摘要
对广西融安县西山林场28年生杉木全同胞子代测定林的生长性状进行调查分析,结果表明:树高、胸径、立木材积在各杂交组合间差异均达显著水平;选出镇龙2号、73012号和柳217号等3个杉木杂交优良亲本,选出5个优良杂交组合。在5个优良杂交组合共精选出8个最优个体,这些优良单株的胸径绝对生长量高于0.9 cm/a,单株材积大于优良杂交组合均值20%以上。
The growth status of 28 - year - old full - sib progeny test forest of Cunninghamia lanceolata, which planted at Xishan Forest Farm in Rong＇ an County of Guangxi, were investigated and analyzed. The results showed that there were significant differences among all families in tree height, DBH and vol- ume. The superior parents selected by the relative effects of the general combining ability were Zhenlong 2, 73012 and Liu 217. Five excellent families were selected. Eight optimal individuals were further selected from the excellent families. The absolute growth volume of DBH was more than 0.9 cm/year and the volume was greater than that of the average of excellent families, which was more than 20%.
出处
《广西林业科学》
2016年第4期347-351,共5页
Guangxi Forestry Science
基金
广西林业科技项目(桂林科字[2014]01号)
广西科技计划项目(桂科AB16380052)
广西科学研究与技术开发计划项目(桂科能1598025-48)
关键词
杉木
全同胞子代
遗传测定
Cunninghamia lanceolata
full- sib progeny
genetic test
