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Cluster Analysis and Evaluation of Garlic(Allium sativum L.) Germplasm Based on Principal Components

Zhihui Cheng

Open publisher page 2 citations

Abstract

The agronomy traits of 40 garlic cultivars were investigated based on the principal of numerical classification,and the PCA(define)of 16 agronomic traits and 5 quality traits were analyzed.The scatter plot were drawn based on the first 3 principal(PC)and the clustering analysis was carried out based on the genetic coefficients.The first 7 PC accounted for 85%of variation among the cultivars.The top 10 cultivars were selected based on the principal component.The 40 cultivars can be classified into 4 groups when SM coefficient was 0.14 on the UPGMA dendrogram.The clustering based on the 0.07~0.64 SM coefficients,which explained the genetic relationship of 40 cultivars.

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What this paper is about

The agronomy traits of 40 garlic cultivars were investigated based on the principal of numerical classification,and the PCA(define)of 16 agronomic traits and 5 quality traits were analyzed.The scatter plot were drawn based on the first 3 principal(PC)and the clustering analysis was carried out based on the genetic coefficients.The first 7 PC accounted for 85%of variation among the cultivars.The top 10 cultivars were selected based on the principal component.The 40 cultivars can be classified into 4 groups when SM coefficient was 0.14 on the UPGMA dendrogram.The clustering based on the 0.07~0.64 SM coefficients,which explained the genetic relationship of 40 cultivars.

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Available abstract

The agronomy traits of 40 garlic cultivars were investigated based on the principal of numerical classification,and the PCA(define)of 16 agronomic traits and 5 quality traits were analyzed.The scatter plot were drawn based on the first 3 principal(PC)and the clustering analysis was carried out based on the genetic coefficients.The first 7 PC accounted for 85%of variation among the cultivars.The top 10 cultivars were selected based on the principal component.The 40 cultivars can be classified into 4 groups when SM coefficient was 0.14 on the UPGMA dendrogram.The clustering based on the 0.07~0.64 SM coefficients,which explained the genetic relationship of 40 cultivars.

Key concepts: Principal component analysis, UPGMA, Cultivar, Germplasm, Allium sativum, Dendrogram, Biology, Horticulture

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