4种光温敏核不育水稻在南昌的育性表现  

Fertility Performance of 4 kinds of Photo-thermo-Sensitive Genic Male Sterile Rice in Nanchang Area

作　　者：宁金花 张艳贵 周玉 宋忠华 

机构地区：[1]湖南省气象局气象培训中心,湖南长沙410125

出　　处：《安徽农业科学》2012年第1期96-98,共3页Journal of Anhui Agricultural Sciences

基　　金：长江中下游高产优质双季稻主要农业气象灾害指标试验研究

摘　　要：[目的]考查自然条件下4种不育系水稻在南昌的育性情况。[方法]2010年通过分期播种的方法分别对4个不同类型的实用光温敏核不育系准S、Y58S、P88S和培矮64S的育性转换特性进行系统研究。[结果]准S的敏感期为开花前9～10 d,58S的敏感期为开花前11～13 d,培矮64S的敏感期为开花前16～19 d,P88S没有明显的敏感期。从育性转换临界温度来看,准S最低,为27.2℃;培矮64S次之,为27.5℃;58S转换温度最高,为29.3℃。[结论]在南昌地区,培矮64S的育性波动较小,稳定期较长,较其他几个不育系好。[Objective]The study aimed to investigate the fertility status of 4 kinds of genic male sterile rice in Nanchang area.[Method] The fertility conversion characteristic for 4 kinds of practical photo-thermo-sensitive genic male-sterile lines including Zhun S,Y58S,P88S and Peiai 64S with different types were conducted for the systematic study resp.through the sowing method by stages.[Result] The sensitive period of Zhun S was 9-10 d before the flowering,that of 588 was 11-13 d before the flowering,that of Peiai 64S was 16-19 d before the flowering and P88S had no obvious sensitivity period.As for the critical temperature of the fertility conversion,Zhun S was lowest,being 27.2 ℃,Peiai 64S was the next,being 27.5 ℃,58S was highest,being 29.3 ℃.[Conclusion] In Nanchang area,Peiai 64S showed the smaller fertility fluctuation and longer stable period,so it was better than other genic male sterile lines.

关 键 词：水稻 核不育 育性表达 温度敏感期 

分 类 号：S511[农业科学—作物学]