安徽农业科学2023，Vol.51Issue(24)：38-40,44,4.DOI:10.3969/j.issn.0517-6611.2023.24.009
玉米联合体昭通试点45个参试品种产量和穗部性状表现及相关通径分析
Performance and Correlation Path Analysis of Yield and Ear Characters of 45 Maize Varieties in Zhaotong Maize Regional Trials
摘要
Abstract
The correlation and path analysis were conducted on the grain yield and ear traits of 45 maize varieties tested in the maize regional trials from 2018 to 2021 in Zhaoyang of Zhaotong.Results showed that the grain yield,kernel rate,ear length,100-grain weight,kernels per row of the 45 tested varieties showed an upward trend,while the ear diameter and the ear rows did not change significantly,and the bare tip length showed a downward trend.Correlation analysis between grain yield and ear traits showed that the correlation coefficients of ear traits to grain yield were kernel rate(r=0.405)＞ear diameter(r=0.303)＞kernels per row(r=0.287)＞ear length(r=0.237)＞100-grain weight(r= 0.198)＞ear row(r=0.081)＞bare tip length(r=-0.173).Path analysis of grain yield and ear traits showed that ear diameter(0.412)＞kernel rate(0.402)＞ear length(0.148)＞100-grain weight(0.066)＞kernels per row(0.010)＞ear row(-0.078)＞bare tip length(-0.102).关键词
玉米新品种/产量/穗部性状/相关分析/通径分析Key words
New maize varieties/Yield/Ear traits/Correlation analysis/Path analysis分类
农业科学引用本文复制引用
张时军,施吉嵘,罗开勇,陈选贵,何雨烨,李啟菊,程金朋..玉米联合体昭通试点45个参试品种产量和穗部性状表现及相关通径分析[J].安徽农业科学,2023,51(24):38-40,44,4.基金项目
云南省科学技术厅重大科技专项"绿色、高效玉米新品种选育及产业化示范"(202102AE090023). （202102AE090023）
