|Table of Contents|

Principal Component and Cluster Analysis for Agronomic Traits of Seventy-five Cowpea Varieties

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年07
Page:
10-19
Research Field:
Publishing date:

Info

Title:
Principal Component and Cluster Analysis for Agronomic Traits of Seventy-five Cowpea Varieties
Author(s):
HUANG Weikang; LIU Yong; FU Qiwei; ZHONG Xiangtao; LUO Feng; WU Qianxing
(Sanya Science and Technology Academy for Crop Winter Multiplication,Sanya,Hainan 572000)
Keywords:
Vigna sesquipedalis;  varieties;  agronomic characters;  principal component analysis;  cluster analysis
PACS:
-
DOI:
10.11937/bfyy.2019351
Abstract:
In order to have a better utilization of the long-podded cowpea germplasm resources,14 agronomic traits of 75 varieties of long-podded cowpea were tested with the methods of main components and cluster analysis.The results showed that among the 75 varieties of long-podded cowpea,the variation of 3 agronomic traits,the coefficient of pod length,the moisture content and thickness of cowpea leaves was the smallest,and these traits were the most stable.Breeding and screening of cowpea could be improved by eleven agronomic traits including water content of pods,tender pod yield of 667 m2,width of tender pod,node number to initital flowering,tender pod weight,chlorophyll content of leaves,ratio of length to width of leaflets,stem diameter,length of third node,width of tender pod and 100-seed weight with high coefficient of variation.The variation coefficients of 14 agronomic traits were moisture content of pod>tender pod yield of 667 m2>thickness of tender pod>node number to initial flowering>tender pod weigh>chlorophyll content of leaves>ratio of length ot width of leaflets>stem diameter>length of third node>width of tender pod>100-seed weight>10%>moisture content of leaves>length of tender pod>thickness of cowpea leaves.Eight principal components could better replace by fourteen agronomic traits with cumulative contribution rate of 82.41%.These cowpea varieties could be divided into five categories including Ⅰ,Ⅱ,Ⅲ,Ⅳ,Ⅴwhen the european distance was 11.The yield of type II was high and suitable for Hainan,while type of V was lowest yield which not suitable for Hainan.

References:

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Last Update: 2020-06-01