Chestnut inlay grafting method

Abstract

Provided is a Chinese chestnut branch embedding grafting method. When stock or young trees reach the grafting standard, grafting is performed, and the grafting method includes the steps of scion grafting, two-incision grafting, management performed on the current grafting year and pruning of live tree columns. Because the cortical layers of seedlings of nursery land and the cortical layers of the young trees which are planted newly are thin, the branch embedding grafting method can effectively protect the critical layers of branches and trunks, and the method is simple, practical and high in survival rate. Through the method, coppice shoots, generated after grafting, of the branches and the trunks can be removed in time or bud picking is performed as soon as possible, loss of tree liquid nutrient is reduced, and grafted buds can grow healthily and strongly. The method is particularly suitable for cultivating grafting seedlings in the nursery land and being used in a Chinese chestnut orchard where the young trees are newly planted, and the method can also be used for grafting of the branches and the trunks, with thin critical layers, of adult Chinese chestnut trees and grafting seedling cultivation of other fruit trees.

Description

technical field [0001] The invention relates to a method for grafting fruit trees, in particular to a method for grafting chestnut grafts. Background technique [0002] The grafting of chestnut trees is somewhat specific to the grafting of other fruit trees: (1) During the growing season, the branches of chestnuts contain tannin substances in the sap. When this substance encounters oxygen in the air, it will undergo a chemical reaction and form an oxidation barrier. layer, showing a dark brown phenomenon, which directly affects the survival of grafting, or even fails to survive. (2) Adult trees and old trees have a thick bark, which is prone to wrinkling and peeling; young trees have extremely thin cortex, which is easy to cause damage and form dark brown spots. (3) The latent buds at the base of chestnut branches have a long life span and many, and they are easy to germinate a large number of elongated branches when encountering mechanical stimulation. ⑷ The scion used fo...

AI Technical Summary

Problems solved by technology

⑷ The scion used for chestnut grafting is not well preserved, easy to lose water, and the survival rate of grafting is reduced

The interface of these two grafting methods heals slowly and the survival rate is low

[0004] Chinese patent CN100409738 discloses a "grafting method for chestnut trees", which is adapted to the "happy, branch-pulling, early bud bud technology", and has the advantages of avoiding the loss of grafted trees during the bleeding period and avoiding the occurrence of strong wind damage to the branches. Its shortcomings are: it is suitable for grafting large trees, the survival rate is low, and the grafting steps are more complicated