鲜食糯玉米(Zea mays L.sinensis Kulesh)杂交种主要性状间的相关和通径分析  

Genetic Correlation and Path Analysis of Main Traits of Fresh Waxy Maize(Zea mays L. sinensis Kulesh) Hybrids

作　　者：王野 陈豪 郑艳 吴艳微 王雪 赵仁贵[1] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]吉林省农业综合信息服务股份有限公司,长春130033

出　　处：《分子植物育种》2017年第10期4196-4202,共7页Molecular Plant Breeding

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

摘　　要：本试验通过以35份糯玉米杂交组合为供试材料,对糯玉米的14个主要性状进行相关和通径分析,结果表明:鲜穗产量与单穗重、穗长、穗粗、轴重呈极显著正相关,相关系数分别为:0.753 8、0.515 7、0.551 5、0.476 5;与行粒数呈显著相关,相关系数为0.422 6。在诸多性状中,对鲜穗产量直接作用最大的性状为轴重,效应值为0.799 6;其次为单穗重,效应值为0.795 5;其它性状依次为穗粗>百粒重>穗位>秃尖长>株高>支链淀粉含量>轴粗>行粒数>茎粗>穗长>穗行数。In this research, the correlation and path analysis of 14 main traits of waxy maize were studied by using 35 waxy maize hybrid combinations as test materials, the related results showed that when the yield of fresh ear had significantly positive correlation with ear weight, ear length, ear diameter, and axle weight, the correlation coefficient was 0.753 8, 0.515 7, 0.551 5, 0.476 5, respectively, and the yield of fresh earhad significantly corre- lation with grain number per rows, the correlation coefficient was 0.422 6. In many characters, the most direct effect on the fresh ear yield traits was axle load, the effect value was 0.799 6; Followed by single panicle weight, the effect value was 0.795 5; Other traits were followed as ear diameter〉100 grain weight〉ear height〉bald tip length〉plant height〉amylopectin content〉shaft diameter〉grain number〉stem diameter〉ear length〉ear row number.

关 键 词：糯玉米 主要性状 相关系数 通径系数 

分 类 号：S513[农业科学—作物学]