关键词: 农家红花油茶, 主成分, 聚类分析

Abstract: The study was conducted to comprehensively evaluate the investigated results of superior plant of peasant Camellia chekiangoleosa in recent five years. A total of 41 strains of peasant Camellia chekiangoleosa were chosen as materials， when they were ripe， 14 principal components of yield and fruit character were analyzed， and a two\|dimensional scatter diagram and system cluster analysis were made， respectively. The results showed that the contribution rate of the first principal component was 61.88%， which was the dry seed yield. The contribution rate of the second principal component was 15.22%， which was single dry fruit seed number and dry seed rate. The contribution rate of the third principal components was 9.63%， which was the rate of dry seed， single dry seed weight and the vertical and horizontal diameter of fruit. According to the results of principal component traits， we chose 16 strains of peasant Camellia chekiangoleosa. Among them， there were 9 strains whose first principal component were the largest and their yielding ability was the best. In the two\|dimensional sort of principal components analysis， yield and fruit character of different strains could be distinguished. In the clustering figures， when the value D was 0.87， 41 strains could be divided into 4 classes. Two\|dimensional sequence analysis and clustering analysis could be used to provide the scientific basis of improved parental utilization of peasant Camellia chekiangoleosa.

Key words: peasant Camellia chekiangoleosa, principal component, clustering analysis