大豆葉型에 關한 遺伝硏究 Ⅴ. 葉形質에 대한 組合能力의 檢定

Genetic Studies on Leaf Shapes in Soybeans Ⅴ. General and Specific Combining Abilities of Some Characters of Soybean Leaf Parts

Seven soybean varieties and 21 F₂ hybrids by the diallel crosses among these parent varieties were used as the materials, and combining ability test was conducted for many characters of leaf parts of soybeans. Partial dominance was exhibited by the petiole length of trifoliates and terminal leaflets, length of terminal and lateral leaflets, and width of terminal and lateral leaflets, etc. Differences among crosses in apparent degree of dominance existed for many of the characters. Mean square values of general combining ability were greater than those of specific combining ability for eight characters estimated, the effect of GCA were different among parents and characters, and the effects of SCA were also different among parents, characters and crosses.