玉米种质是玉米育种的物质基础,而育种要做对种质的利用最终归结为对性状配合力的选择。配合力的高低是衡量一个玉米自交系优劣的主要条件之一。选育出新的玉米自交系或是引进新自交系后,都要测定其配合力。 Maize germplasm is the material basis for maize breeding, and the utilization of germplasm for germplasm ultimately comes down to the choice of mateability. The level of combining ability is one of the main criteria to judge the pros and cons of a maize inbred line. After breeding new maize inbred lines or introducing new inbred lines, its combining ability should be determined.