不同产地红豆树家系生长与叶形性状变异分析与优良家系选择  

Analysis of Growth and Leaf Morphological Variation of Ormosia hosiei from Different Origins and Selection of Excellent Strains

作　　者：陈焕伟 季景勇 叶琳燕 沈斌 蔡超 骆珍莎 曹森 CHEN Huanwei;JI Jingyong;YE Linyan;SHEN Bin;CAI Chao;LUO Zhensha;CAO Sen(Forestry Science Research Institute of Longquan City,Longquan,Zhejiang 323799;Forestry Bureau of Longquan City,Longquan,Zhejiang 323799;Longquan Conservation Center of Qianjiangyuan-Baishanzu National Park,Longquan,Zhejiang 323714;Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Key Laboratory of Provincial Tree Breeding,Hangzhou,Zhejiang 311400)

机构地区：[1]龙泉市林业科学研究院,浙江龙泉323799 [2]龙泉市林业局,浙江龙泉323799 [3]钱江源-百山祖国家公园龙泉保护中心,浙江龙泉323714 [4]中国林业科学研究院亚热带林业研究所,全省林木育种重点实验室,浙江杭州311400

出　　处：《浙江林业科技》2025年第1期73-81,共9页Journal of Zhejiang Forestry Science and Technology

基　　金：中央财政林业科技推广示范资金项目(〔2023〕TS16号)。

摘　　要：揭示不同产地红豆树Ormosia hosiei家系生长与叶形的表型分化程度与变异规律,为筛选优良家系提供理论指导。本研究选择来自江西、浙江、福建和四川4省共38个红豆树家系,通过表型测定开展生长和叶形性状的差异分析和多样性研究。结果表明,不同产地红豆树生长性状与叶形性状存在极显著差异(P<0.01),所有表型的变异系数均超过10%,说明各表型性状在产地间均有丰富的变异。其中四川产地的红豆树表型特征明显,生长较差,其树高(3.01 m)、东西冠幅(1.31 m)和南北冠幅(1.35 m)均显著低于其他三个省份产地的红豆树(P<0.01),但叶片发育较好,叶面积(23.56 cm^(2))、叶周长(16.21 cm)、叶长(11.57 cm)和叶宽(5.50 cm)等表型均显著高于其他三个产地的红豆树(P<0.01),说明四川产地的红豆树家系整体长势一般,但叶片较大;表型间相关性分析结果显示生长性状和叶形性状内两两之间均存在极显著正相关(P<0.01),这为优异种质定向筛选提供依据。聚类分析结果将红豆树群体分为5类,聚类结果与地理位置基本一致。最终基于树高、胸径和冠幅表型数据筛选得到优良红豆树家系8个。By revealing the extent and pattern of phenotypic differentiation in growth and leaf morphology among different provenances of O.hosiei,this study provides theoretical guidance for selecting superior genetic resources.Thirty-eight O.hosiei provenances from four provinces(Jiangxi,Zhejiang,Fujian,and Sichuan)were selected for phenotypic characterization of growth and leaf traits through differential analysis and diversity study.Results showed significant variations in growth and leaf traits among different provenances,with all phenotypic coefficients of variation exceeding 10%,indicating rich variability across provenances for all traits.Specifically,O.hosiei from Sichuan exhibited distinctive phenotypic characteristics,with inferior growth traits including tree height(3.01 m),east-west canopy width(1.31 m),and north-south canopy width(1.35 m)significantly lower than those from the other three provinces(p<0.01),but superior leaf development traits including leaf area(23.56 cm^(2)),leaf perimeter(16.21 cm),leaf length(11.57 cm),and leaf width(5.50 cm)significantly higher than those from the other three provenances(p<0.01),indicating moderate overall growth but larger leaves for Sichuan provenances.Correlation analysis revealed highly significant positive correlations between growth and leaf traits,providing a basis for targeted selection of superior germplasm.Cluster analysis categorized O.hosiei populations into five groups,which largely corresponded to their geographical origins.Finally,eight superior O.hosiei provenances were identified based on growth trait data including tree height,diameter at breast height,and canopy width,providing theoretical and material foundations for the breeding of elite O.hosiei varieties.

关 键 词：红豆树 生长性状 叶形性状 方差分量 聚类分析 

分 类 号：S722.5[农业科学—林木遗传育种]