作物杂志Issue(5)：120-127,8.DOI:10.16035/j.issn.1001-7283.2025.05.016
不同类型油菜资源农艺性状鉴定及聚类分析
Identification and Cluster Analysis of Agronomic Traits in Different Types of Rapeseed Resources
摘要
Abstract
To understand the characteristics of different rapeseed resources and identify superior germplasms for breeding,this study evaluated 55 rapeseed germplasms.Phenotypic evaluation,correlation analysis,and cluster analysis were conducted on 13 agronomic traits,including growth period,plant height,number of branches,1000-seed weight,and yield per plant,etc.The results showed that the coefficients of variation of the growth period among different types of rapeseed were relatively low,all below 20％,while those of the number of siliques on the main inflorescence,siliques per plant,and yield per plant all exceeded 20％.Correlation analysis revealed that the relationships among traits were generally consistent across the three rapeseed types,with the number of siliques on the main inflorescence,silique density,and 1000-seed weight being closely associated with yield formation.At a Euclidean distance of ten,the 55 rapeseed resources were clustered into four groups.Subgroup D of Group Ⅰ contained large-seeded Brassica napus resources.Group Ⅱ exhibited superior performance across various agronomic traits,making it an excellent source for breeding new high-yielding varieties(lines).Group Ⅲ was characterized by high silique density and a large number of siliques,making it a good choice for breeding multi-silique parents.Group IV was rapeseed resources used for green manure.The large-grain,high-yield,multi-silique,and high-biomass accessions identified in this study provide a theoretical basis and valuable materials for future rapeseed trait improvement.关键词
油菜/种质资源/农艺性状/聚类分析Key words
Rapeseed/Germplasm resources/Agronomic traits/Cluster analysis引用本文复制引用
赵彩霞,白玛央珍,杨广环,唐琳..不同类型油菜资源农艺性状鉴定及聚类分析[J].作物杂志,2025,(5):120-127,8.基金项目
西藏自治区农牧科学院农业研究所统筹项目(NYSTC202407) （NYSTC202407）
中央引导地方项目(XZ202201YD0035C) （XZ202201YD0035C）
