甘肃河西地区红皮洋葱种质资源农艺性状相关性及聚类分析  

Correlation and Cluster Analysis on Agronomic Traits of Red Onion Germplasm Resources in Hexi Area of Gansu Province

作　　者：蒯佳琳 张玉鑫[1] 陶兴林[1] 马彦霞[1] 于庆文[1] KUAI Jialin;ZHANG Yuxin;TAO Xinglin;MA Yanxia;YU Qingwen(Institute of Vegetables,Gansu Academy of Agricultural Sciences,Lanzhou 730070,China)

机构地区：[1]甘肃省农业科学院蔬菜研究所,兰州730070

出　　处：《种子》2023年第5期68-72,80,共6页Seed

基　　金：财政部和农业农村部“国家现代农业产业技术体系资助”(CARS-24-G-28);农业农村部西北地区蔬菜科学观测试验站项目(2015-A 2621-620321-G 1203-066)。

摘　　要：为了丰富甘肃省河西地区红皮洋葱种质资源,对14份红皮洋葱种质资源11个主要农艺性状进行了相关性、主成分和聚类分析。结果表明,11个农艺性状变异系数在3.20%~65.88%之间,其中7个农艺性状的变异系数大于10%,红皮洋葱种质资源类型丰富多样;相关性分析可以得出,洋葱鳞茎单重与鳞茎纵径、横径呈极显著正相关;主成分分析结果显示,洋葱11个主要农艺性状可归纳为株型、产量和鳞茎表观性状3个主成分,对总变异的累积贡献率达85.19%;聚类分析在遗传距离为5时将14份红皮洋葱种质划分为3类,其中第Ⅱ类群有6份种质资源,可作为优种质进一步筛选利用。In order to enrich the germplasm resources of red onion in Hexi area of Gansu Province,the correlation,principal component and cluster analysis of 11 main agronomic traits of 14 red onion germplasm resources were carried out.The results showed that the variation coefficients of 11 agronomic traits ranged from 3.20%to 65.88%,of which the variation coefficients of 7 agronomic traits were greater than 10%and the types of red onion germplasm resources were rich and diverse.Correlation analysis showed that the single weight of onion bulbs was positively correlated with the longitudinal and transverse diameters of the bulbs.The results of principal component analysis showed that the 11 main agronomic traits of onion could be classified into 3 principal components:plant type,yield and bulb appearance,and the cumulative contribution rate to the total variation reached 85.19%;Cluster analysis showed that the 14 red onion germplasms were divided into 3 groups when genetic distance was 5,among which 6 germplasms of the second group could be used for further screening and utilization.

关 键 词：红皮洋葱 农艺性状 相关分析 主成分分析 聚类分析 

分 类 号：S633.2[农业科学—蔬菜学]