2021年12月7日 星期二
油松针叶萜类组分相对含量的地理变异
The geographical variation of relative contents of foliar volatile terpenes in Pinus tabulaeformis Carr.
1996年 第5卷 第1期 页码[30-34]    下载全文[0.6MB]  
摘要

在油松(Pinus tabulaefomis Carr.)主要天然分布区晋、冀、陕、甘4省,选择12个种源36个林分(每个林分8株成年油松样木),利用气相色谱和气质联用技术,测定了油松针叶萜类相对含量,并分析了所含萜类总数在不同种源间、种源内不同林分间的差异。结果表明:(1)油松针叶萜类相对含量以随机变异为主;(2)有2种化合物(γ-古芙烯和一未知物)及化合物总数具有较强的生态型变异特点;(3)多数化合物的相对含量存在显著的种源间差异,部分存在种源内林分间差异,多数化合物的种源间差异大于种源内林分间差异。

 

Abstract

The geographical variations of foliar volatile terpenes of Pinus tabulaeformis Carr. were determined. The needle samples were collected from 36 sampling stands at 12 sampling sites of native forest in 4 provinces (Shanxi, Hebei, Shaanxi and Gansu), and 8 sampling trees in each stand were collected. The results indicated that: ( 1 ) the geographical variations of relative contents of most foliar terpenes are irregular; (2) the relative content of compounds number 04 (unidentified) and 21 ( 7-gurjunene) show ecological variations in a certain degree; ( 3 ) there are significant variations among provenances and among stands within provenance, and the variations among provenances are greater than those among stands within provenance.

关键词油松; 针叶; 萜类; 相对含量; 地理变异;
Key wordsPinus tabulaeformis Carr.; needle; relative content; geographical variation
作者刘和平,张懿藻
所在单位陕西省林业科学研究所,杨陵712100
西北林学院,杨陵712100
点击量7234
下载次数239
基金项目“七•五”国家攻关课题;