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.
Journal of Central South Forestry University
geographical ecological factors