[A study on the inheritance of dried tofu output of soybean]

The P1, P2, F1, F2 and F2:3 in plant generation of three crosses of Liuhexiaoyeqing x Xinyixiaohedou, Shangraoganbusi x Huaiyinqiuhedou and Liuhexiaoyeqing x Nannong 73-935 were used to study the inheritance of dried tofu output. The results of the joint analyses of multiple plant generations showed a consistant one major gene plus polygene mixed inheritance model. The heritability values for dried tofu output were as high as 87.84%-99.98%. In plant generation F2:3 of these crosses, the heritabilities of major gene were 51.80%-61.85%, and those of polygene were 36.12%-48.03%. Therefore, both major gene and polygene effects were important and should be utilized in breeding program.