High-scion and head-changing grafting method of carya illinoensis

Abstract

The invention belongs to the field of fruit tree and forest tree breeding and specifically relates to a high-scion and head-changing grafting method of carya illinoensis. The high-scion and head-changing grafting method of carya illinoensis comprises the following steps of: before sprouting of carya illinoensis in spring, keeping the trunk by about 1 m away from the ground surface and sawing off the part thereabove to form a stumping cut, and then downwards cutting open at the (symmetrical) edges of the two sides of the stumping cut by using a grafting knife, thereby forming two cuts which are 3cm long and have width determined according to the thickness of the scion, and then grafting; next, bounding with a plastic film, binding the graft with a kraft bag, wherein the diameter of the kraft bag is determined by the thickness of the stock, sawdust is filled in the kraft bag to be higher than the scion, and the humidity of the sawdust is 70%; and then tightening the upper opening of the kraft bag; and finally, covering the kraft bag with a plastic bag; one month later, removing the plastic bag is removed and tearing off the kraft bag. With the method, the high-scion grafting survival rate of carya illinoensis is higher than 98%; therefore, the high-scion grafting survival rate of carya illinoensis is effectively realized.

Description

technical field [0001] The invention belongs to the field of fruit tree and forest tree breeding, and in particular relates to a method for grafting hickory with thin shells for high grafting and head replacement. Background technique [0002] Thin-shelled hickory, also known as American hickory, is a species of Juglandaceae and Hickory. Native to the United States and Mexico, it is one of the most important oil-bearing dried fruit tree species in the world. Its shell is thin and easy to peel, its kernels are thick and fleshy, and it has a delicious taste and high nutritional value. The trunk is straight, the tree shape is beautiful, the roots are deep and the leaves are luxuriant, and it is an excellent tree species for greening and gardening around. At the same time, the wood is tough and dense, with dark red heartwood, yellow-white sapwood, high elasticity, and is not easy to deform and crack. It is an excellent timber tree species for construction and high-end furniture...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention solves the problem of low survival rate of the grafting of hickory with thin shells and high grafting, and provides a method for grafting of pecans with high grafting and replacement