A kind of grafting method of iron walnut tree

Abstract

The invention discloses a method for grafting big juglans sigillata trees and belongs to the technical field of cultivation of agriculture and forestry. The method comprises the following steps: selecting excellent varieties, collecting scions, sealing wax and preserving scion woods, determining grafting time, selecting big juglans sigillata trees, selecting grafting branches, selecting water extracting branches, processing grafting unions, cutting the scions, grafting, draining water of the grafting unions, scratching the lower parts of the big trees and discharging water, and managing after grafting. By virtue of the method, the grafting survival rate of the big juglans sigillata trees reaches over 94%; the high yield can be achieved in three years after grafting; the method is applied and popularized for improving the big juglans sigillata trees, improving low-yield forests in walnut and fruiting walnuts in advance; the method has remarkable economic benefits, ecological benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of agriculture and forestry cultivation, and in particular relates to a method for grafting large iron walnut trees. Background technique [0002] Walnut (Juglans. spp) It is an important nut and woody oil tree species in my country. With the rapid development of my country's economy and the continuous improvement of people's living standards, urban and rural residents have more and more demand for walnuts, and production is far from meeting their needs. [0003] The large iron walnut trees in Yunnan are widely distributed, with a large number, low yield, poor quality and low economic benefits, which have seriously affected the rapid development of walnut production. Through the transformation of iron walnut forest, its economic value can be significantly improved, and farmers' income can be increased. It is an important means for farmers in mountainous areas to get rid of poverty and become rich. [0004...

AI Technical Summary

Problems solved by technology

[0005] At present, the traditional grafting technology still has the following problems: one is that the traditional grafting is generally carried out when the tree body germinates in the beginning of spring, and the grafting is now carried out. It is conducive to the water transportation of the rootstock, resulting in a low survival rate of grafting; second, the traditional scion collection is not wax-sealed, resulting in dehydration and death of the scion; The high content of substances such as interface tannin and the lack of oxygen in the process of callus formation lead to low survival rate of grafting; the fourth is that traditional grafting methods mostly use split grafting, and the contact area between rootstock and scion is small, which is not conducive to callus Tissue formation, resulting in a low survival rate; fifth, the traditional method does not injure and discharge water at the lower part of the tree, which causes wounds and flow accumulation at the grafting interface, which is not conducive to survival; sixth, the traditional grafting method does not leave pumping branches and has no transpiration pull. , causing the grafting interface to dry out and lack water, and the survival rate is low

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