【摘要】 分析了玉米和紫苜蓿的五个双列杂交试验,结果表明,在采用稳定材料进行两种配合力的研究中,除个别性状外.其余各性状均表现GCA(一般配合力)×环境互作大于SCA(特殊配合力)×环境互作而SCA的SSs/(SSs+SSsc)×100比值小于GCA的SSg/(ssg+SSgc)×100,说明在不同环境中GCA较SCA稳定.但两种配合力与环境互作同相应主效的比值表现出SCA大于GCA的趋势.放在不同环境中应着重测定GCA,而在特定环境中则不能忽视SCA的测定.GCA与环境的工作主要是不同环境中方差值的变化所致,其本质则是生态因素对性状影响的差异.更多还原

【Abstract】 Five diallcl cross trails of corn and luccrn were made by using stable materials .to study their two kinds of combining abilities. The results indicated that all characters showed this tendency: GCA× E>SCA× E, except a lew characters, but SSs / (SSs+SSsc)< SSg/ (SSg+SSge). It was explained that GCA was more stable than SCA in various environments. Because the ratio of interaction of the two combining abilities to the main effects showed a tendency of (SCA × E)/ SCA>(GCA × E)/ GCA, the GCA should be a center to be tested in various environments, but SCA should not be neglected in special environments. The interaction of GCA × E was mainly caused by the change of variance value in different environments, in essence, by the difference in effects of ecological factors to the characters.更多还原