METHOD FOR BREEDING BRASSICA NAPUS VARIETIES AND MATERIALS BY MEANS OF RAPE DOUBLED HAPLOID INDUCER LINE

摘要

The present application provides a method for breeding Brassica napus by means of a rape doubled haploid inducer line, comprising: 1) determining target traits of restorer line, maintainer line, and conventional variety breeding of Brassica napus; 2) performing crossing or convergent crossing on two or more Brassica napus plants having the target traits; 3) pollinating cross or backcross progenies by means of the rape doubled haploid inducer line; 4) identifying the stability of induced progenies; 5) performing testcross identification or yield and resistance identification on stable progenies; and 6) forming a stable restorer line and a stable maintainer line to enter crossbreeding combination, or forming a conventional variety.