Square bud grafting method for hot-sticky skin of ailanthus altissima (mill)swingle

Abstract

The invention relates to a square bud grafting method for hot-sticky skin of ailanthus altissima (mill)swingle. The square bud grafting method comprises the following steps of S1, stock selection, specifically, taking ailanthus altissima seedlings as stocks; S2, grafted bud selection, specifically, selecting plump axillary buds which are on annual branches of the ailanthus altissima (mill)swingleand have strong and full petioles for half wrapping as grafted buds; S3, bud slice cutting, specifically, cutting skin parts with the length of 1.5-2.4 cm and the width of 0.8-1.2 cm from the positions which are 0.8-1.2 cm above the axillary buds to serve as bud slices; S4, grafting, specifically, cutting off the skin parts with the area 1-1.1 times that of the bud slices from smooth parts, with the diameter of 0.8-1.5 cm, of the stocks, attaching the bud slices to the positions where the skin parts of the stocks are cut off, enabling the bud slices to be in butt joint with the skin edges, close to the left / right side and the lower side, of the stocks, and binding the bud slices with plastic films; and S5, management after grafting, specifically, reserving 2-5 compound leaves above grafting parts of the stocks, unbinding after 15-20 days, cutting the stocks from the positions 5-8 cm above the grafting parts, removing stock tillering buds in time, and performing conventional managementafter grafted buds germinate normally. According to the method, the survival rate of the grafted buds reaches 85% or above, the excellent characteristics of variants can be kept, the tree body formingtime is shortened, flowering and fruiting are advanced, and rapid development of ailanthus altissima (mill)swingle breeding is promoted.

Description

technical field [0001] The invention relates to the technical field of plant breeding, in particular to a method for budding of red fruit Ailanthus ailanthus hot sticky skin cubes. Background technique [0002] Ailanthus altissima (Ailanthus altissima) is native to China. It belongs to the bitter wood family and is a deciduous tree. It is one of the five native tree species in the northern region. The whole plant can be used, grows rapidly, and has strong stress resistance. Ailanthus altissima (Mill) Swingle is a new mutant strain of Ailanthus altissima. Its bright red cones are very bright in summer, and the fruiting period lasts up to 3 months. The ornamental effect is excellent. It is a rare large-scale fruit-viewing tree. As a kind of garden ornamental tree species with great development potential, the industrialization development of Ailanthus red fruit is still in its infancy, and the main limiting factor is that the breeding technology of improved varieties is not yet...

AI Technical Summary

Problems solved by technology

In the above method, when rootstock and scion belong to different families and genus, the affinity between rootstock and scion will be reduced to a certain extent, making it difficult to popularize and apply in production.

At present, the grafting technology of Ailanthus sinensis is still in the tentative test stage, and has not yet matured. As a new variant of Ailanthus ailanthus, there is no report on the grafting and breeding technology.

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