12份玉米自交系主要农艺性状配合力及杂种优势分析  

Analysis on Combining Ability and Heterosis of Main Agronomic Characters of 12 Maize Inbred Lines

作　　者：高若禹 刘鑫[1] 邓昆鹏 王野[1] 赵仁贵[1] 

机构地区：[1]吉林农业大学,长春130118

出　　处：《东北农业科学》2016年第3期14-17,共4页Journal of Northeast Agricultural Sciences

基　　金：国家星火计划项目(2015GA660007);吉林省农业委员会科研项目(2015032)

摘　　要：通过分析玉米地方种质自交系的配合力,可以了解自交系的应用价值,为新品种选育提供技术支撑。本文利用12份玉米自交系,采用NCII设计,对主要农艺性状遗传参数及配合力分析和杂种优势分析。结果表明:自交系354、355及C1、C2自交系具有较大育种潜力,352×C4是产量性状SCA表现良好的组合。与对照比较,杂种优势大于8%的组合多为354、355与C1、C2、C5所配组合。This study was carried out to analyze the combining ability of inbred lines from local maize germplasm in order to provide the theoretical basis for assessing potential value of inbred lines. The materials included 12 inbred lines, which were test-cross with CK inbred lines in a NCII design. Main agronomic characteristics of 12 inbred lines, their combining ability and heterosis were analyzed. The results showed that the inbred lines 354, 355, C1 and C2 had a good performance in GCA of yield and related traits. The crosses of 352×C4 had higher SCA effects. Compared with the control, hybrids with heterosis 〉8% for yield were the crosses between 354, 355 and C1, C2, C5.

关 键 词：玉米 自交系 配合力 杂种优势 遗传参数 

分 类 号：S513[农业科学—作物学]