一、粮食作物品质育种的必要性目前全世界生产的蛋白质总量为1.7亿吨,其中植物蛋白占88％,在植物蛋白中谷物占68.5％。因此,谷物蛋白在人类的营养中占有很重要的地位。我国当前食物消费与营养水平还低于世界水平,在膳食中蛋白质营养质量也较差。但是只想主要依靠动物性食物来迅速改善人们的食物结构是困难的。根据膳食构成的合理性和我国长期形成的以粮食和其他植物类食品为主的膳食特点,以 I. The Necessity of Breeding Quality Crops Currently, the total amount of protein produced in the world is 170 million tons, including 88% of plant protein and 68.5% of cereal protein. Therefore, cereal protein plays a very important role in human nutrition. The current level of food consumption and nutrition in China is still below the world standard, and the quality of protein nutrition in the diet is also poor. But just trying to rely mainly on animal foods to rapidly improve people’s food structure is difficult. According to the rationality of dietary composition and the long-term dietary characteristics of foodstuffs and other plant foods,