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The hybrid maize variety Hongdan NO.3 was examined by the Yunnan Province crops variety examination and approval committee. The Hongdan NO.3 can widespread use, but it characteristics and technical research limits its promotion. Therefore, we carried on a series of experiments. It shows as followed:About the characteristics of the inbred lines that, the female parent:the seedling growth potential is strong, compact, male and female meet better, late-maturing, the grain for semi-rigid type, the color of the grain is yellow. The male parent:the seedling growth potential is strong, loose, male and female meet better, late-maturing, and the grain for semi-rigid type, the color of the grain is yellow.About the breeding research of the inbred lines that, the female parent density 67500-75000/hm2, the male parent density 60000-67500/hm2.About the characteristics of the hybrid maize variety Hongdan NO.3 that, it’s a high yield variety and resistant variety, the protein, crude fat, lysine and unit weight is more than the national standard of edible maize and forage maize, and the crude protein content and unit weight has reached the national standard of high quality protein maize.About the supporting technology research of the hybrid maize variety Hongdan NO.3 that, it suit early sowing, its suitable sowing time is later than April 15th, before May 25, the early sowing to obtain high yield, The most suitable density is 60000/hm2. About suitable quantity fertilizer test indicated that, it has best yield with N 200kg, P2O5 150kg, K2O 150kg per hectare.About the breeding technology of the hybrid maize variety Hongdan NO.3 that, the first phase male parent sows seeds at the 3 days after sowing of female parent, after another male parent 5-6d planted again, suitable female father line is 4:1, the female parent density is 68000/hm2, the male parent density is 9000/hm2.Through the research, the author attempts to grasp characteristics of the inbred lines and the hybrid maize, develop a suitable cultivation techniques and seed production techniques, has provided the essential scientific basis for its high production cultivation and the big area promotion application.
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