Abstract: This paper analyzed the correlation between different growth traits by researching the plant height,ground diameter,and number of shoot buds of ornamental xanthoceras sorbifolia’s seedlings in Shunyi and Changping in Beijing,and Chicheng in Hebei province.The methods of container nursery under non-covered greenhouse and seedlings on the ground were used in the research in order to cultivate the big seedlings of ornamental xanthoceras sorbifolia in Beijing Badaling Forest Farm.The result shows that there is no significant difference between plant height,ground-diameter,and number of shoot buds in different provenances of “1a” old seeding of ornamental xanthoceras sorbifolia.The seedlings in Chicheng,Hebei grew better,but differentiated more in their growth.In addition,early selection is necessary for choosing higher growth of arbor ornamental tree.There was a linear regression between plant height and ground diameter.The number of shoot buds had logarithm regression to plant height and ground diameter.The significance of these regressions could be used to evaluate the provenance and ascertain effects of cultivation and plantation technology on the growth.

Key words: Xanthoceras sorbifolium, ornamental plant, provenance, seedling-raising method, growth traits