以青花菜和红甘蓝自交纯系进行杂交、自交和回交，研究其遗传规律。结果表明：杂交一代苗端具有明显偏父遗传现象；叶色紫红色对绿色为不完全显性质量性状遗传；结花球性表现为数量性状遗传 The broccoli and red cabbage selfing lines were crossed, selfed and backcrossed to study their genetic rules. The results showed that the hybrid generation had obvious genetic segregation of the father; the purple color of the leaves was inheritance of incomplete dominant quality;