草原与草坪2025，Vol.45Issue(1)：1-7,7.DOI:10.13817/j.cnki.cyycp.2025.01.001
云南芸香草种质资源的表型多样性分析和评价
Analysis and evaluation of phenotypic diversity of Cymbopogon distans germplasm resources in Yunnan
摘要
Abstract
[Objective]The objective of this study is to study the phenotypic diversity characteristics of Cymbo-pogon distans from different provenances in Yunnan Province and to screen high-quality provenances.[Method]Twenty-six wild germplasm resources of C.distans were collected from 7 prefectures and cities in Yunnan Province,and the germplasm resources were evaluated at the Xiaojianshan Experimental Base of Yongren State-owned orest arm in Yunnan Province.The phenotypic identification of plant height,leaf length and tiller number was carried out at the plant maturity stage,and the important characteristics in the phenotypic data of C.distans germplasm resources in Yunnan Province were retained by principal component analysis and excellent germplasm resources were screened.[Result]The results showed that under the same cultivation conditions,the variationcoefficient of 10 phenotypic ge-netic traits of 26 wild C.distans germplasm ranged between 9.26%and 27.99%,and there were great differences.A comprehensive evaluation model for the quality of C.distans germplasm resources was constructed:F=0.441F1+0.248F2+0.161F3+0.150F4.Six excellent kidney C.distans with advantages in plant expansion ability,seed qual-ity,length and comprehensive performance were selected.[Conclusion]The excellent C.distans germplasm comes from Honghe Hani and Yi Autonomous Prefecture,Chuxiong Yi Autonomous Prefecture,Dali Bai Autonomous Pre-fecture and Qujing City of Yunnan Province,indicating that the excellent genetic resources are widely distributed in Yunnan Province,and the geographical source is not the only factor causing the phenotypic diversity of the C.distans germplasm resources.This study provides basic data for the investigation and collection of germplasm resources,and supplies reference for the breeding and development of new varieties,popularization and application,and industrializa-tion development.关键词
芸香草/种质资源/主成分分析/评价Key words
Cymbopogon distans/germplasm resources/principal component analysis/evaluation分类
农业科技引用本文复制引用
庞静,常恩福,周云,李品荣,师春娟,王藜颖,普文富,丁玉雄,张梅..云南芸香草种质资源的表型多样性分析和评价[J].草原与草坪,2025,45(1):1-7,7.基金项目
2025年中央财政林草科技推广示范项目(4种禾本科优良草种繁育及应用示范) （4种禾本科优良草种繁育及应用示范）
2021年度省级低碳发展引导专项资金(云南退化草地生态系统对气候变化的响应研究) （云南退化草地生态系统对气候变化的响应研究）
云南省教育厅科技创新团队建设计划项目(生态修复草种资源开发应用) （生态修复草种资源开发应用）
云南省科技人才与平台计划项目(202205AG070006) （202205AG070006）
云南省林和草原局科技创新补助项目(2023KJCX010) （2023KJCX010）
