开花期水分胁迫对水稻产量构成及产量的影响  

Effects of Water Stress on Yield Composition and Yield of Rice in Blooming Stage

作　　者：张瑞珍[1] 邵玺文[2] 童淑媛[2] 杜震宇[2] 杨沫[2] 孙长占[2] 

机构地区：[1]四川省草原工作总站,成都610041 [2]吉林农业大学农学院,长春130118

出　　处：《吉林农业大学学报》2006年第1期1-3,7,共4页Journal of Jilin Agricultural University

基　　金：长春市农业创新计划项目(长科合字第01-052N12号)

摘　　要：采用盆栽人工控制水分方法,研究了开花期水分胁迫对水稻生长发育及产量的影响。结果表明:土壤湿润处理(H1)水稻千粒重27.1 g,比对照重12.9%,差异极显著(P<0.01),处理H1每盆产量152.1 g,高于对照(146.6 g),但差异不显著;中度水分胁迫处理(H2)每盆产量124.4 g和重度水分胁迫处理(H3)每盆产量118.6 g均低于对照,差异极显著(P<0.01)。水稻开花期保持土壤湿润有利于籽粒增重,提高产量又节约水资源。The effects of water stress on growth and yield of rice in blooming stage were studied by pot planting and water controlling. The results showed that 1000-grain weight under field wetness treatment （H1） was 27.1 g, 12.9% higher than that of the control, and the difference was extremely significant （P 〈 0.01）. Yield of treatment H1 was 152.1 g, higher than that of the control （146.6 g）, but the difference was not significant. Yield of treatment H2（medium water stress） was 124.4 g and that of treatmerit H3 （heavy water stress） was 118.6 g, lower than that of the control, and the difference was extremely significant （P 〈 0.01）. Maintaining filed wetness increases rice grain weight in blooming stage, saves water resources and improves yield.

关 键 词：水稻 开花期 水分胁迫 产量性状 产量 

分 类 号：S511.01[农业科学—作物学]