Evaluation and Analysis of the Main Phenotypic Traits of 86 Peanut Germplasm Resources
YU Mu
HU Yanling
YANG Haitang
Abstract：In order to study the diversity of peanut germplasm resources and explore the application potential of excellent peanut germplasm resources,the coefficient of variation,Shannon diversity index,correlation analysis,principal component analysis and cluster analysis were used to identify 22 agronomic traits and analyze genetic diversity of 86 peanut germplasm resources.The results showed that the genetic diversity of peanut germplasm resources was rich,with the diversity index of 12 quality traits ranging from 0.15 to 1.08 and the coefficient of variation of 10 quantitative traits ranging from 1.71%to 29.25%,and there was genetic correlation among the phenotypic characters.Using Euclidean distance as genetic distance,86 peanut germplasm resources could be grouped into four groups.Among them group Ⅳ had the characteristics of strong seed dormancy,strong waterlogging resistance,short growth period,high pod yield,and rust resistance,etc.,which could be used as excellent parents of high-yield peanut.The cumulative contribution rate of the first eight principal components was 69.382%.According to the information load in the principal component,growth period,100-pod weight,100-seed weight,kernel percent,main stem height,length of the 1st lateral branch could be used as the main evaluation index of peanut germplasm resources.The comprehensive score(F value)of peanut germplasm resources ranged from-1.05 to 0.89.Based on the sorting of comprehensive scores,five excellent peanut germplasm resource materials with F value>0.7 were selected,namely 201610,Puhua 82,201710,Fengshun 9616 and Jinonghua 33.
Keywords：PeanutGermplasm resourcesPhenotypic identificationGenetic diversityComprehensive evaluation
Publication Date：2024-10-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：10( 63-72 )