摘要
以尾巨桉(Eucalyptus urophylla×E.grangdis)无性系为研究对象,对其生长及材性相关性状进行研究,结果表明:在参试的25个无性系中,单株材积大于总体平均值的无性系有11个,其中生长表现最好的是无性系DH33-27,15年生时的胸径、树高、单株材积、枝下高分别为25.0 cm、32.8 m、0.7722 m3、20.1 m;形质性状最好的是无性系DH32-28;外部木材密度指标值最小的无性系是DH15-3,纤维纹理倾角最小的无性系是DH33-20。单株材积与胸径、树高呈高度正相关。
The trial testes growth and wood properties of E. urophylla × E. grandis clones. Results show that 11 out of 25 clones are bigger than the mean value in single volume. Clone DH33-27 displays the best growth of all that at the age of 15 the DBH, height, single volume and height under branch reach 25.0 cm, 32.8 m, 0. 7722 m^3, 20. lm respectively. Clone DH32-28 displays the best form quality. As for wood quality, index value of clone DH15-3 is the smallest in exterior wood density. Clone DH33-20 has the smallest fiber grain angle. Single volume shows a strong positive correlation with DBH and tree height.
出处
《广西林业科学》
2009年第2期83-86,共4页
Guangxi Forestry Science
基金
"十五"广西林业科学研究项目"桉树中大径材良种与高产栽培模式研究"
中澳越合作项目"提高中国
越南和澳大利亚桉树人工林锯材价值"
关键词
尾巨桉
生长性状
材性
E. urophylla × E. grandis
growth
wood properties
