安徽农业科学2025，Vol.53Issue(19)：19-23,48,6.DOI:10.3969/j.issn.0517-6611.2025.19.004
玉米组合耐阴性鉴定及评价
Identification and Evaluation of Shade Tolerance in Maize Combinations
摘要
Abstract
To explore the identification methods,indicators and the relationship between shade-tolerant maize hybrids and inbred lines,we uti-lized 11 maize inbred lines that varied from strong to weak shade tolerance as parents to create 30 maize hybrids using incomplete diallel hy-bridization model.A field shading method was employed to simulate low light conditions in field experiments.Systems analysis methods,inclu-ding principal component analysis,membership function analysis and cluster analysis,were used to systematically investigate the variation in 11 indicators,such as plant morphology,biomass production and yield under shaded conditions.We evaluated the shade tolerance of the hybrids and their relationship with the shade tolerance of the inbred lines.The results indicated that total dry weight,plant height and yield were suit-able indicators for evaluating shade tolerance in maize inbred lines.The 30 hybrids were classified into strongly shade-tolerant(7 hybrids),moderately shade-tolerant(13 hybrids)and weakly shade-tolerant(10 hybrids)groups.For breeding strongly shade-tolerant varieties,it was advisable to avoid using weakly shade-tolerant materials as parents.This research provided a new approach for the selection and breeding of shade-tolerant maize varieties.关键词
玉米组合/耐阴性指标/主成分因子分析/隶属函数法/聚类分析Key words
Hybrid maize combination/Shade-tolerance index/Principal component analysis/Membership function method/Cluster analysis分类
农业科技引用本文复制引用
王小博,常晓,刘柏林,杨兆生,李健..玉米组合耐阴性鉴定及评价[J].安徽农业科学,2025,53(19):19-23,48,6.基金项目
安阳市科技攻关项目(2022C01NY014) （2022C01NY014）
新疆维吾尔自治区自然科学基金项目(2021D01A196). （2021D01A196）
