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一、兖黄一号:山东省农科院作物所用莒选23作母本,齐黄五号作父本,杂交育成。1975年引入我省,在武功两年试验结果,亩产258～303斤。主要特点是:生育期短,在武功1976年6月23日播种,10月6日成熟,生育期105天,比莒选23早熟5～6天,与夏玉米同时成熟。主茎粗壮,株形紧凑,有限结荚习性,株高65～75厘米,分枝2～3个,花白色,茸毛棕色,种皮黄色,脐深褐色,籽粒椭圆形,百粒重13～14克,抗倒伏。二、跃进四号:系山东省荷泽地区农
First, Yanhuang One: Shandong Academy of Agricultural Sciences crop selection 23 for the mother, Qi Huang fifth parent, cross breeding. Introduced in 1975 in our province, two years of martial arts test results, yield 258 to 303 pounds. The main features are: short growth period, the martial arts in June 23, 1976 sowing, October 6 maturity, growth period of 105 days, 23 than precocious puberty 5-6 days, and summer maize mature at the same time. Main stout stout, compact plant, limited pod habit, height 65 ~ 75 cm, branches 2 to 3, white flowers, brown hair, seed coat yellow, umbilical dark brown, oval seed, 14 grams, lodging resistance. Second, Yuejin IV: Department of agriculture in Heze, Shandong Province