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本文对广东省７个主要玉米自交系的配合力和遗传参数进行了综合分析，结果表明：泰苏黄、粤２０－３－１等亲本有关数量性状具有较高的ＧＣＡ，而泰苏黄×粤２０－３－１等组合表现较高的ＳＣＡ，有希望出现高配合力的组合。同时表明，广东省玉米杂种优势主要表现为单株产量的加性基因效应，因而在该省选育强优组合，应加强二环系的选育，组配出适应于本省气候条件的高产优质组合，是促进玉米生产的快速而有效途径。
In this paper, we analyzed the combining ability and genetic parameters of seven major maize inbred lines in Guangdong province. The results showed that the quantitative traits of GCA were higher in the parents such as Taisuhuang and Guangdong 20-3-1, × Guangdong 20-3-1 and other combinations show a higher SCA, there is hope that the combination of high with force. At the same time, it showed that the maize heterosis in Guangdong mainly showed the additive gene effect per plant yield, therefore the selection and selection of strong and excellent combinations in this province should strengthen the breeding of the second ring system and produce the high yield and quality adapted to the climatic conditions of this province Combination is a fast and effective way to promote corn production.