种子2026，Vol.45Issue(1)：88-96,9.DOI:10.16590/j.cnki.1001-4705.2026.01.088
基于DTOPSIS法和主成分分析法的甘薯综合评价
Comprehensive Evaluation on Dioscorea esculenta based on DTOPSIS and Principal Component Analysis
摘要
Abstract
In order to establish a comprehensive evaluation method for multiple traits of Dioscorea es-culenta germplasm resources,42 Dioscorea esculenta varieties from the 2024 regional trial in Henan Province were selected as the research objects.Through methods such as correlation analysis,DTOP-SIS analysis and principal component analysis,the 8 agronomic traits of Dioscorea esculenta were comprehensively evaluated.The results showed that the coefficient of variation of the 8 agronomic traits ranged from 3.76％to 20.39％,indicating a high degree of dispersion.Among them,the coeffi-cient of variation of yield was the largest.Correlation analysis indicated that yield was highly signifi-cantly positively correlated with the number of tubers per plant and the commercial rate.The taste was significantly negatively correlated with dry matter rate and significantly positively correlated with the commercial rate.The commercial rate was significantly positively correlated with the number of tubers per plant.In principal component analysis,the 8 traits were comprehensively combined into 3 principal component factors,mainly reflecting yield,quality and stem diameter.The cumulative con-tribution rate reached 60.124％.According to the F value score ranking,the top 5 Dioscorea esculenta varieties were Shangshu29,Shangshu28,Zhengquanshu No.1,Zhengzhishu No.6 and Shangshu30.In the DTOPSIS method of comprehensive evaluation,the ranking of the top 5 Dioscorea esculenta vari-eties based on the Ci values of 42 varieties was Luosushu No.22,Shangshu29,Shangshu27,Shang-shu30,and Zhengnongshu12.Comparatively,the DTOPSIS method had a better consistency with the yield ranking results,with the same top 5 varieties,but the order of the 1st and 2nd,3rd and 4th places was reversed.The evaluation effect was better,indicating that the DTOPSIS method was more advantageous as a comprehensive evaluation method for Dioscorea esculenta,and the selected Luosus-hu22,Shangshu29,Shangshu27,Shangshu30,and Zhengnongshu12 were suitable for demonstration and promotion in Zhengzhou City.关键词
甘薯/农艺性状/相关性分析/DTOPSIS法/主成分分析Key words
Dioscorea esculenta/agronomic traits/correlation analysis/DTOPSIS method/principal component analysis分类
农业科技引用本文复制引用
田芳,张晓申,左红娟,曹辉,徐建伟,申瑞楠,申潇潇,梁冠..基于DTOPSIS法和主成分分析法的甘薯综合评价[J].种子,2026,45(1):88-96,9.基金项目
财政部和农业农村部现代农业产业技术体系建设专项(CARS-10) （CARS-10）
河南省现代农业产业技术体系建设专项资金项目(HARS-22-04-G1) （HARS-22-04-G1）
