大豆数量性状的多元遗传分析  

Multivariate Genetic Analyses of Quantitative Characters of soybean

作　　者：王友华[1] 余飞[1] 许海涛[1] 许波[1] 

机构地区：[1]河南省驻马店市农业科学研究所,463000

出　　处：《农业科技通讯》2008年第10期64-67,共4页

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。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 of 60.93%,34.40% and 27.89% ,and variations scale and pods per plant were the greatest, with a value 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.

关 键 词：大豆 农艺性状 遗传变异 相关性分析 主成分分析 

分 类 号：S565.1[农业科学—作物学] Q348[生物学—遗传学]