中日大豆品种间杂交F2主要性状遗传参数分析

An Analysis of Parameters of Main Inheritable Characters in F2 Hybrids between Chinese Soybean and Japanese Soybean Varieties

摘要:

利用3个中国大豆品种和2个日本大豆品种杂交,对F₂群体主要性状的平均值及遗传参数进行分析。结果表明,各性状的变异因亲本的不同有明显差异。对产量性状而言,利用日本10品种配制的组合F₂变异幅度较小,而用日本9号品种配制的组合F₂变异幅度大,有较广阔的选择基础。

Abstract:

Three Chinese soybean and two Japanese soybean varieties were crossed and parameters of main inheritable characters in F₂ progeny were analyzed. Results shown that there were significant difference in variability of every character in progeny of different parents. Taking crop yield for instance, a little range of variance occurred in F₂ progeny when"Japanese 10"was used as a parent, whereas a large range of variance occurred in F₂ progeny when"Japanese 9"was used as a parent and the diversity made it easy to select an improved variety.