中国农学通报2025，Vol.41Issue(1)：8-12,5.
玉米植株性状的分离特征研究
Separation Characteristics of Maize Plant Traits
摘要
Abstract
In order to study the separation characteristics of plant traits in maize,ten maize inbred lines from different sources were selected for cross-mating,and two 8-parent hybrid F1 segregated populations A and B were obtained. The phenotype of five plant traits of the segregated populations was identified,and the correlation analysis and path analysis between plant traits were carried out. The results showed that the variation coefficient of plant height in two segregating populations was large,and the coefficient of variation was 10.34% and 10.54% . Correlation analysis showed that the plant height showed extremely significant positive correlation with ear height,tassel length and average length of internode above ear,and tassel length showed extremely significant positive correlation with average length of internode above ear in two segregated populations. But the correlation between other plant traits of the two populations was not completely consistent. The path analysis showed that the ear height,tassel length and average length of internode above ear had significant positive direct effect on plant height. The tassel length had a large positive indirect effect on plant height through the average length of internode above ear. This study analyzed the relationship between plant traits,which could provide reference for genetic improvement of plant traits in maize.关键词
玉米/植株性状/分离群体/杂交组配/表型鉴定/相关分析/通径分析Key words
maize/plant traits/segregating population/cross-mating/phenotype/correlation analysis/path analysis分类
农业科技引用本文复制引用
史庆玲,张静雯,张鑫悦,霍冰,董永彬..玉米植株性状的分离特征研究[J].中国农学通报,2025,41(1):8-12,5.基金项目
河南省重大公益专项"机收玉米新品种选育及配套生产技术研究"(201300111100) （201300111100）
河南省自然科学基金"玉米粒重主效位点qGW1.05候选基因的功能鉴定"(212300410356). （212300410356）
