| 钟铭隆1，付晓凤2，朱 原3，王艺锦2，胡 倩2，王凌晖2，滕维超2.酸铝胁迫下NO 对土沉香幼苗生长特性的影响[J].广东农业科学,2017,44(12):20-26 |
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酸铝胁迫下NO 对土沉香幼苗生长特性的影响 |
| Effects of NO on growth characteristics of Aquilaria sinensis seedlings under acid-aluminum stress |
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| DOI：10.16768/j.issn.1004-874X.2017.12.004 |
| 中文关键词: 土沉香 一氧化氮 酸铝胁迫 硝普纳 缓解效应 |
| 英文关键词: Aquilaria sinensis NO acid-Al stress SNP relieve effects |
| 基金项目:广西林业科技项目（桂林科字[2012] 第27 号，桂林科字[2012] 第25 号） |
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| 摘要点击次数: 1969 |
| 全文下载次数: 601 |
| 中文摘要: |
| 采用盆栽完全随机设计，研究NO 对酸铝胁迫下土沉香幼苗生长的缓解作用。结果表明：土沉
香幼苗株高、地径、比叶重、生物量、根系等生长指标均随Al 浓度的增加呈先上升后下降趋势，浓度在0.4
mmol/L 以下的Al 溶液对土沉香幼苗生长有一定促进作用，随着Al 浓度继续增加，对土沉香幼苗生长产生
抑制作用。综合分析表明，以0.2 mmol/L 的Al 浓度促进作用最为明显，若施加超过0.4 mmol/L 继续增加Al
浓度则会对土沉香幼苗生长产生明显的抑制作用，施加0.8 mmol/L Al 溶液长势最差。而添加0.1 mmol/L 硝
普纳（SNP）可在一定程度上缓解Al 胁迫对土沉香幼苗生长的抑制影响，其中处理7（0.2 mmol/L Al+0.1
mmol/L SNP）长势最优，株高、地径、生物量分别为0.69 m、0.48 cm、39.00 g，根系指标中总根长、根平均
直径、根表面积、根总体积、根尖数依次为3 750 mm、0.805 cm、800 mm2、12.8 cm3、6 000 个；而处理5（0.8
mmol/L Al+0 mmol/L SNP）各指标值均最小，株高、地径、生物量依次为0.28 m、0.18 cm、26.30 g，根系指标即
总根长、根平均直径、根表面积、根总体积、根尖数依次为1 380 mm、0.570 cm、320 mm2、6.00 cm3、2 550 个。 |
| 英文摘要: |
| Using potted plants completely random design，the effect of NO on the growth of Aquilaria sinensis
seedlings under acid-aluminum（ Al） stress was studied. The results showed that A. sinensis seedlings，growth
indexes such as seedling height，ground diameter，biomass，stem，specific leaf weight，root growth indices displayed
a downward trend after rising first. Concentration below 0.4 mmol/L aluminum solution for Aquilaria sinensis seedling
growth had a certain role in promoting，with aluminum concentration increasing，the seedling growth of trees was
inhibited. Comprehensive analysis showed that the promotion effect of 0.2 mmol / L of Al was most obvious. When
the concentration of aluminum increased to more than 0.4 mmol/L，there was a significant inhibitory effect on A.
sinensis seedlings growth，the effect of 0.8 mmol/L aluminum solution was the worst. The addition of 0.1 mmol/L SNP
could alleviate the effect of aluminum stress on the inhibition of seedling growth. The results showed that the growth
of treatment 7（ 0.2 mmol / L Al，0.1 mmol / L SNP） was the best，plant height，diameter，biomass were 0.69 m，0.48 cm，39.00 g，the total root length，root mean diameter，root surface area，root total volume and root tip number
of root system were 3 750 mm，0.805 cm，800 mm2，12.8 cm3 and 6 000. While treatment 5（ 0.8 mmol / L Al，0
mmol / L SNP） obtained the minimum，the plant height，diameter and biomass were 0.28 m，0.18 cm and 26.30 g，
respectively，the root indexes were 1 380 mm，0.570 cm，320 mm2 and 6.00 cm3，2 550. |
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