Breeding method of novel cytoplasmic sterile line of cabbage type rapes

The invention belongs to the technical field of rape heterosis utilization and relates to a breeding method of a novel cytoplasmic sterile line of cabbage type rapes. According to the breeding method, an obtained sterile material is good in fertility stability, and the sterile strain rate and the sterility of the sterile material can reach 100 percent respectively. Rape hybridization is an effective path for improving the yield of rapes and solving the problem of national edible oil. Genetic resources of wild rapes in Xinjiang in China and cabbage type rapes are subjected to intergeneric hybridization to create the novel cytoplasmic sterile line, and therefore, the sterile cytoplasmic resources of rapes in China can be greatly enriched; and the breeding method has an important meaning in development of rape hybridization.