Development of new broccoli varieties from elite lines obtained by microspore cultivation method

摘要: Since the year 2000, production and consumption of broccoli have rapidly increased in Korea. And, average area amount were about 1,700 ha 29,000 ton for past 5 years. Even with increase these cultivation consumption, more than 95% seeds are currently imported from foreign countries such as Japan Netherlands. Therefore, development domestic varieties is needed to relieve Korean farmers’ cost broccoli. In this situation, National Institute Horticultural Herbal Science (NIHHS) Korea has tried develop F1 hybrid elite lines that obtained by microspore method 2008. As results, 850 self-pollinated. Then their ploidy levels genome confirmed select double haploid (D.H.) lines. And D.H. lines’ horticultural traits evaluated open field. After selection 17 lines, they cross-pollinated a male sterile (MS) line produce seeds. 2 3 years field trials at Suwon, Gangneung, Jeju respectively, two ‘Wongyo8011’ ‘Wongyo8012’ selected application variety protection. With 4 research, we found powerful tool conventional breeding program, especially various inbred even short time.