小麦生育中后期干旱对其生长与产量的影响  

Effect of the Drought in the Middle-later Period of Wheat Growth on its Growth and Yield

作　　者：张雪梅[1] 陈修玲[1] 桑涛 肖林 王兰英 高玉振 曹鹏志 

机构地区：[1]太和县农业技术推广中心,太和236600

出　　处：《安徽农业科学》2000年第4期452-453,共2页Journal of Anhui Agricultural Sciences

摘　　要：20 0 0年 3～ 5月份共降水 15 .43mm ,这是建国以来最严重的春旱年 ,小麦减产 2 4.9% ,矮早麦穗粒数较前 4年平均数减少6 .7粒。而 1978年小麦同样是中后期干旱却比当时前后 7年的小麦平均单产增产 15 .3 % 。The rainfall from March to May of 2000 was 15.43mm and this year was the most serious drought year in Spring since 1949. 24.9%of wheat yield was less in 2000 than in normal year. The number of seed per panicle from short and early tillers was 6.7 seeds less in 2000 than the average number of past four years, but under the same situation in 1978, wheat yield was increased 15.3% more than the average yield of last seven years. Thus, the reason of yield increase and reduction in 1978 and 2000 respectively was sought.

关 键 词：小麦 中后期 干旱 生长 产量 

分 类 号：S435.121.3[农业科学—农业昆虫与害虫防治] S423[农业科学—植物保护]