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| 几个水稻光温敏两系不育系柱头外露率和柱头活力比较 | |
| 引用本文： | 杜雪树,夏明元,戚华雄. 几个水稻光温敏两系不育系柱头外露率和柱头活力比较[J]. 湖北农业科学, 2016, 0(24). DOI: 10.14088/j.cnki.issn0439-8114.2016.24.009 |
| 作者姓名： | 杜雪树 夏明元 戚华雄 |
| 作者单位： | 湖北省农业科学院粮食作物研究所/粮食作物种质创新与遗传改良湖北省重点实验室,武汉,430064 |
| 基金项目： | 国家“863”计划(2014AA10A604) |
| 摘 要： | 对新选育的几个水稻(Oryza sativa L.)两系不育系和其他几个常用两系不育系柱头外露率和柱头活力进行了观察和比较。结果发现,以广占63S为遗传背景育成的2个两系不育系MS004S和MS2080S的平均总柱头外露率分别为36.0%和35.9%,与广占63-4S基本相当;MS004S和MS2080S平均活力系数分别为2.06和1.86,也与广占63-4S基本相当。抽穗时适宜的温度可提高不育系的柱头外露率和柱头活力。 |
| 关 键 词： | 水稻(Oryza sativa L.) 不育系 柱头外露率 柱头活力 |
Comparison of Stigma Exsertion Rate and Stigma Vigour of Several Sterile Lines |
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| Abstract: | The exposure rate of stigma and stigma activity of new1y bred ma1e steri1e 1ines and severa1 other common ma1e steri1e 1ines were observed and compared. The average stigma exposure rates were 36% and 35.9%, respective1y, for MS004S and MS2080S, which were two-1ine steri1e 1ines with Guangzhan 63S as genetic background. These rates were a1most the same as Guangzhan 63-4S. The average seed vigor coefficients of MS004S and MS2080S were 2.06 and 1.86, respective1y, a1so the same as Guangzhan 63-4S. The appropriate temperature at heading stage cou1d increase the stigma exposure rate and stigma vigor of ma1e steri1e 1ine. |
| Keywords: | rice(Oryza sativa L.) ma1e steri1e 1ine stigma exsertion stigma vigour |
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