玉米新品种金岭青贮367的选育与特性评价

Breeding and Characteristic Evaluation of a New Silage Corn Cultivar‘Jinling Silage 367’

为培育短生育期、高产、优质的青贮玉米品种,满足有效积温≥2250℃地区畜牧业对青贮玉米的需求,以母本JL38-5与父本JL3892杂交育成了青贮玉米新品种金岭青贮367。其全生育期约105d,属早熟青贮玉米;全株粗蛋白含量8.59%,淀粉含量29.62%,均高于对照品种阳光1号,综合营养品质优于国家一级青贮玉米品质标准;品种比较试验结果显示,在种植密度67500株/hm2条件下,金岭青贮367的3年平均产量(鲜重)达85670kg/hm2,较对照品种高17.6%;抗逆性强,具有广泛适应性,在内蒙古及其毗邻地区均可种植。

In order to cultivate silage corn varieties with short-growth period, high-yield and high-quality silage and meet the needs of animal husbandry in areas with effective accumulated temperature ≥2250℃, a new silage corn variety ‘Jinling Silage 367’ was bred by crossing female parent JL38-5 and male parent JL3892, which is an early-maturing cultivar with a growth period of 105 days. The crude protein content and starch content of the whole plant was 8.59% and 29.62%, which were higher than those of the reference cultivar Yangguang No.1, and the comprehensive nutritional quality was better than the national first-class silage corn quality standard. The results of variety comparison test showed that the 3-year average fresh yield of ‘Jinling silage 367’ was 85670 kg/hm^(2), which was 17.6% higher than that of the control variety under the condition of planting density of 67500 plants/hm^(2). The cultivar ‘Jinling Silage 367’ had strong stress resistance and wide adaptability, which could be planted in Inner Mongolia and its adjacent areas.