Method for replacing variety of tea-oil tree by high-grafting in autumn

Abstract

The invention discloses a method for replacing the variety of a tea-oil tree by high-grafting in autumn, namely, a notch side graft. The method comprises the following steps: stock whittling: selecting a flat and straight part of a stock, and gashing an H-shaped scuffing on the selected part until the scuffing reaches a cambium; grafting: uncovering upper and lower cortexes of the stock along the middle part of the scuffing, embedding a scion, closing the cortexes of the stock, and enabling laminas and axillary buds to expose; and binding and cover adding: binding the closed part, then carrying out film cover adding and final-period management. By using the method disclosed by the invention, the defects that the survival rate of scion buds is affected by high temperature in summer and new treetops after crown grafting in early summer are easily damaged by freeze are overcome, the final-period management is simple, the purpose of improving yields rapidly after a variety change is performed can be achieved, the survival rate of scion buds is high (more than 90%), the treetop budding is neat, and the blooming rate of shoots formed at the second year of scion bud germination can reach 50%, therefore, the effect of rapid forming can be achieved, the cost can be saved, the fruiting can be advanced and the economic benefits can be improved; and meanwhile, the method can be easily accepted by producers and is convenient for promotion and application.

Description

technical field [0001] The invention relates to the field of grafting of economic forest tree species, and more specifically relates to a new method of high-grafting and replanting of camellia oleifera in autumn-subcutaneous grafting. Background technique [0002] Camellia oleifera is an important woody edible oil tree species unique to my country. It is also known as the world's four major woody oil plants together with olive, oil palm and coconut, and is also known as my country's four major woody oil plants together with tallow, tung tree and walnut. At present, the area of ​​camellia oleifera in my country is about 45 million mu, which is widely distributed in 18 provinces (regions) in the south. The content of unsaturated fatty acid, oleic acid and vitamin E in tea oil is higher than that of olive oil. It is known as "Oriental olive oil" and has a very broad market prospect. However, the average yield of Camellia oleifera in my country is only about 5 kilograms per mu....

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the above purpose, an innovative method has been carried out to solve the problems of low survival rate, severe freezing damage and high labor cost of conventional Camellia oleifera grafting in summer.

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