6份CIMMYT玉米自交系穗部性状配合力分析

摘要

In this study, six CIMMYT maize inbred lines and five representative do-mestic maize inbred lines were used as parental lines. By using incomplete dial el cross design, 30 hybrid combinations were developed to analyze the general com-bining ability (GCA), specific combining ability (SCA) and total combining ability (TCA) of seven panicle traits in six CIMMYT maize inbred lines. The results showed that CIMBL98 and GEMS13 were excel ent inbred lines with good compre-hensive performance; CIMBL98 × 340 and GEMS13 × Chang 7-2 were superior combinations.%利用国内不同玉米（Zea mays L．）杂种优势群的5份代表自交系与来自 CIMMYT的6份自交系，按不完全双列杂交组配30个杂交组合，分析了6个自交系7个穗部性状的一般配合力、特殊配合力和总配合力。结果表明，CIMBL98、GEMS13两份自交系性状综合表现较优，是组配强优势组合的优良自交系， CIMBL98×340、GEMS13×昌7－2是较好的杂交模式。