|Table of Contents|

Correlation，Principal Component and Cluster Analysis of Morphological Characteristics in Pepper Germplasm Resources(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2018年04
Page:
9-17
Research Field:
Publishing date:

Info

Title:
Correlation，Principal Component and Cluster Analysis of Morphological Characteristics in Pepper Germplasm Resources
Author(s):
HE Wei; ZHANG Hui; DONG Yanlong; WANG Ying
Institute of Horticulture,Heilongjiang Academy of Agricultural Sciences,Harbin,Heilongjiang 150069
Keywords:
pepper; correlation; principal component analysis; cluster analysis
PACS:
-
DOI:
10.11937/bfyy.20172442
Abstract:
Correlation,principal components and cluster analysis were studied to analyze 28 morphological characteristics of 205 pepper germplasm materials.The results showed that there was a high correlation between the morphological characteristics of pepper and the number of fruit per plant,leaf shape,plant type,fruit shape,stem fluff,pedicel direction,mature period,and stylet color were the most important traits.The variance cumulative contribution rate of the six main components reached 50.653%,suggesting that the 28 traits represented more direction of traits improvement.The main components were summarized as morphological factors,yield factors,maturity factors,color factors.Clustering analysis according to fruit shape,the number of fruit per plant,mature period and fruit color was conducted,205 copies of germplasm were divided into 7 categories,which effectively distinguished different breeds.It was suggested that the main characteristics should be selected according to the requirements of breeding target,and the association with other traits should be studied for improving morphological characteristics.

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Last Update: 2018-02-23