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用表观收获指数和粒茎比不同的12个亲本配制11个组合,对其后代表观收获指数和粒茎比进行了研究。结果表明,大豆F_1代表观收获指数和粒茎比存在一定的杂种优势,其优势程度因组合而异。表观收获指数和粒茎比在F_2代均呈广泛分离,多数组合表现出超亲现象,其遗传属于数量性状遗传,无母体效应。F_2、F_3代,表观收获指数和粒茎比与中亲值相关显著。F_2代表观收获指数和粒茎比的广义遗传力分别平均为46.19％和37.47％。可将表观收获指数和粒茎比(?)入高产育种、高光效育种和株型育种的选择指标。
Eleven combinations were prepared from 12 parents with different apparent harvest index and grain-stem-stem ratio. The harvest index and grain-stem ratio of the representative representative were studied. The results showed that the F_1 representative of soybean showed that the harvest index and grain-stem ratio had some heterosis, and the degree of advantage differed with the combination. Apparent harvest index and grain stem ratio were widely separated in F_2 generations, most of the combinations showed the phenomenon of super-progeny, the genetic inheritance of quantitative traits, no maternal effect. F_2, F_3 generation, apparent harvest index and grain stem ratio were significantly correlated with the pro-value. The average heritability of F_2 stands for the average of 46.19% and 37.47%, respectively. Apparent harvest index and grain-stem-to-shoot ratio (?) Can be selected as the selection index for high-yield breeding, high-efficiency breeding and plant-type breeding.