Walnut top grating method

A technology of high grafting and walnut, applied in the directions of botanical equipment and methods, horticulture, application, etc., can solve the problems of instability, the characteristics of injury and flow have a great influence on the survival rate of high grafting, and the survival rate of walnut grafting is low. The effect of improving the survival rate

Inactive Publication Date: 2014-10-01
SICHUAN AGRI UNIV
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AI Technical Summary

Problems solved by technology

One of the main problems in the improvement of low-quality walnuts is that the survival rate of walnut grafting is low and unstable, and the wounding characteristics of grafting have a great impact on the survival rate of high grafting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] (1) Preparation of rootstock: choose 1-year-old pig iron walnut as rootstock, randomly select a rootstock that grows robustly, is well-developed, free from disease and insect damage, and has a diameter of 1.0 to 1.5 cm. Before grafting, cut the rootstock at the grafting place, and the incision is a plane;

[0015] (2) Harvesting and cold storage of cuttings: Select the 5-year-old Chuanzao series of walnuts with good growth conditions and consistent growth, and collect them in January during the dormant period. , 1-year-old branches with small pith, no pests and diseases, 1.0-1.5cm in thickness, 50-100cm in length, sorted into bundles and stored in a fresh-keeping controlled atmosphere warehouse at 3°C;

[0016] (3) Preparation of the scion: before grafting, cut the scion from the scion, the length of the scion is to keep 2 to 3 buds, and the 3 to 4 cm place above the lower incision of the scion is the knife entry position, and start to cut the first inclined plane, the s...

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Abstract

The invention relates to a grafting method, in particular to a walnut top grating method. Scions are collected in January during the dormancy period and stored in freshness-retaining air-conditioned cold store with the temperature of 3 DEG C, bark grafting or bark and whip grafting are carried out during the last ten days of the March and the middle ten days of the April, stock sprouts are removed in time after grafting, and pinching is carried out when young sprouts grow to be 60-80cm. The top grafting survival rate can exceed 85% all the year around. According to the walnut top grafting method, the scions are refrigerated. Thus, the contents of soluble protein, the total organic carbon and potassium in the scions can be improved, the contents of tannin, plant polyphenol, soluble sugar and sodium in the scions can be reduced, the contents of water, total nitrogen and magnesium in the scions are not obviously affected, and good material foundation for improving the grafting survival rate is improved. The grafting is carried out during the last ten days of the March and the middle ten days of the April, the water content and the bleeding exudation of the stocks are the lowest, the temperature is favorable for healing wound of cell division, the early spring with large temperature fluctuation is avoided, and the favorable environmental conditions for improving the grafting survival rate is provided. The appropriate top grafting method of bark grafting or bark and whip grafting is chosen. The bark grafting method or the bark and whip grafting method is simple and easy to learn, so that the technical guarantee for improving the grafting survival rate is provided.

Description

technical field [0001] The invention relates to a grafting method, in particular to a high-grafting method for walnuts. Background technique [0002] There are two populations of walnut and iron walnut in my country, with large genetic variation, uneven quality, and a low level of development of improved varieties. It is urgent to implement the improvement of low-efficiency forests. One of the main problems in the improvement of inferior walnuts is that the survival rate of walnut grafting is low and unstable, and the wounding characteristics of grafting have a great influence on the survival rate of high grafting. Therefore, it is necessary to explore a set of effective high-grafting methods to improve and stabilize the survival rate of high-grain grafting and accelerate the process of walnut low-efficiency forest transformation. Contents of the invention [0003] In view of the above-mentioned technical problems, the present invention provides a high-survival and stable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/06
Inventor 肖千文周兰英蒲光兰赖腾跃
Owner SICHUAN AGRI UNIV
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