抄録
Estimation of the gene number and the effects for the inheritance of primary leaf size of soybean were studied using six populations, P1, P2, F1, F2, and two backcrosses (P1B1 and P2B2). The two parents were found to be differentiated in this character by two effective factor pairs which seemed to be controlled by the intra- and inter-allelic interaction of genes. The dominance genetic effect was about twice as large as additive effect. Epistasis due to dominance × dominance effects was found. It was also found that the dominance effect of the two genes interacted to reduce the primary leaf area.
