利用甘蓝自交不亲和系配制杂交种子,手续简便,纯度高,F_1代丰产优质,抗逆性强,对提高甘蓝生产水平起重要作用。但过去繁殖自交不亲和系亲本种子,都采用人工剥蕾授粉方法,费工又麻烦,限制了该项技术的进一步推广。 1987年,我们根据有关杂志报导,在新泾、虹桥蔬菜良种场分别用3％、5％、7％ The method of preparing hybrid seeds by selfing incompatibility of cabbage has the advantages of simple procedures, high purity, high yield and high resistance in F_1 generation and strong resistance, and plays an important role in improving the production level of cabbage. However, in the past, self-incompatible lines were used to breed parental seeds, artificial pollination and pollination methods were used, which caused troublesome work and limited the further promotion of the technology. In 1987, according to the magazine’s report, we used 3%, 5%, 7%