种子2025，Vol.44Issue(5)：51-59,9.DOI:10.16590/j.cnki.1001-4705.2025.05.051
基于主成分和聚类分析的赤水市金钗石斛矿质元素研究
Research on the Mineral Elements of Dendrobium nobile in Chishui City Based on Principal Component and Cluster Analysis
摘要
Abstract
Taking 41 samples of Dendrobium nobile collected in Chishui City,Guizhou Province as ma-terials,the contents of 11 mineral elements were determined by ICP method,and comprehensive evaluations such as correlation analysis,principal component analysis and cluster analysis were con-ducted.The results showed that the total ash content and moisture content of 41 samples of Den-drobium nobile all met the standards of the 2020 Edition of the Pharmacopoeia of the People's Republic of China.The coefficient of variation of the contents of 11 mineral elements ranged from 19.83％to 49.63％.Correlation analysis showed that Fe was extremely significantly positively correlated with B,Cu with Mn and B,Zn with Mn and Mg,Mn with P and Mg,K with Ca,P and Mg,Ca with P and Mg,and P with Mg,while B was extremely significantly negatively correlated with P.Principal com-ponent analysis extracted four principal components,with a cumulative contribution rate of 71.75％.Mn,P,Mg,B,K,and Na were screened out as the main feature vectors.Systematic cluster analysis classified 41 Dendrobium nobile germplasm resources into three major groups when the distance was 5.Studies had shown that the resources of L1(Guihua Village,Guandu Town)and N1(Guihua Vil-lage,Guandu Town)exhibitted a relatively high enrichment of mineral nutrient elements and could be used as resources to characterize the excellent characteristics of mineral elements.关键词
金钗石斛/主成分分析/聚类分析/矿质元素Key words
Dendrobium nobile/principal component analysis/cluster analysis/mineral elements分类
农业科技引用本文复制引用
唐志鸿,梁增鑫,李金玲,罗春丽,王华磊,罗夫来,赵致,杨文涛..基于主成分和聚类分析的赤水市金钗石斛矿质元素研究[J].种子,2025,44(5):51-59,9.基金项目
国家重点研发计划项目(2021YFD1601001) （2021YFD1601001）
贵州省中药材现代农业产业技术体系(GZZYCCYJSTX-03) （GZZYCCYJSTX-03）
贵州大学引进人才科研项目(贵大人基合字[2018]号) （贵大人基合字[2018]号）
贵州省粮油作物分子育种重点实验室项目(黔科合中引地[2023]008) （黔科合中引地[2023]008）
贵州省高等学校功能农业重点实验室项目(黔教技[2023]007号) （黔教技[2023]007号）
