Abstract:In order to provide a theoretical basis for breeding and using of Dominant Genic Male Sterility (DGMS) lines and improved Ogura Cytoplasmic Male Sterility (Ogura CMS) lines in broccoli, we compared the growth trend of the main agronomic traits and bouquet yield among DGMS lines, Ogura CMS lines and the F1 produced by them. In this study, DGMS 79-399-3 and improved Ogura CMSR3 629 were used as the original sources to get broccoli high generation (n ≥ 9) male sterile lines DGMS8554, OguraCMS8554, DGMS93219 and OguraCMS93219. Those materials with maintainer lines of 8554, 93219 and F1 produced by them were used to systematically study growth trend of the plants’ main agronomic characters and curd-related traits through observing the entire growth period regularly and drawing growth curve. Results showed that under the same genetic background, the growth trend of plant width, plant height, length of the outer leaves, number of the outer leaves were almost the same among maintainer lines, two types of sterile lines and the F1 produced by sterile lines. Plant width, plant height, length of the outer leaves all showed fast growth in early period, after slowing, and finally leveled off or slightly declining. The numbers of the outer leaves were increasing at first, after decreasing. The numbers of the lateral branches were different in different years to different genetic background. The appeared and harvested time of the two types of male sterile lines under same background and F1 produced by them were nearly the same, the curd yield traits were different, but the appearance quality traits of the curd performed the same, respectively. The broccoli sterile lines came from the two types of male sterile sources DGMS and improved Ogura CMS performed well, therefore, the two types of male sterile sources have important application value in broccoli crossbreeding.