Method for culturing cold-resistant evergreen tree

Abstract

The invention relates to a method for culturing a cold-resistant evergreen tree. Euonymus bungeanus, buxus sinica, euonymus and Russian buxus sinica serving as basic varieties are subjected to multi-generation and multi-element grafting to form the tree. The method comprises the following steps of: generating a generation A by taking the euonymus bungeanus as stock and the buxus sinica as scion; generating a generation B by taking the euonymus bungeanus as stock and the euonymus as scion; generating a generation C by taking the euonymus bungeanus as stock and the Russian buxus sinica as scion; generating a generation D by taking the buxus sinica as stock and the Russian buxus sinica as scion; generating a generation X by taking the generation A as stock and the generation B as scion; generating a generation Y by taking the generation C as stock and the generation D as scion; and generating a generation W by taking the generation X as stock and the generation Y as scion to obtain the variety of the cold-resistant evergreen tree which is named a mid-winter green tree. The inclined branches of the tree cultured by the method are short and the trunk is straightly up to the blue sky; when the trunk grows to about 3 meters, lateral branches are only 2 centimeters; when the air temperature reaches 23.5 DEG C below zero, the tree is still green; the widest leaves are 4 centimeters and the longest leaves are 6 centimeters; the leaves do not fall off in winter, and the leaves fall off until April to May in the north; and the tree is a broad-leaf green tree which is rare in northern winter and has good effect of beautifying the winter environment in the north.

Description

Technical field: [0001] The invention belongs to a method for cultivating plants, in particular to a method for cultivating cold-resistant evergreen trees. Background technique: [0002] In the north of my country, especially in the northwest region, except for coniferous tree species such as pine and cypress which are green all the year round, most of the tree species have withered and fallen leaves in autumn and winter, and the scenery is bleak. Someone also tried to introduce foreign cold-resistant and drought-resistant tree species, but most of them did not succeed. Invention content: [0003] The object of the present invention is to provide a kind of cultivation method in cold-resistant evergreen tree, and this tree species can survive all the year round in Northwest my country. [0004] The object of the present invention is realized according to the following scheme: [0005] A method for cultivating cold-resistant evergreen trees, using silk cotton wood, boxwood...

AI Technical Summary

Problems solved by technology

Someone also tried to introduce foreign cold-resistant and drought-resistant tree species, but most of them were unsuccessful.