欧洲白桦早期生长性状表现与优良家系选择  

Growth Traits and Selection of Fine Families of Young Betula pendula Seedlings

作　　者：兰士波 王雪松 

机构地区：[1]黑龙江省林业科学研究所经济林研究室,哈尔滨150081 [2]大兴安岭林业集团公司农业林业科学研究院

出　　处：《中国林副特产》2009年第6期1-4,共4页Forest By-product and Speciality in China

基　　金：国家重大科技基础平台"北温带种质资源基本库标准化整理与共享(2005DKA21003-02)";国家科技支撑"林木;花卉基因资源发掘与种质创新利用的研究(2006BAD13B07)";黑龙江省科技支撑"优质木结构用材原料林良种选育及定向培育技术研究(GB09B202-02)"项目资助

摘　　要：在测定分析欧洲白桦13个家系子代生长节律、适应性及早期性状表现的基础上,系统研究生长性状变异规律,并结合优树、子代测定林和子代苗期的生长表现,进一步开展优良家系选择。结果表明:各家系子代生长高峰期均集中在7月上旬至8月初,树高和地径性状均呈正态分布,且家系间和家系内差异显著,家系间抗寒适应性差异较小。综合评价各项指标,筛选出5个生长稳定、遗传分化较小的优良家系,即:6#、9#、1#、10#及13#家系。The growth traits variations of seedlings from thirteen families of Betula pendula based on growth rhythm, its adaptability, growth traits of seedlings was studied, selection of fine families was farther studied based on growth performance of plus tree, its progeny and seedling. The results show that the growth peak height of families progeny focus on early 7 month and 8 month, traits of tree height and ground diameter were normal distribution, the traits were significant differences between families and within the family, the variations of cold tolerance adaptability were slightly between families. Synthetically in the all index, the family No. 6, No. 9, No. 1, No. 10 and No. 13 were better than the other families.

关 键 词：欧洲白桦 生长表现 遗传变异 家系选择 

分 类 号：S792.248[农业科学—林木遗传育种] S828.5[农业科学—林学]