华北农学报2023，Vol.38Issue(z1)：154-160,7.DOI:10.7668/hbnxb.20194402
39份油用向日葵杂交种主要农艺性状与产量的多元分析
Multivariate Analysis of Main Agronomic Traits and Yield of 39 Oil Sunflowers Hybrids
摘要
Abstract
To explore the relationship between agronomic traits and yield of oil sunflowers and select new high-quality and high-yield oil sunflower varieties suitable for climate and planting mode of Hebei Province,genetic di-versity analysis,correlation analysis,systematic cluster analysis,and principal component analysis(PCA)were con-ducted on 14 traits of 39 oil sunflower hybrids.The research results indicated that the coefficient of variation for dif-ferent traits ranged from 2.50%to 32.37%.Among them,the coefficient of variation of grain weight per head was the highest,at 32.37%,with a variation range of 16.77-113.78 g.The coefficient of variation during the growth period was the smallest,only 2.50%.The yield was extremely significantly positively correlated with 100-grain weight,grain number per head,grain weight per head,grain volume weight,and plant height,and significantly posi-tively correlated with grain area,grain circumference,and grain length;Plant height was extremely significantly posi-tively correlated with 100-grain weight,grain area,grain circumference,grain length,grain width,and grain volume weight,and significantly positively correlated with grain weight per head.PCA divides the agronomic traits of differ-ent varieties into four principal components,which could be summarized as grain trait factors,yield factors,growth period and morphology factors,and grain volume weight factors,with a cumulative contribution rate of 81.939%.At a Chi-square distance of 1.05,39 materials were divided into 4 groups,among which groupⅠcontained 23 materials with excellent grain and yield traits,and was similar to the characteristics of groupⅠin the PCA scatter diagram.Based on the above data analysis,from the perspective of selection potential,the impact of traits such as grain weight per head,grain number per head,head diameter,plant height,and 100-grain weight on yield should be mainly considered.关键词
油用向日葵/杂交种/育种/性状/主成分分析Key words
Oil sunflower/Hybrids/Breeding/Traits/Principal component analysis分类
农业科学引用本文复制引用
李丹,赵存鹏,刘素恩,郭宝生,王凯辉,耿军义..39份油用向日葵杂交种主要农艺性状与产量的多元分析[J].华北农学报,2023,38(z1):154-160,7.基金项目
河北省农林科学院科技创新专项(2022KJCXZX-MHS-3) （2022KJCXZX-MHS-3）
河北省现代农业产业技术体系油料创新团队项目(HBCT2023030202) （HBCT2023030202）
