【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绝对含氮量 ,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更多还原

【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.更多还原