| 大豆数量性状的多元遗传分析 |
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| 引用本文： | 王友华,余飞,许海涛,许波.大豆数量性状的多元遗传分析[J].农业科技通讯,2008(10). |
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| 作者姓名： | 王友华 余飞 许海涛 许波 |
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| 作者单位： | 河南省驻马店市农业科学研究所,463000 |
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| 摘 要： | 以国家黄淮海区试南A组11个大豆品种为材料,对12个主要农艺性状进行变异系数、相关性和主成分分析,结果表明:有效分枝、倒伏级和单株荚数的变异系数较大,分别为60.93%、34.40%和27.89%,生育期的变异系数最小为4.17%;在相关性上,小区产量与单株粒重呈极显著正相关,株高、单株荚数、单株粒数和每荚粒数也与小区产量呈正相关;主成分分析结果表明,前4个主成分对变异的累计贡献率达92.16%.在性状选择上,首先对变异大的性状进行选择是非常重要的.在品种选择上,应注意选择产量和单株粒重、单株荚数、单株粒数、每荚粒数均高的品种.
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| 关 键 词： | 大豆 农艺性状 遗传变异 相关性分析 主成分分析 |
Multivariate Genetic Analyses of Quantitative Characters of soybean |
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| Authors: | YU Fei WANG Youhua XU Haitao XU Bo |
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| Abstract: | The genetic variation,correlation and principal component of 12 agronomic characters of 11 soybean varieties of south group A in Huanghuaihai region were analyzed.The result showed that the variations of No.of branches per plant,lodging scale and pods per plant were the greatest,with a value of 60.93%,34.40% and 27.89%,and variations of growth period were the least,with a value of 4.17%.correlation analysis indicated that there was a significantly positive correlation between yield per plot and seed weight per plant,and there was also a positive correlation tends among plant height,pods per plant,NO.of seeds per plant,seeds per pod and yield per plot.principal component analysis showed that the first four principal components accounted for 92.16% of total variation.It is very important to select these agronomic characters which have bigger variant coefficient and have high yield,Seed weight per plant,pods per plant,NO.of seeds per plant,sweeds per pod. |
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| Keywords: | Soybean Agronomic character Genetic variation Correlation analysis Principal component analysis |
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