文献类型：期刊文献

中文题名：野生多花黄精种群表型变异研究

英文题名：Phenotypic variations in natural populations of Polygonatum cyrtonema Hua

作者：周新华[1] 曾平生[1] 武晓玉[1] 姚甲宝[1] 熊光康[1] 李家彧[1]

第一作者：周新华

机构：[1]中国林业科学研究院亚热带林业实验中心

年份：2019

卷号：39

期号：6

起止页码：99-106

中文期刊名：中南林业科技大学学报

外文期刊名：Journal of Central South University of Forestry & Technology

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家重点研发计划(2017YFD0600304);浙江省省院合作林业科技项目(2017SY20);中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017MB024)

语种：中文

中文关键词：野生多花黄精;表型变异;地理生态因子;种群

外文关键词：Polygonatum cyrtonema;phenotypic variation;geographical ecological factors;populations

分类号：S718.46

摘要：为了解不同种群野生多花黄精的表型变异规律,运用方差分析、变异系数分析、多重比较分析、相关分析、聚类分析等多种数理统计分析方法,对其全分布区选取的9个种群和12个表型指标进行了研究。结果表明:野生多花黄精的12个表型性状除果实横纵比外,在种群间和种群内均存在显著或极显著的差异;种群内的变异(36.24%)大于种群间的变异(15.37%),表型性状的平均分化系数为28.84%,种群内变异是野生多花黄精变异的主要来源;各表型性状的平均变异系数为12.16%,变异幅度范围为4.76%~23.63%,叶片数、全株叶面积、地径、株高、种子千粒重的变异系数分别为18.00%、23.63%、16.88%、16.14%、14.75%,表明种子的稳定性高于叶和茎。经度多数表型性状间呈显著或极显著负相关关系,随着经度的增加,叶片数、地径、株高、果实纵径和种子千粒重均呈现减小趋势;采用欧氏距离对9个野生种群进行聚类分析,可以将种群划分为3类,但表型性状的聚类并不随地理距离上的相聚而聚为一类。
In order to understand the phenotypic variation of the wild Polygonatum in different populations, 9 population and 12 phenotypic indexes were studied by means of variance analysis, variation coefficient analysis, multiple comparative analysis, correlation analysis and cluster analysis. The results showed that 12 phenotypic traits of wild Polygonatum were significant or extremely significant difference between population and population except for fruit and vertical ratio. The variation in population (36.24%) was greater than that among populations (15.37%), the average differentiation coefficient of phenotypic traits was 28.84%, and the variation in population was the variation of wild Polygonatum. The average variation coefficient of the phenotypic traits was 12.16%, the range of variation range was 4.76%-23.63%, and the variation coefficients of leaf number, whole plant leaf area, ground diameter, plant height and seed 1000 grain weight were 18%, 23.63%, 16.88%, 16.14% and 14.75% respectively, indicating that the stability of the seeds was higher than that of the leaves and stems. Most of the phenotypic traits of longitude showed significant or extremely significant negative correlation. With the increase of longitude, the number of leaves, ground diameter, plant height, fruit vertical diameter and seed 1 000 grain weight decreased. The cluster analysis of nine wild populations by Euclidean distance could divide the population into three categories, but the clustering of phenotypic traits does not converge with geographical distance.