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邯郸地区夏玉米三分之二是麦垄套种,近年收麦后夏播有发展之趋势。因此,我们育种的主攻目标确定为夏播,中早熟,生育期90天左右,抗玉米大小斑病和青枯病,高产(亩产千斤)。一、研究过程及结果(一)亲本材料:用北京市农科院育成的自交系——黄早四做母本。黄早四是从唐四平头杂棵里选育出的,具有植株较矮、叶片短而上冲、抗大小斑及青枯病、配合力高
Two-thirds of summer maize in Handan is a wheat ridge intercropping. In recent years, summer sowing has received the development trend. Therefore, we set the main target of breeding as summer sowing, middle-early maturing, and maturing period of about 90 days, resistance to corn-sized leaf spot and bacterial wilt, and high yield (yield per mu). First, the research process and results (A) of the parent material: Inbred line bred with Beijing Academy of Agricultural Sciences - Huang Zao Si as the female parent. Huangzao 4 was bred from Tangsan Heterolith, with short plants, short and upright leaves, anti-spot and bacterial wilt, high combining ability