Abstract
Two new rootstock cultivars of melon (Cucumis melo L.) resistant to race 1,2y of Fusarium oxysporum f.sp. melonis were released. ‘Dodai No. 1’ was selected from a cross between ‘Melon Parental Line 1’ ((C. melo var. reticulatus Naud. × C. melo var. makuwa Makino) × C. melo var. reticulatus Naud.) and ‘Tokyo-wase (maruba)’ (C. melo L. var. conomon). ‘Dodai No. 1’ showed remarkable quantitative resistance to race 1,2y, moderate quantitative resistance to race 2 and true resistance to race 0 and race 1. The F1 cultivar ‘Dodai No. 2’ was developed as a hybrid of two melon cultivars, ‘Barnett Hill Favorite’ and ‘Dodai No. 1’. ‘Dodai No. 2’ showed moderate resistance to race 1,2y, true resistance to race 0, race 1 and race 2. Both cultivars can be effectively used as rootstock to control Fusarium wilt in melon fields infested by race 1,2y in Hokkaido.
