玉米种质是玉米育种的物质基础,而育种工作对种质的利用最终归结为对性状的配合力的选择。几年来我们在收集评价鉴定玉米品种资源工作的基础上,着重开展了两方面的工作:(1) 以扩大丰富种质资源为目标的群体改良;(2) 对温带、热带、亚热带资源某些性状的数量遗传进行研究。希望能为育种工作提供可资利用的种质和信息。本试验为玉米种质数量遗传研究的部分结果。 Maize germplasm is the material basis of maize breeding, and the utilization of breeding in breeding work finally comes down to the selection of the combining ability of traits. In the past few years, we collected and evaluated the identification of maize varieties on the basis of resources, focusing on two aspects: (1) to expand the rich germplasm resources as the goal of community improvement; (2) of the temperate, tropical and subtropical resources The number of traits genetic research. Hope to provide access to breeding germplasm and information available. This experiment is part of the genetic study on the germplasm of maize.