimum and 
S. aromaticum were closely related. 【Conclusion】The research results will help to carry out the follow-up researches on the 
phylogeny and species identification of Syzygium.]]></description>
<pubDate>2021/7/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[邓演文，刘晓洲，卓定龙，曾　凤]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>邓演文，刘晓洲，卓定龙，曾　凤</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202106006&flag=1]]></guid><cfi:id>86</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comparison of Agronomic Traits and Sensory Qualities of Four Dading Bitter Gourd Varieties（Lines）]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to preliminarily screen out high-yield and high-quality Dading bitter gourd varieties（lines）suitable for production and cultivation in South China to meet the needs of current production and consumption.【Method】A comparative experiment was conducted on four Dading bitter gourd varieties（lines）based on their field performance, biological characteristics, agronomic traits, yields and sensory qualities.【Result】The growth potential, stress and disease resistance of four Dading bitter gourd varieties（lines）were strong. Dingfeng No. 1 was an early-maturing variety, and other three were medium-maturing varieties. The fruits of Qinglei No. 1 and Cuiding No. 1 were big, positively conical and dark green. The fruit of Guangliang No. 2 was bigger with dark green color, and positive cone was slightly longer. The fruit of Dingfeng No. 1 was bigger with light green color, and positive cone was slightly longer. Qinglei No.1 had the highest yield per unit area, which was 28 454.25 kg/hm2, followed by Cuiding No.1, Guangliang No.2 and Dingfeng No.1, with the yield per unit area of 26 473.20 kg/hm2, 25 517.70 kg/hm2 and 22 826.40 kg/hm2, respectively. Qinglei No. 1 had the highest score of sensory quality evaluation, followed by Cuiding No. 1, Guangliang No. 2 and Dingfeng No. 1.【Conclusion】The comparison of related performance results shows that Qinglei No.1 is suitable for production and cultivation in spring in South China and can be further expanded for large-scale promotion and demonstration.]]></description>
<pubDate>2021/7/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[江 定，李光光，朱文斌，黄 贞，郑岩松]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>江 定，李光光，朱文斌，黄 贞，郑岩松</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105004&flag=1]]></guid><cfi:id>85</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification, Evaluation and Utilization of Germplasm Resources of Chieh-qua]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The germplasm resources of chieh-qua were collected extensively and evaluated comprehensively in order to provide material basis for the innovation of germplasm and the cultivation of new chiehqua varieties.【Method】Twelve main agronomic traits of the whole growth period of chieh-qua were investigated, and the contents of vitamin C, total acid, total sugar and soluble solids were detected. The resistance to Fusarium wilt and phytophthora blight was investigated through the combination of field and artificial inoculation.【Result】Eighty-seven germplasm resources were collected, and there were significant differences in the shape, pericarp color, female flowers rate, disease resistance and nutritional quality. The average content of Vc in 20 germplasms with early maturity was 0.47 g/kg; total acidity was 1.198 g/kg; soluble total sugar content was 2.68%; ratio of sugar and acid was 2.27 and TSS content was 5.08%. Three germplasms (No. 15, No. 72 and No. 76) with strong female, high quality and strong resistance were obtained, among them, the resistance index to Fusarium wilt of No 76 was 37.67, reaching medium resistance, length was 16.5 cm, diameter was 6.3 cm, section was 1.4 cm, curcumbitate index was 2.6 and single fruit weight was 0.51 kg in. The first female node of the plant was 6.1, the branching rate in 30 nodes of the main vine was 13.6%, and the female flower rate was 73.4%.【Conclusion】We obtained 20 germplasms with early maturity, 3 germplasms with dark pericarp color, 3 germplasms with female flower rate over 70%, 13 germplasms with strong resistance to Fusarium wilt and 9 germplasms with good nutritional quality. The new variety ‘Yuebao’, which was bred with No. 76 germplasm, showed high yield, good variety, strong resistance and broad promotion prospect.]]></description>
<pubDate>2021/7/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[王　敏，刘文睿，何晓明，江　彪，林毓娥，谢大森，彭庆务]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>王　敏，刘文睿，何晓明，江　彪，林毓娥，谢大森，彭庆务</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105005&flag=1]]></guid><cfi:id>84</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Cultivation Characteristic of‘Zitian Seedless’Grape in Turpan Region]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to evaluate the introduction performance of ‘Zitian seedless’ grape in Turpan region and the effect of gibberellin (GA3) on the fruit quality of ‘Zitian seedless’ grape.【Method】The introduction, cultivation and drying experiment of ‘Zitian seedless’ grape were carried out from 2012 to 2020, and its cultivation characters and drying charateristics were compared with those of local main cultivars. Different mass concentrations of GA3 were sprayed after flowering and the effects of different concentrations of GA3 on the fruit quality of ‘Zitian seedless’ grape were compared.【Result】‘Zitian seedless’ grape was a mid-late mature cultivar in Turpan region, with medium growth potential, high and stable yield, the fruit was purple black to blue-black when it was completely ripe, with uniform fruit size and coloring, the average culster mass and average grain mass were 634.62 g and 5.28 g respectively, and TSS/TA was 55.94. Such cultivar had excellent appearance and internal quality, which enriched the cultivar diversity of seedless table grapes in Turpan region, but the dry output rate was only 16.33% with poor plumpness and appearance quality, which was significantly lower than that of local main cultivars. Cluster mass, grain mass and pedicel coarseness were significant increased with GA3 treatments after flowering, while TSS content, anthocyanin content and GIRG were significant decreased. Under 50 mg/L GA3 treatment, the cluster mass was increased by 21.76% compared with CK, the content of flavonoids in pericarp increased by 34.03%, while contents of TSS and anthocyanins in pericarp and CIRG were decreased by 9.26%, 25.52%, and 13.26% respectively compared with CK, and the decrease rates were minimum compared with 150 mg/L and 100 mg/L GA3 treatment. Under 50 mg/L GA3 treatment, fruit coloring was uniform, with moderate cluster density, high TSS/TA and sweet taste, while coloring of ‘Zitian seedless’ grape under 150 mg/L and 100 mg/L treatments was bad, with dense cluster, less sweet taste and overall quality reduction.【Conclusion】The cultivation characters and fruit quality of ‘Zitian seedless’ grape are good, but drying characteristics is poor, therefore, ‘Zitian seedless’ grape has better development prospects in Turpan region as table grape. Spraying 50 mg/L GA3 on the tenth day after flowering can effectively improve the quality of ‘Zitian seedless’ grape.]]></description>
<pubDate>2021/7/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[白世践，户金鸽，赵荣华，蔡军社]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>白世践，户金鸽，赵荣华，蔡军社</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105006&flag=1]]></guid><cfi:id>83</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of 6-BA on Flowering Induction of‘Huofenghuang’Butterfly Orchid]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The effect of 6-BA on the flower forcing of butterfly orchid with a view to provide a basis for the regulation of flowering time of butterfly orchid, and to provide a reference for the flowering induction of varieties that are not easy to be induced.【Method】With‘Huofenghuang’butterfly orchid seedlings as test materials, by artificial forcing under the condition of air conditioning, single factor randomized block design was adopted and six 6-BA concentrations including 0（CK）, 5, 10, 15, 20, 25 and 30 mg/L were set up. The 6-BA was sprayed every 10 days, and the spraying 
position for the butterfly orchid was the 2nd, 3rd and 4th blade section area（from top to bottom）. During the spraying period, the soluble sugar, soluble protein, CAT and POD activity of butterfly orchid leaf were determine, and the indexes such as pedicel extraction rate, double pedicel rate, pedicel length, days from treatment to pedicel extraction flower diameter and flower bud number were investigated.【Result】After being treated with 25 mg/L 6-BA for 30 d, the pedicel extraction, rate of butterfly orchid was 80.00%, while that of water control was only 11.76%. After being treated with 10-30 mg/L 6-BA for 40 d, the pedicel extraction rate of butterfly orchid was more than 90.00%, and all the pedicels were extracted after being treated for 50 d. The time from 25-30 mg/L 6-BA treatment to pedicel extraction was 29 days, which was significantly lower than that of water treatment（44 days）. In accordance with the morphological observation, the soluble protein content in the butterfly orchid leaves was the lowest and the soluble sugar content in the leaves was the highest before the flower buds were extracted. The CAT activity and POD activity of butterfly orchid leaf gradually decreased at the time of flower bud extraction.【Conclusion】The optimal concentration of 6-BA for butterfly orchid was 25 mg/L and the pedicle extraction rate reached the highest in a short period of time, which provided a reference basis for low temperature replacement.]]></description>
<pubDate>2021/7/4 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[赖思婷，丰 锋，陈桦洁，廖 菲，唐芸妃，黄朝凤，陈江萍，吴日怡]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>赖思婷，丰 锋，陈桦洁，廖 菲，唐芸妃，黄朝凤，陈江萍，吴日怡</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202105007&flag=1]]></guid><cfi:id>82</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of 2, 4-epi-Brassinolide on the Growth and Flower Stalk Quality of Flowering Chinese Cabbage]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The effects of 2, 4-epibrassinolide (EBR) on the growth and flower stalk nutritional quality 
of flowering Chinese cabbage (Brassica parachinensis Bailey) were studied in order to screen out optimal application 
concentration and spraying period. 【Method】With the cultivar “Sijiu Youqing” as tested material, the effects of 
exogenous EBR at different concentrations and spraying periods on the growth and flower stalk nutritional quality of flowering 
Chinese cabbage were analyzed. 【Result】Spraying EBR could affect the growth and nutrition indicators of flowering 
Chinese cabbage. Spraying low concentrations (0.01-0.05 mg/L) of EBR significantly increased the flower stalk length and 
diameter and the contents of Vc, chlorophyll, total soluble sugar, soluble protein, total nitrogen and total potassium, while 
reduced the cellulose content. However, spraying high concentrations of EBR (0.14-0.17 mg/L) significantly increased the total nitrogen, total phosphorus and total potassium contents of flowering stalk. Based on the plant growth and nutritional quality 
after treatments with EBR at three growth periods, spraying low concentrations (0.01-0.05 mg/L) of EBR at seedling stage had 
the best effect on improving the growth and nutrition indicators of flowering stalks, and spraying 0.05 mg/L of EBR had the 
largest reduction in the cellulose content, which reduced from 5.71% of the control to 3.88%. Spraying 0.05 mg/L of EBR at the 
stages of seedling and before-bolting had the largest increase effect on the total nitrogen content, which increased from 0.75% of 
the control to 1.19%; while the flowering stalks sprayed with 0.14 mg/L of EBR at before-bolting stage had the highest contents 
of total phosphorus and potassium, reaching 0.36% and 7.00%, respectively. 【Conclusion】The suitable concentration of EBR 
used in flowering Chinese cabbage was 0.01-0.05 mg/L, and the spraying period was better at the seedling stage or at the stages 
of both seedling and before-bolting.]]></description>
<pubDate>2021/5/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[郭巨先，王　惠，张　亮，温静涛，康云艳，杨 暹，佟嘉乐]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>郭巨先，王　惠，张　亮，温静涛，康云艳，杨 暹，佟嘉乐</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104005&flag=1]]></guid><cfi:id>81</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Floral Formation Processes of Litchi and the Important Restrictive Factors]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[The inflorescence of litchi is composed of both panicle (compound raceme) and dichasia. The function 
of component panicle is to build up the skeleton of the inflorescence, and the component dichasia is special for the 
differentiation of flowers. The litchi inflorescence can be regarded as“cymes based on panicle”. There are two turning 
points in the floral formation processes of litchi. First, the physiological differentiation is switched into the morphological 
differentiation at the terminal buds of last autumn shoots. Second, the developing inflorescence transforms its differentiating 
status from panicle development to cymose differentiation. Therefore, the entire floral formation process can be divided, 
by using the two turning points, into three stages as follows: (1) Floral primordial induction and development. (2) Panicle 
emerges and elongates and the building up of the skeleton of the inflorescence. (3) Setting of flowers on cymose branches 
and the differentiation of floral organs. In this paper, we discussed how the important internal and external factors, such as 
nutritional status of trees, temperature, rainfall, sunlight affect and restrict the floral formation processes of litchi. It was 
pointed out that too heavy cropping which depleted the nutrients inside the tree is the main internal reason affecting floral 
formation of next year, and how the cold waves invaded in winter and spring is the most important environmental factor 
restricting the floral formation process of litchi. It was thought that litchis in Southern China need cold waves invade at right moment and right strength during the period of winter and spring for their floral formation, and the improper coming of the cold 
waves in winter and spring is the important external reason to cause the “irregular bearing” of litchi. We also emphasized, that 
both adequate internal nutrients and suitable weather conditions are necessary for the floral formation of litchi. Thus to regulate 
the physiological status of litchi trees is the main way to promote floral formation and flower retention while the environmental 
conditions are undesirable.]]></description>
<pubDate>2021/5/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[梁立峰]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>梁立峰</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104006&flag=1]]></guid><cfi:id>80</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research on the Application of Asexual Propagation Techniques in Lycoris Plant]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Lycoris plant is a kind of flower and medicinal plant with great market potential. It is 
important to solve the problem of propagation of Lycoris from the provenance, especially the proliferation of bulbs, which can 
make up the shortcomings of low survival rate of Lycoris seeds in conventional sowing and reproduction and low coefficient 
of sub-ball reproduction.【Method】Four asexual propagation techniques of Lycoris were studied, including in vitro culture 
of sterile seedlings from Lycoris seeds, in vitro culture of scales, basal incision and reproduction of scales, and basal incision 
and reproduction of scales after 1/3 of the bulbs being removed. The indexes of proliferation rate, rooting rate, seedling 
formation rate and growth condition were explored.【Result】The results of in vitro culture of sterile seedlings showed that 
the germination rate, the induction rate of multiple buds, proliferation rate and rooting rate of L.radiata and L. aurea were 
all higher than those of L. sprengeri and L. longituba. The results of scale culture in vitro showed that different media had 
great difference in the induction of the three kinds of Lycoris bulblets. For L.radiata, after 3 to 4 weeks of culture, there were rice granules among the scales and gradually grew into bulbs. The culture time was about 10 days earlier than that of L. aurea. 
The suitable period of scale base cutting propagation was from September to October in the initial growth period of leaves after 
flowering. The cut scales of L.radiata and L. aurea at about 25 (±2) ℃ , sterilized substrate（sand）and humidity of 60%-
70% were conducive to the survival of propagation, and the seedling formation rate was higher than 90%. The propagation rate 
of scale-block base incised by 1/3 of bulb was higher than 86%, and the formation of bulblets, roots and shoots were about 10-
15 days later than that of the whole bulb scale base incised.【Conclusion】The different indexes showed that the binary scale 
block cutting propagation of Lycoris plants is an effective, simple and low-cost method of asexual reproduction.]]></description>
<pubDate>2021/5/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[赵秀娟，张华通，林秀灵，麦任娣，张煜林]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>赵秀娟，张华通，林秀灵，麦任娣，张煜林</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104007&flag=1]]></guid><cfi:id>79</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cloning and Expression of EuDQD/SDH5 Genes in Eucalyptus grandis × E. urophylla]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Shikimate dehydrogenase (SDH) and dehydroquinic dehydratase (DQD) in plant shikimate 
pathway form dimer complex enzyme (DQD/SDH), which is the direct or indirect precursor of lignin, tannin and flavonoids 
biosynthesis. In the study, three EuDQD/SDH5 genes ( Accession No.: KY401151.1, KY401150.1 and KY401149.1) 
were isolated from Eucalyptus grandis × E. urophylla. The study of enzyme kinetics and expression characteristics of 
the three enzymes in E. grandis was an important basis for the study of shikimate dehydrogenase family in Eucalyptus.
【Method】EuDQD/SDH5 was cloned by RT-PCR and expressed in E. coli. The purified protein and enzyme activity 
were analyzed, and the expression characteristics of EuDQD/SDH5 genes in different tissues of E. grandis were studied 
by real-time quantitative PCR.【Result】The prokaryotic expression system of three mutant genes of EuDQD/SDH5 was 
constructed successfully. All the three DQD/SDH5 proteins had SDH activity, but their affinity for shikimic acid was different 
due to the difference of gene sequences. In plants, EuDQD/SDH5-10 had the highest catalytic efficiency for shikimic acid, 
while EuDQD/SDH5-6 had the lowest catalytic efficiency for shikimic acid. In Eucalyptus tissue culture seedlings, the expression of EuDQD/SDH5 gene was the highest in leaves, slightly lower in stems, and the lowest in roots. The expression 
of EuDQD/SDH5 was the highest in the leaves of the first internode, and it was similar and low in the leaves of the middle 
internode and the lowest internode. The expression of EuDQD/SDH5 gene in transgenic Eucalyptus grandis × E.urophylla
was also decreased while the content of lignin was decreased.【Conclusion】The results showed that EuDQD/SDH5 had SDH 
activity with shikimic acid as substrate. The gene was differentially expressed mainly in young leaves and stems. It may provide 
precursor for lignin biosynthesis of Eucalyptus grandis × E. urophylla.]]></description>
<pubDate>2021/5/27 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[王　梅，赵艳玲]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>王　梅，赵艳玲</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202104008&flag=1]]></guid><cfi:id>78</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Induction of Embryogenic Callus and Subculture Proliferation of Litchi chinensis Leaves]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202102006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The induction of embryogenetic callus and proliferation of litchi leaves were studied in order 
to lay a good foundation for the establishment and application of litchi regeneration system technology.【Method】With 
the litchi leaves as materials, the influencing effects （genotype, source of materials, components of culture medium, etc.） 
of litchi leaves on embryogenic callus induction were studied, and the proliferation experiment on subculture proliferation 
of embryogenic callus was carried out.【Result】The sterile leaves germinating for about 2-4 weeks were cut into a size 
of 1 cm2 with two cuts perpendicular to the main vein, and were inoculated facing down to the medium of MS+2,4-D 1.5 
mg/L+KT 2.0 mg/L+sucrose 30 g/L+agar 7 g/L+PVP 500 mg/L+inositol 100 mg/L. After 2-3 subcultures, the varieties 
of ‘Sanyuehong’and‘Yujinqiu’could induce embryogenic callus with better state and these callus could be used in 
subsequent experiments, with the induction rates of 21.67 % and 42.50%, respectively. The subculture proliferation rate on 
the 2,4-D 1.5 mg/L+NAA 2.0 mg/L medium was up to 364%, and the growth effect of embryogenic callus was the best when it was alternately cultured on the subculture medium with half the plant growth regulator.【Conclusion】Embryogenic callus 
could be induced from‘Sanyuehong’and‘Yujinqiu.’The combination of inositol 100 mg/L+2,4-D 1.5 mg/L+KT 2.0 mg/L 
was beneficial to embryogenic callus formation. The plant growth regulator combination of 2,4-D 1.5 mg/L+NAA 2.0 mg/L was 
beneficial to the proliferation culture of embryogenic callus, and the growth effect of embryogenic callus was the best when it 
was alternately cultured on the medium with half of the plant growth regulator and 2.0 mg/L AgNO3.]]></description>
<pubDate>2021/3/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[李　爽，金　峰，向　旭]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>李　爽，金　峰，向　旭</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202102006&flag=1]]></guid><cfi:id>77</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Mixed Substrates on the Growth of Cerasus campanulata Container Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202102007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to screen out a suitable mixed substrate, study on the effects of different mixed 
substrates on Cerasus campanulata cortainer seedling was carried out by using the one-year-old seedling as material. 
【Method】The study set up five kinds of mixed substrates consisting of nursery soil, peat soil, coir dust and perlite, 
and compared survival rate and growth indexes of C. campanulata container seedlings.【Result】Four mixed substrate 
combinations（nursery soil + perlite, peat soil + perlite, coir dust + perlite and nursery soil + coir dust + perlite）had 
no significant different effects on the ground diameter, plant height, branchlet length and crown width of C. campanulata
container seedlings, but the survival rate of C. campanulata after being transplanted for one year under coir dust + 
perlite treatment was only 66.7%, significantly lower than that of other combinations（ ≥ 80%）. The survival rate of C. 
campanulata container seedlings treated with “nursery soil + peat soil + perlite” was up to 100%. After one year of transplanting, the ground diameter, plant height, branchlet length and crown width of C. campanulata container seedlings 
increased by 5.63 mm, 105.46 cm, 68.61 cm and 70.00 cm, which were significantly higher than those of other treatments.
【Conclusion】According to the evaluation of fuzzy membership function analysis method of under the experimental environment, 
the best mixed substrate for the one-year-old container seedlings of C. campanulata is V nursery soil : V peat soil : V perlite = 1:1:1.]]></description>
<pubDate>2021/3/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[陈端妮 1
，叶小玲 1,2，胡晓敏 1,2，梁　荣 2，朱　军 2，叶超宏 1
，冯钦钊 3，陈红锋 4]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>陈端妮 1
，叶小玲 1,2，胡晓敏 1,2，梁　荣 2，朱　军 2，叶超宏 1
，冯钦钊 3，陈红锋 4</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202102007&flag=1]]></guid><cfi:id>76</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Parameters of Rootstock and 
Scion About Grafting of Pitaya]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202101010&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】This study was made to perfect grafting technique and parameters of rootstock and scion of 
pitaya so as to improve grafting survival rate and ensure bud sprouting in time.【Method】‘Hongshuijing No.6’ pitaya was 
selected as test material. Rootstocks were cut from ripe or green ripe vine-type shoots with different lengths. Mixed orthogonal 
array design （OAD） and OAD were used to observe the effect of rootstock position in vine, grafting method, number of buds 
per scion and scion maturity on grafting survival. Multivariate analyses on parameters of rootstock length, mass, ratio of mass 
to length, rootstock circumference and scion length were conducted with whether scion sprouted or not and scion sprouted time as the dependent variable respectively.【Result】The grafting survival rates of short ripe and green ripe vines, cut into 2 sections 
averagely for rootstocks, were 75.0% and 87.5%, respectively. Long ripe vine, cut into 3 sections averagely for rootstocks, was 
unfit to be grafted with one bud scion. The middle section from long green ripe vine was unfit for rootstock. It was estimated that 
longer rootstock, rootstock with lower ratio of mass to length and slight maturity, and longer scion might be suitable for grafting. 
Scions grafted on shorter, thicker and heavier rootstocks with higher ratio of mass to length and maturity were prone to germinate 
later or even unable to germinate.【Conclusion】The basic principle of the grafting of ‘Hongshuijing No. 6’ rootstocks was 
preliminarily determined. 1-2 years old vines, preferably green ripe vines, may be used for rootstocks. However, the middle section 
of long green ripe vine was unfit for rootstock. Rootstock length was not less than 40 cm. Scions were selected from solid stems 
near growing point and cut from up to down for grafting. Scion length was not less than 3 cm with 2 buds at least. Flat grafting was 
preferred. The grafting technique proved to be effective and practical after mass grafting was carried out with high survival rate of 
81.2%. Therefore, it was advocated to be used for breeding and production of pitaya seedlings.]]></description>
<pubDate>2021/1/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DAI Hongfen, LI Juncheng, PAN Yuzhu, SUN Qingming]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DAI Hongfen, LI Juncheng, PAN Yuzhu, SUN Qingming</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202101010&flag=1]]></guid><cfi:id>75</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on the Genetic Relationship of 11 Michelia
Species Based on SSR Markers]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202101011&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Michelia genus contains important landscaping and timber plants and mainly distributes 
in South China, however, the genetic relationship among different species is still unclear. Developing efficient genotyping 
methods and performing genetic relationship researches can provide theoretical and technical support for the utilization and 
protection of Michelia species.【Method】Using 11 Michelia species as research materials, highly polymorphic SSR primers 
were screened out. M13-tailed fluorescent label method was used perform the PCR to obtain genotyping data and the genetic diversity parameters were calculated. Furthermore, a Neighbor-Joining（NJ）tree was constructed based on the genetic distance 
of each species.【Result】All 12 pairs of SSR primers have relatively high polymorphism, and the amplification rate is 90.9%, 
which can finish genetic typing efficiently. The mean allele number for 12 markers is 8.17 and mean Shannon diversity index（I）
is 1.836. The observed heterozygosity（Ho）, expected heterozygosity（He）and polymorphic information content（PIC）are 
0.365, 0.839 and 0.796, respectively. The cluster analysis results show that species belonging to different subgenus can be clearly 
distinguished on the NJ evolutionary tree. Among them, seven Subgen. Metamichelia species are clustered on two main divisions, 
and three species of Subgen. Michelia was clustered on the third branch. The result of genetic relationship analysis in this study 
is consistent with that of the previous taxonomic study.【Conclusion】SSR marker genotyping system developed in this research 
can perform the genotyping of 11 Michelia species successfully. In the future, these markers can play an important role in hybrid 
parent evaluation, parent selection and hybrid offspring genetic relationship identification and other genetic studies.]]></description>
<pubDate>2021/1/26 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Fang1, ZHU Baozhu1, PAN Wen1, ZHU Zhengcai2, ZHONG Naisheng3, LI Wenye2, ZHAO Qiangmin3]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Fang1, ZHU Baozhu1, PAN Wen1, ZHU Zhengcai2, ZHONG Naisheng3, LI Wenye2, ZHAO Qiangmin3</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202101011&flag=1]]></guid><cfi:id>74</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comparison of Different Rootstocks for Orah and Introduction Performance of Orah in Guangdong]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to obtain suitable rootstocks for Orah and suitable planting areas in Guangdong, the comparison of Orah grafted on different rootstocks and introduction performance in Guangdong were studied. The results can provide a basis for highly efficient production of Orah. 【Method】Red tangerine（Citrus reticulata Blanco cv. Red tangerine）, fragrant citrus（Citrus junos Sieb. Ex Tanaka）and poncirus trifoliata〔Poncirus trifoliate（L.）Raf.〕were taken as grafting rootstocks for Orah. The affinity, tree growth, early fruiting and fruit quality of different rootstock-scion 
combinations of Orah were studied. And the introduction performance of Orah in eastern, western and northern Guangdong was observed to systematically understand the adaptability of Orah in Guangdong.【Result】The Orah on the three rootstocks showed the advantages of strong scion affinity and rapid crown formation. Among them, the fragrant citrus rootstock plants grew vigorously, the red tangerine rootstock plants grew moderately, while the trifoliate rootstock plants grew moderately and dwarfed obviously. The Orah on red tangerine rootstock and trifoliate orange rootstock had higher yield at early fruiting stage, reaching 8.8 kg/plant and 8.5 kg/plant, respectively, with early fruiting and better high yield stability, while the initial yield of fragrant citrus rootstock was low, only 6.5 kg/plant. However, the effect of rootstock on yield was not obvious after 2 years. The single fruit weight of red tangerine rootstock was the highest, with an average of 150.07 g, followed by that of fragrant citrus rootstock, with an average of 141.83 g and the lowest was found in poncirus trifoliata rootstock, only 132.13 g. The single fruit weight between red tangerine rootstock and poncirus trifoliata rootstock reached a significant difference level. The contents of soluble solids, total sugar and total acid were the highest in trifoliate orange rootstock and the lowest in fragrant citrus rootstock. The differences of soluble solids, total sugar and total acid between trifoliate orange rootstock and fragrant citrus rootstock were significant in the first two years, however, the differences were not obvious after 3 years. The phenological period of Orah was affected by the planting area. In eastern and western Guangdong, the shoot period and flowering period were about 30 days earlier than those in northern Guangdong, and the fruit ripening period was about 20 days earlier than that in northern Guangdong, but the colorchanging period was about 10 days later. The cultivation of Orah in different regions of Guangdong had the characteristics of good early fruiting, high yield and excellent fruit quality, but the fruits and autumn shoots of Orah in northern Guangdong were sensitive to frost.【Conclusion】Red tangerine and fragrant citrus are excellent rootstocks and worthy of promotion, while poncirus trifoliata is prone to yellowing and premature senility after high yield, therefore, it is not recommended to be used as grafting rootstocks for Orah. Orah is not suitable for large-scale cultivation in northern Guangdong due to its vulnerability to freezing injury.]]></description>
<pubDate>2021/12/13 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[吴 文，曾继吾，朱从一，张瑞敏，黄永敬]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>吴 文，曾继吾，朱从一，张瑞敏，黄永敬</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111005&flag=1]]></guid><cfi:id>73</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Current Status and Development Trend of Grape Protected Cultivation in Guangdong Province]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Grape is one of the main types of fruit trees in China, which is rich in nutritional value and loved by consumers. With the application of rain-shelter cultivation technology and dormancy release technology, grape planting has been gradually expanded from the traditional producing northern areas to the southern areas. Grapes protected cultivation in Guangdong effectively overcome the shortcomings of climatic conditions, and have the characteristics of quick effects and high returns. This model has gradually become a new bright spot in agricultural development of Guangdong. In order to understand the situation of grape protected cultivation in Guangdong, a comprehensive investigation and analysis was made from the current situation of grape protected cultivation at home and abroad, and the general situation, models, types, varieties and cultivation techniques of grape protected cultivation in Guangdong. Besides, the existing problems and corresponding countermeasures were analyzed. The results showed that the area and yield of grape protected cultivation in Guangdong continued to increase, and remarkable progress was achieved in the cultivation mode and standardized cultivation techniques. However, there were still many problems in grape protected cultivation in Guangdong, such as single variety structure, low standardization and scale of grape protected cultivation, weak market competitiveness and unreasonable cultivation facilities. In view of the above problems, the corresponding countermeasures were put forward. The key points 
were to further strengthen the breeding of new grape varieties, improve the standardization and intelligence level of protected cultivation, and develop suitable anti-typhoon and high-temperature shelter facilities for grape cultivation in Guangdong region, pay attention to brand development, achieve the integration of three industries, reduce the production costs, improve economic benefits, give full play to the regional advantages, promote the transformation of grape production from “quantitative benefit” to “quality benefit”, and realize the sustainable development of Guangdong grape industry.]]></description>
<pubDate>2021/12/13 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[谢玉明，谭德龙，聂松青，张长远，聂　俊，郑锦荣，李艳红]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>谢玉明，谭德龙，聂松青，张长远，聂　俊，郑锦荣，李艳红</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111006&flag=1]]></guid><cfi:id>72</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Requirement Law of Mineral Elements in Mango at Different Fruit Development Stages]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Balaced supply of mineral elements is of primary importance for the fruit yield and fruit quality of mango. The present research is to assess the uptake dynamics of macro- and micro-elements in mango at different fruit development stages and determine the proper fertilizer application time and application amount in order to provide a theoretical basis for the scientific and precise fertilization of mango.【Method】15-year-old‘Tainong 1’trees at full fruit stage in the dominant planting area of Renhe District, Panzhihua City were selected as the experiment materials. The changes in contents and accumulation of nitrogen （N）, phosphorus （P）, potassium （K）, calcium （Ca）, magnesium （Mg）, copper （Cu）, zinc （Zn）, iron （Fe） and manganese （Mn） in whole fruit of ‘Tainong 1’ mango were measured during the fruit maturing process.【Result】Results showed that the contents of N, K, Mg, Cu, Zn, Fe and Mn declined by 59.55%, 38.72%, 39.75%, 73.85%, 82.49% ,77.71% and 49.50%, respectively, from 7 to 77 days after full bloom （DAFB）, and the content of each element remained relatively stable or declined slightly. From 7 to 35 DAFB, the content of Ca increased by 56.85%, and then decreased progressively. P content remained relatively stable during the whole fruit developmental stage. The accumulation quantity of all nutrient elements increased gradually from young fruit stage to harvest period. The uptake amounts of all elements except for Mn were the greatest during the fruit quick expansion stage （35-77 DAFB）, accounting for 64.38%-74.94% of total uptake amount. The ratio of N/Ca, K/Ca and Mg/Ca showed a decreasing trend during the whole fruit developmental stage, while the K/P ratio increased from 7 to 77 DAFB and then decreased.【Conclusion】Quick expansion stage is a crucial period of nutrient uptake and fertilizer supplement for mango fruits.]]></description>
<pubDate>2021/12/13 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[刘　斌，苏穆清，王松标，武红霞，马小卫]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>刘　斌，苏穆清，王松标，武红霞，马小卫</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202111007&flag=1]]></guid><cfi:id>71</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation of Phenotypic Diversity ofDaguotianyangtao in Guangxi]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202208005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to reveal the diversity of phenotypic traits of carambola leaves 
and explore the excellent germplasm resources so as to improve the protection and utilization of germplasm resources of 
Daguotianyangtao.【Method】Taking the five species of carambola germplasm resources approved and named by the Crop 
Variety Approval Committee of Guangxi Zhuang Autonomous Region as research materials, six compound leaf traits, three 
terminal leaflet traits and three lateral leaflet traits were determined. The leaf phenotype and diversity characteristics were 
evaluated by variation analysis, correlation analysis, principal component analysis and cluster analysis. 【Result】The 
coefficient of variation of the 12 traits ranged from 9.97% to 28.94%, and the average coefficient of variation was 16.86%. The diversity was relatively rich. There were different degrees of correlation among the 12 phenotypic traits in the leaves 
of Daguotianyangtao, which could provide a certain theoretical basis for the improvement of leaf traits. Based on principal 
component analysis, 12 quantitative traits were divided into 4 principal components, and the cumulative variance contribution rate 
was 80.723%, which could be used as a comprehensive index for selection of leaf traits of Daguotianyangtao. Cluster analysis 
results showed that, when the square Euclidean distance was 5, all the materials were divided into 3 groups, and the second 
group was the best in 9 phenotypic traits such as compound leaf length, compound leaf width and compound leaf principal 
axis length, which could be selected as the prioritized germplasm resources for leaf trait breeding. 【Conclusion】Based on 
the results of variation analysis, correlation analysis and principal component analysis of the phenotypic characteristics of the 
tested Carambola varieties, Daguotianyangtao 2 showed the optimal performance in compound leaf length, compound leaf width, 
compound leaf principal axis length, compound leaf fresh weight, and leaflet number, terminal leaflet length, lateral leaflet 
length, lateral leaflet width, and lateral leaflet fresh quality among the 9 phenotypic traits, and could be used as a prioritized 
variety for leaf trait breeding.]]></description>
<pubDate>2022/10/9 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LIU Hangning1
, CHEN Qingmei1
, LIANG Weizhong1
, REN Hui2
, 
TIAN Jingfei1
, LI Jiaxin1
, CHEN Yuhan1
, ZHOU Qiong1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LIU Hangning1
, CHEN Qingmei1
, LIANG Weizhong1
, REN Hui2
, 
TIAN Jingfei1
, LI Jiaxin1
, CHEN Yuhan1
, ZHOU Qiong1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202208005&flag=1]]></guid><cfi:id>70</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Comparison of Development of In-season and Off-season Fruits of Dahong Pitaya]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202208006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to investigate the development laws of in-season and off-season 
fruits of pitaya and to set up growth models, which would provide theoretical basis and guidance for high-quality and highefficient fruit production.【Method】Dahong pitaya, the main domestic cultivar, was selected as test material. The vertical diameter (VD) and horizontal diameter (HD) of in-season and off-season fruits were measured at regular intervals during fruit 
development. The temperature and day length were recorded from flowering to maturing every day. Logistic growth equations 
of fruit development were fitted.【Result】The development of in-season fruits completed in 28 days. The VD and HD of inseason fruits grew faster than off-season fruits per day. In-season fruits were oblong and much smaller. The mean values of 
daily lowest temperature (DLT), daily average temperature (DAT), daily highest temperature (DHT), day length (DL) and daily 
temperature range (DTR) were higher than those of off-season fruits. The development of off-season fruits completed in 63 days. 
The fruit was nearly spherical and larger. The accumulations of DTR, DL, DHT and DAT were higher than those of in-season 
fruits. Growth curves of both fruits were in S shape. Inflexion point of VD curves of both fruits and HD curve of in-season fruits 
appeared before flower wilting. HD of off-season fruits was still growing faster and faster until the inflexion point appeared in 
9-12 days after flowering, And the growth rate decreased more and more after inflexion point. VD and HD of ripened off-season 
fruits were 1.03 and 1.25 times those of in-season fruits, respectively.【Conclusion】Higher growth rate of in-season fruit 
may be relevant to higher means of temperature and day length in the course of fruit development. Off-season fruit was larger, 
which may be relevant to higher accumulations of temperature and day length. The full development of HD of off-season fruit 
was and one of the direct factors causing differences in fruit shape of the two fruits. Single factor and multi-factor models of fruit 
development were fitted well, which could be used for analysis and prediction of fruit development.]]></description>
<pubDate>2022/10/9 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DAI Hongfen1
, LI Juncheng1
, SUN Yihong2
, SUN Qingming1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DAI Hongfen1
, LI Juncheng1
, SUN Yihong2
, SUN Qingming1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202208006&flag=1]]></guid><cfi:id>69</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Cloning and Expression of Oxidation ResistanceGenes in Wax Gourd Under Abiotic Stress]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Identification and cloning of BhiOXR genes from wax gourd and clarification of its expression 
characteristics under abiotic stresses would lay a foundation for further studying the function of BhiOXR genes in wax gourd.
【Method】BhiOXR gene family members from wax gourd reference genome were identified, full-length CDS primers were 
designed to clone the BhiOXR genes of the wax gourd by RT-PCR. Seedlings of wax gourd inbred line B227 were treated with low temperature (4℃ ), high temperature (40℃ ), salt stress (150 mmol/L NaCl solution) and drought (10% PEG6000 solution). 
The expression characteristics of BhiOXR genes under the above mentioned abiotic stresses treatment time: 0, 4, 8, 12, 24 h were 
analyzed by using qRT-PCR.【Result】Six BhiOXR members were identified from wax gourd reference genome, and the fulllength genes were further cloned and bioinformatically analyzed. qRT-PCR analysis results showed that BhiOXR1 responded 
to low temperature, high temperature and drought stress, but did not respond to salt stress. BhiOXR2a, BhiOXR2b and 
BhiOXR4 responded to low temperature, salt and drought stresses but not to high temperature stress; BhiOXR3 and BhiOXR5
responded to low temperature, high temperature and salt stresses but not to drought stress.【Conclusion】It is clarified that 
BhiOXR genes are induced by abiotic stresses as low temperature, high temperature, salt and drought, and different BhiOXR
genes have differences in response to abiotic stresses. Therefore, it is speculated that the six BhiOXR members may have 
different antioxidant effects in the process of resisting different abiotic stresses, which lays a foundation for further exploring the 
biological functions of BhiOXR genes in wax gourd.]]></description>
<pubDate>2022/9/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[QIAN Yulei, YAN Jinqiang, YANG Songguang, LIU Wenrui, XIE Dasen, WU Zhiming, JIANG Biao]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>QIAN Yulei, YAN Jinqiang, YANG Songguang, LIU Wenrui, XIE Dasen, WU Zhiming, JIANG Biao</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207005&flag=1]]></guid><cfi:id>68</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Introduction Performance and Cultivation Techniques of White Sapote in Guangdong Area]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The large-scale cultivation of white sapote in China is in its initial stage, and the adaptability 
of white sapote in Guangdong is not clear yet. Clarifying the phenology of white sapote in Guangdong as well as its flowering 
and fruiting habits and summarizing cultivation techniques can provide guidance for the large-scale cultivation of white 
sapote.【Method】A white sapote cultivar 'W4' was used as the research material to observe its botanical characteristics, 
phenology, fruit growth law, fruit setting and fruit quality. The key points of its high-quality cultivation techniques were 
expounded from aspects of garden construction, fertilizer and water management, shaping and pruning, pest control and fruit 
harvesting.【Result】The flowering period of white sapote on was from late January to early February, and there were three growth peaks of shoot growth in April, June and September, respectively. The slow growth period was from November to next 
February. During fruit growth and development, there were three fruit-dropping peaks, which were in mid-March, mid-April 
and May to June before harvest. The average fruit weight is 148.93 g, and the shape index is 0.83. The fruit melts in the mouth 
like ice cream, the edible rate is 79.7%, the soluble solid content is 20.36%, and the solid acid ratio is 45.83. White sapote 
can withstand a low temperature of -2 - -4℃ , which is higher than the average temperature of the coldest month (January) in 
Guangdong. Therefore, it can be cultivated in most areas of Guangdong.【Conclusion】This variety has good growth potential, 
strong adaptability, large single fruit quality, good flavor and excellent quality, and has high economic benefit in the market. It 
is a new fruit variety with planting potential. Attention should be paid to preventing anthracnose and sooty blotch in cultivation. 
White sapote is suitable for planting on the slope with loose soil and good drainage and irrigation in Guangdong. Dwarfing 
treatment should be done and tree shape be controlled for young trees.]]></description>
<pubDate>2022/9/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WU Yaqian, LI Juan, TU Panfeng, LIU Jinyang, CHEN Jiezhong, YAO Qing]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WU Yaqian, LI Juan, TU Panfeng, LIU Jinyang, CHEN Jiezhong, YAO Qing</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207006&flag=1]]></guid><cfi:id>67</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Tea Bud Recognition Method Based onImproved YOLOX Model]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The recognition of tea buds is one of the core technologies to realize automatic tea picking. 
The growth posture of tea buds and the shooting angle during collecting images will bring difficulties to the recognition of tea buds, resulting in the problem of low recognition accuracy. The study is conducted to improve the difficulty in tea bud 
recognition and improve the recognition accuracy of the model.【Method】The study presents an improved YOLOX tea bud 
detection algorithm SS-YOLOX, which can accurately identify and classify tea buds including one bud with one leaf and one 
bud with two leaves. In this method, the feature extraction ability of the model is improved by adding the attention module 
(SE), the problem of missing detection of small targets is improved, the soft NMS algorithm is introduced to improve the scoring 
mechanism when the detection frame overlap is high, and the ability of the model to recognize the buds in different scenes is 
improved.【Result】The ablation test of YOLOX model shows that the detection accuracy of the model can be improved by 
introducing soft NMS algorithm and SE module, but the improvement result is more obvious by introducing SE module. The 
feasibility and accuracy of the algorithm are verified by comparing different bud images. The experimental results show that the 
average accuracy mAP of SS-YOLOX model is 2.2% higher than that of the original YOLOX model, reaching 86.3%, indicating 
that the recognition ability of the model is improved after the improvement. When the number of target buds is large, SSYOLOX model can effectively reduce the missed detection rate and false detection rate.【Conclusion】Therefore, SS-YOLOX 
model can accurately identify tea buds, and the recognition effect is better, which can provide a technical basis for intelligent tea 
picking.]]></description>
<pubDate>2022/9/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YU Long, HUANG Chubin, TANG Jinchi, HUANG Haoyi, ZHOU Yunfeng, HUANG Yongquan, SUN Jiaqi]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YU Long, HUANG Chubin, TANG Jinchi, HUANG Haoyi, ZHOU Yunfeng, HUANG Yongquan, SUN Jiaqi</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202207007&flag=1]]></guid><cfi:id>66</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Plant Growth Regulators on
Flowering of Gymnocalycium baldianum]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aims to screen out the types, concentrations and application methods of plant growth 
regulators that can effectively promote early flowering and improve flowering uniformity of Gymnocalycium baldianum, 
and provide technical support for the regulation of flowering period of G. baldianum.【Method】With uniform seed balls 
of G. baldianum as test materials, the effects of different concentrations (100, 200, 400 and 800 mg/L) of paclobutrazol, 
uniconazole, indoleacetic acid and gibberellin on its flowering was explored.【Result】Spraying 100-800 mg/L 
paclobutrazol, uniconazole and indoleacetic acid solutions had no significant difference in the colour of seed balls, seed ball 
diameter increment, number of flowers and flowering rate. However, these three plant growth regulators could promote the 
early flowering of G. baldianum within a appropriate concentration range. The treatment of 100 mg/L paclobutrazol had the 
best result, which bloomed about 9.0 days earlier than that under water treatment. It could reach the full blooming period 
within 11.7 days, which was about 20.0 days shorter than that under water treatment, and the flowering had better uniformity. While the 100-800 mg/L gibberellin solution had an inhibitory effect on the flowering of G. baldianum, however, it could 
promote vegetative growth. The ball size, the number of thorns in the thorn seat, the thorn length, and the mass of the thorn seat 
all increased, and the colour of the seed ball was greener.【Conclusion】The study results can provide technological support 
for promoting the early flowering of G. baldianum and improving the uniformity of flowering. At the same time, it can improve 
the ornamental characters of G. baldianum according to individual needs, and improve its ornamental value, which has great 
significance to increase market share furtherly.]]></description>
<pubDate>2022/8/9 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YUAN Yun, YI Maosheng, ZHOU Xiaoyun, SU Qinglian, FAN Zhenghong, ZHANG Xuelian, XIE Weiping]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YUAN Yun, YI Maosheng, ZHOU Xiaoyun, SU Qinglian, FAN Zhenghong, ZHANG Xuelian, XIE Weiping</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206005&flag=1]]></guid><cfi:id>65</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Phyllosphere Bacterial Community Structure
and Diversity of Three Garden Plants in Niche Area]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to explore the phyllosphere bacterial community structure and 
diversity of landscaping plants in the niche, and to understand the effects of similar environmental conditions and plant 
characteristics on microbial community in the niche, with a view to provide references for the health management of garden plants and the exploitation of phyllosphere bacterial resources.【Method】High-throughput sequencing technology was applied 
to explore the bacterial community structure and diversity of Eriobotyra japonica, Magnolia grandifl ora and Ficus altissima
leaves facing east within 50 m radius circle of Dali University campus.【Result】Among the three garden plants, E. japonica
had the highest phyllosphere bacterial diversity, followed by M. grandifl ora and F. altissima. The dominant bacterial phylum of 
phyllosphere bacteria in different plants was Proteobacteria, and the first dominant bacterial genus was different. However, the 
top five dominant genera were Sphingopyxis, Methylobacterium, Spirosoma, Hymenobacter and Achromobacter. There were 
significant differences in phyllosphere bacterial community structure among the three plants, but the bacterial communities 
were similar among the leaves with different sizes of the same plant. Only E. japonica and M. grandiflora leaves had the 
largest phylum and genus distribution, indicating that the phyllosphere bacterial communities of evergreen broad-leaved 
plants was more diverse and complex than those of deciduous broad-leaved plants.【Conclusion】There were differences in 
the composition and diversity of phyllosphere bacterial communities among different plants, and the primary reasons for these 
differences were the characteristics of the plants themselves. Therefore, it is urgent to strengthen the researches on the utilization 
of phyllosphere bacterial resources of plants.]]></description>
<pubDate>2022/8/9 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[BAI Nongen, LIU Lilei, DENG Wei, JIANG Lin, YANG Xiaoyan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>BAI Nongen, LIU Lilei, DENG Wei, JIANG Lin, YANG Xiaoyan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206006&flag=1]]></guid><cfi:id>64</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Badi Degradable Film and Bud Grafting Quality on
Budding Survival Rate and Growth of Rubber Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】With the implementation of “plastic ban” in Hainan Province, the traditional plastic 
bandage of rubber tree bud grafting can no longer be used, and it is urgent to use degradable materials as bandage in the 
process of rubber tree bud grafting.【Method】With Badi degradable bandage grafted by different workers as budding 
bandage, the effects of traditional plastic bandage and Badi degradable bandage on the survival rate, sprouting rate and 
growth potential of mini-seedling buddings and young seedling buddings of rubber tree were compared.【Result】The 
survival rate of mini-seedling buddings with traditional bandage was 47.33%-70.70% and the sprouting rate was 90.00%- 99.53%, while the survival rate of buddings with Badi degradable film was 35.32%-57.00% and the sprouting rate was 
86.18%-92.56%, indicating that the survival rate and sprouting rate of buddings with the traditional bandage were significantly 
higher than those with Badi bandage. In the first leaf whorl, the leaf whorl distance with the traditional bandage (19.24 cm) 
was significantly higher than that with the Badi degradable film (18.06 cm), and there was no significant difference in other 
growth indexes. In the second leaf whorl, the stem diameter of traditional bandage (4.62 mm) was significantly higher than that 
of Badi degradable film (4.06 mm), while the whorl distance of Badi degradable f ilm (11.27 cm) was significantly higher than 
that of traditional bandage (9.88 cm), but there was no significant difference in the growth indexes of other scions. Among the 
young seedling buddings, the survival rate of traditional bandage treatment was 92.70%-98.09% and the sprouting rate was 
93.64%-99.75%, while the survival rate of Badi degradable film treatment was 73.33%-86.67% and the sprouting rate was 
92.50%-96.85%, indicating that the budding survival rate of the traditional bandage treatment was significantly higher than 
Badi bandage treatment, and the sprouting rates were above 90%, there was no significant difference in the growth indexes of 
scions.【Conclusion】The budding survival rates of mini-seedlings and young seedlings were significantly reduced by the Badi 
degradable film, and the sprouting rate of mini-seedlings and the growth potential of scions were significantly affected, but the 
growth potential of young seedling budding was not significantly affected. The bud grafting skill of the graft worker was also one 
of the key factors affecting the budding survival rate. Therefore, Badi degradable film could not be widely used in the miniseedling buddings, but could be properly used in the young seedling budding of rubber tree .]]></description>
<pubDate>2022/8/9 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[CHEN Qing, ZHOU Jun, WANG Xinlong, WANG Xinyan, HUANG Jian, WANG Jun]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>CHEN Qing, ZHOU Jun, WANG Xinlong, WANG Xinyan, HUANG Jian, WANG Jun</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202206007&flag=1]]></guid><cfi:id>63</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Studies on Effects of Different Temperature Treatmentson Seed Germination and Vitality of Brassica juncea]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】As an important vegetable, Brassica juncea has high economic value due to its edible 
and processed characters. However, the possible seed dormancy after harvesting is harmful to agricultural production, 
hence, studies on seed germination and vigor may contribute to understanding the physiological rules and timely sawing of 
B. juncea seeds.【Method】In order to study the relationship between temperature and seed vigor and dormancy, B. juncea
seeds harvested in 2017 and 2020 were used to analyze indexes of seed germination, seedling number, seedling length, 
mean germination time (MGT), and seedling vigor index (SVI) at 25℃ (CK), 4℃ and -10℃ with different treatment time.
【Result】 Seeds harvested in 2017 (hereinafter called 2017 seeds) had no dormancy but seeds harvested in 2020 (hereinafter 
called 2020 seeds) did have instead. And vigor indexes of 2020 seeds were extremely higher than those of 2017 seeds. The 
germination rate of 2017 seeds was less than 20%, and SVI was less than 1.5, however, the germination rate of 2020 seeds 
was higher than 60%, and SVI was more than 5. Especially, the germination rate of 2020 seeds was increased to 80% under 
-10℃ treatment.【Conclusion】Short time (24 h) treatment at 4℃ was adverse to seed germination of B. juncea seeds, but 
-10℃ treatment under dry condition was beneficial to breaking seed dormancy and raising seed vigor. Finally, seed storage 
time should be controlled in 1 year.]]></description>
<pubDate>2022/7/11 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WEI Chao, JIANG Jiachun, WEN Xin, WANG Meirong]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WEI Chao, JIANG Jiachun, WEN Xin, WANG Meirong</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205003&flag=1]]></guid><cfi:id>62</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Physicochemical Properties of Different Substrateson Vegetative Growth of Bougainvillea spectabilis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was performed to explore the effects of different substrate formulations on the growth 
of Bougainvillea in order to provide suitable cultivation mediums for Bougainvillea.【Method】The two Bougainvillea
cultivars‘Miss Manila’and‘Sao Paulo’were planted and seven kinds of raw materials including natural soil, compost, 
peat, sand, biochar, coconut coir and pearlite were mixed in different volume proportions to carry out cultivation experiment 
to study the growth of Bougainvillea under fifteen formula treatments and a natural soil control, respectively. The plant 
height, crown diameter, main, leaf SPAD values and NPK contents in leaf, and physical and chemical properties of 
culture substrates were determined, then the substrate formulas were comprehensively evaluated by principal component 
analysis, and the suitable cultivation mediums for the Bougainvillea was selected.【Result】The plant height increases of Miss Manila and Sao Paulo under T12 were significantly higher than other treatments, which were 22.40 cm and 21.40 cm, 
respectively. The crown width increases of‘Miss Manila’and‘Sao Paulo’under T13 and T15 were significantly 
higher than other treatments, which was 25.20 cm, 23.45 cm and 33.85 cm, 35.85 cm, respectively. The SPAD and 
N content in leaves of Miss Manila and Sao Paulo under T13 and T15 were significantly higher than other treatments.
【Conclusion】 The vegetative growth of Bougainvillea were well under T12 (soil ∶ compost ∶ peat ∶ river sand = 
3 ∶ 3 ∶ 2 ∶ 2), T13 (soil ∶ compost ∶ biochar =3 ∶ 5 ∶ 2) and T15 (soil ∶ compost ∶ biochar ∶ perlite = ∶ 3 ∶ 4 ∶ 1 ∶ 2) 
, which were the optimal substrate formulas for the cultivation of Bougainvillea. Also, it was proved that green waste compost 
could substitute peat as the main substrate material, and the appropriate volume ratio was 40% to 50%. The addition of 10% and 
20% of green waste biochar for cultivation of Bougainvillea showed significant effect.]]></description>
<pubDate>2022/7/11 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FAN Bo, YUAN Lili, SHI Zhengjun, LAN Cuiyu]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FAN Bo, YUAN Lili, SHI Zhengjun, LAN Cuiyu</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205004&flag=1]]></guid><cfi:id>61</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Canopy Interception Characteristics of Six Landscape Shrub Plants]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Canopy interception characteristics of six shrub plants used for landscaping in Guangzhou 
were studied in order to provide references for the application of shrub plants in the construction of sponge city.
【Method】The maximum interception of leaves, the maximum interception of unit leaf area, the maximum interception 
of branch, and the maximum interception of canopy of Hibiscus rosa-sinensis, Bougainvillea glabra, Loropetalum 
chinense var. rubrum, Pittosporum tobira, Aglaia odorata and Fagraea ceilanica were measured by submerging method.
【Result】The maximum interception of leaves of 6 landscape shrub plants was between 41.20-209.73 mg. The maximum 
interception of unit leaf area of 6 landscape shrub plants was between 6.84-15.80 mg/cm2
. The maximum interception of 
branch of 6 landscape shrub plants was between 1.85-14.85 g. The maximum interception of canopy of 6 landscape shrub 
plants was between 406.49-3 204.04 g/m2
. The interception of unit leaf area of L. chinense var. rubrum was the largest 
among 6 landscape shrub plants. The interception of leaves of B. glabra was the highest among 6 landscape shrub plants.
F. ceilanica was the best one in blade water holding performance among 6 landscape shrub plants. Among the 6 landscape shrub plants, H. rosa-sinensis had the maximum interception of branch and the maximum interception of canopy. The 
maximum interception of leaves had a significantly positive correlation with leaf area in 6 landscape shrub plants. The maximum 
interception of canopy had a significantly positive correlation with maximum interception of branch in 6 landscape shrub plants.
【Conclusion】Some landscape shrub plants with high canopy interception such as H. rosa-sinensis and some landscape 
shrub plants with high water holding performance such as F. ceilanica can be used in construction of sponge city to relieve the 
pressure of city water consumption and improve the ecological and sustainable development of Guangzhou City.]]></description>
<pubDate>2022/7/11 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHU Weiye, XIAO Bing, CHEN Ping, SHI Xiulan, ZHENG Danlin, HAN Ruihong]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHU Weiye, XIAO Bing, CHEN Ping, SHI Xiulan, ZHENG Danlin, HAN Ruihong</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205005&flag=1]]></guid><cfi:id>60</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Seasonal Dynamics of Nutrients in Leaves and Soil ofCarya cathayensis in Karst Area of Northwestern Guangxi]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to explore the dynamic changes of leaf nutrients and soil nutrients 
of Carya cathayensis in different seasons of the year, and provide basis for fertilization, management and transformation 
of low yield forest of C. cathayensis economic forest and control of rocky desertification in karst area.【Method】Twenty 
C. cathayensis were selected from 10 walnut orchards in Huanjiang County to collect leaves and soil. Leaf nutrients (total 
carbon, total nitrogen, total phosphorus, total potassium, calcium, iron, zinc and boron) and soil physical and chemical 
properties (organic matter, total nitrogen, total phosphorus, total potassium, available nitrogen, available phosphorus, rapid potassium, available boron, available iron, available zinc and available calcium) were determined, and the seasonal dynamics of 
leaves and soil nutrients were analyzed.【Result】With the growth of C. cathayensis, the content of nitrogen in leaves gradually 
decreased to 13.59 g/kg, while the contents of boron and calcium gradually increased. Iron content decreased first and then 
increased, while phosphorus content was the opposite. The calcium content in July and October was about twice that in April 
(13.54 g/kg). The contents of exchangeable calcium and available boron in the forest soil increased first and then decreased, and 
the content of total potassium gradually increased to 8.84 g/kg. The effective zinc content in April (8.46 mg/kg) was 6.9 times 
that in October. There were obvious seasonal changes in leaf nutrients. Except for organic matter and available nitrogen, other 
nutrients in soil had obvious seasonal changes. Correlation analysis showed that there was a significant negative correlation 
between leaf nitrogen and soil available zinc, a very significant negative correlation between leaf phosphorus and soil available 
nitrogen, and a significant negative correlation between leaf iron and soil available phosphorus.【Conclusion】The application 
of potassium fertilizer should be strengthened at the flowering stage of C. cathayensis; attention should be paid to the application 
of nitrogen and potassium fertilizers to improve the availability of macro elements during the fruit growth period; phosphorus 
fertilizer and trace element fertilizers such as calcium and boron should be supplemented during the fruit ripening period.]]></description>
<pubDate>2022/7/11 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HUO Cancan, ZHAO Lijun, ZHU Liqiong, HUO Lina, LIU Jinchi]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HUO Cancan, ZHAO Lijun, ZHU Liqiong, HUO Lina, LIU Jinchi</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202205006&flag=1]]></guid><cfi:id>59</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis of Soluble Sugar Components and Contents inFruits from Different Wampee Germplasm Resources]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204002&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Fruit quality indexes including single fruit weight, fruit shape index, total soluble solids 
(TSS) content, total soluble sugars content, total acids (TA) content and sugar components content of 64 wampee germplasm 
resources were investigated in order to provide theoretical basis for the breeding of high-quality wampee cultivars.
【Method】The anthrone colorimetry and acid-base titration method were used to measure the contents of TSS and TA in 
wampee fruits, respectively. The sugar component and content were analyzed by High Performance Liquid Chromatography 
(HPLC) simultaneously. Taking fruit shape index and TSS into account together, the principal component analysis was conducted to screen out high-quality wampee germplasms. 【Result】The single fruit weight of these cultivars (lines) ranged from 
3.82 to 13.17 g, and the fruit shape index was 0.94-1.57, with an average value of 1.1. The TSS ratio was 10.96%-24.55%, 
with an average value of 18.08%. The content of total soluble sugar was 8.04%-16.96%, with an average value of 11.88%. The 
content of TA ranged from 0.11% to 1.95%, with an average value of 1.01%. The contents of sucrose, glucose and fructose were 
18.65-74.85 mg/g, 9.7-32.1 mg/g and 11.15-46.85 mg/g, respectively, while the corresponding average contents were 44.28, 
20.00 and 22.56 mg/g. Particularly, the total soluble sugar content of Yingzui wampee (008) was the highest, reaching 16.96%, 
while Taxia sweet wampee (086) p ossessed the highest fructose ratio (35.1%) and sugar-acid ratio (102.14).【Conclusion】
Wampee was a type of sucrose accumulation fruit. 10 germplasms with excellent traits were screened out through principal 
component analysis comprehensively, of which Zaofeng wampee (010), Congcheng sweet wampee (050) and Jinfeng wampee (067) 
had already been released by Guangdong Crop Variety Approval Committee and all the selected germplasms could be used as 
candidate materials for breeding of high-quality cultivars and new choice for structure adjustment of wampee varieties.]]></description>
<pubDate>2022/6/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[CHEN Huiqiong, PENG Cheng, CHANG Xiaoxiao, CHEN Zhe, LU Yusheng, QIU Jishui]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>CHEN Huiqiong, PENG Cheng, CHANG Xiaoxiao, CHEN Zhe, LU Yusheng, QIU Jishui</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204002&flag=1]]></guid><cfi:id>58</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Influence Factors of Leaf Color of Aglaonema commutatum with Red Leaves in Tissue Culture]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Tissue culture is one of the important ways for rapid propagation of Aglaonema 
commutatum, the factors affecting leaf color in tissue culture were studied and explored to maintain the redness of leaf color, 
and to provide technical references for further stabilizing efficient tissue culture technology and regulating leaf color of 
A. commutatum with red leaves.【Method】Taking A. commutatum ‘Guanghuahong’ with red leaves as experimental 
material, the effects of proliferation medium, proliferation mode, light intensity and light quality on leaf color of A. 
commutatum were studied.【Result】The improved MS medium supplemented with 0.5 g/L K2
SO4
 was used for proliferation 
culture, and the proliferation and differentiation seedlings were more robust, with brighter leaf color, and the transplanting 
seedling rate was 90.00%.The leaf color of tissue culture seedlings cultured by the proliferation of clustered buds was 
more stable than that cultured by the proliferation of callus, and the transplanting seedling rate was higher. In the stages of 
proliferation and rooting, when the light intensity was 4 000 lx, the red plaque area increased, and the transplanting seedling 
rate was higher (88.89%). Under the light quality condition of red light : blue light = 3 ∶ 7, the lowest total content of chlorophyll in leaves was 0.037 mg/g, and the highest relative content of anthocyanin was 0.399 Units/g, and the leaves were 
red and brilliant.【Conclusion】Using the improved proliferation medium, adopting the proliferation mode of clustered buds, 
adjusting the light intensity and changing the red and blue light quality ratio can effectively maintain the redness of leaves and 
improve the production efficiency of tissue culture.]]></description>
<pubDate>2022/6/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[GU Mengyun,
　ZENG Weida, HUANG Mingchi, SU Qinglian, FENG Xiaomei, LIU Yanyan, ZHANG Xuelian, ZHOU Xiaoyun]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>GU Mengyun,
　ZENG Weida, HUANG Mingchi, SU Qinglian, FENG Xiaomei, LIU Yanyan, ZHANG Xuelian, ZHOU Xiaoyun</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204003&flag=1]]></guid><cfi:id>57</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Response of Leaf Stomatal Characteristics of ThreeSpecies of Juniperus to Natural Light Intensity]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Light-induced stomatal opening and closing is an important factor regulating CO2
 intake 
and transpiration in plants. The study of plant stomatal characteristics under different light environments is helpful to 
understand the mechanism of plant adaptation to the environment.【Method】Taking three species of Juniperus plants with 
heteromorphic leaves widely cultivated in northern China as research objects, the stomatal characteristics were observed and 
parameters were measured by using NaClO method, and the stomatal characteristics and their correlation under short-term 
light change （diurnal change） and long-term light difference （shady and sunny sides of the canopy） in the same habitat 
were investigated.【Result】The leaves of three species of Juniperus had two leaf shapes. The stomata of scale leaves were 
distributed on the adaxial side and the abaxial side at the junction of two scale-like leaves, and the stomata of thorn leaves 
were only distributed on the adaxial side with two stomatal bands. Under diurnal changes, the width of guard cells in leaves 
of the three species of Juniperus at noon decreased significantly by 0.06%, 0.09% and 0.09% compared with that in the morning, and the stomatal opening increased significantly by 27.6%, 24.3% and 24.3%, and they were negatively correlated, 
however, there was no significant difference in guard cell length and stomatal density between morning and noon, indicating 
that the three species regulated stomatal aperture to adapt to short-term light changes mainly by guarding the contraction of 
cell width.【Conclusion】There were significant differences in guard cell length and width, stomatal density and stomatal 
aperture between the sunny leaves and the shady leaves of the canopy of the three species, and the first three parameters were 
significantly correlated with stomatal aperture, indicating that the three species changed stomatal aperture by regulating guard 
cells in length and width and stomatal density to adapt to the long-term light difference. Stomatal characteristics can better 
reflect the difference of plant adaptability to long-term and short-term light.]]></description>
<pubDate>2022/6/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SONG Chenhui, ZHANG Youfu, WANG Mengke, WANG Lulu, CHEN Chunyan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SONG Chenhui, ZHANG Youfu, WANG Mengke, WANG Lulu, CHEN Chunyan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204004&flag=1]]></guid><cfi:id>56</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis of Species Diversity of Different ForestTypes in Xinfengjiang Reservoir Area]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Forest is a region with the richest biodiversity. Researches on plant diversity of 
different forest types are of great importance to study vegetation characteristics and its conservation. Xinfengjiang 
Reservoir is an important water source in South China, and forest in the reservoir area has an important role in 
biodiversity conservation and water purification. The analysis on species diversity of different forest types in the 
Xinfengjiang reservoir area can provide a scientific basis for the conservation and tending management of forests 
in the reservoir area.【Method】 Three types of typical forests, i.e., evergreen broad-leaved forest, coniferous and 
broad-leaved mixed forest and coniferous forest were selected as study areas. The tree, shrub and grass in the plots 
were recorded and species composition and diversity index were analyzed.【Result】 The species composition of forest vegetation in the Xinfengjiang reservoir area was relatively rich, with 47 families, 66 genera and 165 species 
recorded in the sample sites, among them, the numbers of species and individuals of Lauraceae, Fagaceae, 
Cupressaceae and Rubiaceae were higher. In general, species diversity showed a trend of evergreen broad-leaved 
forest > coniferous and broad-leaved mixed forest > coniferous forest. The species richness indexes of different forest 
types ranged from 19 to 32, the Shannon-Wiener indexes from 2.02 to 2.92, the Simpson dominance indexed 
from 0.77 to 0.92, and the Pielou evenness index from 0.69 to 0.85.【Conclusion】 The species diversity of evergreen 
broad-leaved forests in the reservoir area is high. Scientific and effective tending measures should be taken to promote 
coniferous forest succession reasonably. Long-term locational monitoring is also necessary to understand the relationship 
between forest and environmental factors. The study results can provide a scientific basis for conservation and utilization 
of biodiversity in the Xinfengjiang reservoir area.]]></description>
<pubDate>2022/6/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Wenjuan, GAN Xianhua, ZHANG Weiqiang, HE Wanlin, HUANG Fangfang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Wenjuan, GAN Xianhua, ZHANG Weiqiang, HE Wanlin, HUANG Fangfang</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202204005&flag=1]]></guid><cfi:id>55</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cloning and Bioinformatics Analysis of LcSAIGene Promoter from Feizixiao Litchi]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Acid invertase (SAI) plays an important role in litchi sugar metabolism. The litchi LcSAI
promoter is cloned and analyzed in order to provide a theoretical basis for the research on the function of LcSAI in regulating 
litchi sugar metabolism.【Method】With the pulp of Feizixiao litchi as test material, according to the litchi genome sequence 
information, the 1 500 bp promoter sequence upstream of LcSAI gene was cloned. At the same time, the transcription start 
sites, cis-acting elements and CpG islands in the promoter sequences were predicted and analyzed by bioinformatics tools.
【Result】A 1 514 bp LcSAI promoter sequence was cloned. In addition to a large number of promoter core elements such 
as TATA-box and enhancer element CAAT-box, promoter cis-acting elements also had light-responsive cis-elements, 
hormone response elements, anaerobic inducible response elements, and MYB binding sites, MYC binding sites and some 
cis-acting elements of unknown function. There may be three core promoter regions in the LcSAI promoter sequence. The LcSAI promoter region did not predict CpG islands that met the defined conditions.【Conclusion】The LcSAI gene promoter 
is related to adversity stress. It is predicted that LcSAI plays an important role in the physiological process of litchi resisting 
adversity stress.]]></description>
<pubDate>2022/5/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DONG Chen, LI Jinzhi, ZHENG Xuewen, WANG Yi, LI Weicai]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DONG Chen, LI Jinzhi, ZHENG Xuewen, WANG Yi, LI Weicai</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203003&flag=1]]></guid><cfi:id>54</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Cloning and Bioinformatics Analysis of A Hexose Transporter Gene in Pitaya]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Hexose transporter (HXT) is a kind of monosaccharide transporter, which can transport 
mannose, fructose, glucose and other hexose substances across the membrane, and participate in the development of 
pollen and the growth of the whole plant, and then determine the internal quality of fruit. Bioinformatics and expression 
characteristics of HXT gene in pitaya were analyzed in order to provide a theoretical basis for regulating the fruit quality 
of pitaya.【Method】A hexose transporter gene was obtained by gene cloning. Bioinformatics analysis was conducted by 
using NCBI, BioEdit, DNAMAN and other software or databases. The soluble sugar contents were determined by HPLC at 
fruit maturity stage. The relative expression characteristics of HTX gene in different lines of pitaya and different parts of a fruit were analyzed by fluorescence quantitative PCR. 【Result】A HXT gene named HuHXT was cloned from pitaya fruit by 
PCR amplification. The total length of the gene was 1 230 bp, encoding 410 amino acids. The protein instability coefficient was 
35.59, with 32 Ser, 15 Thr and 15 Tyr. There were sucrose, glucose and fructose in pitaya, and glucose and fructose were the 
main components. The expression of HuHXT was the highest in No. 97 line, followed by Zhanhong No. 2 and No. 128, while No. 
15 and No. 16 had the lowest expression level. The expression level of HuHXT was not significantly different in different parts 
of a fruit. The expression in parts near the pericarp was higher other parts of a fruit. 【Conclusion】HuHXT is a member of 
the Sugar-tr gene family. HuHXT protein is a stable protein with strong hydrophobicity. As a membrane protein, its secondary 
structure is mainly α-helix and random curl. There is negative correlation between the relative expression of HuHXT and the 
content of glucose, that is, the higher the HuHXT expression level, the lower the glucose content.]]></description>
<pubDate>2022/5/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Tianzi, ZHENG Xuewen, CAO Xinyue, CHEN Jiahua, YANG Zhuanying]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Tianzi, ZHENG Xuewen, CAO Xinyue, CHEN Jiahua, YANG Zhuanying</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203004&flag=1]]></guid><cfi:id>53</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Construction of Genetic Linkage Map of Plum (Prunus salicina L.) with ISSR and SRAP Markers]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Plum (Prunus salicina L.) is a tree species with great economic prospect in northeast China, 
and it has important social and economic values. Genetic linkage maps of plum were constructed by molecular markers to 
provide a theoretical basis for breeding new plum varieties.【Method】Jilin 6 and Longyuan Qiuli were used as the mapping 
parents. The authenticity of F1
 progeny was identified by SSR primers. 14 ISSR and 16 SRAP primers were selected to 
construct the genetic linkage map of plum by using Join Map 4.0 software and “double pseudo-testcross” theory.【Result】
In this study, 72 authentic F1
 progeny were obtained. ISSR and SRAP primers produced 5 segregation patterns and 120 
marker loci in this F1
 population. A genetic linkage map with 16 linkage groups and 38 marker loci with a total length of 
528.5 cM was constructed by software analysis. The groups ranged in size from 9.6-71.1 cM, and the average size was 13.9 
cM. The marker had a maximum genetic distance of 52.8 cM and a minimum genetic distance of 1.4 cM.【Conclusion】The 
construction of genetic linkage maps enriched the genetic research basis of plum in cold region, and contributed to the study 
of QTL mapping, marker-assisted breeding and gene mapping.]]></description>
<pubDate>2022/5/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SUN Lili, PENG Lina, LI Zheng, HOU Ruining, MOU Yunhui]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SUN Lili, PENG Lina, LI Zheng, HOU Ruining, MOU Yunhui</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203005&flag=1]]></guid><cfi:id>52</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Relationship Analysis on Leaf Nutrient of Blueberry Cultivars and Soil Nutrient in Guangdong Province]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Blueberry (Vaccinium spp.) is a plant species with no root hairs, resulting in weak uptake 
capacity of roots. Southern China is an emerging production area of blueberry. Therefore, the study aimed to investigate 
whether the soil conditions in southern China are suitable for blueberry growth and development, and whether the plant 
nutrients are balanced.【Method】With four blueberry cultivars in Heyuan, Guangdong Province as tested plants, the 
nutrient balance and levels in plants were studied with the method of Diagnosis and Recommendation Integrated System 
(DRIS) on the basis of leaf and soil analysis. The mycorrhizal colonization rate was determined, and the soil chemical 
properties affecting plant nutrient status were analyzed.【Result】There were significant differences in plant nutrient 
levels between cultivars, and the nutrient level of ‘Sharpblue’ was the highest. The contents of nitrogen, phosphorus 
and potassium in leaves were 15.90, 0.76 and 6.58 g/kg, respectively, and the iron content in leaves was 63.73 mg/kg. The total nutrient requirement of plants ranked as P>N>K. The levels of P and N were at a low range while that of K was at a 
normal range. It was noteworthy that there was no significant correlation between soil nutrient level and leaf nutrient level. The 
mycorrhizal colonization rate in roots was low (15.0%-26.7%), which led to a weak uptake capacity of roots.【Conclusion】The 
nutrient levels of blueberry plants in southern China are unbalanced, which are related to the weak root absorption capacity and 
low mycorrhizal colonization level. It is recommended that the application of P and N fertilizers, especially in organic forms, be 
increased and the application of mycorrhizal fungi be inoculated to improved the nutrient uptake efficiency.]]></description>
<pubDate>2022/5/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHUO Yishen, CHEN Meng, CAO Kai, YANG Junquan, CHEN Jiezhong, YAO Qing]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHUO Yishen, CHEN Meng, CAO Kai, YANG Junquan, CHEN Jiezhong, YAO Qing</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203006&flag=1]]></guid><cfi:id>51</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Application Investigation and Suitability Evaluation of Plant Resources in Wet Ponds in Hangzhou]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The plant resources and application status of wet ponds in Hangzhou were investigated and 
their suitability were evaluated, and suggestions for improving the application of plants in wet ponds in Hangzhou were put 
forward to provide references for the construction of wet ponds and sponge cities. 【Method】The plant resources of 8 wet 
ponds in Hangzhou were investigated on the spot and an evaluation system of wet pond plant suitability was constructed 
from three aspects: growth suitability, aesthetic suitability and rainwater function suitability. The grade classification 
was determined based on the comprehensive evaluation score. 【Result】There are 71 families, 129 genera, and 148 
species of commonly used plants in the wet ponds of Hangzhou. Among them, there are many species of Rosaceae, 
Gramineae, and Compositae. The repetition rate of plant applications is high, mainly for foliage and flower viewing, the ratio of evergreen species to deciduous tree species is 1 ︰ 2. Plant suitability evaluation results show that there are 2 plots 
with grade Ⅰ (excellent), 5 with grade Ⅱ (good), and 1 with grade Ⅲ (normal),and the suitability of plants in Hangzhou wet 
ponds is generally at a good level. Among them, Donghu Road Citizen Park has the highest comprehensive evaluation score 
for wet pond plants, followed by Yangliu County West Park, and Guyuan Park has the lowest score. The three indicators of 
maintenance needs, growth conditions, and rainstorm runoff reduction have the greatest impacts on plant selection in wet ponds.
【Conclusion】As an important terminal storage facility in the low-impact development system of sponge city, wet ponds have 
an important influence on the performance of rainwater functions. The research results can provide a scientific reference for 
the selection and application of wet pond plants in Hangzhou, and the research methods can also provide references for plant 
selection and application in other low-impact development facilities.]]></description>
<pubDate>2022/5/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LU Ying, WU Wenting, FANG Zhenjun, SUI Yan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LU Ying, WU Wenting, FANG Zhenjun, SUI Yan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202203007&flag=1]]></guid><cfi:id>50</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Concentrations of Uniconazole in PlugMedia on Growth and Development of Lettuce Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to explore the effects of different concentrations of uniconazole in 
plug media on the growth and development of different varieties of lettuce seedlings.【Method】Five lettuce varieties in 
southern China were used to study the effects of different concentrations (0-50 mg/L) of uniconazole on seedling growth, 
leaf shape parameters and soluble solids (TSS) of lettuce.【Result】With the increase of uniconazole concentration, the 
root fresh weight, root dry weight, shoot fresh weight and shoot dry weight of seedlings of various lettuce varieties increased 
first and then decreased. The root fresh weight and dry weight of bolting-tolerant lettuce and Roman upright lettuce were 
the highest under 10 mg/L uniconazole treatment, and those of other varieties were the highest under 5 mg/L uniconazole 
treatment. The total leaf width, maximum functional leaf width and total leaf area of seedlings also reached the maximum 
under 5 mg/L uniconazole treatment. The total leaf width and total leaf area of butter lettuce seedlings were larger than those of other varieties. The root-shoot ratio of iceberg lettuce, butter lettuce and bolting-tolerant lettuce increased with the increase 
of uniconazole concentration, while the root-shoot ratio of Hong Kong soft-tail lettuce and Roman upright lettuce increased first 
and then decreased. In addition, under the treatment of 50 mg/L uniconazole, SPAD values of lettuce seedlings of all varieties 
increased significantly, while plant height, total leaf area and TSS accumulation were severely inhibited.【Conclusion】Strong 
seedlings of lettuce could be cultivated by the medium with suitable concentration (5 mg/L) of uniconazole. The growth and 
development of lettuce seedlings would be inhibited by higher concentration of uniconazole.]]></description>
<pubDate>2022/3/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WANG Junjie, LIAO Yawen, WANG Yaqing, CHEN Xianglei, WANG Zhiwen,
ZHU Zhenzhi, YAO Fengxian, ZHU Bo, CHENG Chen]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WANG Junjie, LIAO Yawen, WANG Yaqing, CHEN Xianglei, WANG Zhiwen,
ZHU Zhenzhi, YAO Fengxian, ZHU Bo, CHENG Chen</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202003&flag=1]]></guid><cfi:id>49</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comprehensive Evaluation of 37 Long-podded Cowpea Germplasm Resources Based on Grey Relational Analysis and Principal Component and Cluster Analysis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The research was performed in order to have a full utilization of the long-podded cowpea 
germplasm resources.【Method】11 agronomic traits of 37 germplasm resources of long-podded cowpea were tested 
with the methods of principle component analysis, cluster analysis and grey relational analysis.【Result】Among the 37 germplasm resources of long-podded cowpea, the coefficient of variation of agronomic traits ranged from 7.99% to 42.02%. 
The coefficient of variation of pod length and pod width was the smallest ( ＜ 10%), and these traits showed the highest 
stability. Thus, the breeding of long-podded cowpea could be focused on screening and improving other 9 agronomic traits 
that had relatively high coefficient of variation ( ＞ 10%). These agronomic traits could be transferred into 6 principle 
components and the accumulative contribution rate of the first 6 components was 87.17%, thus they could be used to replace 
the 11 agronomic traits for evaluation and breeding of 37 germplasm resources of long-podded cowpea. When genetic 
distance degree was 10, 37 germplasm resources of long-podded cowpea cultivars could be divided into 3 cluster types: 28 
cultivars were divided into type Ⅰ ; 5 cultivars were divided into type Ⅱ ; 4 cultivars - Heshun, Nanbin708-K, Hongfeng 
708 and Hanmei No.8 belonging to type Ⅲ had relatively high yield and better quality, which were suitable for the planting 
and promotion of long-podded cowpea in Hainan. According to the weighted grey relational analysis, the cultivar Heshun, 
which had the highest weighted correlation of 0.7285, was the best for planting in Hainan. The principle component analysis 
and weighted grey relational analysis showed consistent result when comparing agronomic traits of 37 long-podded cowpea 
cultivars.【Conclusion】Through principle component analysis and weighted grey relational analysis, 10 germplasm 
resources of long-podded cowpea with better quality were obtained, respectively. Comparing these germplasm resources, 6 
of them (Heshun, Ruixianggui, Nanbin 708-K, Jiangjun 708, Hanmei No. 7 and Hanmei No. 8) are in common. This indicate 
that both methods can be used for screening and evaluation of germplasm resources.]]></description>
<pubDate>2022/3/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FU Qiwei, HUANG Weikang, CHEN Jijie, GUO Jingyi, WANG Suili, HUANG Guosong, LUO Feng]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FU Qiwei, HUANG Weikang, CHEN Jijie, GUO Jingyi, WANG Suili, HUANG Guosong, LUO Feng</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202004&flag=1]]></guid><cfi:id>48</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Treatments on SeedGermination of Passion Fruit]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was performed to explore the germination characteristics of Passiflora edulia 
Sims seeds in order to lay a foundation for seed seedling raising and seed germination and character observation of hybrid 
offspring of P. edulia.【Method】P. edulia seeds were used as experimental materials to study the effects of different water 
temperatures (25, 45, 65, 85, 100 ℃ ), time of soaking in concentrated sulfuric acid (0, 0.5, 1, 2, 5, 8, 10 and 15 min), 
gibberellin concentrations (0, 200, 400 and 800 mg/L), culture temperatures (18, 28, 35, 18-28, 28-35 ℃ ), seed shells and
different physical treatment methods (acupuncture and sanding) on seed germination of P. edulia. Taking germination 
rate, germination potential and germination index as test indexes, different germination conditions were evaluated 
to determine the suitable ones for seed germination.【Result】The germination rate of P. edulia seeds soaked in
65℃ warm water for 24 h was the highest (57.78%). The optimum soaking time in concentrated sulfuric acid was 8 min, the 
germination rate, germination potential and germination index were 77.38%, 77.38% and 3.39%, respectively. The germination rate was 81.11% when the soaking concentration of gibberellin was 400 mg/L. The optimum culture temperature 
for germination was 28-35℃ , and the germination rate was 64.44%. The seed germination rate of P. edulia was 76.67%. There 
was no significant difference in seed germination between physical treatment and acupuncture treatment, but acupuncture 
was not well controlled and easy to hurt seed embryo. Grinding treatment was the best, and the germination rate was 60%. 
【Conclusion】The seeds of P. edulia are suitable to be soaked in 65℃ warm water for 24 h or soaked in concentrated sulfuric 
acid for 8 min for 24 h; The seed germination rate can be effectively improved by grinding treatment or soaking in 400 mg/L 
gibberellin for 24 h. The suitable germination culture temperature is 28-35℃ .]]></description>
<pubDate>2022/3/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YAN Miaozhen, LI Lanlan, FENG Mingkai, CUI Yunyu, CHEN Zonglin, ZHOU Qiwei, LAI Jiaye]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YAN Miaozhen, LI Lanlan, FENG Mingkai, CUI Yunyu, CHEN Zonglin, ZHOU Qiwei, LAI Jiaye</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202202005&flag=1]]></guid><cfi:id>47</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Fruit Character Diversity of Longan （Dimocarps longan Lour）Germplasm Resources]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to provide a theoretical basis for quality improvement and utilization of longan 
germplasm resources and the breeding of new varieties, the data of fruit phenotypic characters of 99 longan germplasm 
resources were analyzed and the genetic diversity among varieties was discussed.【Method】Classification of fruit 
quantitative characters of 99 longan varieties were investigated by Q-cluster analysis, R-cluster analysis and principal 
component analysis.【Result】82 variation phenotypes were counted in 24 descriptive characters, six variation phenotypes 
were observed in fruit color and pulp texture, two variation phenotypes were observed in fruit top shape, and the number of 
average variation phenotypes was up to 3.42. The frequency of each variation phenotype was different. The average frequency of 5 variation phenotypes of freestone, slag melting, absence oft aril flavour, ellipse in seed top shape and non-cracking fruits 
was more than 60%. Among 21 quantitative characters, the variation coefficient ranged from 0.04 to 0.93. The genetic variation 
coefficients of related spike characters were larger than those of the quality characters. Correlation analysis showed that the 
content of soluble solids was extremely significant positive correlated with that of total sugar, sucrose, Vc, acid and reducing 
sugar. Single fruit weight was extremely significant negative correlated with the soluble solids content, Vc content, reducing 
sugar content and acid content, and extremely significant positive correlated with edible rate. The result of Q-cluster analysis 
showed that 99 longan germplasm resources were divided into 4 groups based on fruit phenotype characters, and there were 
obvious differences in fruit character indexes among various groups. The results of principal component analysis showed that 
the cumulative contribution rate of the first 15 principal components was 85.956%, which could basically express the genetic 
information represented by 45 characters. The contribution rate of the first principal component was 12.071%, which mainly 
reflected the fruit size, appearance quality and ear characteristics; the contribution rate of the second principal component 
was 9.465%, which mainly reflected the internal quality of fruit and seed characters.【Conclusion】Significant variations 
were found in the fruit phenotypic character indexes of 99 longan germplasm resources, and the frequency of each phenotypic 
variation was also different, showing obvious genetic diversity.]]></description>
<pubDate>2022/2/25 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[GUO Dongliang, WANG Jing, HUANG Shilian, HAN Dongmei, LI Jianguang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>GUO Dongliang, WANG Jing, HUANG Shilian, HAN Dongmei, LI Jianguang</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201004&flag=1]]></guid><cfi:id>46</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Analysis on Cloning of AcMADS14 Gene and Its Expression During Flower Development of Pineapple]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】AP3 plays an important role in the development of floral organs in many plants，However, 
there are no relevant reports on AP3 gene and its function in pineapple. This study can provide a theoretical basis for the 
functional identification of AcMADS41 in pineapple flower development. 【Method】An AP3 gene, AcMADS41, which may 
be involved in flower development, was cloned from pineapple flower bud. The physicochemical properties, protein domains, 
evolutionary relationships and cis-acting elements etc. were predicted by bioinformatics analysis.【Result】The full-length 
DNA sequence of this gene was 5 098 bp, with a coding region of 458 bp, encoding 155 amino acids. It contained the MADSBOX domain and K-BOX domain unique to the MIKC subfamily of the MADS- box family. Phylogenetic analysis showed 
that AcMADS41 clustered with date palm（Phoenix dactylifera）and oil palm（Elaeis guineensis）, and it was speculated 
that AcMADS41 would play the same important function as AP3 in flower bud differentiation. Genomic data analysis 
showed that AcMADS41 was mainly expressed in flowers. RNA-Seq analysis showed that AcMADS41 was not expressed in early anthesis, but was highly expressed in late anthesis, and was mainly expressed in petals, stamens and styles. The relative 
expression of ACMADS41 gene was the highest in styles, which may be a key gene in style development.【Conclusion】The 
results provides a theoretical basis for the identification of the function of AcMADS41 in pineapple flower development, which is 
of great significance to further explore the molecular mechanism of flower formation in pineapple.]]></description>
<pubDate>2022/2/25 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHENG Xuewen, OUYANG Yanwei, PAN Xiaolu, ZHANG Hongna, YANG Zhuanying]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHENG Xuewen, OUYANG Yanwei, PAN Xiaolu, ZHANG Hongna, YANG Zhuanying</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201005&flag=1]]></guid><cfi:id>45</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research on Spatial Change of Forestland in Nanning City Based on GIS Platform and Spatial Autocorrelation Model]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to provide basic data for working out scientific and effective forestland management 
measures, the law of temporal and spatial distribution of forestland in Nanning was mastered.【Method】Based on the 
data of forestland resources in Nanning in 2008, 2013 and 2018, the study analyzed the distribution patterns of forestland 
at different periods, the dynamic characteristics of spatio-temporal distribution of forestland and spatial aggregation of 
forestland by using spatial statistical techniques, transfer matrix and spatial autocorrelation model. 【Result】From 2008 
to 2018, in Nanning, the area of natural forests decreased by 2.39×104 hm2, the area of plantation increased by 2.60×104 
hm2
, the area of other decreased by 2.98×104 hm2 and the total area of forestland decreased slightly. The spatial variation 
of forestland types was rather complicated. Natural forests and other woodlands were mainly transformed into plantation, 
and the main flow of plantation was non-forest land. The changes of forestland types were more frequent during 2013-2018. 
Natural forest and plantation had significant spatial autocorrelation（P<0.01）, and the spatial autocorrelation of natural 
forest was higher than that of plantation. The spatial aggregation of natural forest and plantation decreased gradually during the study period. 【Conclusion】During 2008-2018, significant changes have taken place in the forestland in Nanning. In order 
to effectively protect forestland and achieve sustainable development of forest resources, it is necessary to further strengthen the 
implementation of scientific and effective protection policies and measures of forestland resources.]]></description>
<pubDate>2022/2/25 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHOU Haiju, HU Jingda, YU Sufang]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHOU Haiju, HU Jingda, YU Sufang</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202201006&flag=1]]></guid><cfi:id>44</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Genome-Wide Identification and Expression Analysis in Oxidative Stress of TCP Transcription Factor Family in Eggplant (Solanum melongena L. )]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to identify the SmTCP gene and analyze the members of SmTCP transcription factor family in eggplant. The determination of its expression under stress and hormone treatment laid a foundation for further study of the function of SmTCP gene in eggplant.【Method】The members of SmTCP gene family were identified from the eggplant genome. The physicochemical properties and distribution of members of SmTCP transcription factor family in eggplant were analyzed by bioinformatics methods. Eggplant seedlings were treated with high temperature (42 ℃ ), low temperature (4℃ ), salt stress (200 μmol/L NaCl solution), heavy metal (100 μmol/L CdCl2 solution), Pseudomonas solanacearum, salicylic acid and abscisic acid. The expression of SmTCP gene in eggplant under seven treatments was analyzed by qRT-PCR.【Result】A total of 32 SmTCP members were identified and analyzed by bioinformatics method. The results of qRT-PCR analysis showed that the SmTCP gene of eggplant was up-regulated in response to biological and environmental stress. Under hormone treatment, the SmTCP of eggplant was up-regulated generally after ABA treatment, and the SmTCP of eggplant was down-regulated generally after SA treatment. The contents of SmTCP in leaves and fruits were higher. 【Conclusion】It was found that the SmTCP gene of eggplant express in response to stress. The expression of different SmTCP members in response to stress and the expression levels in various organs are different. Most of the Class I TCP members of eggplant are significantly up-regulated under heat stress. Therefore, it is speculated that the SmTCP gene of eggplant may be involved in resisting adversity stress.]]></description>
<pubDate>2023/2/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[MEI Wenyu1,2, FANG Yanfen1,2, GONG Chao1, MAI Peiting1, SUN Baojuan1,LI Zhiliang1, LI Tao1, SUN Guangwen2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>MEI Wenyu1,2, FANG Yanfen1,2, GONG Chao1, MAI Peiting1, SUN Baojuan1,LI Zhiliang1, LI Tao1, SUN Guangwen2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212003&flag=1]]></guid><cfi:id>43</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification, Expression Analysis and Cloning of Capsicum chinense BCAT Gene Family]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The purpose of this study is to understand the distribution, properties and expression patterns of members of the BCAT (Branched-chain Aminotransferase) gene family, so as to lay a foundation for further research on the function of Capsicum chinense Jacq BCAT genes. C. chinense is one of the five main cultivars of pepper. Its fruit usually has a strong fruity aroma formed by branched chain esters. BCAT is responsible for catalyzing the synthesis of corresponding 2-oxo acids from branched-chain amino acids, and is the first reaction enzyme to catalyze the synthesis of branched-chain esters. 【Method】The BCAT gene family members of C. chinense were identified, expressed and cloned using bioinformatics analysis and real-time quantitative PCR. 【Result】Five members of the BCAT gene family were obtained and named as CcBCAT1~CcBCAT5, and then bioinformatics analysis and CcBCAT1-CcBCAT4 cloning were performed on them. Bioinformatics analysis showed that these genes were distributed on the four chromosomes of pepper, and the proteins were all hydrophilic proteins with amino acid lengths ranging from 184 aa to 557 aa, molecular weights ranging from 20.29 ku to 89.60 ku, and isoelectric points ranging from 5.57~8.34. Subcellular localization prediction results showed that CcBCAT1 was located in chloroplast and mitochondria, and other gene family members were located in chloroplast. The spatiotemporal expression analysis of CcBCATs genes showed that CcBCAT1-4 genes had tissue expression specificity. The regular expression of CcBCAT4 gradually increased with the maturity of pepper, and the accumulation trend of branched-chain amino acid derivatives related to pepper fruit was similar. CcBCAT5 was not detected. 【Conclusion】In conclusion, this study clarified the expression pattern of the BCAT gene family in Chinese pepper, speculated that CcBCAT4 was involved in the synthesis of secondary metabolites related to pepper fruit.]]></description>
<pubDate>2023/2/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XIE Bingchun1,2, HUANG Junlin1,2, WEN Songsen2, LI Tao2, LI Ying2, XU Xiaowan2, XU Xiaomei2, WU Zhiming1, HENG Zhou2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XIE Bingchun1,2, HUANG Junlin1,2, WEN Songsen2, LI Tao2, LI Ying2, XU Xiaowan2, XU Xiaomei2, WU Zhiming1, HENG Zhou2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212004&flag=1]]></guid><cfi:id>42</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different LED Light Qualities on Plant Growth and Flower Traits of Chrysanthemum Ping Pong]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Due to the instability of flower color and some other growth traits of chrysanthemums growing in high temperature environment in South China, effective LED light combinations were investigated to regulate the growth and flower color of chrysanthemums in order to provide theoretical references of LED light cultivation technology for the production of chrysanthemums.【Method】Different LED light combination treatments of RBFR (the photosynthetic photon flux density PPFD ratio of red ∶ blue ∶ far-red light ≈ 10 ∶ 7 ∶ 2.5), RBUV (red ∶ blue ∶ ultraviolet light ≈ 10 ∶ 6 ∶ 0.5) and WB (white ∶ blue ≈ 10 ∶ 4.8) were performed on 35-day-old potted seedlings of commercially popular chrysanthemum cultivars of ‘Pink Ping Pong’and Purple Ping Pong, the LED white light treatment was used as the CK group, the total light intensity of each group was set to be about 240 μmol·m-2s-1, and all treatments lasted for 80 days. The changes of growth trait indicators of the chrysanthemums growing from seedling to mature flowering were observed and photographed.【Result】(1) Compared with CK group, the plant heights of 80-day-treatment Pink Ping Pong and 70-day-treatment Purple Ping Pong under RBFR treatment increased by 18.3% and 27.3% respectively, the stem thicknesses increased by 14.1% and 38.1% respectively, the petiole lengths increased by 0.4% and 34.8% respectively; and the mean values of leaf length, leaf width, leaf fresh weight and leaf dry weight of the 70-day-treatment Purple Ping Pong under RBFR treatment were 18.6%, 5.8%, 25.6% and 45.5% higher than those of CK group, respectively; values of the above growth trait indicators were the highest among all treatment groups. (2) In terms of flowering trait indicators of the 70-day-treatment Ping Pong, mean values of peduncle length, peduncle diameter, petal length and petal width of the top capitulum and diameter of side capitulum of ‘Pink Ping Pong’under WB treatment were the highest among all treatment groups, which were 4.5%, 2.3%, 10.9%, 17.3%, and 19.1% higher than those of CK group respectively, and the petals were of the most pink color. At the same time, Purple Ping Pong of WB group had the largest flower diameter and the petals were of the most purple color. In addition, RBFR treatment was the second most effective in improving flower traits, and peduncle length of the side capitulum of Pink Ping Pong was the longest among all treatment groups, which was 28.3% longer than that of CK group; mean values of number of buds, number of expended capitulums, peduncle length of side capitulum, petal length and petal width of the largest capitulum were also the highest among all treatment groups, which were 32.3%, 15.0%, 38.4%, 5.8% and 12.8% higher than those of CK group respectively; in addition, RBFR treatment also resulted in the early opening of capitulums of Chrysanthemum ‘Ping Pong’. (3) The growth traits of Chrysanthemum Ping Pong under RBUV treatment were not significantly different from those of CK group, but the number of leaves and the SPAD value of leaves increased, and the ratio of leaf dry weight were significantly increased, however, the decrease of Fv/Fm value decreased was larger than that of other groups and the flower quality decreased obviously.【Conclusion】It can be seen that RBFR treatment can significantly promote the vegetative growth and pe duncle length of the side capitulum of Chrysanthemum Ping Pong, and result in the early opening of the capitulums. Meanwhile, WB treatment significantly improves the flower quality. Therefore, the two LED light combinations can provide a reference for people to use artificial lights to improve the planting quality of chrysanthemums in the future.]]></description>
<pubDate>2023/2/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LUO Honghui1, WU Qing1, HOU Junxiao2, LI Zeyu1, LI Jingwen2,WANG Fenglan1, ZHOU Hougao1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LUO Honghui1, WU Qing1, HOU Junxiao2, LI Zeyu1, LI Jingwen2,WANG Fenglan1, ZHOU Hougao1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212005&flag=1]]></guid><cfi:id>41</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Endophytic Fungi on Seedling Growth and Phosphorus  Uptake of Mytilaria laosensis Under Phosphorus Stress]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was conducted to explore the effects of endophytic fungi on phosphorus uptake in Mytilaria Laosensis seedlings under low phosphorus stress, and to select the endophytic fungi that could promote the growth and phosphorus uptake in M. Laosensis seedlings. 【Method】Taking M. Laosensis seedlings as the research object, 10 strains (M1, M2, M3, M4, M5, M6, M7, M8, M9, M10) were inoculated by the method of irrigating bacterial solution. Fifteen days later, low phosphorus stress test (18, 12, 6 ,0 mg/kg) was conducted, after sixty days of low phosphorus stress, the height and ground diameter, the root dry weight and the phosphorus content of the shoots and roots of plants, the acid phosphatase activity in leaves and roots and rhizosphere soil were measured to explore the growth and phosphorus uptake of M. Laosensis.【Result】With the increase of stress degree, strain M9 and M10 could increase the height, ground diameter and root-shoot ratio of M. Laosensis and promote its growth. Under normal conditions and severe stress, strain M6 could effectively increase the phosphorus content in shoot of M. Laosensis by 36. 9% and 41. 1%, respectively. With the increase of stress degree, strain M9 had a more prominent effect and strain M4 could significantly increase the phosphorus content in the root of M. Laosensis, which increased by 57.7% under severe stress. Under severe stress, both strains M6 and M9 could significantly increase the acid phosphatase activity in leaves of M. Laosensis and soil; except for mild stress, the acid phosphatase activity of the root system of M. Laosensis treated with the strain was significantly higher than that of CK.【Conclusion】Under soil phosphorus stress, inoculation of endophytic fungi has a significant effect on the growth and phosphorus uptake of M. Laosensis. Under different stress environments, strains M6 and M9 can increase phosphorus content, acid phosphatase activity and superoxide dismutase activity in M. Laosensis to a certain extent and promote seedling growth efficiently.]]></description>
<pubDate>2023/2/6 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SHEN Wen1, 2, ZOU Bingzhang3, LIN Nengqing3, DAI Tiantian1, LIN Han1, 2, HONG Yonghui4, LIN Jingquan3, XIE Anqiang1, 2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SHEN Wen1, 2, ZOU Bingzhang3, LIN Nengqing3, DAI Tiantian1, LIN Han1, 2, HONG Yonghui4, LIN Jingquan3, XIE Anqiang1, 2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202212006&flag=1]]></guid><cfi:id>40</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress and Propect of Mustard Breeding]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210002&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Mustard (Brassica juncea L.) is an important vegetable crop in China with a wide cultivation area and a 
long history of cultivation. With the increasing improvement of people’s living standard and the changes in environmental 
conditions, new requirements for the quality and resistant varieties of mustard have been put forward. A large number of 
scientific researchers have completed the collection, conservation and gene function mining of a considerable amount of 
mustard germplasm resources, and have conducted researches on breeding and molecular biology, which has made great 
contributions to the improvement of mustard varieties. China is rich in mustard germplasm resources. There are many local 
varieties, and these local varieties are often faced with the problems of degradation of variety and quality defects after years of 
self-retaining, and how to improve these local varieties has become an urgent problem. This review describes the advanced breeding methods of mustard and their principles and the research results obtained. Advanced breeding methods mainly include 
mutagenesis breeding techniques, distant hybrid breeding techniques, transgenic breeding techniques, gene editing breeding 
techniques and molecular marker-assisted breeding techniques. The use of these advanced breeding techniques has not only 
made many achievements in changing the resistance, quality and adaptability of mustard varieties, but also helped to construct 
sterile lines to serve mustard cross breeding. In addition, this review also provides an outlook on the future research directions of 
mustard breeding in order to provide a theoretical basis and practical basis for the breeding of local special mustard varieties.]]></description>
<pubDate>2022/11/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FU Mei1
, CHEN Gang2
, TANG Kang1,3, JIANG Shizheng1,3, LUO Wenlong1
,
LI Guihua1
, GUO Juxian1
, LUO Shanwei1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FU Mei1
, CHEN Gang2
, TANG Kang1,3, JIANG Shizheng1,3, LUO Wenlong1
,
LI Guihua1
, GUO Juxian1
, LUO Shanwei1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210002&flag=1]]></guid><cfi:id>39</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Resistance Evaluation and Genetic Diversity Analysis of Phytophthora Disease in Pepper Germplasm Materials]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study was carried out to understand the Phytophthora disease resistance and genetic 
diversity of pepper germplasm materials, and to provide references for the establishment of core pepper germplasm bank 
and improvement of pepper Phytophthora disease resistance breeding.【Method】The Phytophthora disease resistance of 
96 pepper germplasm materials was evaluated by using modified root irrigation inoculation method and the genetic diversity 
of them with 20 SSR molecular markers selected from the whole genome were analyzed. 【Result】The results show that 
there was only 1 immune material, 6 highly resistant, 24 resistant, 53 susceptible and 12 highly susceptible materials among the 96 materials, which were basically consistent with the field performance. The results of genetic diversity analysis showed 
that a total of 79 alleles were detected among 20 SSR markers, with 2-9 alleles per marker and an average of 3.95 alleles. 
Shannon’s index ranged from 0.2992 to 1.9893, with an average of 0.9513, indicating that the genetic polymorphism of the 20 
SSR molecular markers selected was high. Nei’s genetic diversity index ranged from 0.1614 to 0.8440, with an average of 0.5259, 
indicating high genetic diversity among materials. Cluster analysis results showed that the tested materials could be divided into 
three groups at the genetic distance of 0.37, including 3, 14 and 79 materials, respectively. Additionally, the genetic distance 
among 8 groups of materials was close to 0. 【Conclusion】The improved root irrigation inoculation method is suitable for 
the identification of pepper Phytophthora disease, and the results are basically consistent with those of the field performance. 
Moreover, it is more convenient. The genetic polymorphisms of the 20 SSR molecular markers selected are high and suitable 
for genetic diversity analysis of pepper germplasms. The 96 pepper germplasm materials are rich in resources, but there are 
homogeneous materials, and some materials should be discarded properly during germplasm preservation.]]></description>
<pubDate>2022/11/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Xiaomei1
, LI Ying1
, SUN Qidi2
, XU Xiaowan1
, HENG Zhou1
, LI Tao1
, WANG Hengming1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Xiaomei1
, LI Ying1
, SUN Qidi2
, XU Xiaowan1
, HENG Zhou1
, LI Tao1
, WANG Hengming1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210003&flag=1]]></guid><cfi:id>38</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Evaluation on the Ability of Chrysanthemum Cultivars Applied to Flower Sea Landscape in Lingnan Area]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To establish a comprehensive evaluation system for Chrysanthemum cultivars applied to 
flower sea landscape, taking the “2021 Xiaolan Chrysanthemum Festival” in Zhongshan City, Guangdong as an example, 
the Chrysanthemum cultivars that can be planted in the open air and suitable for the configuration of flower sea landscape in Lingnan area are screened out.【Method】Flower sea planting, observation and statistical analysis of cultivation and 
ornamental characters, and tourist questionnaire survey were carried out on 31 commonly used Chrysanthemum cultivars in 
Lingnan, and a comprehensive evaluation system of the Chrysanthemum cultivars applied to flower sea was constructed by 
using Analytic Hierarchy Process (AHP).【Result】According to the weight values of the evaluation indicators, it is found 
that the growth vigor, flower color, survival rate and flowering uniformity are the key indicators that affect the application of 
Chrysanthemum cultivars to the flower sea landscape. The 31 Chrysanthemum cultivars are divided into 4 grades according 
to the total score (Ri
) of the comprehensive evaluation: 10 Chrysanthemum cultivars of grade Ⅰ (Ri
≥4.0) are most suitable for 
application in flower sea landscape, 11 Chrysanthemum cultivars of grade Ⅱ (3.6≤Ri
<4.0) are suitable, 5 Chrysanthemum
cultivars of grade Ⅲ (3.0≤Ri
<3.6) are less suitable, and 5 Chrysanthemum cultivars of grade Ⅳ (Ri
<3.0) are not suitable.
【Conclusion】Ten Chrysanthemum cultivars including Jinwu, Hongxique, Baertasa, Banlihuang, Lvanna, Huang’anna, 
Hongpingpang, Fenshuijing, Huangshuijing and Xinghuo are screened out and most suitable for flower sea landscape. And 11 
Chrysanthemum cultivars such as Baianna, Hongshuijing, Fenpingpang, Shuijingfen, and Lvpingpang are suitable for flower sea 
landscape. These cultivars show excellent overall traits, which are suitable for Chrysanthemum flower sea planting in Lingnan area.]]></description>
<pubDate>2022/11/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DAI Nan1
, LUO Honghui1
, QIU Minde2
, WU Qing1
, HE Peilei2
, LI Ling3
, ZHOU Hougao1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DAI Nan1
, LUO Honghui1
, QIU Minde2
, WU Qing1
, HE Peilei2
, LI Ling3
, ZHOU Hougao1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210004&flag=1]]></guid><cfi:id>37</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Breeding of a New Hybrid Cymbidium Variety Yuqinglan]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】To carry out cross breeding of high-quality Hybrid Cymbidium by using Hybrid Cymbidium
germplasm resources, observe the performance of main target traits of offspring, and obtain new Hybrid Cymbidium varieties that 
meet the requirements of target traits.【Method】With Cymbidium sinense Yunv and C. lancifolium Wen Yin-1 as parents, 
conventional hybridization and seed culture of Hybrid Cymbidium were carried out. The characters of hybrid offspring were 
investigated and analyzed, and compared with their parents and control varieties Moye Amethyst.【Result】A new excellent Hybrid Cymbidium variety Yuqinglan was bred through the mixed selection breeding program. The collective hybrid was registered 
in the British Royal Horticultural Society under the name of Cymbidium SCAU Love Song. The results of variety comparison and 
many years of multi-point experiments show that Yuqinglan has compact plant type, erect leaves, erect inflorescences, 9.5 flowers 
on average, yellow white flowers with light fragrance, 5.6 cm in horizontal diameter and 5.9 cm in vertical diameter. It is cultivated 
in simple greenhouses in Guangzhou, and starts to flower in late December. Its single flower life is 30 days, and its ornamental 
period is 50 days. It is different from its parents in plant type, leaf type, and flower type, and its ornamental period is better than 
their parents, and it is more ornamental and disease resistant than the control Moye Amethyst, and it also has the characteristics 
of continuous flowering and forming flower lateral branches, which is the first report on orchids.【Conclusion】The new excellent 
Hybrid Cymbidium variety Yuqinglan, which has been bred through cross breeding and innovative improvement methods, has good 
characters and strong ornamental ability, and has broad prospects for popularization and application.]]></description>
<pubDate>2022/11/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Xiangni1
, XIE Li2
, ZHANG Jing1
, TIAN Ruijun1
, GUO Herong2
,
WEI Qian2
, ZHANG Zhisheng2
, ZENG Ruizhen2
, ZHOU Zhiyan1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Xiangni1
, XIE Li2
, ZHANG Jing1
, TIAN Ruijun1
, GUO Herong2
,
WEI Qian2
, ZHANG Zhisheng2
, ZENG Ruizhen2
, ZHOU Zhiyan1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210005&flag=1]]></guid><cfi:id>36</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress of Chloroplast Genome in Lagerstroemia spp.]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[There are about 60 species of Lagerstroemia in the world, and more than 500 species have been cultivated. 
Lagerstroemia species is an excellent garden ornamental plant. In addition to bright color and the characteristics of air 
purification, it has important value in garden and horticultural applications. At present, due to the frequent interspecific 
hybridization and gene introgression, the morphological classification system can not satisfy the genetic diversity study of 
Lagerstroemia. With the development of modern biotechnology, studies based on chloroplast genome have shown obvious 
advantages in the study of species relationship. DNA fragments and simple repeat sequences extracted from chloroplast 
genomes are often used as molecular markers for identification and classification of plants. So far, the chloroplast genomes of 
22 species of Lagerstroemia have been sequenced. The phylogenetic relationships of 22 species of Lagerstroemia have been 
analyzed by Bayes’ method, and 22 species of Lagerstroemia are monophyletic groups. It is concluded that the chloroplast genome size is about 150 kbp, the largest is L. venusta with a length of 152 521 bp, and the smallest was L. guilinensis with a 
length of 151 968 bp. The length of LSC region is 83-84 kbp, the length of SSC region is 16 kbp, the length of IR region is 25 
kbp, and the content of GC in chloroplast genome is 37.6%-37.7%. The research reviews the structure of chloroplast genome 
of Lagerstroemia and its application in DNA barcoding, SSR and phylogeny in order to understand the research status of the 
chloroplast genomes of Lagerstroemia and improve the evaluation and understanding of the application of Lagerstroemia
in landscape architecture. It will lay a foundation for further research on germplasm resources identification, genetics and 
phylogeny of Lagerstroemia based on chloroplast genome and provide data support for breeding more Lagerstroemia plants 
used in garden sightseeing.]]></description>
<pubDate>2022/11/29 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HUANG Jianrui1
, CHEN Tao2
, MIAO Shenyu1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HUANG Jianrui1
, CHEN Tao2
, MIAO Shenyu1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202210006&flag=1]]></guid><cfi:id>35</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different Types in Nutrients on Seedling Growth and Root Development of Barthea barthei]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307012&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Barthea barthei (Hance ex Benth.) Krass. is a unique shrub of the genus Barthea in Melastomataceae in China, which has important ornamental value. However, it is mainly distributed in the wild, and its artificial cultivation technology system has not been fully established, which greatly limits its application potential as a landscape plant. In this study, by comparing the effects of different types in nutrients and different application concentrations on the growth and root indexes of the seedlings, the main nutrient dosage affecting the growth of the seedlings was determined, providing a scientific basis for the cultivation of the seedlings.【Method】 The tissue culture seedlings of B. barthei were used as materials, and they were transplanted into the seedling cups with yellow soil as the cultivation substrate.After 3 months’ culture, 6 kinds of N nutrients (Glutamic acid, Alanine, Aspartic acid, Compound fertilizer, Urea, Controlled-released fertilizer) and 3 kinds of application amount (0.7, 1.4 and 2.8 mg/plant) were applied respectively. The seedling height and chlorophyll content of B. barthei were measured monthly, and the root indexes of B. barthei was measured after the experiment. 【Result】Nutrient type and application amount had significant effects on the early growth and development of B. barthei seedlings. The highest increment of seedling height was 5.18±0.13 cm after 1 month of treatment with T9 (Aspartic acid, 2.8 mg/plant ). The increment became smaller after 4~5 months. The seedling height increment of seedlings treated with T5 (Alanine, 1.4 mg/plant) was not significantly different from that of the control in the first 2 months, but it was much higher than that of the control after the 4th and 5th months. The increment of seedling height of T18 (Controlled-released fertilizer, 2.8 mg/plant) was the largest after 4 and 5 months. The root biomass of T14 (Urea, 1.4 mg/plant ), T9 (Aspartic acid, 2.8 mg/plant ) and T15 (Urea, 2.8 mg/plant ) were the largest, which were 0.71 (±0.40) g, 0.65 (±0.21) g and 0.64 (±0.24) g, respectively. The root surface area with diameter less than or equal to 2 mm under T9 treatment was 273.63 cm2, which was significantly higher than that under other treatments.【Conclusion】Considering the seedling height and root index of root surface area with diameter ≤ 2 mm, the best nutrient for the early stage of B. barthei growth was Aspartic acid with the amount of 2.8 mg/plant.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Xiaohui, SANG Xiandong, YANG Huixiao, LIAO Huanqin, LIN Xiaoying, CHEN Xinyu, PAN Wen, ZHANG Weihua, XU Bin]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Xiaohui, SANG Xiandong, YANG Huixiao, LIAO Huanqin, LIN Xiaoying, CHEN Xinyu, PAN Wen, ZHANG Weihua, XU Bin</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307012&flag=1]]></guid><cfi:id>34</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Comprehensive Evaluation on the Landscape Application Ability of 60 Begonia Species/Cultivars in Shenzhen]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307013&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】A comprehensive evaluation system was constructed to screen the Begonia species / cultivars that can be cultivated in open air and suitable for landscape application in Shenzhen. 【Method】Based on the observation and statistics of 16 traits of 60 Begonia species / cultivars, a comprehensive evaluation system was established from three aspects of ornamental, adaptability and open cultivation performance by using Analytic Hierarchy Process (AHP). The comprehensive evaluation score of each species/cultivars was calculated by multiplying the score of each evaluation factor of Begonia by the weight value, and 60 species of Begonia were divided to four grades (I~ Ⅳ ) according to the comprehensive evaluation scores. 【Result】 The evaluation results showed 20 Begonia species/cultivars, including B. ‘Pinafore’, B. ‘Ricinifolia’, B. ‘Tiger kitten’, B. ‘Cool Breeze Glacier’, B. U400, B. heracleifolia var. nigricans, B. nelumbiifolia, B. rex, B. Ningming ‘Silver’, B. ‘Painter’s Palette’, B. ‘Cleopatra’, B. ‘First Blush’, B. ‘Mirage’, B. ‘Curly Sue’, B. wangii, B. ‘St. Nick’, B. ‘Palomar Prince’, B. ‘Autumn ember’, B. ‘Daisy’, B. longiciliata were grade I, and they were recommended for priority promotion and application in Shenzhen gardens. Nineteen Begonia species/cultivars were grade Ⅱ, accounting for 31.67%, which were suggested to be popularized in Shenzhen. Fiveteen Begonia species/cultivars were grade Ⅲ, accounting for 25.00%, which could be used as alternative varieties. B. chloroneura, B. cathayana, B. burkillii, B. umbraculifolia, B. foliosa, B. santos-limae were grade IV, and which were not recommended.【Conclusion】Through the constructed comprehensive evaluation system, the application forms of edging plants, vertical greening, ground cover, ecological tanks, themed plant exhibitions, flower borders, flower beds and so on were practiced, and 20 Begonia species/cultivars with good ornamental, strong adaptability and excellent open-air planting performance were selected, which were suitable for application in Shenzhen gardens, so as to provide a reference for the popularization and application of Begonia plants in gardens and the selection of plant configuration.]]></description>
<pubDate>2023/9/20 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Guihong, YANG Leilei, LI Lingfei]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Guihong, YANG Leilei, LI Lingfei</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202307013&flag=1]]></guid><cfi:id>33</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Grey Relational Analysis on Yield-Related Traits of Wild Germplasm Resources of Hevea brasiliensis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202306004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 Natural rubber is an important industrial raw materials and strategic materials, and played a 
very important role in national economic development. As a resource constraint industry, it was mainly produced by Brazilian 
rubber tree (Hevea brasiliensis) and it has the highest yield and the best quality among the mankind known rubberproducing plants. Harvesting latex is the main economic purpose of Brazilian rubber tree, latex yield is a quantitative trait 
controlled by minorgene, with many influencing factors, and its phenotypic value is affected by heredity and environmental effect. To determine the relationship among the yield and agronomic traits of the wild germplasm resources of Hevea 
brasiliensis, this study provides a scientific basis for the evaluation and screening of rubber tree germplasm resources and the 
selection and breeding of new varieties. 【Method】The yield, growth and other related agronomic traits of 13 wild germplasm 
resources of Hevea brasiliensis planted in the experimental field of Chinese Academy of Tropical Agricultural Sciences (CATAS) 
were studied and analyzed by grey relational analysis.【Result】The results showed that the association order of the eight main 
agronomic traits related to the dry rubber yield per plant were stem girth, dry rubber c ontent, average number of laticifer cells, 
average number of laticifer columns, bark thickness, mean stem girth increment, lateral vein latex grade and gum value ratio, 
and the weights of each trait were 0.1380, 0.1338, 0.1322, 0.1264, 0.1205, 0.1182, 0.1178, 0.1143. In summary, stem girth, dry 
rubber content, quantity of laticifers bark thickness and other traits are closely related to and have a great impact on dry rubber 
yield per plant.【Conclusion】Among the main agronomic traits, the stem girth, dry rubber content and quantity of laticifer 
should be paid more attention on the evaluation of rubber tree germplasm resources, at the same time the potential impact of 
other traits on yield also need to be laid some stress on.]]></description>
<pubDate>2023/8/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HU Yanshi, ZHOU Shijun, LIU Xiaodong, TU Min, ZENG Xia]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HU Yanshi, ZHOU Shijun, LIU Xiaodong, TU Min, ZENG Xia</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202306004&flag=1]]></guid><cfi:id>32</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Rhizosphere NaCl Concentration on Morphology and Physiology of Mesembryanthemum crystallinum L.]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202306005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】This study aimed to investigate the effects of rhizospheric NaCl concentration on the 
morphology and physiology of Mesembryanthemum crystallinum L. and determine the suitable NaCl concentration for 
it’s hydroponic cultivation in plant factories, providing references for production management.【Method】Crystal M. 
crystallinum L. seeds were used as material, and the Japanese garden general formula was selected for cultivation in nutrient 
solution under artificial light. With no NaCl added as the control (CK), NaCl was added to the final concentration of 3 g/L 
(T1), 6 g/L (T2), 9 g/L (T3), 12 g/L (T4), respectively. After 21 days of NaCl treatment, the morphological and physiological 
indicators were analyzed, and the proportion of epidermal salt vacuole area and the number of epidermal salt vacuoles were 
counted, so as to analyze the relationship between NaCl concentration and the morphology and physiology of M. crystallinum
L..【Result】From the perspective of morphological indicators and biomass, there were no significant differences in plant height, stem thickness, leaf area, root fresh weight and shoot fresh weight compared to the CK when M. crystallinum L. was 
grown in a nutrient solution with a NaCl concentration of 3 g/L. In the nutrient solution with a NaCl concentration of 6 g/L, 
M. crystallinum L. showed significantly increased in plant height, root fresh weight and shoot fresh weight compared to the 
CK, indicating a certain promotion effect on the growth of M. crystallinum L.. However, in the nutrient solutions with NaCl 
concentrations of 9 g/L and 12 g/L, M. crystallinum L. exhibited a decreasing trend in plant height, stem thickness, leaf area, 
and shoot fresh weight with significant differences compared to the CK. This suggests that the growth of M. crystallinum L. is 
inhibited in nutrient solutions with NaCl concentrations of 9 g/L and 12 g/L. In terms of physiological indicators, the protein 
content, soluble sugar content, and chlorophyll SPAD value of M. crystallinum L. increased with increasing NaCl concentration, 
reaching the highest levels in the nutrient solution with a NaCl concentration of 12 g/L, with increases of 50.2%, 119.5%, and 
77.9% compared to the CK, respectively. Regarding the epidermal salt vacuole indicators, both the proportion of epidermal salt 
vacuole area and the number of epidermal salt vacuoles increased with increasing NaCl concentration, reaching the maximum 
values in the nutrient solution with a NaCl concentration of 12 g/L, with increases of 54.9% and 182.1% compared to the CK, 
respectively.【Conclusion】The optimal NaCl concentration for hydroponic cultivation of M. crystallinum L. in plant factories 
falls within the range of 3-6 g/L.]]></description>
<pubDate>2023/8/17 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FU Tingting, WANG Hao, ZHAO Ying, WANG Weilan, WANG Xu]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FU Tingting, WANG Hao, ZHAO Ying, WANG Weilan, WANG Xu</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202306005&flag=1]]></guid><cfi:id>31</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Correlation Analysis and Primary QTL Mapping of Fruit Traits in Plum]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In this study, the F1 population of two cultivars of plum (Prunus salicina L.) in Northeast China, Jilin 6 and Longyuanqiuli, were used as research materials, and the correlation analysis and QTL mapping of six fruit traits (weight of single fruit, transverse diameter of fruit, vertical diameter of fruit, fruit shape index, thickness of pulp and content of total sugar ) were carried out. 【Method】SPSS 23.0 software was used to analyze the phenotype and correlation of 6 fruit traits. QTL analysis of fruit traits with normal distribution was carried out by Map QTL 5.0 software. QTL was located according to interval mapping method. Finally, the linkage group of QTL was mapped by Map Chart 2.3 software.【Result】The variation coefficient of 6 fruit traits was 6.09%-35.98%. The phenotypic data of transverse diameter of fruit, vertical diameter of fruit and thickness of pulp showed normal distribution. There was a significant positive correlation between weight of single fruit and transverse diameter of fruit, and the correlation coefficient was 0.959. The transverse diameter of fruit was significantly positively correlated with vertical diameter of fruit and thickness of pulp. There was a significant or extremely significant negative correlation between content of total sugar and other indicators. A total of 11 QTLs related to fruit traits were detected, including 4 QTLs related to transverse diameter of fruit, 4 QTLs related to vertical diameter of fruit, and 3 QTLs related to thickness of pulp. All QTLs were distributed on linkage groups LG2, LG3, LG8 and LG15. Among them, 3 
QTLs related to fruit traits were detected on linkage groups LG2, LG3 and LG15. The LOD values were 2.46-3.58, which could explain 9.8%-14.4% of phenotypic variation.【Conclusion】There were correlations among the fruit traits of plum in Northeast China, and there were clusters of QTLs loci on linkage groups, which provided a theoretical basis for molecular assisted breeding of plum in cold region.]]></description>
<pubDate>2023/7/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SUN Lili1, PENG Lina1, MU Yunhui2, YE Wanjun2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SUN Lili1, PENG Lina1, MU Yunhui2, YE Wanjun2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305005&flag=1]]></guid><cfi:id>30</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different LED Light Quality Ratio and Light Intensity on Tissue Culture of A New Anthurium andraeanum Cultivar Fuxing]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】 The light condition is one of the key factors that affect the tissue culture efficiency of Anthurium andraeanum. The effects of different LED light quality ratio and light intensity on different stages of A. andraeanum tissue culture were studied to explore these light conditions suitable for each stage of tissue culture of A. andraeanum and provide an important technical reference for efficient tissue culture of A. andraeanum. 【Method】The new A. andraeanum cultivar Fuxing was used as the experimental material, and the effects of different proportions of red and blue LED light ratio and light intensity on callus induction, proliferation culture and strong seedling culture of A. andraeanum Fuxing were analyzed. 【Result】 The LED red light quality was more suitable for the callus induction of A. andraeanum Fuxing, the 10% R light quality condition with light intensity of 100 lx had the highest callus induction rate of 79.58%, and the callus mass was yellow-green, compact, large in volume and good in state, which was suitable for the callus induction of A. andraeanum Fuxing leaves. The light quality ratio of R ∶ B = 3 ∶ 1 was suitable for callus proliferation culture of A. 
andraeanum Fuxing, and the proliferation coefficient was the highest (6.44) when the light intensity was 600 lx. Compared with WL light conditions, R ∶ B = 4 ∶ 1 light quality ratio was more suitable for the callus bud differentiation culture of A. andraeanum Fuxing, when the light intensity was 1 000 lx, the number of callus proliferation and differentiation was 19.44, and the buds were short and strong with good growth potential, without yellow leaf phenomenon. The light quality ratio suitable for the tissue culture seedling culture of A. andraeanum Fuxing at the strong seedling stage was R∶B = 4∶1, the light intensity was 900 lx, the number of roots of the strong seedlings of was more, with an average of 5.67, the plant height was 2.88 cm, the stem diameter was 1.44 mm, the leaf length was 11.69 mm, the leaf width was 8.54 mm, the plant leaf was large, the SPAD value was 39.23, the chlorophyll content of the leaf was higher, and the overall growth of the plant was robust without yellow leaf phenomenon. 【Conclusion】 LED light conditions have an impact on callus induction, proliferation culture, and strong seedling culture of A. andraeanum Fuxing in tissue culture. According to the lighting requirements at different stages of A. andraeanum tissue culture, selecting appropriate LED light quality ratio and light intensity conditions can effectively improve the callus induction rate, proliferation rate and tissue culture seedling production quality of A. andraeanum in tissue culture, and provide technical support for the efficient and standardized production of new A. andraeanum cultivar Fuxing.]]></description>
<pubDate>2023/7/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[GU Mengyun, ZENG Weida, SU Qinglian, HUANG Mingchi, FENG Xiaomei, LIU Yanyan, ZHANG Xuelian, ZHOU Xiaoyun]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>GU Mengyun, ZENG Weida, SU Qinglian, HUANG Mingchi, FENG Xiaomei, LIU Yanyan, ZHANG Xuelian, ZHOU Xiaoyun</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305006&flag=1]]></guid><cfi:id>29</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Breeding Series of Hybrid Varieties (GL22) for Heading Cabbage]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】According to the market’s demand for taste-type and fresh-eatable cabbage,more varieties of cabbage with good characters and in line with market supply and demand were selected by using its own germplasm resources.【Method】Using 13 Ougra sterile heading cabbage materials selected by the team as female parents and 10 inbred lines heading cabbage materials (GL14000-14009) as male parents, 14 heading cabbage hybrid combinations were prepared through hybridization, the experiments were compared and screened from the aspects of plant width, outer leaf number, longitudinal diameter, transverse diameter, central column length, yield and disease resistance.【Result】After comparison, GL22-02, GL22-06, GL22-11 and GL22-13 were obtained, and their agrtural traits, quality and yield were better 
than those of the control Tejia No. 2. All the leaf bulbs were round, and the petiole-leaf ratio was 26.9%, 20.8%, 23.1% and 16.8%. It was better than that of control variety (31.3%). Leaf bulb compactness was 0.76, 0.73, 0.59 and 0.62 g/cm3, which was more than 0.16 g/cm3 higher than that of the control variety. The central column length was less than half of the leaf bulb height, 4.9, 4.3, 4.8 and 4.6 cm, respectively. The moisture contents were 93.22%, 94.17%, 93.75% and 93.61%, protein contents were 1.51%, 1.28%, 1.39% and 1.36%, respectively. The soluble sugar content were 5.61%, 5.69%, 5.56% and 5.84%, respectively, which were 0.14-0.37 percentage point higher than that of the control variety. The crude cellulose content were 0.61%, 0.71%, 0.69% and 0.67%, respectively, which were 0.08-0.18 percentage point lower than that of the control variety. The vitamin C contents were 682.3, 687.1, 699.1 and 682.3 mg/kg, respectively, which were 48.4-65.2 mg/kg higher than the control variety. After edible quality identification, four hybrid materials of heading cabbage were selected, the leaf balls were raw (fresh) to eat, crisp texture, sweet taste. The black rot disease resistance of the composite materials was high (HR), the same as that of the control.The yield was 4.80%, 8.46%, 10.97% and 8.46% higher than that of control Tejia No. 2.【Conclusion】The four composite materials GL22-02, GL22-06, GL22-11 and GL22-13 were selected. They both had agronomic and economic characters, which can be used for production demonstration in large scale.]]></description>
<pubDate>2023/7/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Xuezhong1, ZHANG Liqin1, HU Jingfeng1, YANG Hongli1, LAN Mei1, YANG Ding2, LI Chongjuan2, HE Jiangming1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Xuezhong1, ZHANG Liqin1, HU Jingfeng1, YANG Hongli1, LAN Mei1, YANG Ding2, LI Chongjuan2, HE Jiangming1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202305007&flag=1]]></guid><cfi:id>28</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Genetic Variations of AUF2 Gene and Their Association with Agronomic Traits in Flowering Chinese Cabbage]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】By detecting the natural variation of Auxin Up-regulated F-box protein2 (AUF2) gene and exploring the elite alleles associated with agronomic traits in order to provide theoretical references for molecular marker assisted breeding of flowering Chinese cabbage.【Method】PCR amplification and sequencing was used to detect the natural variations in AUF2 gene among 156 flowering Chinese cabbage accessions. By using the mixed linear model (MLM) of Tassel 5.0 software, the correlation between the variation sites of AUF2 gene and six agronomic traits of flowering Chinese cabbage was analyzed, including plant height, single plant weight, maximum leaf length, maximum leaf width, maximum petiole length and chlorophyll content (SPAD), and the polymorphic sites significantly associated with agronomic traits would be identified. Then, elite alleles and excellent haplotypes were determined.【Result】Through sequencing analysis, a total of 34 mutation 
sites were detected in the 2 996 bp amplification region of AUF2 gene, including 36 haplotypes. The AUF2 gene showed high nucleotide diversity (π = 0.00503) and haplotype diversity (Hd = 0.780). Among them, 2 InDels and 26 SNPs were in the 1 498 bp upstream non-conding region, and 1 InDel and 5 SNPs were in the 960 bp coding region. No mutation sites were detected in the 538 bp downstream non-conding region. Neutral test analysis showed that Tajima’s D value, Fu and Li’s D* value, and Fu and Li’s F* value of the AUF2 gene were positive, and deviated significantly from neutral evolutionary model. One plausible reason was that flowering Chinese cabbage population was subject to balancing selection. The association analysis showed that 4 SNPs were significantly associated with at least one of the four agronomic traits, including single plant weight, maximum leaf length, maximum leaf width and maximum petiole length. The phenotypic variation of a given trait explained by each associated SNP ranged from 5.04% to 6.52%. The haplotype Hap2, which contained elite alletes of the four SNPs mentioned above, could significantly raise the single plant weight, and remarkably increase the length of the maximum petiole.【Conclusion】There are abundant variations in the AUF2 gene, which has a significant impact on the agronomic traits of flowering Chinese cabbage. These elite alleles and excellent haplotypes of AUF2 gene will benefit the genetic improvement of flowering Chinese cabbage.]]></description>
<pubDate>2023/6/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HUANG Yilin1, XU Yufu1, LI Ronghua1, LI Guangguang2, ZHANG Hua2, GUO Peiguo1, XIA Yanshi1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HUANG Yilin1, XU Yufu1, LI Ronghua1, LI Guangguang2, ZHANG Hua2, GUO Peiguo1, XIA Yanshi1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304004&flag=1]]></guid><cfi:id>27</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Water and Fertilizer Treatment on Nutrient Uptake and Yield of Chinese Flowering Cabbage under Coconut Chaff Cultivation]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aimed to investigate the effects of water and fertilizer on nutrient uptake and yield of Chinese flowering cabbage under coconut chaff cultivation, with a view to providing guidance on water and fertilizer management for Chinese flowering cabbage cultivation. 【Method】Adopting greenhouse pot experiment, three irrigation treatments were set for the Chinese flowering cabbage : I1 (55%-60% water holding capacity of the substrate in the pot), I2 (75%-80% water holding capacity of the substrate in the pot), and I3 (95%-100% water holding capacity of the substrate in the pot) and three nutrient solution levels were used: F1 (1/2 Yamazaki nutrient solution formula), F2 (1 Yamazaki nutrient solution formula) and F3 (3/2 Yamazaki nutrient solution formula), and 2 L nutrient solution of different concentrations was applied to the pots as a base fertilizer before the experiment.【Result】Compared with full irrigation treament (I3), water deficit treatments (I1 and I2) increased water use efficiency of Chinese flowering cabbage significantly by 30.2% and 16.3%, respectively, while the yield decreased by 16.7% and 11.1%, respectively. However, the irrigation amount had no significant effect on nitrogen, phosphorus and potassium (NPK) uptake of shoots. The increase of nutrient solution concentration promoted water use efficiency, NPK uptake and yield of Chinese flowering cabbage. Meanwhile, there was a significant interaction between the irrigation treatment and fertilizer treatment on the yield and NPK uptake of the Chinese flowering cabbage. Among all the treatments, I3F3 had the highest yield. Compared with I3F3, I2F3 reduced water consumption by 13.7% and improved water use efficiency by 11.8% without compromising yield and NPK uptake of Chinese flowering cabbage. And the I2F3 treatment had the highest comprehensive PCA score, indicating that I2F3 treatment had the optimal comprehensive effect on nutrient absorption, water use efficiency and yield of Chinese flowering cabbage.【Conclusion】It can be concluded that 75%-80% reduced irrigation combined with 3/2 Yamazaki nutrient solution formula is an effective measure to enhance yield, water use efficiency and nutrient uptake of Chinese flowering cabbage under coconut chaff cultivation.]]></description>
<pubDate>2023/6/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Xin, NIE Jun, LI Yanhong, ZHANG Changyuan, XIE Yuming, SHI Liangliang, ZHENG Jinrong]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Xin, NIE Jun, LI Yanhong, ZHANG Changyuan, XIE Yuming, SHI Liangliang, ZHENG Jinrong</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304005&flag=1]]></guid><cfi:id>26</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Genetic Analysis on Seed Size of Chieh-qua by Mixture Model of Major Genes and Polygenes]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Genetic analysis of major gene and polygenes was conducted on the length, width, and quality of Chieh-qua seeds to study the genetic rules of seed size and select high-quality Chieh-qua varieties.【Method】Chieh-qua inbred line J16 (big seed) was used as female parent and 18FJ5 (small seed) as male parent to hybridize, and the length, width and seed quality of F2 generation seeds were determined. What’s more, the optimal genetic model and genetic law of each trait were obtained by using the mixed model of main gene + polygene.【Result】The most suitable genetic model for Chieh-qua seed length and width was MX2-ADI-AD, that is, two pairs of additive-dominant-epistatic main genes + additive-dominant polygenes genetic model, with the main gene heritability of 87.07% and 90.79%, respectively, and the polygene heritability of both was 0. The most suitable genetic model for the quality of 30 seeds was MX1-AD-ADI, that is, a pair of additive-dominant major genes + 
additive-dominant-epistatic polygenes genetic model, with the heritability of major genes and polygenes being 79.96% and 8.73%, respectively.【Conclusion】The major gene heritability of the above traits is far greater than the polygene heritability, and the main gene inheritance is dominant. Therefore, in the process of high-quality breeding of Chieh-qua, we should pay attention to the use of 
major genes, which can be selected in the early generation.]]></description>
<pubDate>2023/6/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[GAO Yin1, PENG Jiazhu2, WANG Guoping1, QIAO Yanchun2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>GAO Yin1, PENG Jiazhu2, WANG Guoping1, QIAO Yanchun2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304006&flag=1]]></guid><cfi:id>25</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Girdling and Chemical Treatments on the Response of Longan Fruit and Layer]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The production mode of Hainan longan can be divided into natural flowering on-season longan and off-season longan induced by potassium chlorate. Reasonable fruit loading is extremely important to maintain tree vigor and avoid alternate bearing results. The fruit loading regulation modes in the production of on-season and off-season longan are greatly different. The fruit setting amount of on-season longan is great, which seriously affects the tree vigor and fruit quality, while off-season longan fruit abscission before harvest is a common phenomenon, which seriously affects the yield.Therefore, fruit thinning of on-season longan and fruit preserving of off-season longan are equally important in the production.【Method】The main cultivar Shixia longan was used as the test material, and two tests including fruit thinning of on-season longan and fruit preserving of off-season long were set. The fruit thinning effect was studied by treating the longan ears with different fruit thinning agents, and the fruit preserving effect was studied with the treatment of different fruit preserving agents after artificially induced fruit abscission of off-season longan.【Result】By tracking and monitoring the fruit abscission rate and the separation force of the pedicel abscission layer, it was found that IAA and DMTU treatments delayed fruit abscission process for 2 days, 2,4-D and NAA treatments delayed the fruit abscission process for 3 days in off-season longan, but neither of them could prevent fruit abscission. Treatment of fruit substituted by IAA completely inhibited the pedicel separation in off-season longan. Girdling treatment could induce 100% of on-season longan fruit abscission within 6 days; different concentrations of ethephon, paraquat and 100 g/L urea treatment could induce 11.88%-53.05%, 29.23% and 35.43% of fruit abscission respectively within 10 days. After 10 days, there was very little fruit abscission under urea treatment, while other treatments showed sustained fruit abscission.【Conclusion】The results show that carbohydrate stress, paraquat, ethephon and urea treatment can induce the abscission layer separation of longan pedicel, and these agents have a fruit thinning effect on onseason longan. IAA, 2,4-D, NAA, DMTU can delay the abscission layer separation of fruit pedicel, which can effectively delay the abscission of off-season longan before harvest. All the treatments that can enhance the IAA signal can play a role in fruit preserving, while all the treatments that reduce the synthesis and transport of IAA and the treatments that enhance the ethylene signal have effects on fruit thinning. Therefore, in terms of production, it is suggested that measures should be taken to thin the fruit of on-season longan as early as possible to reduce the consumption of carbohydrates and then ensure the quality and yield of the fruits. In the middle fruiting period of off-season longan, certain fruit preserving measures should be taken to ensure the accumulation of IAA in the fruit to avoid the abscission of fruits.]]></description>
<pubDate>2023/6/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Songgang, ZHANG Lei, HONG Jiwang, HE Shuqiang, YANG Ziqin]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Songgang, ZHANG Lei, HONG Jiwang, HE Shuqiang, YANG Ziqin</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202304007&flag=1]]></guid><cfi:id>24</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Bending on Shoot Growth, Flowering and Fruiting of Xianjinfeng Litchi]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Xianjinfeng litchi is a new variety introduced in recent years. It is characterized by high quality and late ripening and has significant economic and social benefits in the middle and late ripening litchi producing areas, however, its efficient and high-yield cultivation technology needs to be studied. Shoot bending is an important shaping and pruning method in orchard management, which can effectively reduce the apex dominance and facilitate flowering and fruiting. Here, the effects of different bending treatments on Xianjinfeng litchi were explored in order to provide references for the application of shoot bending technology as well as the establishment of technology for stable and high yield.【Method】Xianjinfeng litchi grafted for four years was used as the test material, and three bending treatments were set: vertical (0°, CK), horizontal (90 °) and drooping (110 °). After treatments, the indicators including growth, flowering rate, and fruit setting rate were counted. 【Result】Compared with the vertical treatment (CK), drooping and horizontal treatments had limited effects on the vegetative growth of the first and second shoots, but delayed the germination of the third shoot (the last autumn shoot) for more than seven days, and dramatically reduced germination number of shoots at the same time. In addition, drooping treatment had the strongest inhibitory effect. When the leaves of the last autumn shoot were mature, the branch diameter under bending treatments was slightly lower than that under CK, however, and there were no significant difference among all treatments. Both drooping and horizontal bending treatments could effectively control the length of the last autumn shoot to about 15 cm, promote the growth of short and medium shoots, which was conducive to flowering and fruiting. In the coming spring, the flowering rate and fruit setting rate of drooping and horizontal treatments were notably higher than those of vertical treatment (CK). The flowering rate of droop treatment reached 100%, and all of them were pure flowers with high quality, while vertical treatment (CK) produced more panicles with leaves in comparison with the other two treatments. There was no significant difference in the length of panicle among different treatments, however, the base diameter of panicle were observably reduced and vigorous growth of panicles were inhibited by bending treatments. Fifty days after blooming of pistillate flowers, the fruit setting rates under drooping and horizontal treatments were 9.81% and 7.61%, respectively, markedly higher than that under vertical treatment (CK, 5.54%).【Conclusion】For Xianjinfeng litchi, drooping and horizontal branch bending can effectively control the excessive growth of parent branches, improve the quality of flowers, and significantly increase fruit setting rate. The best results are obtained under drooping treatment (110° ).]]></description>
<pubDate>2023/5/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[JIANG Yonghua, LIU Hailun, YAN Qian, CHEN Jiezhen, SHI Fachao,WEN Yingjie, CAI Changhe, OU Liangxi]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>JIANG Yonghua, LIU Hailun, YAN Qian, CHEN Jiezhen, SHI Fachao,WEN Yingjie, CAI Changhe, OU Liangxi</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303004&flag=1]]></guid><cfi:id>23</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Dynamic Change Characteristics of Population Structure and Quantity of Kandelia obovata in Dongzhai Harnor of Hainan]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】As a common mangrove tree species in Hainan, Kandelia obovata is also a tree species widely used in mangrove ecological restoration. In recent years, global climate change and the increase of human disturbance have brought serious threats to mangrove ecosystem. Therefore, establishing fixed plots to monitor the dynamic changes of mangrove communities and populations has important research value for the protection and restoration of mangroves.【Method】The population structure characteristics and the dynamic change of the population in a fixed 1 hm2 plot in the national mangrove reserve of Dongzhai Harbor, Hainan Province were analyzed and studied.【Result】(1) The diameter class structure of the K. obovata population in the area showed an irregular pyramid shape, and the total number of individuals in the Ⅰ - Ⅳ age class accounted for 75.4% of the total number of individuals in the population, and the number of individuals in the Ⅳ age class 
decreased obviously. (2) The dynamic changes in the number of individuals in various age groups showed a trend of “recession - recession - recession - growth - growth growth - growth”. The dynamic indices Vpi and V'pi of the whole population were both greater than 0 and tend to be 0, indicating that the K. obovata population in this area was a growth population with high sensitivity to external interference, and the growth trend was not obvious when subjected to external interference. (3) In the static life table of the K. obovata population, the life expectation of the population showed a trend of decreasing gradually. (4) The survival curve fitting equation was y=2406e-0.505x, R2 = 0.962, F = 194.036, P < 0.001, indicating that the survival curve of the K. obovata population was consistent with the Deevey- Ⅲ curve. (5) Both the mortality rate and disappearance rate showed a trend of increasing first, decreasing then increasing again. The peaks of appeared in Ⅴ and Ⅸ age classes were 52%, 73% and 77%, 92%, respectively. (6) Survival analysis showed that the survival rate (Si) decreased gradually, while the cumulative death rate (Fi) increased gradually. There was a crossover point between the Ⅱ and Ⅲ age classes. The death density (fti) and the risk rate (λti) of the population showed a decreasing trend, and the death density decreased sharply between the I and Ⅱ age classes, and the minimum value of death density was 0.3% in the Ⅷ age class. (7) Time series analysis also reflected that although there were a large number of individuals at the lower age level, relatively few individuals would develop to the older age level in the future several age levels, and the majority of the future population would be individuals at the middle and older age levels.【Conclusion】The results reflect that the K. obovata population of the research area is a growing population, which is more sensitive to external interference. The dynamic change of the numberof the senior population is more stable than that of the younger population, and the population in the future will be dominated by the senior individuals.]]></description>
<pubDate>2023/5/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LYU Xiaobo, ZHONG Cairong, ZHANG Mengwen, FANG Zanshan, CHENG Cheng, CHEN Xu]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LYU Xiaobo, ZHONG Cairong, ZHANG Mengwen, FANG Zanshan, CHENG Cheng, CHEN Xu</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303005&flag=1]]></guid><cfi:id>22</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Ecological Niche Characteristics of Dominant Species of Forest Communities in the Coastal Zone of Dapeng Peninsula, Shenzhen]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】By investigating the ecological niche characteristics of the dominant species of the forest communities in the coastal zone of Dapeng Peninsula, Shenzhen, the ability and similarity of the species to use environmental resources are understood, providing a scientific basis for forest management in this area. 【Method】On the basis of the field survey, by using the calculation methods of Levins niche breadth, Shannon-Wiener niche breadth, Pianka niche overlap and niche similarity, dominant species from tree layer and shrub layer in the Egong Village sample site and Luowutian Reservoir sample site in the coastal zone were selected for niche quantitative research.【Result】In the communities of the Egong Village sample site and the Luowutian Reservoir sample site, (1) the species with the larger niche breadth in the tree layer were Litsea rotundifolia var. oblongifolia and Aporosa dioica, with Levins indices of 16.40 and 22.70, and Shannon-Wiener indices of 2.89 and 3.16, respectively; the species with the larger niche breadth in the shrub layer were Diplospora dubia and Syzygium rehderianum, with Levins indices of 19.10 and 23.97 and Shannon indices of 3.07 and 3.20, respectively. (2) The overall mean values of niche overlap in the tree layer were 0.434 and 0.641, respectively, and the species with the larger niche overlap were Ilex pubescens and Rhodomyrtus tomentosa (0.997), Psydrax dicocca and Garcinia oblongifolia (0.923); the overall mean values of niche overlap in the shrub layer were 0.441 and 0.468, respectively, and species with the larger niche overlap were Pavetta hongkongensis and Sterculia lanceolata (0.910), Aporosa dioica and Psychotria asiatica (0.959). (3) The tree species with larger niche similarity were Pavetta hongkongensis and Mallotus paniculatus (0.820), Psydrax dicocca and Garcinia oblongifolia (0.817), Rhaphiolepis indica and Diplospora dubia (0.751), Syzygium rehderianum and Psychotria asiatica (0.878).【Conclusion】In coastal zone forest communities, Litsea rotundifolia var. Oblongifolia, Diplospora duia, Syzygium rehderianum have larger ecological niche breadth. The community structure and species composition in the Egong Village sample site are in a relatively stable state, and most species in the Egong Village sample site have widely varying needs for environmental resources. Interspecific competition is more intense in the tree layer than that in the shrub layer in the Luowutian Reservoir sample site, the forest communities in this site are still in the successional stage as a whole, and the ecological niche differentiation has not yet been stabilized.]]></description>
<pubDate>2023/5/5 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHAO Qing1, LI Wenjuan2, SUN Hongbin1, LI Yifan2, GAN Xianhua2, HUANG Fangfang2, ZHANG Weiqiang1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHAO Qing1, LI Wenjuan2, SUN Hongbin1, LI Yifan2, GAN Xianhua2, HUANG Fangfang2, ZHANG Weiqiang1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202303006&flag=1]]></guid><cfi:id>21</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Suitability of Utilization of Compositional Nutrient Diagnosis on Diagnosis of Foliar Nutrient in Litchi and Longan]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Determination of the high-yield production level is the premise of establishing foliar nutrient diagnosis indicators for crop. The problems of compositional nutrient diagnosis (CND) approach in determining the highyield levels of litchi and longan were examined, with the aim to identify whether CND is a suitable approach for diagnosis of foliar nutrient in litchi and longan.【Method】A total of 511 leaf samples of litchi (Litchi chinensis Sonn) (c.v. Feizixiao) and 262 leaf samples of longan (Dimocarpus longan Lour) (c.v. Chuliang) were collected at terminal shoot maturing stage and fruit bulking stage in litchi and longan orchards in South China during 2016-2019. The fruit yields of all sample trees were recorded at each harvest period. Foliar nutrient (N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn and B) contents in all samples were determined. Based on the principle of CND approach, the models for the accumulative variance function of foliar nutrient content and fruit yield of litchi and longan were fitted. The appearance of anomalous extremes was examined, and their effects on the models were further analyzed. Then, the variations of the cutoff values before and after the elimination of anomalous extremes were compared, and the influences of different high-yield cutoff value selection principles on high-yield population were investigated.【Result】Abnormal values appeared in the models for fruit yield of both litchi and longan at different growth periods. The removal of the abnormal values had significant influence on the yield models and nutrient cutoff values, and the influence was irregular. No matter what kind of principle is used to determine the high-yield threshold, there were problems such as the small size of the high-yield population, the low proportion of high-yield population or the great discrepancy between the calculated yield level and the actual yield level. Moreover, the calculated high-yield threshold considerably varied with growth stage and year, indicating poor stability. In addition, there was a strong subjectivity in the treatment of abnormal values and the selection of high-yield threshold.【Conclusion】There are obvious shortcomings when CND approach is adopted to determine the high-yield population. The obstacles are probably ascribed to the joint restrictions of the sample size, the foliar nutrient content, and the counting scale of the present study. Therefore, the suitability of CND approach for foliar nutrient diagnosis in perennial woody fruit trees with alternative fruit bearing needs to be carefully evaluated.]]></description>
<pubDate>2023/4/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHU Yongcong, LUO Donglin, BAI Cuihua, YAO Lixian]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHU Yongcong, LUO Donglin, BAI Cuihua, YAO Lixian</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302003&flag=1]]></guid><cfi:id>20</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Different LEDs Light Combination on the Proliferation, Rooting and Growth of Two Kinds of Ornamental Dendrobium Tissue Culture Seedlings]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aims to screen the high-quality LEDs combination suitable for the proliferation, rooting and shoot strengthening of ornamental Dendrobium clonal seedlings, with a view to providing a basis for seedling quality improvement and standardized production.【Method】We studied the effects of 8 different light combinations including LEDs (red, blue and green) and white light (W) on the proliferation, rooting, shoot strengthening and growth of tissue culture seedlings of 2 popular Dendrobium varieties, Dendrobium Mini Red and Dendrobium Angel Baby ‘Love Pocket’.【Result】 D. Mini Red had the best proliferation effect in light quality culture of R6B3G0, the proliferation coefficient reached 2.35 per plant, and its fresh weight, dry weight and dry matter content were 3.941 g/plant, 0.2731 g/plant and 7.06%, respectively; the root number and average root length were 14.20 roots/plant and 2.81cm, respectively. The proliferation of D. Angel Baby ‘Love Pocket’ was the best in light quality culture of R6B3G0, the proliferation coefficient was 3.11 per plant, and the fresh weight, dry weight and dry matter content were 0.258 g/plant, 0.0218 g/plant and 8.58%, respectively; the best root effect was obtained under the light quality treatment of R6B3G0, and the root number and average root length were 10.98 roots/plant and 3.00 cm, respectively. Finally, PCA principal component analysis was used to classify the rooting seedlings of the above two Dendrobium varieties, and it was concluded that the first-class seedlings of D. Mini Red were the most in light quality culture of R3B3G3, R3B6G1 and R3B6G3 (46.7%-53.3%), and the survival rate of domesticated seedlings reached 100%; however, the first-class seedlings of D. Angel Baby ‘Love Pocket’ were the most in light quality culture of R6B3G0 (53.3%), and the survival rate of domesticated seedlings reached 100%.【Conclusion】Appropriate combination of red, blue and green LED light quality can promote the tissue culture and growth of clonal seedlings of D. Mini Red and D. Angel Baby ‘Love Pocket’, and cultivate more high-quality first-class seedlings. The results of this study provide technical reference for the application of LED light source in tissue culture production of ornamental Dendrobium and the standardized production of high-quality seedlings.]]></description>
<pubDate>2023/4/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WU Yao1，2，WANG Zaihua2，YE Guangying2, YANG Yi3，LIU Houcheng4，ZHOU Rong1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WU Yao1，2，WANG Zaihua2，YE Guangying2, YANG Yi3，LIU Houcheng4，ZHOU Rong1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302004&flag=1]]></guid><cfi:id>19</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Metabolomics Comparative Analysis on Tender Tips of White Sechium edule and Jiangtun Cyan Sechium edule]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】In order to find out the substances that affect the quality and taste of Chaylte Vine, the tender tips of white and Jiangtun cyan Sechium edule were used for metabonomic analysis.【Method】Metabolomic detection was carried out for tender tips of the two Sechium edule by using ultra-high performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS), and MetaboAnalyst 5.0, SIMCA-P and Origin software were used to analyze metabolome data.【Result】The results showed that there were significant differences in metabolites among tender tips of the two Sechium edule. A total of 135 differential metabolites were screened, including 82 down-regulated metabolites and 53 up-regulated metabolites. The cluster analysis of differential metabolites showed that the content of myrosinaldehyde in white Sechium edule was high, followed by coniferol. The lysophosphatidyl ethanolamine was the highest differential metabolite in Jiangtun cyan Sechium edule, followed by lysophosphatidylcholine. The result of KEGG shows that differential metabolites enriched in 5 major metabolic pathways, including purine, linoleic acid, flavonoid biosynthesis, synthesis of secondary metabolites and α-linolenic acid metabolism.【Conclusion】The lipid, flavonoid, alkaloids and nucleotides substances in the tender tips of Jiangtun cyan Sechium edule are high, especially lysophosphatidyl ethanolamine, daidzein, adenosine triphosphate and ferulic spermidine etc. The research results elucidated the nutritional and medicinal basis of the metabolomics of Jiangtun cyan 
Sechium edule, and provided a theoretical basis for the selection and breeding of high-quality varieties of Chaylte Vine.]]></description>
<pubDate>2023/4/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SHI Shaoqi1，CHEN Jintian2，LIN Yu’e1，XIE Guoyuan3，HUANG Meihua4，WANG Min1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SHI Shaoqi1，CHEN Jintian2，LIN Yu’e1，XIE Guoyuan3，HUANG Meihua4，WANG Min1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302005&flag=1]]></guid><cfi:id>18</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Current Situation and Prospect of Research on Male Sterility of Tomato]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Tomato is an important vegetable crop in China, and its yield ranks the top among vegetables in the world. It has important nutritional value, with rich and varied tastes. Plant male sterility is caused by the abnormal development of stamens, which cannot produce pollen with normal function, while pistils develop normally and can be fertilized by foreign normal pollen. Tomato is a typical self-pollinated plant with obvious heterosis and strong disease resistance and stress resistance. At present, the production of tomato F1 hybrid seeds in China basically depends on artificial emasculation and pollination, therefore, a lot of manpower and material resources are needed in the process of seed production. In the use of tomato male sterile seed production, the seed production process can be simplified, costs be greatly reduced and and seed purity be improved, in this case, tomato yield and quality will be increased significantly. Therefore, the research and utilization of tomato male sterility is of great practical significance to tomato genetic breeding, and has always been an important research topic for the domestic and foreign scholars. This paper mainly outlines the current situation of male sterility of tomato in recent years, summarizes the types of tomato male sterility, the application of genetic engineering technology of tomato male sterility, the fine positioning and functional study of tomato male sterility gene, and the analysis of cell biological mechanism of tomato male sterility. The effect of temperature on tomato male sterility is expounded from the perspective of genetics, and the physiological and biochemical mechanism and the gene function and regulation mechanism in response temperature changes are discussed. Then, the heterosis of tomato male sterility and its utilization value in production and application are analyzed. On this basis, the problems existing in the current research work are put forward, and the innovation and basic research of tomato male sterility technology in the future are prospected.]]></description>
<pubDate>2023/4/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LI Xiang1,2, LI Tao2, GONG Chao2, LI Zhenxing2, SUN Guangwen1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LI Xiang1,2, LI Tao2, GONG Chao2, LI Zhenxing2, SUN Guangwen1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202302006&flag=1]]></guid><cfi:id>17</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effect of Different Fruit Bags on Fruit Quality of ‘Cuiguan’ Pear]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310012&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】By comparing the quality of ‘Cuiguan’ pear fruits under five different bag treatments, from which the bag that can improve the appearance quality of fruits and has less impact on the internal quality of the fruits was selected, with an aim to provide a basis for screening of bag types in the production of ‘Cuiguan’.【Method】Five different bags were selected for bagging treatments of the ‘Cuiguan’ pear fruits , taking fruits without bagging as control, and the impacts of five different bagging treatments on the quality of ‘Cuiguan’ pear fruits were clarified.【Result】The results showed that the effects of five different bagging treatments on the single fruit weight, transverse diameter, longitudinal diameter, fruit shape index, hardness, pericarp L* value, pericarp b* value, soluble solids content, soluble sugar content of ‘Cuiguan’ pear fruits were relatively small and their coefficients of variation were below 10%. However, bagging could reduce soluble solids content and soluble sugar content by 21.9% and 23.9%, respectively, which had negative effects on the internal quality of the pear fruits. Compared with the control, the chlorophyll content of ‘Cuiguan’ pear fruit after bagging decreased by 73.6%, and the greenness of the inner part of fruit reduced, leading to a lighter color of the fruit surface; the color difference L * value rose by 20. 6% and it significantly improved the brightness and fineness of the fruit surface, which increased its appearance quality and commercial value. Bagging had an impact on the contents of aroma substances in the pericarp of ‘Cuiguan’ pears, and the contents of α-farnesene, hexanal and ethyl acetate in the pericarp increased, and the content of 2-hexenal reduced, making the aroma more intense.【Conclusion】The principal component analysis and comprehensive analysis show that, the double-layer paper bag with yellow outside and white inside can increase the pericarp L * value and pericarp a *
 value ‘Cuiguan’ pear, further enhance the fineness of the fruit surface , improve the appearance quality of Cuiguan pear fruits, with higher comprehensive ranking, which can enhance the appearance quality of the fruits while minimize the negative impacts of bagging on the internal quality at the same time.]]></description>
<pubDate>2023/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[FENG Jinghan1,2, XU Zefan1, XU Jianfeng1,2, CHANG Xiaoxiao3, LIU Yuefei4, MA Hui1,2]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>FENG Jinghan1,2, XU Zefan1, XU Jianfeng1,2, CHANG Xiaoxiao3, LIU Yuefei4, MA Hui1,2</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310012&flag=1]]></guid><cfi:id>16</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Genetic Diversity Analysis of Agronomic Traits in 28 Introduced Cherry Tomato Varieties]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310013&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Lancang County in Yunnan Province is suitable for cherry tomato cultivation with a good industrial foundation. The correlation of phenotypic traits and the characteristic rules among 28 introduced cherry tomato varieties in Lancang County, Yunnan Province were determined in order to screen out the varieties with good agronomic characteristics that were suitable for cultivation in Lancang County, Yunnan Province.【Method】Eight quality traits and 14 quantitative agronomic traits of 28 cherry tomato varieties were investigated by visual observation method, and genetic diversity, 
correlation, principal component and cluster analysis were carried out.【Result】There were significant differences in the main quality traits of 28 cherry tomatoes, such as ripeness, disease resistance, uniformity and mature fruit cracking resistance. A total of 14 varieties with strong resistance were selected, including YTH-FQ-04, YTH-FQ-06, YTH-FQ-07, YTH-FQ-09, YTH-FQ-11, YTH-FQ-12, YTH-FQ-14, YTH-FQ-15, YTH-FQ-18, YTH-FQ-19, YTH-FQ-20, YTH-FQ-21, YTH-FQ-22, YTH-FQ-23, and YTH-FQ-24. Genetic diversity analysis was conducted on 14 quantitative traits and the results showed that the coefficient of variation of phenotypic traits was as follows: flesh thickness > ventricular number > first inflorescence node > second inflorescence node, soluble solids content > fruit transverse diameter, petiole length, first inflorescence node, third inflorescence node > fruit vertical diameter > plant height > single fruit weight > stem diameter > average number of fruits per inflorescence. The results of correlation analysis showed that the fruit transverse diameter was positively correlated with flesh thickness and single fruit weight of 28 materials. The soluble solids content was significantly negatively correlated with fruit transverse diameter and single fruit weight. The average number of fruits per inflorescence, fruit transverse diameter, petiole length, ventricular number and fruit vertical diameter were correlated as the main evaluation factors of cherry tomatoes, and the cumulative contribution rate was 77.46%. According to cluster analysis, 28 tested cherry tomato varieties were divided into 4 groups at 3.0 Euclidean distance. Group 1 were mainly large-fruit type cherry tomatoes, with the largest single fruit weight, thick peel and few fruits per inflorescence. Group 2 mainly consisted of medium-fruit cherry tomatoes with large single fruit weight. Group 3 were small-fruit cherry tomatoes, which had the smallest single fruit weight and the highest soluble solids content. Group 4 contained 21 materials, with high soluble solids content and high average fruit number per inflorescence.【Conclusion】In this experiment, a total of 7 cherry tomato varieties with strong disease resistance, strong crack resistance, high uniformity and good taste were selected, including YTH-FQ-06, YTH-FQ-07, YTH-FQ-09, YTH-FQ-11, YTH-FQ-12, YTH-FQ-18 and YTH-FQ-24. Most phenotypic traits of 28 cherry tomato varieties showed the same rule in correlation analysis and cluster analysis.]]></description>
<pubDate>2023/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XIE Xueguo1, YU Dongdong1, PENG Xiaoyun1, SHI Yanda2, XU Ling3, LUO Zhala2, TANG Junyu1, YANG Zhixiong2, LI Yunju1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XIE Xueguo1, YU Dongdong1, PENG Xiaoyun1, SHI Yanda2, XU Ling3, LUO Zhala2, TANG Junyu1, YANG Zhixiong2, LI Yunju1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310013&flag=1]]></guid><cfi:id>15</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Construction of Factory Breeding Technology System for Tissue Cultured Seedlings of Mussaenda hybird]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310014&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】An efficient factory breeding technology system for tissue cultured seedlings of Mussaenda hybird was established to provide technical support for the large-scale production of the variety.【Method】The stem tips and stem segments of the mother plant of M. hybird were used as explants to study the effects of different disinfection types and treatments, basic medium types and hormone ratios and light quality on the reproductive efficiency of their seedlings. And the effects of different seasons on the survival rate and growth of transplanted seedlings were explored.【Result】Explants of M. hybird were easy to die when exposed to alcohol, and sterile water washing could reduce the toxicity of alcohol to explants; 10% H2O2 treatment for 10 min and 0.1% HgCl2 treatment for 8 min could obtain a large number of sterile materials. Explants had high bud induction rate and strong buds when cultured on 3/2MS + 6-BA 3.0 mg/L + NAA 0.2 mg/L. According to the results of the effects of proliferation methods under different formulations on factory production efficiency of tissue cultured seedlings, propagation of M. hybird was more efficient on 3/2MS + 6-BA 0.5 mg/L + NAA 0.1 mg/L + peptone 
0.1 g/L by stems; the rooting rate of tissue cultured seedlings was 100% on 3/2 MS + NAA 0.04-0.05 mg/L + IBA 0.01 mg/L, the roots were strong, and the plants grew well. There were significant differences in the effects of different seasons on the domestication and transplanting of tissue cultured seedlings of M. hybird. It was found that significant differences in the growth and development and chlorophyll content of tissue culture seedlings with different light qualities. Fluorescent lamp treatment was suitable for proliferation and propagation, and LED with 80% red light +20% blue light was suitable for strong seedlings cultivation at rooting stage.【Conclusion】Effective disinfection method of explants, and suitable medium formula and light quality conditions for the induction and proliferation of buds were obtained, which provided a theoretical basis for the factory breeding of Mussaenda hybird.]]></description>
<pubDate>2023/11/15 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[TAN Jiana, GUAN Jinyan, XU Yuchan, CHEN Shuangyan, LUO Jianpiao, LUO Qingwen]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>TAN Jiana, GUAN Jinyan, XU Yuchan, CHEN Shuangyan, LUO Jianpiao, LUO Qingwen</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202310014&flag=1]]></guid><cfi:id>14</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification and Expression Analysis of Histone Modification Gene Family in Tomato]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404009&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Functional modifications of plant histones, including acetylation modification and methylation modification, play important roles in plant growth and development and in response to adversity. The biological functions and molecular mechanisms of the histone modification (HM) gene family in tomato are still unclear. The present study aims to further clarify the biological functions of the HM genes in tomato, and to lay a foundation for the study of their molecular mechanisms and genetic improvement of tomato.【Method】We identified tomato HM members based on the tomato genome database, systematically analyzed the phylogeny, gene structure, and chromosomal localization of its HM gene family members with bioinformatics methods, and analyzed the spatio-temporal expression patterns of the tomato HM gene family through an online transcriptome database.【Result】A total of 148 tomato HM genes were identified in this study, including 32 encoded histone acetyltransferase (HAT), 11 encoded histone deacetylase (HDAC), 50 encoded histone methyltransferase (HMT), and 55 encoded histone demethylase (HDM). The 148 genes were unevenly distributed on different chromosomes, with the highest number of genes on chromosome 3 (21 genes) and the lowest number of genes on chromosome 12 (4 genes). Gene structure characterization showed that the exons varied greatly among tomato HM genes, with the most exons amounting to 34 and the least to only 1. Protein structure domain analysis showed that Solyc07g064130, Solyc11g005670 and Solyc10g006480 contained only the Ubl structure domains, Solyc07g062100, Solyc10g077110 and Solyc03g083310 contained only the Zn-finger structure domain, another 10 proteins contain the Bromo structure domain, 48 proteins contained only the SET structure domain, and other proteins contained other structure domains such as PLN02529 and PRMT5. In addition, the homologous proteins of tomato HM were distantly related to those of both Arabidopsis and Oryza sativa, and the protein sequences of the tomato HM were more closely related to those of the Arabidopsis thaliana than to those of Oryza sativa. Based on the clustering analysis, the tomato HM members were divided into four families, HAT, HDAC, HMT, and HDM. Tissue expression analysis showed that the HAT family was highly expressed in flowers at 30 d after germination (F30), fruits at 10 d post-anthesis (10DPA), flowers (fr), roots (rr), and immature fruits (Plgfr); the HDAC family was highly expressed in flowers (F30) and immature fruits (Plgfr); the HMT family was highly expressed in flowers (F30), when 50% of the whole plant flowers open (F45), flower buds (br), 3 cm fruits (3fr), and immature 5 cm fruits (PB+5fr); the HDM family was highly expressed in flowers (F30), when 50% of the whole plant flowers open (F45), flower buds (br), flowers (fr), roots (rr), 3 cm fruits (3fr), and immature 5 cm fruits (PB+5fr).【Conclusion】The gene structures of different tomato HM vary greatly and contain multiple functional structural domains. The homologous members of tomato HM are distant from those of Arabidopsis thaliana and Oryza sativa, and tomato HM are expressed in different growth and developmental stages of plants and in different organ tissues, suggesting that this class of genes may be involved in a variety of growth and developmental processes in tomato.]]></description>
<pubDate>2024/6/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[LIU Sijia, XU Duo, LIU Jiawei, CHENG Long, ZHANG Yueqin, YANG Rongchao]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>LIU Sijia, XU Duo, LIU Jiawei, CHENG Long, ZHANG Yueqin, YANG Rongchao</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404009&flag=1]]></guid><cfi:id>13</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Changes in Quality of Fruits during Maturity of Four Main Citrus Varieties in Ruili, Yunnan]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404010&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aims to explore the change law of fruit quality of the main citrus varieties in Ruili area of Yunnan Province during maturity, offering a theoretical foundation for identifying the appropriate time for fruit harvesting.【Method】Four citrus varieties including Orah, Bingtang, Murcott, and W·Murcott were used as tested materials. Fruits were harvested 150-330 d after flowering (August 12, 2020 to February 8, 2021) and 240-405 d after flowering (November 8, 2021 to April 28, 2022). Samples were taken every fifteen days routinely, and the quality of the fruits was determined.【Result】The single fruit quality and the fruit horizontal and longitudinal diameters of the four citrus varieties exhibited a trend of growing first and then flattening as the maturity of fruits. Orah, Bingtang, Murcott and W·Murcott fruits terminated their rapid growth and expansion period before 270, 255, 300 and 285 days after flowering, respectively. In a span of two years, except for Murcott (with transition period being consistent in the first and the second year), the color transition period of W·Murcott peel was earlier in the first year, and the color transition period of Orah and Bingtang was later than the first year. Bingtang, Orah, Murcott and W·Murcott all showed stable mass fractions of total soluble solids content (TSS) after 240, 315, 300 and 270 days of flowering, respectively; while the mass fractions of titratable acid content (TA) showed no significant change at 180, 210, 240 and 240 d of flowering, respectively.【Conclusion】Combining the indicators such as single fruit weight, horizontal and longitudinal diameter, peel colour, and mass fraction of internal substance content, the fruits of Orah, Bingtang, Murcott, and W·Murcott reach harvest maturity at 315, 255, 300, and 285 d after flowering, which are suitable for harvesting.]]></description>
<pubDate>2024/6/7 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[YANG Yanfen, DUAN Minxian, ZHANG Birong, YAN Suyun, SHI Wenbin, TANG Shaoping, PAN Li, ZHOU Xianyan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>YANG Yanfen, DUAN Minxian, ZHANG Birong, YAN Suyun, SHI Wenbin, TANG Shaoping, PAN Li, ZHOU Xianyan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202404010&flag=1]]></guid><cfi:id>12</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Development and Application of InDel Markers in Flowering Chinese Cabbage Based on RAD-seq]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403009&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aimed to develop highly polymorphic InDel markers for molecular marker assisted breeding of flowering Chinese cabbage.【Method】The InDel loci were identified by comparing RAD-seq data from four flowering Chinese cabbage accessions with the genome sequence of Chiifu-401-42 as a reference. InDel loci with potential polymorphism were screened out among four accessions by using bioinformatics methods. From these, 80 InDel loci evenly distributed across 10 chromosomes were selected for primer design and genetic diversity of 55 flowering Chinese cabbage accessions were evaluated.【Result】By alignment with reference genome sequence, a total of 84 510 InDel loci were identified in RAD-seq data of four accessions. Among them, 3 609 InDel loci ( ＞ 5 bp) were possibly polymorphic among four flowering Chinese cabbage accessions. Of 80 InDel loci selected for PCR amplification validation, 58 (72.5%) InDel markers showed polymorphism in the four sequenced accessions, and 133 alleles were detected in 55 accessions. The polymorphic information content (PIC) of these 58 markers ranged from 0.263 to 0.618, with an average of 0.443. Based on the detection results of InDel markers, the genetic similarity coefficient of 55 accessions ranged from 0.366 to 0.756, with an average of 0.570. The 55 accessions were classified into four groups with a genetic similarity coefficient of 0.564, and no significant difference was found in heat resistance among different groups. 【Conclusion】The nDel markers with good polymorphism developed in this study can effectively reveal the genetic distance among different flowering Chinese cabbage germplasm materials, which could provide useful marker information for genetic germplasm analysis and new variety breeding of flowering Chinese cabbage.]]></description>
<pubDate>2024/4/30 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[XU Yufu1, HUANG Yilin1, LI Ronghua1, HUANG Hongdi2, GUO Shaolong2, LI Guangguang3, GUO Peiguo1, XIA Yanshi1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>XU Yufu1, HUANG Yilin1, LI Ronghua1, HUANG Hongdi2, GUO Shaolong2, LI Guangguang3, GUO Peiguo1, XIA Yanshi1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403009&flag=1]]></guid><cfi:id>11</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Optimization of Genetic Transformation System of Peppers by Green Fluorescent Protein]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403010&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The genetic transformation of pepper mediated by Agrobacterium was a very difficult process, and no efficient transformation system had been established so far. Green fluorescent protein (GFP) gene is a common reporter gene in plant genetic transformation. In the study, GFP was used as the reporter gene to optimize the Agrobacterium-mediated genetic transformation system of pepper. 【Method】By using GFP expression system, three types of explants (cotyledons, hypocotyls and Flamingo-bill explants) from 3 pepper varieties (‘HP’ ‘8214’ and ‘L55’) were counted according to the adventitious bud differentiation rate, adventitious root differentiation rate and fluorescence positive rate. The effects of factors including infection concentration and infection time, pre-culture time and co-culture time on adventitious bud differentiation rate, adventitious root differentiation rate and fluorescence positive rate were explored.【Result】The adventitious bud differentiation rate of Flamingo-bill explants was significantly higher than that of the hypocotyl and cotyledon explants, among which the ‘L55’ Flamingo-bill explant had the highest adventitious bud differentiation rate of 77.59%. Therefore, the ‘L55’Flamingo-bill explant was selected for subsequent research. Under 4 different combinations of Agrobacterium infection concentration and infection time, all of them could produce adventitious buds, adventitious roots and GFP-expressing calluses. When the infection concentration of Agrobacterium was OD600=0.05 and the infection time was 30 min, the adventitious bud differentiation rate and fluorescence positive rate of Flamingo-bill explants were the highest, reaching 48.39% and 4.84%, respectively. Under 6 different pre-culture and co-culture time combinations, the Flamingo-bill explants also produced adventitious buds and adventitious roots, and the highest adventitious bud differentiation rate and fluorescence positive rate were 48.44% and 12.50%, respectively, under the treatment of pre-culture for 1 d and co-culture for 1-2 d. Finally, PCR detection of adventitious roots and calluses with GFP fluorescence expression showed that the 3 target genes GFP, Kan and Cas9 all presented signal in the fluorescence positive tissues, indicating that the T-DNA insertion mediated by Agrobacterium was successful and the transformation was stable.【Conclusion】The explant type of pepper, Agrobacterium infection concentration, infection time, pre-culture time and co-culture time all have effects on the genetic transformation efficiency 
of pepper. Screening appropriate transformation conditions with GFP as a reporter gene could improve the efficiency of Agrobacterium-mediated genetic transformation of pepper.]]></description>
<pubDate>2024/4/30 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DONG Yiping1, LIU Hua1, LIU Dan1,2, ZHOU Yingjia1, LI Feng1, DENG Yingtian1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DONG Yiping1, LIU Hua1, LIU Dan1,2, ZHOU Yingjia1, LI Feng1, DENG Yingtian1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202403010&flag=1]]></guid><cfi:id>10</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Endophytic Bacterial Community Diversity in Pulp of Different Litchi Varieties Based on High-throughput Sequencing Analysis]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402003&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】Endophytic bacteria exert an important role in plant growth and development. The study aims to analyze the community structure and diversity of endophytic bacteria in pulp of different litchi varieties, and screen and utilize the potential endophytic bacteria resources, which would provide references for further research on the interaction between litchi and endophytic bacteria.【Method】The pulp tissues of 6 different litchi varieties were used as materials. MiSeq high-throughput sequencing technology was used to compare and analyze the community composition and dominant 
flora of endophytic bacteria at phylum, family, genus and species classification levels in pulp tissues after the V3~V4 region of 16S rDNA was amplified by PCR. The diversity of endophytic bacteria was evaluated combined with Alpha diversity analysis.【Result】A total of 2 139 086 sequences of endophytic bacteria 16S rDNA were obtained in the V3~V4 region of 6 litchi varieties, and the average length of amplified sequences was 376 bp. There was no significant difference in the abundance and diversity of endophytic bacteria in different litchi varieties. At the phylum classification level, Proteobacteria was the main dominant bacterial group in litchi pulp tissue, followed by Actinomyces. At the levels of family, genus and species classification, the endophytic bacterial community structure of different litchi varieties was similar, but the bacterial abundance proportion was different. Differential bacterial community analysis showed that the Pseudomonas, Pectobacterium, Ochrobactrum and Dickeya were significantly enriched in the high-quality varieties of ‘Edanli’, ‘Nuomici’ and ‘Guanyinlv’. In addition, Bradyrhizobium and Snodgrassella were only enriched in the ‘Edanli’. The clustering analysis of relative abundance of bacteria showed that ‘Guanyinlv’, ‘Nuomici’ and ‘Edanli’, had higher similarity. Alpha diversity analysis showed that there were differences in the abundance and diversity of endophytic flora in pulps of 6 litchi varieties, but the differences were not significant.【Conclusion】In this study, the community structure of endophytic bacteria in the pulp of six different litchi varieties was analyzed, and some unique microbial genera were enriched in the high-quality litchi varieties. The results could provide a theoretical basis and important references for the development and utilization of endophytic bacteria to improve litchi quality.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SHI Fachao, CAI Changhe, YAN Qian, JIANG Yonghua, LIU Hailun, WEN Yingjie, OU Liangxi, CHEN Jiezhen]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SHI Fachao, CAI Changhe, YAN Qian, JIANG Yonghua, LIU Hailun, WEN Yingjie, OU Liangxi, CHEN Jiezhen</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402003&flag=1]]></guid><cfi:id>9</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Identification and Expression Analysis of the WRKY Gene Family in Wax Gourd]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】WRKY transcription factor family plays an important role in plant growth, development and stress resistance. The biological functions of WRKY gene family members involved in abiotic stress of Benincasa hispida Cogn. (wax gourd) were explored.【Method】WRKY members of wax gourd were identified based on the genome database of wax gourd. The protein physicochemical properties, phylogeny, conserved motifs and cis-acting elements of the members of the BhWRKY gene family was systematically analyzed by bioinformatics method. And the expression of wax gourd WRKY was analyzed by qPCR.【Result】The results showed that there were 57 members in the BhWRKY gene family with amino acid numbers ranging from 126 to 650 and molecular weight ranging from 13.92 to 71.68 kD. The isoelectric point of protein ranged from 4.61 to 9.69. According to phylogenetic tree, the family was divided into 3 groups, and the second group was further divided into 5 subgroups. The number of WRKY exons of wax gourd ranged from 2 to 6. Chromosomal mapping analysis showed that 56 genes were located on 12 chromosomes, and one gene was not located on the chromosome. The conserved Motif 1 and Motif 3 were found in 56 genes, and the same group had similar conserved motif structure. Meanwhile, it was also found that the promoters of the BhWRKY genes all contained cis-responsive elements and hormone response elements related to stress response. WRKYs were specifically expressed in different tissues and fruit development stages of wax gourd. RT-PCR result showed that abiotic stress and hormone treatment could induce the expression of some BhWRKY genes.【Conclusion】A total of 57 WRKY genes of wax gourd are identified and members of the same subgroup have similar structures. There are differences in the expression of 57 WRKY genes in different tissues. Among them, BhWRKY2, BhWRKY5, BhWRKY39, BhWRKY11, BhWRKY31 and BhWRKY53 participate in different stress responses.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHAO Tianyue1,2, CAI Jinsen2, WANG Min2, XIE Dasen2, YANG Songguang2, CUI Xiaojuan2, GAO Sujuan1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHAO Tianyue1,2, CAI Jinsen2, WANG Min2, XIE Dasen2, YANG Songguang2, CUI Xiaojuan2, GAO Sujuan1</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402004&flag=1]]></guid><cfi:id>8</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Variation and Selection of Growth and Wood Property Traits in Cunninghamia lanceolata Full-sib Families]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aims to prepare new and excellent Cunninghamia lanceolata (Lamb.) Hook germplasm materials and select superior families of C. lanceolata families, thus promoting the breeding process of higher generations of the species.【Method】Ten backbone parents of the second-generation improved seed orchard of C. lanceolata were used as hybrid parents, 30 full-sib families were obtained by artificial pollination, and full-sib progeny determination was conducted in multiple sites. Genetic variations of the growth and wood basic density of 8-year-old C. lanceolata were analyzed, and then the superior families were selected.【Result】Significant differences (P ＜ 0.05) or extremely significant differences (P ＜ 0.01) in tree height, diameter at breast height (DBH), volume per plant and wood basic density (WBD) were observed among families. Among them, volume per plant had the highest variation with phenotypic and genetic variation coefficients of 21.56%-28.53% and 12.18%-19.64%. Family heritability values of tree height, DBH, volume per plant and WBD were 0.1594, 0.2232, 0.1799 and 0.5357, respectively, which were benefit for family selection. The best linear unbiased prediction (BLUP) method was used to estimate the breeding values of growth and WBD of parents from full-sib families, and the special combining ability (SCA) of each hybrid combination was estimated and ranked according to the parental model. Based on the growth traits and WBD, two fast-growth families with good wood quality (family 5 and family 29) were selected. Of the two families, family 5 showed more gain in growth and wood traits with average gain of 6.02% and 26.47%, 8.21% and 14.25%, 15.82% and 34.56%, 7.25% and 5.35% in tree height, DBH, volume per plant and WBD when comparing to overall mean value and F2.5 population, respectively. There, family 5 should be an ideal fast-growth family with good quality.【Conclusion】The growth traits and WBD showed substantial variations among the 30 full-sib families of C. lanceolata. The selected families could be regarded as candidate families that are excellent both in growth and wood basic density.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[HUANG Rong, WANG Runhui, YAN Su, WEI Ruping, WU Guangdi, ZHENG Huiquan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>HUANG Rong, WANG Runhui, YAN Su, WEI Ruping, WU Guangdi, ZHENG Huiquan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402005&flag=1]]></guid><cfi:id>7</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Study on Tissue Culture and Rapid Propagation Technology of Ficus formosana]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】It aims to establish an efficient propagation technology system of Ficus formosana.【Method】Taking the stem segments of F. formosana as test materials, the effects of different basic media on the induction rate and germination number of stem segments were studied. The effects of different plant growth regulators, activated carbon and their concentration ratio on the proliferation coefficient, rooting rate and growth of cluster buds were studied by orthogonal tests Finally, different transplanting substrates were set up to study the transplanting and domestication of tissue culture seedlings, and the substrates that could improve the survival rate and quality of tissue culture seedlings were screened.【Result】Under the same condition of adding 1.0 mg/L 6-BA, 0.5 mg/L KT and 0.2 mg/L NAA, the induction effect of WPM basic medium on stem segment of F. formosana was better than that of MS basic medium. After 30 days of culture, the induction rate was 97.13% and the germination number was 3.38. The range results of orthogonal tests showed that NAA was the main plant growth regulator affecting the proliferation of cluster buds, followed by 6-BA. The optimum medium for proliferation of cluster bud was WPM+2.0 mg/L 6-BA+0.5 mg/L KT+0.1 mg/L NAA, and the proliferation coefficient reached 5.77 after 60 days of inoculation, with robust cluster buds. Meanwhile, NAA was also the main factor affecting the rooting rate of cluster buds, and there was no significant difference in the effects of IBA and activated carbon on rooting rate. The optimum medium for rooting of cluster bud was WPM+0.1 mg/L IBA+0.1 mg/L NAA+1 g/L activated carbon, the rooting rate reached 100% after 60 days of inoculation, and the tissue culture seedlings were robust with developed roots, not prone to break. The best substrate for tissue culture seedlings was: river sand∶vermiculite∶perlite = 1∶1∶1. After 30 days of transplanting, the survival rate was 97.78% and the plant grew well.【Conclusion】The best rapid propagation system of F. formosanus is : the stem segment is induced by WPM+1.0 mg/L 6-BA+0.5 mg/L KT+0.2 mg/L NAA, the proliferation and rooting of cluster buds are conducted by adding WPM+2.0 mg/L 6-BA+0.5 mg/L KT+0.1 mg/L NAA and WPM+0.1 mg/L IBA+0.1 mg/L NAA+1 g/L activated carbon, the transplanting and domestication are performed in river sand: vermiculit: perlite = 1∶1∶1.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[WU Qiaofen, XIA Ke, LU Xi, ZHAO Zhiguo, QIU Shuo]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>WU Qiaofen, XIA Ke, LU Xi, ZHAO Zhiguo, QIU Shuo</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402006&flag=1]]></guid><cfi:id>6</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Advances in Molecular Genetics of Carotenoid Biosynthesis in Capsicum]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402007&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Pepper (Capsicum spp.) belongs to the genus Capsicum in the Solanaceae family and is widely cultivated around the world as a vegetable and spice crop. In addition to its application as a cooking ingredient and spice, pepper also has a wide range of uses in the pharmaceutical and cosmetic fields. Carotenoids are a class of natural pigments involved in many important metabolic processes in plants, such as photosynthesis, photoprotection, photomorphogenesis and growth and development. Carotenoid is one of the main nutrients of pepper fruit, which has various biological activities. To cultivate varieties with higher carotenoid content, it is necessary to understand its biosynthesis and molecular mechanism of regulation.The development of molecular biology and biotechnology has promoted the identification of carotenoid biosynthesis genes, providing opportunities for breeding new varieties of pepper with higher carotenoid content. In this review, the physiological role of carotenoid, carotenoid and pepper fruit color, carotenoid biosynthesis pathway, structural genes and regulatory factors of carotenoid biosynthesis pathway, molecular genetics of pepper fruit color and QTL sites related to pepper fruit color are described. GGPS, PSY, PDS, ZDS, LCY, CCS are port enzymes and rate-limiting enzymes in the carotenoid biosynthesis pathway of pepper, and the expression abundance and activity of them directly regulate the carotenoid content in pepper. Transcription factors such as MYB306, DIVARICATA1 and BBX20 are involved in the regulation of carotenoid biosynthesis in pepper. The diversity of carotenoid biosynthesis and regulatory genes determines the amount and content of carotenoid monomer and affects the color of pepper fruit. Based on the current research progress, future research on carotenoid metabolism of pepper is prospected in order to provide new ideas for breeding new varieties of biofortified pepper rich in carotenoids in the future.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[DENG Minghua, MO Yunrong, LYU Junheng, ZHAO Kai, HUANG Yaoyao, WANG Yanyan, ZHANG Hong]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>DENG Minghua, MO Yunrong, LYU Junheng, ZHAO Kai, HUANG Yaoyao, WANG Yanyan, ZHANG Hong</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402007&flag=1]]></guid><cfi:id>5</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress on Germplasm Resources and Application of Lagerstroemia indica]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202402008&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Lagerstroemia is a native plant in China, which has been cultivated for more than 1 500 years. It is an excellent summer flower woody plant, and is widely used in urban landscaping because of its beautiful color, long flowering period and the advantage of purifying air. The germplasm resources of Lagerstroemia indica are extremely rich. There are about 60 species of Lagerstroemia in the world, 40% of which are in China. The results of national and regional investigations have laid a good foundation for the study of L. indica. In recent years, the cultivation and application of new cultivars have been increased in various regions. The breeding method is mainly traditional breeding, and many new cultivars with good characters and high market value have been cultivated. With the rapid development of breeding technology and molecular biology, a breakthrough has been made in the researches on molecular assisted breeding of L. indica. In this paper, the classification research, germplasm resources, breeding research and introduction and application of L. indica were reviewed. We systematically sorted out the germplasm resources of L. indica in China, including 24 wild species and 350 cultivars, discussed the research process and development trend of breeding of L. indica at home and abroad, and summarized the current situation of introduction and application research. In regard to the current research status of L. indica, this paper offered reflections on future research directions to enhance investigations of L. indica, improve germplasm resource banks, and establish information sharing channels; efforts on breeding should be expanded beyond flower color, fragrance, plant type, resistance and extension of flowering period; and biological and intelligent technologies should be leveraged to strengthen breeding techniques and accelerate innovation in L. indica germplasms. Continuous application forms for L. indica resources should be developed according to local conditions to fully realize their value.]]></description>
<pubDate>2024/3/21 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHANG Linjuan, LI Xiangmao, FENG Shucheng]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHANG Linjuan, LI Xiangmao, FENG Shucheng</atom:name>
</atom:author>
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<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Effects of Low-Light Stress on Physiological Characteristics of Fruits of Different Muskmelon Varieties]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202401004&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】The study aims to explore the effects of low-light stress on the main quality characteristics of fruits of different muskmelon varieties.【Method】The content changes of carbohydrates, carotenoids and chlorophyll in different fruit positions (pedicle, areola and pulp) of three varieties (Xizhoumi No. 1, Zaohuanghou and Jiashi) of muskmelon under different light intensities (100%, 42% and 23% transmittance) at different development stages (0, 3, 7, 14, 21, 35, 40, 60 d after blooming) were investigated. 【Result】Results showed that contents of fruit starch, sucrose and reducing sugar all increased continuously during fruit development and the highest contents exhibited at mature stage (35 d ), and Xizhoumi No. 1 had the highest starch content (10.835%), while Jiashi had the lowest starch content (8.342%). The pulp and areola of the fruits of three varieties showed higher sucrose content than that in pedicle, but no difference in reducing sugar content. The contents of carotenoid and chlorophyll increased during fruit development but decreasedat full ripe stage (60 d after blooming). Low-light stress significantly reduced the carbohydrate content, increased carotenoid and chlorophyll contents, and most significant effect was found under transmittance 23% treatment, under which the contents of starch, sucrose and reducing sugar in Xizhoumi No. 1 muskmelon reduced by 32.3%, 29.87% and 28.02%, while contents of carotene and chlorophyll increased by 19.47% and 13.98%, respectively. The contents of starch, sucrose and reducing sugar in Zaohuanghou muskmelon reduced by 32.63%, 25.09% and 20.24%, and the contents of carotene and chlorophyll increased by 54.74% and 21.06%, respectively. The contents of starch, sucrose and reducing sugar in Jiashi muskmelon reduced by 41.08%, 32.39% and 39.1%, and the contents of carotene chlorophyll increased by 55.20% and 31.79%, respectively. Compared with Xizhoumi No. 1 and Zaohuanghou muskmelons, the Jiashi muskmelon showed the lowest starch and chlorophyll contents and the highest sucrose and reducing sugar contents, and exhibited the most significant decline of starch, sucrose and reducing sugar contents, and increase of carotenoid and chlorophyll contents, indicating that the Jiashi muskmelon was affected most significantly by low-light stress and showed poorest low-light tolerance. 【Conclusion】 The low-light stress reduces the commercial quality of muskmelon fruits, and the quality is worse when the light transmittance is lower. Jiashi muskmelon is most sensitive to low-light stress.]]></description>
<pubDate>2024/3/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[GENG Xinli1, YAO Jun1, ZHENG Heyun1, XIE Bing2,3, ZHANG Qiuqin2, ZHANG Cuihuan1, REN Xiaopu3, Wang Libin2, QIAN Chunlu4]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>GENG Xinli1, YAO Jun1, ZHENG Heyun1, XIE Bing2,3, ZHANG Qiuqin2, ZHANG Cuihuan1, REN Xiaopu3, Wang Libin2, QIAN Chunlu4</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202401004&flag=1]]></guid><cfi:id>3</cfi:id><cfi:read>true</cfi:read></item>
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<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Physiological Response of Haloxylon ammodendron Seedlings to Drought Stress Under Different Levels of Nitrogen Application]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202401005&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[【Objective】It aims to explore the response of different nitrogen fertilizer levels to the growth and physiological changes of Haloxylon ammodendron seedlings under drought stress, and to provide theoretical basis and technical parameters for ecological restoration and vegetation conservation management in desert areas.【Method】The H.ammodendron seedlings in the desert area of Xinjiang were taken as research objects, and the changes of natural drought (water) conditions of the soil were simulated in the critical periods of seedling growth through pot test in high temperature season, and treatments of CK, mild drought, moderate drought and severe drought were set up according to the saturated water holding capacity of the soil, and the nitrogen levels of N0, N1, N2, N3, N4 and N5 (0、0.05、2.50、5.00、7.50、10.00g/m2) were set up respectively under the treatment of each drought gradient. Field collection of each treatment was carried out. The whole plant was labelled, the assimilated branches of labelled seedlings were collected randomly, the biomass of seedlings was determined by indoor drying, and the contents of soluble protein, soluble sugar, proline and malondialdehyde in assimilated branches were analyzed and determined to study the physiological response characteristics of seedlings to drought changes under different nitrogen application levels.【Result】Under different drought gradients, taking mild drought as an example, the plant biomass of seedlings showed a trend of increasing and then decreasing with the increase of nitrogen application, and the plant biomass increased from 23.28 g at N0 to 30.19 g at N3 and then decreased to 27.57 g at N5, indicating that excessive application of nitrogen was not conducive to the accumulation of seedling biomass. The contents of soluble protein, soluble sugar, proline and malondialdehyde in the assimilated branches of seedlings increased with the increase of drought gradient at different N application levels. When the assimilated branches were under severe drought, the contents of soluble protein, soluble sugar, proline and malondialdehyde accumulated rapidly, they adapted to the drought through osmoregulation, and the contents of each of them in the assimilated branches at the N3 application level showed the smallest increase compared with that in CK, with the increase of 58.96%, 73.01%, 73.1% and 73.9%, respectively, indicating that reasonable nitrogen application could effectively alleviate drought.【Conclusion】Reasonable fertilization is beneficial to the accumulation of seedling plant biomass and effectively alleviate drought stress. It is found that, under the N3 nitrogen application level, the biomass of seedling plant under each drought treatment reached the maximum value, and the contents of soluble protein, soluble sugar, proline and malondialdehyde in the assimilated branches show the least increase with the increase of drought gradient. Considering the comprehensive effect of fertilizer application, it is recommended that 5.00 g/m2 of N fertilizer can be added to the conventional planting when artificially planting H. ammodendron transplants in the desert areas of Xinjiang.]]></description>
<pubDate>2024/3/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[SHI Yaxin, WANG Ze, REN Cai, ZHENG Hanhan, ZHOU Cong, QI Fan]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>SHI Yaxin, WANG Ze, REN Cai, ZHENG Hanhan, ZHOU Cong, QI Fan</atom:name>
</atom:author>
<guid><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202401005&flag=1]]></guid><cfi:id>2</cfi:id><cfi:read>true</cfi:read></item>
<item>
<title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="text"><![CDATA[Research Progress on the Application of Electronic Nose in Storage and Preservation of Fruits and Vegetables]]></title>
<link><![CDATA[http://gdnykx.cnjournals.org/gdnykxen/ch/reader/view_abstract.aspx?file_no=202401006&flag=1]]></link>
<description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005" cf:type="html"><![CDATA[Postharvest change in fruits and vegetables is a complex biological process that involves multiple stages such as maturity, senescense and death, leading to a series of physiological, biochemical and microbial changes in the internal substances of fruits and vegetables, thereby affecting their quality and flavor. Scent is one of the important indicators of fruit and vegetable quality and flavor, which is closely related to factors such as variety, maturity, freshness and postharvest diseases. Traditional flavor analysis methods mainly include instrumental analysis (such as gas chromatography-mass spectrometry, GC-MS) and sensory analysis, however, these methods have some limitations. For example, GC-MS cannot fully reflect the overall flavor of the sample, and sample pre-treatment is complex, with long detection time and high technical costs. Sensory analysis is greatly influenced by subjective factors. As an instrument that simulates biological olfactory systems, electronic nose can quickly, objectively and accurately detect and recognize odor signals, gradually becoming a research hotspot in the field of storage and preservation of fruits and vegetables. This article reviews the application progress of electronic nose in fruit and vegetable variety and origin identification, maturity judgment, freshness detection, post harvest disease monitoring, pesticide residue and quality evaluation, and analyzes the challenges and problems faced by electronic nose in practical application. It also offers a prosect for the future development trend of precise postharvest detection of fruits and vegetables, and possible ways to improve electronic nose towards specialization, intelligence and practicality, which provides theoretical references and technical support for achieving precise detection of fruit and vegetable quality.]]></description>
<pubDate>2024/3/8 0:00:00</pubDate>
<category><![CDATA[Horticulture & Forestry]]></category>
<author><![CDATA[ZHU Rongqiu1, ZHOU Yiwei2, CHEN Weixin1, ZHU Xiaoyang1, LI Xueping1]]></author>
<atom:author xmlns:atom="http://www.w3.org/2005/Atom">
<atom:name>ZHU Rongqiu1, ZHOU Yiwei2, CHEN Weixin1, ZHU Xiaoyang1, LI Xueping1</atom:name>
</atom:author>
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