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我所玉米品质育种工作主要是利用已有的美国高 LYS(赖氨酸,下同)、高 TYP(色氨酸,下同)为材料,通过转育和选育的方法,选出适于我盟种植的高 LYS 自交系和杂交种,为改善我盟玉米的营养质量和加速畜牧业的发展提供高质量的混合饲料。具体要求是选出适于我盟2900—3100℃积温带种植的中早熟和中晚熟高 LYS、高 TYP 的自交系和杂交种。所选杂交种除具备推广种的优良特性外,产量应不低于普通型玉米的90%,LYS 含量超过普通型的50%以上。
The breeding of corn in our country mainly uses the existing high LYS (lysine, the same below), high TYP (tryptophan, the same below) as the material, through the method of breeding and breeding, The high-LYS inbreds and hybrids grown by our union provide high-quality mixed feeds for improving the nutritional quality of our maize and accelerating the development of livestock husbandry. The specific requirement is to select the suitable mid-late mature LYS and high TYP inbreds and hybrids suitable for the cultivation of 2900-3100 ℃ in our Union. In addition to the selected hybrids have the excellent characteristics of promoting species, the yield should not be less than 90% of ordinary corn, LYS content of more than 50% of ordinary type.