以Ｏｇｕｒａ不育胞质为供体，不同生育期花椰菜品种为受体，通过回交获得花椰菜异源细胞质雄性不育材料。该材料每世代均具有雄性不育特性，雄蕊主要呈戟形，少量呈瓣状、羽毛状、丝状及雄蕊心皮化，极少数花药具花粉粒，花粉粒开裂。回交转育克服了不育胞质供体存在雌蕊功能障碍、闭蕾、败蕾、柱头外露以及蜜腺缺失等缺陷。 Using Ogura sterile cytoplasm as donor, different growth stages of cauliflower were used as recipients, and the heterologous cytoplasmic male sterile materials of cauliflower were obtained by backcrossing. The material has male sterility in each generation. The stamens are mainly halberd-shaped with few petals, feathers, filiform and stamens carpelled. Very few anther pollen grains and pollen grains are cracked. Backcrossing overcame the infertility cytoplasmic donor pistil dysfunction, closed buds, lost buds, stigma exposed and missing nectaries and other defects.