| 自育水稻三系不育系黔209A的开花习性 |
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| 引用本文： | 龙江辉,向关伦,甘雨,杨占烈,王际凤,黄宗洪,郝留根,郭慧,蔡源.自育水稻三系不育系黔209A的开花习性[J].贵州农业科学,2017,45(10). |
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| 作者姓名： | 龙江辉 向关伦 甘雨 杨占烈 王际凤 黄宗洪 郝留根 郭慧 蔡源 |
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| 作者单位： | 1. 贵州省农业科学院水稻研究所,贵州贵阳,550006;2. 修文县农业局,贵州贵阳,550200 |
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| 基金项目： | 国家重点研发计划项目，贵州省农业动植物育种专项“高产杂交水稻协优385试验示范”，贵州省农业动植物育种专项“杂交水稻新品种湘菲优785的试验示范”，贵州省农业科学院科技成果培育与人才培养项目“自育杂交水稻组合不育系原种繁殖技术研究”，贵州省农业科学院自主创新科研专项 |
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| 摘 要： | 为掌握自育三系不育系黔209A的异交特性,以利于其繁、制种,对其开花习性进行初步研究。结果表明:在贵阳自然生态条件下,黔209A群体开花历时10~12d,单穗开花期约8d,开花后约第4天进入盛花期;开花时间为8:30-15:30,开花高峰期出现在11:30-12:30;午前开花率为80.43%,柱头外露率为82.3%,是一个开花习性优良、农艺性状较好的不育系。
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| 关 键 词： | 杂交水稻 黔209A 开花习性 |
Study on Flowering Habit of Qian 209A,a Rice Three-line Sterile Line Bred by Guizhou Rice Institute |
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| LONG Jianghui,XIANG Guanlun,GAN Yu,YANG Zhanlie,WANG Jifeng,HUANG Zonghong,HAO Liugen,GUO Hui,CAI Yuan.Study on Flowering Habit of Qian 209A,a Rice Three-line Sterile Line Bred by Guizhou Rice Institute[J].Guizhou Agricultural Sciences,2017,45(10). |
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| Authors: | LONG Jianghui XIANG Guanlun GAN Yu YANG Zhanlie WANG Jifeng HUANG Zonghong HAO Liugen GUO Hui CAI Yuan |
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| Abstract: | The flowering habit of Qian 209A,a rice three-line sterile line bred by Guizhou Rice Institute,is preliminarily studied to know well the out-crossing characteristics of Qian 209A for its reproduction and seed production by experiment of net room.Results:The flowering duration of Qian 209A population is 10 ～ 12d.The flowering duration of single spike is 8d.The fourth day after first flowering is at the full-flowering stage.The flowering time and peak flowering time is at 8:30～15:30 and 11:30～12:30 respectively.The flowering rate before noon and stigma exsertion rate is 80.43％ and 82.3％ separately.Qian 209A with good flowering habit and better agronomic trait should be used in production of hybrid rice. |
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| Keywords: | hybrid rice Qian 209A flowering habit |
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