Phenotypic Diversity Analysis in Elaeagnus angustifolia Populations in Gansu Province, China

As a highly resistant urban ornamental plant, Elaeagnus angustifolia L. is often used in dry land, saline-alkali land shelter forest, and landscape horticulture. It the main windbreak sand-fixing tree species Gansu Province, China. The special geographical climatic environment makes distribution growth of E. Province show different degrees difference. In order to evaluate phenotypic diversity populations its variation patterns under conditions, 35 traits (trunk, branch, leaf, flower related traits) 90 plants from 10 were measured analyzed. results showed following: (1) has rich variation. greater among populations. with largest smallest coefficients “under-branch height” “flower diameter”, respectively. Qilihe population was largest, Ganzhou smallest. flowers leaves relatively higher. (2) Correlation analysis that most closely related. Leaf gradient law dominated by altitude precipitation. Flower affected synergistic effects various factors. (3) principal component (PCA) primary affecting leaf size branch length trunk, flower. (4) Cluster clustered into four clusters not completely according distance may be randomly genotypic or environmental These will lay foundation for further genetic mechanism also provide reference collection, preservation, variety improvement germplasm resources.