A Study on the Phenotypic Genetic Diversity of Camellia Germplasm Resources in Macheng City

• 作者: Zhen SHEN
• 来源期刊: 亚洲农业研究：英文版
• 学科: 农学
• 年，卷（期）: 2017,（4）
• 页码范围: 77-80
• 页数: 4页
• 分类号: S685.14

摘要

The genetic diversity analysis was done on 11 phenotypic traits of 35 camellia germplasm materials. The results showed that there were varying degrees of variation in 11 traits concerning the flowers and leaves selected in this study,and petal number had the largest coefficient of variation,followed by ovary height,and leaf length had the smallest coefficient of variation. F test results showed that the differences in 11 phenotypic traits reached a significant level. Through the trait correlation analysis,it was found that there was a positive or negative significant correlation between the 11 phenotypic traits. Principal component analysis results showed that the cumulative contribution rate of the first three principal components was 71. 185%,the eigenvector which reflected flower pattern was largest,and flower pattern had a great impact on classification of camellia variety. Based on the genetic differences in traits between varieties,the 35 test materials were divided into three categories: Group I was characterized by large flower pattern; Group II was characterized by large leaf pattern; Group Ⅲ was characterized by many petals. Flower diameter and flower height were important standards for classification of camellia variety.