Cluster analysis and evaluation of agronomic characters in garlic variety resources based on principal components

doi:10.3969/j.issn.1004-1524.2016.09.08

›› 2016, Vol. 28 ›› Issue (9): 1508-1513.DOI: 10.3969/j.issn.1004-1524.2016.09.08

• Horticultural • Previous Articles Next Articles

Cluster analysis and evaluation of agronomic characters in garlic variety resources based on principal components

LIU Guo-wei, REN Yan-yun, GAO Yuan-yuan, ZHANG Long-ping^*, LIU Yan-zhi, XU Xiang-wen, GAO Fa-rui, MA Jing-yu, ZHANG Lian-qiu

Jining Institute of Agricultural Sciences, Jining 272031, China

Received:2015-11-09 Online:2016-09-15 Published:2016-11-23

Abstract

Abstract: Based on the principal of numerical classification, 15 agronomic traits of 57 garlic variety resources were investigated in the growth period and harvest period, and principal component analysis and cluster analysis were carried out in this paper. The first 4 principal accounted for 85.54%of variation among the cultivars. The first principal accounted for 63.68% which might be regarded as garlic bulb yield component factor. The top 9 cultivars were selected based on the principal component which could be garlic bulb and sprout variety improvement. At the level of D=26.00, all variety resources were classified into 4 groups and 7 cultivars. The two classifying ways, which explained the relative genetic distance and regional ecological characteristics, could both provide scientific evidence to the garlic varieties improvement.

Key words: garlic, principal component, cluster analysis, comprehensive evaluation

CLC Number:

S633.4

LIU Guo-wei, REN Yan-yun, GAO Yuan-yuan, ZHANG Long-ping, LIU Yan-zhi, XU Xiang-wen, GAO Fa-rui, MA Jing-yu, ZHANG Lian-qiu. Cluster analysis and evaluation of agronomic characters in garlic variety resources based on principal components[J]. , 2016, 28(9): 1508-1513.

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Cluster analysis and evaluation of agronomic characters in garlic variety resources based on principal components

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