摘要
以川西云杉32个香格里拉家系3年生苗为材料,营建试验林,7年生时,观测各家系的保存率、当年抽梢长、树高、南北平均冠幅、地径和顶轮分枝数,并进行统计分析。结果表明:川西云杉32个香格里拉家系间树高和冠幅的差异达极显著,保存率、当年抽梢长、地径、顶轮分枝数的差异均不显著。综合选择出的5个优良家系平均树高比其它27个提高12.4%,当年抽稍长提高11.7%,地径提高5.6%,冠幅提高11.2%,保存率提高4.4%。
Taking the experiment material of three-year Shangri-La family of Picea balfouriana of 32 families. construction test forest.Observation of survival rate of system,conducted to study the tree height,the length of new shoot,the ground diameter,the north-south crown width and the preserving rate of total length of top wheel lateral branch.The results showed that the tree height and the crown width were very significantly,and the difference of survival rate of system, the length of new shoot, the ground diameter, the preserving rate of total length of top wheel lateral branch weren＇t significant.Comprehensive selection of 5fine family of 7 year-old Picea balfouriana are increased 12.4% ratio than the average tree height increased of27 others,and the length of new shoot, ground diameter,crown width and survival rate increased 11.7%,5.6%,11.2%,4.4%,inspectively.
出处
《林业科技》
2016年第1期5-7,共3页
Forestry Science & Technology
基金
"十二五"国家科技支撑计划课题"北亚热带云杉育种技术研究"(编号:2012BAD01B02-1)
关键词
川西云杉
家系
选择
Picea balfouriana
family
selection
