20个花生新品系综合鉴定评价及筛选研究OA

To screen specialized peanut varieties suitable for processing Longyan salty and crispy peanuts,and to address issues related to raw material and processing adaptability,this study conducted field experiments and multi-dimensional statistical analyses on 17 agronomic and quality traits of 20 new peanut lines from southern China.Comprehensive evaluation was performed using correlation analysis,principal component analysis(PCA),and systematic cluster analysis.The results showed significant variation in agronomic traits,with noticeable variability in the number of effective branches and high stability in crude fat mass fraction.Hundred-pod weight was positively correlated with quality and branching traits,while protein mass fraction was negatively correlated with crude fat mass fraction,pod number,and pod weight.PCA extracted the first five principal components,which cumulatively explained 79.22％of the total variance.Cluster analysis categorized the lines into four groups,with Group Ⅱ identified as the core breeding population for high yield and superior processing quality.Longhua 194,Quanhua 21,and Longhua 166 exhibited outstanding overall performance,making them excellent germplasms for processing salty and crispy peanuts.The comprehensive evaluation system established in this study provides a valuable reference for developing and screening specialized peanut varieties for salty and crispy peanut processing.