| 杂交中稻抽穗期天气对结实率的影响 |
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| 引用本文： | 彭菊,张上都,伍祥,石邦志,陈文强,周乐良.杂交中稻抽穗期天气对结实率的影响[J].耕作与栽培,2016(5). |
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| 作者姓名： | 彭菊 张上都 伍祥 石邦志 陈文强 周乐良 |
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| 作者单位： | 贵州省水稻研究所,贵州 贵阳,550006 |
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| 基金项目： | 贵州省农业科学院基金项目黔农科合(基金)2010005；贵州省星火计划项目黔科合成转字[2015]5315－1 |
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| 摘 要： | 为探索提高杂交中稻结实率的措施,2012-2013对杂交中稻品种抽穗期前后的主要气象因子进行观察,研究其对水稻产量及主要经济性状的影响。结果表明:水稻产量受气象因子的制约,特别是水稻抽穗期前后20d的气象因素对水稻结实率影响较大,Y两优585受抽穗期前10d天气变化影响较大,奇优894、金优785受抽穗期后10d天气变化影响较大。
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| 关 键 词： | 气象因子 杂交中稻 结实率 |
Effects of Climate at Heading Stage on Setting rate of Hybrid Semilate Rice |
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| Abstract: | To increase the setting rates of hybrid rice,the main meteorlogical factor of 201 2 -201 3 were observed before and after the heading of 3 semilate rice varieties,to study the effects of weather changes at heading stage on yield and economic traits of rice.The results showed that the yield of rice is restricted by meteorlogical factors,in particular,the 20 days before and after the rice heading in-fluenced rice seed setting rate,the weather at 1 0 days before heading has great influence the setting rate of Y Liangyou 585,while the weather at 1 0 days after heading has great influence the setting rate of Qiyou 894,Jinyou 785. |
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| Keywords: | meteorological factor hybrid semilate rice setting rate |
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