湖北农业科学2026，Vol.65Issue(6)：14-19,25,7.DOI:10.14088/j.cnki.issn0439-8114.2026.06.003
高产杂交棉冈0996和冈杂棉10号F1的杂种优势及相关性分析
Heterosis and correlation analysis of high-yield hybrid cotton varieties Gang 0996 and Gangzamian 10 F1
摘要
Abstract
To elucidate the heterosis mechanism of high-yield hybrid cotton varieties Gang 0996 and Gangzamian 10,experiments were conducted using these two hybrids and their parental lines.By comparing their differences in yield traits,agronomic traits,fiber quality,and related traits of subtending leaves of cotton bolls with their parents,the heterosis was systematically evaluated.Combined with correlation analysis,the main morphological factors affecting high yield in hybrid cotton were explored.The results showed that the heterosis rates of total subtending leaf area,subtending leaf area of opened bolls,and average boll leaf area of Gangzamian 10 reached 12.14％,9.74％,and 9.42％,respectively,with an over-parent heterosis rate of 3.19％for total subtending leaf area.During the whole cotton boll development stage,the relative chlorophyll content(SPAD value)in subtending leaves of cotton bolls of the two hybrids remained at a high level continuously.In terms of yield,the heterosis rates of seed cotton yield for Gang 0996 and Gangzamian 10 were 19.50％and 19.99％,respectively,with over-parent heterosis rates both exceeding 17％,and the heterosis rates of lint yield were 19.52％and 24.76％,respectively.For fiber quality,the heterosis rate of breaking strength of Gangzamian 10 was 9.00％,with an over-parent heterosis rate of 6.60％.Coefficient of variation analysis indicated that the two hybrids exhibited relatively large varia-tions in traits such as total subtending leaf area,lint yield,and seed cotton yield.Correlation analysis demonstrated that seed cotton yield was significantly positively correlated with single boll weight and fiber uniformity index,and extremely significantly negatively correlated with growth period.This study revealed that the two high-yield hybrid cotton varieties achieved high yield and superior qual-ity through the synergistic advantages of optimized leaf area,photosynthetic performance,yield components,and fiber quality.关键词
高产杂交棉/冈0996/冈杂棉10号/杂种优势/农艺性状/产量性状/纤维品质/相关性分析Key words
high-yield hybrid cotton/Gang 0996/Gangzamian 10/heterosis/agronomic traits/yield traits/fiber quality/correla-tion analysis分类
农业科技引用本文复制引用
闫振华,罗真,戴宝生,赵树琪,何涛,张华崇,黄晓莉,张欣,李蔚..高产杂交棉冈0996和冈杂棉10号F1的杂种优势及相关性分析[J].湖北农业科学,2026,65(6):14-19,25,7.基金项目
湖北省现代农业产业技术体系——棉花产业技术体系项目(2025HBSTX4-11) （2025HBSTX4-11）
黄冈市青年拔尖人才培养项目 （）
湖北省农业科技创新中心资助项目(2021-620-000-001-06) （2021-620-000-001-06）
