摘要
对澳大利亚黑荆天然林１９个种源区的１６８个自由授粉家系及我国温州人工林的１个自由授粉家系４年生子代测定林的生长表现分析结果表明，种源及家系的高、径生长差异均达到极显著水平；子代的遗传变异丰富，树高、胸径的家系遗传力分别为０．４３、０．３２，单株遗传力为０．３２、０．２２；长泰、南康两试点的树高、胸径在选择率为２０％时的遗传增益为２４％～３３％。对两试点共同家系的合并分析发现，家系的生长性状存在较大的环境互作效应。最后，采用育种值评定法评选出优良家系３５个，并根据试验结果，提出今后黑荆树进一步改良的意见和建议。
Total l68 open-
pollinated black wattle(Acacia mearnsii Willd)seedlots collected from l9 provenances in
Australia and l progeny from Wenzhou are tested in the provenance/progeny trial. The paper
compares provenance and progeny performance in growth in the trial at four years age. The
results show high significant differences among the provenances and progenies.The progenies
show high genetic variance in growth.The heritabilities of height and DBH are 0.43、0.32 for
family mean and 0.32、0.22 for individual respectively. The genetic gain of height and DBH
are24%～33%for families,Analyses of growth of the families present at bothsites show
significant genotype-environment interaction.35 families areselected by using a breeding value
form.
出处
《林业科学研究》
CSCD
北大核心
1994年第1期7-12,共6页
Forest Research
基金
中澳国际合作项目"8849黑荆树栽培与纸浆材研究"及林业部合同项目
关键词
黑荆树
自由授粉子代
种源
家系
Acacia mearnsii,open-pollinated progeny,provenance/progenytrial Ren
Huadong, Assistant Engineer,Gao Chuanbi,Zheng Fanfji,Li Jiyuan(he Reseatch Institute
ofSubtropical Forestry CAF Fuyang,Zhejiang 311400)
Liu Shijun(Forestry Research Institute
ofGanz
