热害对67个籼型杂交组合结实率的影响  

Influence of Thermal Damage on Seed-setting Rate of 67 Indica Hybrid Rice Combinations

作　　者：周义文[1] 龚红兵[1] 李闯[1] 胡春明[1] 林添资[1] 盛生兰[1] 

机构地区：[1]江苏丘陵地区镇江农业科学研究所,江苏句容212400

出　　处：《江西农业学报》2009年第10期23-26,共4页Acta Agriculturae Jiangxi

基　　金：江苏省高技术项目(编号:BG2004301);江苏省农业科学院科研基金(编号:6210731)

摘　　要：对67个籼型杂交组合进行高温处理,各组合的结实率均出现不同程度的降低,降幅均达极显著水平,结实率大于60%且结实率降幅小于30%的组合有8个,占供试组合总数的11.94%。研究还表明,热害对籼型杂交组合结实率的影响与其亲缘有关。Sixty - seven indica hybrid rice combinations were treated with high temperature, alter treatment, their seed - setting rates were all significantly decreased （ P 〈0.01 ） , there were 8 combinations whose seed - setting rate was more than 60% and the descending range of seed - setting rate was below 30% , accounting for 11.94%. The result also showed that the influence of thermal damage on seed - setting rate of indica hybrid rice combinations was not correlative with their parents.

关 键 词：热害 杂交组合 结实率 影响 

分 类 号：S511.21[农业科学—作物学]