Stock seed propagation method of broccoli

The invention belongs to the technical field of broccoli breeding, and particularly discloses a stock seed propagation method of broccoli. The method comprises the following steps: sowing in a seedling raising plate, managing until the broccoli has buds in the seedling raising plate, carrying out land selection, field planting, topdressing and pollination, and then the broccoli grows until seeds are harvested. According to the technical scheme, plant vegetative body can be weak, ball flowers become small and do not need to be cut, diseases and insect pets are controlled, pesticide treatment is convenient, the quantity of flowers after bolting and flowering is uniform, and the seedlings can be quickly transferred to a proper climate for pollination at an extreme temperature. 本发明属于松花菜育种技术领域，具体公开一种松花菜的原种繁殖方法，包括于育苗盘内播种，管理至松花菜在育苗盘中显蕾后，进行选地、定植、追肥、授粉后，生长至种子收获，通过本发明的技术方案可将植株营养体变弱，花球变小，不用割球，防治病虫害发生，药物处理方便，抽薹开花后花量均匀，极端温度下可迅速转育至适合气候下授粉。