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用国外引进的两个甘蓝型油菜品种 Ｂｒｏｎｇｏｒｏ 和 Ｗｅｓｔａｒｄ 的杂交后代与甘蓝型人工合成系杂交获得了雄性不育株， 与不同的人工合成系回交转育， 培育出了一批新质源细胞质雄性不育系， 暂定名为 Ｂｒｏ ｃｍ ｓ胞质雄性不育系。对这批不育系的育性表现、不育基因的遗传特点和杂种优势利用进行初步研究。结果表明， 该胞质雄性不育系属于高温不育类型， 在秋后迟播或在高海拔区 （２６００ｍ 以上） 春播的情况下， 不育系可达到完全不育程度。在较低温度条件下生长发育时， 大部分植株有微量花粉，微量花粉中含有较多的有生活力花粉，变化范围为１７３６％ ～８６８４％ 。对己稳定 Ｂｒｏ ｃｍ ｓ雄性不育系的初步遗传研究表明， 不育特性受一对隐性核基因与不育胞质互作控制， 其可恢性好。 Ｂｒｏ ｃｍ ｓ 不育系还表现出较高的一般配合力。
The male sterile lines were obtained from the hybrid progeny of two Brassica napus cultivars Brongoro and Westard imported from abroad and crossed with the Brassica campestris plants and backcrossed with different synthetic lines to produce a number of new cytoplasm Male sterile line, tentatively named Bro cm s cytoplasmic male sterile line. Fertility of these lines of sterile performance, genetic characteristics of the sterile gene and the utilization of heterosis preliminary study. The results showed that the cytoplasmic male sterile lines belonged to the type of high temperature infertility, and the sterile lines could reach the level of complete sterility when they were late sowed in autumn or spring sowed in the high altitude area (above 2600m). When grown at lower temperatures, most plants had micro-pollen and micro-pollen contained more viable pollen, ranging from 1736% to 8684%. Preliminary genetic studies on stable male sterility Bro cm s male sterile lines show that sterility is well controlled by the interaction between a pair of recessive nuclear genes and sterile cytoplasm. Bro cm s CMS also showed higher general combining ability.