Seedling walnut bark tongue access grafting method

Abstract

The invention relates to a seedling walnut bark tongue access grafting method, which comprises the following steps that prepared walnut scions are cut into horse ear shapes, and in addition, the lower ends are pinched open by hand, so that the xylem part is separated from the bark; the main stem smooth part is subjected to stem cutting, and old bars are cut away; the lower end xylem parts of the prepared scions are inserted under the barks of stocks, two full buds are reserved at the upper ends, and the lower end bark layers of the scions are combined with the new bark layers of the stocks subjected to the old bark removal; white areas are exposed around the scions so that the wounds can be heeled and the callus tissues can be formed; the wounds are tightly covered by mulching films, and then, the scions are fixed by plastic bags. After the stocks and the scions are fixed, the plastic bags sheath the scions from the upper ends to positions under the connectors, and the openings of the plastic bags are tightly tied for moisture preservation. A paper roll rolled by newspaper sheaths the outside of the plastic bags for shading sun-proof protection, the lower end is tied in, and the upper end is folded down. When the method provided by the invention is adopted, the walnut trees bear fruit 5 to 7 years earlier than the walnut trees cultured in a seedling way, the quality is good, the stable transfer of high quality and good variety features is ensured, and the problem of great lateral generation separation of seedlings can also be solved.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a grafting method of tongue grafting of seeded walnuts. Background technique [0002] Since the late 1980s, the exploration of walnut seed tree grafting technology has not stopped all over the country. Grafting methods range from cleave grafting, cutting grafting, skin grafting, to the final skin tongue grafting, and the survival rate has gone from unstable at the beginning (10-70%) to stable at the end (above 93%). 20 years of exploration and practice. [0003] The tongue grafting method of walnut seedling trees of the present invention, so far, through repeated tests, the grafting technology has been fully mature, mainly adopts the tongue grafting method, the method is to use agricultural film to wrap the scion, cover plastic bags to keep moisture, and use newspapers to shade . With appropriate time and appropriate technical measures, the survival rate of grafting can be...

AI Technical Summary

Problems solved by technology

[0004] In order to improve the quality and output of walnuts, aiming at the problem of low survival rate of walnut seedling grafting at present, a kind of grafting method of tongue grafting of living walnuts is provided, and the present invention comprises the following steps:

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