热带亚热带植物学报2025，Vol.33Issue(2)：213-219,7.DOI:10.11926/jtsb.4873
卷荚相思无性系主要性状的遗传分析和综合评价
Genetic Analysis and Comprehensive Evaluation of Main Traits of Acacia cincinnata Clones
摘要
Abstract
In order to breeding superior clones of Acacia cincinnata,the genetic variation and trait correlation of main traits of 15 clones at 7 year old were analyzed by variance analysis,genetic parameter estimation,correlation analysis,path analysis and comprehensive evaluation.The results showed that there were significant differences in tree height,DBH,volume and height under branches among clones,and their repeatability was 0.71,0.64,0.42 and 0.49,respectively.Tree height and volume were significantly correlated with other traits.The DBH was significantly correlated with stem shape at 0.05 level,but with other traits at 0.01 level.The crown width was negatively correlated with height under branches and positively correlated with stem shape.The path analysis showed that DBH had the greatest contribution to single tree volume,followed by tree height and crown width,and their direct path coefficients of DBH were 0.566 5,0.389 9 and 0.172 8,respectively,and the total effect values were 0.904 7,0.825 8 and 0.877 9,respectively.The selected clones were SS2,SS3 and ZJ22 with the selection rate of 20%by using Breggin's multi-character comprehensive evaluation method,which could be considered as the comprehensive improved A.acacia clones for local promotion.关键词
卷荚相思/无性系/遗传分析/通径分析/无性系选育Key words
Acacia cincinnata/Clone/Genetic analysis/Path analysis/Clone selection引用本文复制引用
陈启华,郑莹莹,陈留犇,张波,何士宾,丁国昌,阮少宁..卷荚相思无性系主要性状的遗传分析和综合评价[J].热带亚热带植物学报,2025,33(2):213-219,7.基金项目
福建省林业科技项目(2024FKJ29) （2024FKJ29）
福建省林木种苗科技攻关项目(ZMGG-0709) （ZMGG-0709）
福建农林大学科技创新项目(KFB23060A)资助This work was supported by the Project for Forestry Science and Technology in Fujian(Grant No.2024FKJ29),the Project for Forest Seedling Science and Technology in Fujian(Grant No.ZMGG-0709),and the Project for Science and Technology Innovation of Fujian Agriculture and Forestry University(Grant No.KFB23060A). （KFB23060A）
