Method for cultivating tree-rose semi-finished rose trees through U.S.A. M1 and M2 rootstocks

Abstract

The invention discloses a method for cultivating tree-rose semi-finished rose trees through U.S.A. M1 and M2 rootstocks. The method adopts the method of grafting a cold-resistant rose variety onto U.S.A. tree-rose rootstocks, and greatly improves the cold resistance of the rootstocks by utilizing the influence of the grafted variety on the rootstocks, thereby achieving the aim of allowing tree-like rose rootstocks to safely overwinter in open air in northern China. Meanwhile, the method utilizes the characteristic of roses in vigorous growth to accelerate the thickening growth of the cultivated tree-rose rootstocks. Through the cultivation of the rose trees with certain crown-width semi-finished products, the aim of allowing tree-like roses to be shaped early and leave nurseries early is achieved.

Description

technical field

[0001] The invention relates to the field of garden plant cultivation, in particular to a method for cultivating semi-finished Chinese rose trees with American M1 and M2 rootstocks. Background technique

[0002] At present, American rose rootstocks M1 and M2 perform well in the south of the Yangtze River in my country, and can be directly grafted with rose varieties to cultivate tree-like roses. Although they grow rapidly in the north of the Yangtze River, due to their poor cold resistance and physiological drought resistance, Surviving the winter in the open air is difficult, difficult to popularize and apply, and there is still no solution so far. Contents of the invention

[0003] The purpose of the present invention is to provide a solution to the problem of tree-like roses overwintering in the open field in northern my country, so that tree-like roses can grow well in the north, and at the same time solve the problem of accelerated growth of their dry d...