Method for increasing survival rate of grafting of walnut tree

Abstract

The invention relates to a method for increasing survival rate of grafting of a walnut tree. The method comprises the steps: cutting up a broken end of a tree trunk (1) as a rootstock into a V-shapedcut, splitting tip parts of the two ends of the V-shaped cut along a bark (1a), and separately splicing a scion (2); and cutting up lower parts of walnut tree branches as the scions into beveled edges, chipping off surface-layer withered barks from scions at the back of the cut in a manner of reserving bast layers (2a) of the scions, then, inserting tips of cut sections of the scions between splitbarks and wood of the rootstock in a manner that a fabric-exposed section (3) of 0.8cm to 1.2cm is reserved at the upper end of the cut of each scion, and finally, closely bundling and wrapping parts, located below fabric-exposed sections, of the scions and a spliced section of the rootstock with plastic tapes (4). According to the method, the survival rate of grafting of walnuts and the growth vigor of the scions are greatly increased, the operation is simple and practical, and the production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of walnut tree grafting methods. Background technique [0002] In the existing walnut tree grafting methods, for the grafting of thicker scions, the tongue grafting method is usually adopted. The method is to saw off the rootstock, flatten the wound, and remove the old bark at the position where the stock is ready to be grafted. , to expose the tender skin, then cut the scion’s grafted end obliquely with a slitting knife in the middle, then separate the bark at the tip of the scion’s oblique opening from the xylem, insert the tip of the xylem of the scion into the longitudinal incision of the rootstock, and cut the scion’s grafted end The skin is attached to the wound of the tender skin of the rootstock on the outside, so that the scion is connected with the cambium of the rootstock and the living cells of the tender skin of the rootstock, and finally it can be tied tightly with a plastic strip. The Chinese...

AI Technical Summary

Problems solved by technology

Adopt above-mentioned these methods, there is the problem that operation is more complicated and survival rate is low, traces it to its cause, the one is that rootstock bark is peeled off old bark, exposes the cell that lives in phloem of tender skin, although also can grow callus tissue, but the callus tissue of callus still can grow. The amount of wound tissue is too small; the second is that the scion is inserted into part of the bark, and after the xylem is separated, callus is rarely formed on the outside of the tongue-shaped xylem, and callus is rarely formed on the inside of the bark, so it is difficult to heal with the rootstock; The cortex left after the old skin of the rootstock is peeled off is very thin, and the thin skin cracks after the scion ligule xylem is inserted. Since the rootstock cortex is thin and cracked, calluses are rarely formed near the crack, which affects the healing of both sides

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