摘要
为选育出速生性强、材性好且适宜在华南地区生长的桉树大径材优良无性系,以广西东门林场9a生的桉树无性系测定林为研究对象,对其保存率、干形指标、胸径、树高、单株材积和木材基本密度进行方差和相关性分析,初步筛选出DH179-1、DH291-1、DH13-4、DH32-43、DH171-2和DH211-1五个优良无性系,其平均胸径、树高、单株材积、基本密度分别为18.34cm、23.15m、0.34m^3·株^-1、0.4867g·m^-3,这为培育桉树大径材选择优良品系提供理论依据。
In order to select the species of Eucalyptus suitable for growing large-diameter timber in Guangxi, a 9-year-old trial plantation of Eucalyptus clones in Dongmen forest farm of Guangxi was studied. Using indices including tree height, DBH, volume, stem and wood basic density, the following superior clones were selected: DH179-1, DH291-1, DH13-4, DH32-43, DH171-2 and DH211-5. The average breast height diameter, tree height, single tree volume and basic density of this group of clones was: 18.34 cm, 23.15 m, 0.34 m^3·tree^-1 and 0.486 7 g·m^-3 respectively. These parameters could provide useful benchmarks and a theoretical basis for further breeding of Eucalyptus.
作者
张磊
李丽芳
王建忠
黎怀玲
熊涛
兰俊
ZHANG Lei;LI Lifang;WANG Jianzhong;LI Huailing;XIONG Tao;LAN Jun(Guangxi Dongmen State-owned Forest Farm,Fusui 532108,Guangxi,China)
出处
《桉树科技》
2019年第2期21-26,共6页
Eucalypt Science & Technology
基金
国家重点研发计划课题“桉树大径材定向培育技术”(2016YFD0600502)
中央财政林业科技推广示范项目“桉树良种DH32-43产业化示范与推广”(〔2018〕T G09号)
关键词
桉树
无性系选育
大径材
Eucalyptus
selection of clone
large-diameter timber
