中国糖料2025，Vol.47Issue(3)：11-19,9.DOI:10.13570/j.cnki.scc.2025.03.002
甜高粱RIL群体农艺性状的主成分分析和综合评价
Principal Component Analysis and Comprehensive Evaluation of Agronomic Traits in Sweet Sorghum RIL Population
摘要
Abstract
[Objective]In order to select and develop new germplasm resources with breakthroughs in desirable comprehensive traits of sweet sorghum,a recombinant inbred line(RIL)population was constructed with sweet sorghum RIO and the restoration line LR625 as parents and its six agronomic traits were comprehensively evaluated.[Methods]The sweet sorghum RIL population was analyzed and evaluated using principal component analysis and cluster analysis.[Results]The results showed that the six agronomic traits in the RIL population were rich in variation,and there were highly significant positive,significant,or significant negative correlations among different traits,and the correlations were complicated.Three common factors were identified by principal component analysis,in which biomass yield per plant,plant height and sugar content of stem were the main influencing factors.Based on the comprehensive evaluation scores,eight excellent sweet sorghum progeny lines were screened out of 76 materials.Based on the cluster analysis,the 76 materials were divided into three clusters,of which seven materials in cluster II had high breeding value.[Conclusion]The results of cluster analysis were consistent with the results of principal component analysis,and the family lines 59,67,42,60,38,and 64 were selected as sweet sorghum germplasm resources with more excellent biomass yield per plant,plant height and sugar content of stem in taxon Ⅱ.The present study can provide a reference for the comprehensive evaluation of progeny selection of sweet sorghum germplasm resources and the use of selection in sweet sorghum crossbreeding.关键词
高粱/农艺性状/相关关系/主成分分析/聚类分析Key words
sorghum/agronomic traits/correlation analysis/principal component analysis/cluster analysis分类
农业科技引用本文复制引用
段有厚,张旷野,赵泽阳,赵家铭,卢峰..甜高粱RIL群体农艺性状的主成分分析和综合评价[J].中国糖料,2025,47(3):11-19,9.基金项目
现代农业产业技术体系项目(CARS-06-14.5-A11、A22) （CARS-06-14.5-A11、A22）
辽宁省藏粮于技重大专项(2023JH1/10200001) （2023JH1/10200001）
辽宁省博士科研启动基金计划项目(2022-BS-047) （2022-BS-047）
沈阳市科技局沈阳市中青年科技创新人才项目(RC220463)资助. （RC220463）
