Populus deltoides CL“SZ-2”等73个杨树无性系的引进与优选  

Introduction and Selective Preference of 73 Populus deltoides Clones

作　　者：吴发荣 戚连忠[2] 雷静品[3] 袁位高[2] 江波[2] 朱锦茹[2] 沈爱华[2] 

机构地区：[1]浙江省富阳市林业局,浙江富阳310014 [2]浙江省林业科学研究院,浙江杭州310023 [3]中国林业科学研究院,北京100091

出　　处：《浙江林业科技》2010年第1期61-64,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：速生优质工业用材林新品种选育及中试(2006C12003-1)

摘　　要：通过对Populus deltoidesCL"SZ-2"等73个杨树无性系的苗木培育和造林试验,比较分析其造林成活率、胸径、树高和材积生长量,并利用聚类分析法,初选出SZ-2杨、SZ-31杨、SZ-5杨3个优良无性系,其9年生林分生长量均高于目前浙江省表现最好的35/66杨10%以上,其中SZ-2无性系9年生林分平均胸径达37.7cm、树高达24m、单株材积达1.2946m3/hm2,分别为35/66杨的118.93%、116.50和164.69%。Experiment was conducted on seedling cultivation and afforestation of 73 introduced poplar clones in Zhejiang province. Cluster analysis on survival rate of afforestation, DBH, height and volume increment of the tested Popuhls deltoides clones demonstrated that P. deltoides SZ-2, P. deltoides SZ-31 and P. deltoides SZ-5 had better effect. Growth of 9-year clone stand had 10% higher than that of P. deltoides CL ＂35 / 66＇, who had been always the best growth in Zhejiang. 9-year P. deltoides SZ-2 stand had mean DBH of 37.7cm, height of 24cm, volume of single tree of 1.294 6 m^3/ha, that was 118.95%, 116.50% and 164.69% of P. deltoides CL ＇35 / 66＇.

关 键 词：杨树无性系 选优 聚类分析 浙江省 

分 类 号：S792.11[农业科学—林木遗传育种]