配合力是玉米自交系的最重要的遗传性状之一。研究自交系配合力的高低对于有目的地级配杂交种，提高玉米杂交种产量有着重大意义。在近年玉米育种实践中多数育种工作者主张“测用结合以用为主”的育种方法。早在70年代曾普遍认为测定一般配合力只能用遗传基础复杂的群体做测验 Combining ability is one of the most important genetic traits in maize inbred lines. Studying the level of combining ability of inbred lines is of great significance for increasing the yield of maize hybrids with purposefully grading hybrids. In recent years, most breeders in maize breeding practice advocate the "combination of measurement with use-based breeding methods. As early as the 70s has generally agreed that the determination of general combining ability can only be used to test the genetic basis of complex groups