中国农业科学院作物育种栽培研究所培育出的优质蛋白玉米，不仅产量超过普通杂交玉米，而且玉米子粒蛋白质含量高，因而成为一种质量型的换代产品。优质蛋白玉米的蛋白质营养品质高于普通杂交玉米。它的赖氨酸、色氨酸含量比普通玉米高80％至1倍，蛋白质品质与牛奶蛋白相同，其 Chinese Academy of Agricultural Sciences Institute of Crop Breeding and Cultivation of high-quality protein corn breed, not only the output of more than normal hybrid corn, corn and corn protein content is high, and thus become a quality of the replacement product. The protein nutritional quality of high quality protein corn is higher than that of common hybrid corn. Its lysine, tryptophan content of 80% to 1 times higher than normal corn, protein quality and milk protein the same, its