我国南方杂交松生长和材性的研究  

Research on the Growth,Wood Properties of Hybrid Pine in South China

作　　者：潘志刚[1] 管宁[2] 韦善华 杨建林 王观明 陈贰 

机构地区：[1]中国林业科学研究院林业研究所,北京100091 [2]中国林业科学研究院木材工业研究所,北京100091 [3]广西壮族自治区国营东门林场,广西扶绥532108 [4]国家林业局桉树研究开发中心,广东湛江524022 [5]广东省湛江市林业良种场,广东遂溪524300

出　　处：《林业科学研究》1999年第4期398-402,共5页Forest Research

基　　金：林业部 1995~ 2 0 0 0年世界银行贷款项目"国外松及材性研究"的部分内容

摘　　要：对广东湛江 15年生和广西东门林场 7年生的杂交松试验林的生长和材性进行研究 ,结果表明 :广东湛江 15年生最优良杂交松组合 (正种加勒比松河 6×湿地松混合花粉 )的材积较对照正种加勒比松材积大 1.66倍 ;广西东门林场 7年生杂交松 (湿地松×洪都拉斯加勒比松 ) 3个家系的平均材积较湿地松 60个家系的大 2倍 ,最优良杂交松 (家系 62号 )的材积较湿地松大 2 .88倍。以上优良杂交松可分别在我国热带及南亚热带推广。杂交松的年轮平均密度和晚材率大致处于正种加勒比松和湿地松之间 ,年轮平均密度的差异主要是由于晚材率差异所致。 3种松木的变异模式都是从髓心起逐渐增高 ,到第 8～ 9年变化趋缓 ;杂交松在近树皮处的纤维长度介于两个亲本之间 。The volume of 15 year old superior hybrid pine at Zhanjiang ( Pinus caribaea var. caribaea ×Pinus elliottii var. elliottii mixed pollen,PCC×PEE) is 2.3 times greater than its parents & 1.66 times greater than its female parent (PCC).This superior hybrid pine cross combination could be used in our tropical coast region.The average 3 families of the volume of 7 year old hybrid pine (PEE× Pinus caribaea var. hondurensis ,PEE×PCC) from Queensland,Australia is 2.0 times greater than the average volume of 60 families of PEE.This hybrid pine could be used in our southern subtropical regions.Wood densitometry and fibre length measurement for PCC,PEE & hybrid pine showed that:the average ring density and latewood % of hybrid pine lay between those of PCC & PEE;the radial variation patterns of the 3 woods were about the same,an increase trend started from the pith & level off at the 8th to 9th ring;near the pith,fibre length of the hybrid pine was greater than that of the PCC & PEE;while near the bark,between them.Our climate & site conditions are more complex than Queensland,so that we must select different superior cross combination of hybrid pine for the different climatic zone.Using vegetative propagation,hybrid pine could be used in the operational forestry.

关 键 词：加勒比松 湿地松 杂交松 生长 材性 

分 类 号：S722.34[农业科学—林木遗传育种] S791.240.4[农业科学—林学]