黑龙江农业科学Issue(9)：9-13,5.DOI:10.11942/j.issn1002-2767.2015.09.0009
黑龙江省三江地区几个早熟玉米自交系主要农艺性状的配合力和遗传参数分析
Analysis on Combining Ability and Genetic Parameters of Early Maturing Maize Inbred Lines of Sanjiang Plain
摘要
Abstract
In order to rationally use early maturity inbred lines and equip hybrid combinations of early maturity , high yield and high quality .Ten major early maturity inbred lines from Sanjiang Plain of Heilongjiang province were used as experimental materials .According to Griffing4 mode ,diallel cross was conducted ,combining abili‐ty and genetic parameters on 12 main agronomic traits of 45 combinations ,the grow th period ,plant height ,ear height ,ear length ,ear diameter and yield per plant were analyzed .The results indicated that GCA variance of all characters reached significant or extremely significant level ,the SCA variance of other various characters did except that of growth period ,barren ear tip lengt ,100 grain weight and seed‐producing percentage .The vari‐ance of GCA was higher than that of SCA .There were four inbred lines had a better comprehensive characters among 10 inbred lines ,which were He 344 ,Hexi 640 ,KWS73 and 9F592 .Other inbred lines also possessed their own highlight characters ,which should be purposefully selected to use in breeding work .The inbred line K10 had the largest variance of yield SCA ,which was possibly selected to breed super‐high‐yield hybrid combi‐nations .The genetic effect of 12 characters was given priority to additive effect .The narrow sense heritability of grow th period ,ear height ,ear length ,spike thick ear diameter ,row number per ear ,grain number per row and 100‐grain weight were more than 50% ,whose variation mainly caused by heredity .These characters were fit to be selected in early generations .However ,the narrow sense heritability of plant height ,barren ear tip lengt ,grain weight per ear ,the seed‐producing percentage and yield per plant were low ,which should not be se‐lected in early generations .关键词
三江地区/早熟玉米自交系/配合力/遗传参数Key words
Sanjiang Plain/precocious inbred lines/combining ability/hereditary parameter分类
农业科技引用本文复制引用
李宁辉,宋雯雯,齐凤坤,孟凡祥,王立秋,樊伟民,张洪权..黑龙江省三江地区几个早熟玉米自交系主要农艺性状的配合力和遗传参数分析[J].黑龙江农业科学,2015,(9):9-13,5.基金项目
黑龙江省农业科技创新工程种子创新基金资助项目 （）
