| II优系列杂交稻组合产量结构分析及增产途径 |
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| 引用本文： | 扶定,王青林,马汉云,霍二伟,沈光辉,郭桂英.II优系列杂交稻组合产量结构分析及增产途径[J].湖北农业科学,2011,50(22):4544-4546. |
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| 作者姓名： | 扶定 王青林 马汉云 霍二伟 沈光辉 郭桂英 |
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| 作者单位： | 河南省信阳市农业科学研究所,河南,信阳,464000 |
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| 基金项目： | 河南省科技成果转化项目(112201110009) |
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| 摘 要： | 对40个II优系列杂交稻组合的主要经济性状进行了主成分分析.结果表明,每穗实粒数对产量贡献率最大,其次是穗长和千粒重,再次是有效穗数.因此,在高产栽培中,应在适宜的穗数基础上,主攻每穗总粒数,增加粒重,以获得高产.
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| 关 键 词： | II优系列杂交稻组合 产量 主成分分析 增产途径 |
Analysis on Yield Components and Yield-increasing Approach of II You Hybrid Rices Combinations |
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| FU Ding,WANG Qing-lin,MA Han-yun,HUO Er-wei,SHEN Guang-hui,GUO Gui-ying.Analysis on Yield Components and Yield-increasing Approach of II You Hybrid Rices Combinations[J].Hubei Agricultural Sciences,2011,50(22):4544-4546. |
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| Authors: | FU Ding WANG Qing-lin MA Han-yun HUO Er-wei SHEN Guang-hui GUO Gui-ying |
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| Institution: | FU Ding,WANG Qing-lin,MA Han-yun,HUO Er-wei,SHEN Guang-hui,GUO Gui-ying(Xinyang Institute of Agricultural Science,Xinyang 464000,Henan,China) |
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| Abstract: | Based on principal component analysis,the major economic traits of 40 II you hybrid rice combinations were analyzed.The results showed that the greatest contribution factor was the number of grains per panicle,the second was ear length and grain weight,and the contribution of effective panicle number was relatively small.Therefore,the approaches of high yield for II you hybrid rice combinations included improving the panicle size and increasing grain weight on the basis of appropriate number of spikes. |
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| Keywords: | II you hybrid rice combinations yield principal component analysis yield-increasing approach |
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