前言动植物育种中应用数量遗传理论收效较好的是在家畜家禽和玉米方面,成效较大的主要原因,在于这些动植物都是选育出优良的近交系或自交系后,进行配合力测验和严谨的选择而利用其杂种一代。近年来,我国不少研究人员在稻麦等自花传粉作物的杂交 Introduction The main reason why the application of quantitative genetic theory in animal and plant breeding has a good effect on livestock and poultry and corn is that these plants and animals are bred with excellent inbred lines or inbred lines Force test and rigorous choice to take advantage of their hybrid generation. In recent years, many researchers in our country have self-pollinated crops such as rice and wheat