Breeding a Giant Embryo and Multi-disease-resistant Rice Cultivar, ‘Drimi4ho’

Other SectionsAbstractRice is an important food crop that feeds most of the world's population. However, due to increased frequency pest outbreaks, it necessary cultivate complex pest-resistant rice cultivars. A mutant population was derived by culturing tissue ‘Hwayeong’ at Plant Molecular Breeding laboratory Kyungpook National University in Republic Korea. The cultivar ‘Drimi4ho’, a line resistant disease, finally selected backcrossing with ‘Junam’. heading date ‘Drimi4ho’ August 11 (107 days after sowing). Drimi4ho’ has culm length 69 cm, panicle 21 16 panicles per hill, 115 spikelets panicle, ratio ripened grain 92.7%, and 1,000-grain weight 24.3 g. No lodging occurred when grown field standard fertilization. It also leaf/neck blast bacterial blight (K1, K2, K3), dwarf virus, black-streaked stripe BPH, SBPH. round short-type grain, very clear transparent without chalkiness. In addition, excellent physicochemical properties make up food, so its taste good. When planted under ordinary conditions southern mountainous area Korea, yield 5.53 MT/ha (Registration No. 6124).Keywords : rice, Drimi4ho, culture, multi-resistant, quality