孕穗期渍水逆境对冬小麦氮素代谢和产量的影响  

Effects of Waterlogging Stress on Nitrogen Metabolism and Yield in Winter Wheat at Booting Stage

作　　者：李金才[1] 孙五三[1] 张文静[1] 

机构地区：[1]安徽农业大学农学系,合肥230036

出　　处：《安徽农业大学学报》2002年第2期119-122,共4页Journal of Anhui Agricultural University

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 。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.

关 键 词：氮素代谢 产量 冬小麦 孕穗期 渍水 

分 类 号：S512.110.1[农业科学—作物学]