耐寒性桉树早期选择 Ⅱ.巨桉种源和家系幼林生长  

Early Selection in Cold resistant Eucalyptus Ⅱ.Analysis on Growth of the Young Forests of Eucalyptus grandis Provenances and Families

作　　者：梁及芝 李志辉[2] 黄志文[3] 朱日光[3] 黄晓明[3] 

机构地区：[1]湘潭市林科所,中国湖南湘潭411000 [2]中南林学院资源与环境学院,中国湖南株洲412006 [3]资兴市林业局,中国湖南资兴423400

出　　处：《中南林学院学报》2000年第3期75-79,共5页Journal of Central South Forestry University

基　　金：国家重点科技攻关项目!"桉树纸浆用材树种良种选育及培育技术研究"( 96-0 11-0 1-0 3 )的部分内容

摘　　要：对造林 17个月后巨桉的 12个种源、80个家系的树高和地径生长进行了测定与分析 .结果表明 :巨桉家系幼林种源间、家系间树高和地径生长差异显著 ;树高和地径生长相关密切 ;5号和 3 3号家系树高生长最优 ,其次是 9,63和 75号家系 ;地径生长以 5 ,3 3和75号家系最优 ,其次是 6,9,14,2 5 ,3 6,41,45 ,63 ,64 ,70 ,77和 80号家系 .Determination and anlysis were conducted on the tree height and the ground diameter of 80 families (belonging to 12 provenance) of 17 month old young Eucalyptus grandis. The researching results showed that there was a significant difference in tree height and ground diameter among different species and different families. There was a close correlation between the increasing of tree height and the growing of ground diameter. The families, which grew best in tree height, were No.5 and No.33 families, and the next were No.9, No.63,and No.75 families; No.5,No.33,and 75 family were in the most increase in ground diameter, and the next were No.6, No.9, No.14, No.25,No.36,No.41,No.45,No.63,No.64,No.70,No.77,and No.80 families. This research provided some basic data for early selection in Eucalyptus grandis' provenance and families.

关 键 词：巨桉幼林 种源 家系 早期选择 耐寒性桉树 

分 类 号：S792.39[农业科学—林木遗传育种] S722.33[农业科学—林学]