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大豆各种数量性状的表现,是遗传基础和环境因素共同作用的结果。如果基因作用和环境作用是相互独立的,则各种差异满足如下关系:Vp(表现型方差)=Vg(基因型方差)+Ve(环境方差)。在数量性状的遗传学研究中,用生物统计的方法把表现型方差中的基因型方差和环境方差区别开来,所得遗传方差占表现型总方差的百分率称为遗传力:h~2(%)=遗传方差/总方差×100=Vg/(Vg+Ve)×100。可见,一个性状的遗传方差占表现型总方差的比重愈大,求得的遗传力数值愈高,说明该性状受环境因素的
The performance of various quantitative traits of soybean is the result of the combination of genetic basis and environmental factors. If the genetic and environmental effects are independent of each other, the various differences satisfy the following relationships: Vp (phenotype variance) = Vg (genotype variance) + Ve (environmental variance). In quantitative trait genetics studies, the genotypic variance and the environmental variance in phenotypic variances were identified by biometrics. The resulting genetic variance as a percentage of total phenotypic variance was referred to as heritability: h ~ 2 (% ) = Genetic variance / total variance × 100 = Vg / (Vg + Ve) × 100. Can be seen that the genetic variance of a trait accounted for the proportion of the total phenotypic variance, the higher the value of the heritability calculated, indicating that the traits by environmental factors