文章摘要
李发桥 1 ,戴晓萧 1 ,王伦伟 1 ,夏小舟 1 ,韦善清 1 ,梁  和 1 ,江立庚.广西主要水稻品种耐低肥能力评价与分类[J].广东农业科学,2019,46(3):1-10
广西主要水稻品种耐低肥能力评价与分类
Evaluation and Classification of Low Fertility Tolerance of Main Rice Varieties in Guangxi
  
DOI:10.16768/j.issn.1004-874X.2019.03.001
中文关键词: 水稻  耐低肥能力  低氮  低磷  低钾  品种筛选  聚类分析
英文关键词: rice  low fertilizer tolerance  low nitrogen  low phosphorus  low potassium  variety selection  cluster analysis
基金项目:国家现代农业产业技术体系广西创新团队(水稻)(NYCYTXGXCXTD-01)
作者单位
李发桥 1 ,戴晓萧 1 ,王伦伟 1 ,夏小舟 1 ,韦善清 1 ,梁  和 1 ,江立庚 1. 广西大学农学院广西 南宁 5300042. 南方粮油作物协同创新中心湖南 长沙 410128 
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中文摘要:
      【目的】评价广西主要水稻品种的耐低肥能力,筛选养分高效水稻品种供生产应用。【方法】选 用广西 48 个主要水稻品种进行大田试验,设置 1/3 正常施氮量、不施磷肥、不施钾肥、正常施肥 4 个处理。根 据相对产量(低肥条件下水稻产量 / 正常施肥条件下的产量)评价水稻品种的耐低肥能力。【结果】1/3 正常施 氮量、不施磷肥、不施钾肥处理水稻的相对产量分别为 0.89、0.88 和 0.93,且品种间差异均达显著水平。根据 品种相对产量进行聚类分析,48 个参试水稻品种按耐低氮能力、耐低磷能力、耐低钾能力分别可以聚类成 3 类。 其中,广两优 1598、桂两优 2 号、特优 5 号、特优 582、桂丰 2 号、特优 3813、T 优 6135、科两优 889、中广 香 1 号、亚航金占等 10 个品种同时具备较强的耐低氮、低磷、低钾能力。【结论】广西不同水稻品种耐低氮、 低磷、低钾能力的差异显著,参试 48 个品种中 10 个品种同时具备较强的低氮、低磷、低钾能力。
英文摘要:
      Abstract:【Objective】The present study was to evaluate the ability of low fertilizer tolerance of major rice varieties in Guangxi and to screen nutrient-efficient rice varieties for production and application.【Method】48 major rice varieties were selected for field experiment and four treatments were set, i.e. 1/3 standard nitrogen fertilization, no phosphorus fertilization, no potash fertilization and standard fertilization. The ability of low fertilizer tolerance of rice varieties was evaluated based on relative yield (ratio of rice yield under low fertilizer conditions to that under standard fertilizer conditions). 【Result】 The relative yields of the three treatments (1/3 N application, no P application and K application) were 0.89, 0.88 and 0.93, respectively, and there were significant differences among varieties. Based on the clustering analysis of relative yield of varieties, 48 rice varieties could be grouped into three categories according to their tolerance to low nitrogen, phosphorus and potassium, respectively. Among all varieties , Guangliangyou 1598, Guiliangyou 2, Teyou 5,Teyou 582,Guifeng 2,Teyou 3813,Teyou 6135, Keliangyou 889, Zhongguangxiang 1, Yahangjinzhan had strong tolerance to low nitrogen, phosphorus and potassium simultaneously. 【Conclusion】There were significant differences in the tolerance to low nitrogen, phosphorus and potassium among different rice varieties in Guangxi. 10 of 48 varieties had strong tolerance ability to low nitrogen, phosphorus and potassium.
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