Analysis on Seed and Fruit Phenotypic Diversity of Juniperus tibetica Kom.from Different Provenances in Xizang
In order to study the diversity of seed and fruit phenotypic traits and its correlation law with geographical and climatic factors in different provenances of Juniperus tibetica Kom.in Xizang.In this study,the phenotypic traits of 10 species of Juniperus tibetica Kom.in 13 natural distribution ar-eas in Xizang Autonomous Region were measured.The methods of variance analysis,Pearson correla-tion analysis and cluster analysis were used to systematically analyze and comprehensively evaluate the 10 seed and fruit phenotypic traits of Juniperus tibetica Kom..The results showed that the stability of seed weight per hundred grains of Juniperus tibetica Kom.among different provenances was signifi-cantly lower than other phenotypic indexes.Some of the phenotypic indexes were significantly correla-ted with geographical and climatic factors.Using 10 phenotypic traits of fruits and seeds as variables,the 13 provenances of Juniperus tibetica Kom.were divided into three groups by cluster analysis.The results indicated that there were abundant variation in the phenotypic traits of J uniperus tibetica Kom.species among different provenances under the influence of geo-climatic factors.
万方数据
维普
