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选用６个自交系为测验种，采用ＮＣＩＩ遗传交配设计，对以我国西南地区优良玉米地方种质 巫溪１４，兰花早和北美，热、亚热带种质为主体的人工合成群体ＬＢＭ、ＷＢＭ、ＬＬＳ、ＷＬＳ和两个美国 优良群体ＢＳＳＳＲ、ＢＳ１６等６个群体的配合力效应及遗传潜势进行了系统评估。两年两地（武汉、安阳） 的研究结果表明：ＬＢＭ、ＷＢＭ、ＷＬＳ群体的单株产量ＧＣＡ高于ＢＳＳＳＲ和ＢＳ１６；参试的３６个组合中 高产组合主要集中在以ＷＢＭ、ＷＬＳ、ＬＢＭ为亲本之一的组合中，其中以ＷＢＭ × ＨＺ８５产量最高；根 据ＳＣＡ效应及产量表现，确定了若干杂种优势配对模式；杂种优势类群的划分存在明显的交叉，表明 人工合成群体遗传变异丰富、遗传基础复杂，具有较好的轮回选择及组配优势组合的遗传潜势。
Six inbred lines were used as test species and the NCII genetic mating design was used to study the genetic diversity of LBM, WBM, LBM and so on, which are mainly composed of elite maize germplasm Wuxi Wuxi 14, early orchid and North American, hot and subtropical germplasm in Southwest China. LLS, WLS and six US good groups BSSSR, BS16 and other six groups of the combining ability effect and genetic potential were systematically assessed. The results of two years (Wuhan, Anyang) showed that the single plant yield GCA of LBM, WBM and WLS was higher than that of BSSSR and BS16. The middle and high yield combinations of 36 combinations mainly focused on WBM, WLS and LBM Among them, the highest yield of WBM × HZ85 was obtained. Based on the SCA effect and yield performance, several dominant heterosis pairing patterns were identified. There was a clear crossover of the heterosis groups, which indicated that the genetic variation of the synthetic population was rich and the genetic basis Complex, with better genetic selection for reincarnation and combinations of combinations.