| 4种光温敏核不育水稻在南昌的育性表现 |
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| 引用本文： | 宁金花,张艳贵,周玉,宋忠华.4种光温敏核不育水稻在南昌的育性表现[J].安徽农业科学,2012,40(1):96-98. |
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| 作者姓名： | 宁金花 张艳贵 周玉 宋忠华 |
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| 作者单位： | 湖南省气象局气象培训中心,湖南长沙,410125;湖南省气象局气象培训中心,湖南长沙,410125;湖南省气象局气象培训中心,湖南长沙,410125;湖南省气象局气象培训中心,湖南长沙,410125 |
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| 基金项目： | 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 |
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| 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。
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| 关 键 词： | 水稻 核不育 育性表达 温度敏感期 |
Fertility Performance of 4 kinds of Photo-thermo-Sensitive Genic Male Sterile Rice in Nanchang Area |
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| Institution: | NING Jin-hua et al(Meteorological Training Center of Hunan Weather Bureau,Changsha,Hunan 410125) |
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| Abstract: | 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. |
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| Keywords: | Rice Genie male-sterile Fertility express Temperature sensitive stage |
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