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孕穗期渍水逆境对冬小麦氮素代谢和产量的影响
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摘要:
采用池栽试验,研究孕穗期渍水逆境对冬小麦氮素营养和产量的影响。结果表明:孕穗期渍水显著地影响冬小麦氮素的吸收量,降低茎鞘、叶片和全株的相对含氮量和含氮量,对氮素在不同器官的分配影响较小,从而导致旗叶叶绿素含量和净光合速率降低,最终使粒重和产量下降。
关键词:  氮素代谢 产量 冬小麦 孕穗期 渍水
DOI:
修订日期:2001-12-27
基金项目:
Effects of Waterlogging Stress on Nitrogen Metabolism and Yield in Winter Wheat at Booting Stage
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Abstract:
Effects of waterlogging at booting stage on N nutrition and yield were studied from 1998 to 2000 by applying simulation waterlogging method.The results showed that waterlogging at booting stage significantly influenced N nutrition absorbtion content,and reduced the total chlorophyll content,net photosynthesis rate of flag leaf,the grain weight,and economic yield finally.
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