广西玉林市6种黑木相思无性系生长性状评价  

Evaluation of Growth Traits of Six Acacia melanoxylon Clonesin Yulin, Guangxi

作　　者：何江 陈丽芬 曾炳山[2] 陈朝黎 覃贵毕 凌云芳 谭一波[3] He Jiang;Chen Lifen;Zeng Bingshan;Chen Zhaoli;Qin Guibi;Ling Yunfang;Tan Yibo(Guangxi State-owned Liuwan Forest Farm,Yulin,Guangxi 537000,China;Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou,Guangdong 510520,China;Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China)

机构地区：[1]广西壮族自治区国有六万林场,广西玉林537000 [2]中国林业科学研究院热带林业研究所,广东广州510520 [3]广西壮族自治区林业科学研究院,广西南宁530002

出　　处：《广西林业科学》2023年第6期719-725,共7页Guangxi Forestry Science

基　　金：中国林业科学研究院基金项目(CAFYBB2017ZD002)。

摘　　要：为给黑木相思(Acacia melanoxylon)无性系的选育和推广提供理论依据,以6种1~4年生黑木相思无性系(SR3、SR13、SR14、SR17、SR25和SR53)为研究对象,比较不同黑木相思无性系的存活率和保存率,测定树高、胸径与单株材积,分析重复力和遗传增益,采用隶属函数法分析不同黑木相思无性系生长性状差异。结果表明,不同黑木相思无性系的存活率和保存率均差异不显著。第4年时,黑木相思无性系树高、胸径和单株材积均差异显著;重复力均较高;SR3无性系的平均树高、平均胸径和单株材积均较大,变异系数较大。隶属函数分析表明,SR3无性系综合得分最高,其次为SR53、SR14和SR17无性系,SR25和SR13无性系得分较低。SR3无性系可在广西玉林市推广。In order to provide theoretical basis for selection and promotion of Acacia melanoxylon clones,taking six one-year-old to four-year-old A.melanoxylon clones(SR3,SR13,SR14,SR17,SR25 and SR53)as re-search objects,survival rates and preservation rates of different A.melanoxylon clones were compared.Tree heights,DBHs and individual volumes were measured.Repeatability forces and genetic gains were analyzed.Differences in growth traits of different A.melanoxylon clones were analyzed by membership function method.Results showed that survival rates and preservation rates of different A.melanoxylon clones had no significant differences.At the forth year,tree heights,DBHs and individual volumes of A.melanoxylon clones had signifi-cant differences,repeatability forces were relatively high,and average tree height,average DBH and individual volume of SR3 clone were larger,coefficients of variation of which were larger.Membership function analysis showed that SR3 clone had the highest overall score,followed by SR53,SR14 and SR17 clones,and SR25 and SR13 clones had lower scores.SR3 clone could be promoted in Yulin,Guangxi.

关 键 词：隶属函数 无性系 遗传增益 生长差异 黑木相思 

分 类 号：S722.3[农业科学—林木遗传育种]