一、玉米品质育种的进展:谷物品质的优劣,既取决于蛋白质的含量,又取决于蛋白质的品质。玉米籽粒蛋白质含量一般10%左右,低于小麦(13—14%),高于水稻(7—9%)。由于玉米籽粒中醇溶蛋白占粗蛋白总量的50—60%,而醇溶蛋白中缺乏人、畜体内所需的赖氨酸和色氨酸,所以,玉米籽粒的营养品质不佳。通过育种手段改良玉米蛋 First, the progress of corn breeding quality: the quality of cereals, both depends on the protein content, but also depends on the quality of the protein. Corn protein content of about 10%, lower than wheat (13-14%), higher than rice (7-9%). Due to the fact that gliadin accounts for 50-60% of the total crude protein in maize kernels, and the lack of lysine and tryptophan required by humans and carcasses in prolamins, the nutritional quality of maize kernels is poor. Improve the corn egg by breeding