文献类型：期刊文献

中文题名：不同产地厚朴种子性状的变异分析

英文题名：Variation in Seed Characters of Magnolia officinalis from Different Locations

作者：舒枭[1,2] 杨志玲[1] 杨旭[1] 段红平[2] 于华会[1] 黄建昌[3] 李树朝[3]

第一作者：舒枭

机构：[1]中国林业科学研究院亚热带林业研究所;[2]云南农业大学资源与环境学院;[3]福建省泰宁国有林场

年份：2010

期号：3

起止页码：457-461

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：科技部林业公益性行业科研专项(200704022)

语种：中文

中文关键词：厚朴;产地;种源;种子性状;聚类分析

外文关键词：Magnolia officinalis; locations; provenance; seeds characters; cluster analysis

分类号：S722.3

摘要：The length,width,thickness,length/width ratio and 100-seed weight of Magnolia officinalis seeds from 15 natural distribution regions in China were measured and their germination rates were tested.The results showed that there were significant differences among seeds from different region in seed characters and 100-seed weight.Correlation analysis between seed characters and geographical climatic factors showed that the main variation was of geographical locations.The annual mean temperature,annual precipitation and frost-free period were the leading ecological factors restricting the seed variation.The results of test showed that there were significant differences in germination rates among different seed sources.The seeds from Ningqiang had the highest germination rate,while that from Kaixian the minimum.The seeds from Jingning,Wuyishan and Longsheng had high germination potential.According to cluster analysis on 5 trait-location mean values including seed size and quality and geographical climatic factors,the Magnolia officinalis from 15 natural distribution regions could be divided into 2 provenance regions,i.e.south-east M.officinalis provenance region and north-west provenance region.
The length,width,thickness,length/width ratio and 100-seed weight of Magnolia officinalis seeds from 15 natural distribution regions in China were measured and their germination rates were tested.The results showed that there were significant differences among seeds from different region in seed characters and 100-seed weight.Correlation analysis between seed characters and geographical climatic factors showed that the main variation was of geographical locations.The annual mean temperature,annual precipitation and frost-free period were the leading ecological factors restricting the seed variation.The results of test showed that there were significant differences in germination rates among different seed sources.The seeds from Ningqiang had the highest germination rate,while that from Kaixian the minimum.The seeds from Jingning,Wuyishan and Longsheng had high germination potential.According to cluster analysis on 5 trait-location mean values including seed size and quality and geographical climatic factors,the Magnolia officinalis from 15 natural distribution regions could be divided into 2 provenance regions,i.e.south-east M.officinalis provenance region and north-west provenance region.