多数杂种F_1种子都是通过手工去雄与授粉而得到的。与杂交有关的大豆花器官为萼片、花瓣、柱头和花药。当花芽初见时,只能看到绿色花萼,以后随着花的发育花瓣冒出花萼,展开为一朵小花。在展开的花瓣里有十个药围着一个雌蕊。雌蕊有一个柱头,尖端接受花药的雄性细胞(花粉)。柱头发育至少要比花药早熟一天,雌雄二性在发育上相差的时间 Most hybrid F_1 seeds are obtained by hand removal and pollination. The floral organs associated with hybridization are sepals, petals, stigma and anthers. When flower buds first see, you can only see the green calyx, later with the development of flower petals emerge calyx, expand to a flower. There are ten herbs around the pistils in the expanded petals. Pistils have a stigma, the tip of the anther male cells (pollen). Stigma development at least one day earlier than the anther, gender differences in the development of the time difference