Grafting and seedling raising method of walnut tree seedlings

Abstract

The invention discloses a grafting and seedling raising method of walnut tree seedlings. The method comprises the following steps that 1, during December, annual or biennial seedlings of juglans sigllata are selected as rootstocks, and the rootstocks are vertically cut downward; 2, each scion is cut into two cut surfaces, and the cut surfaces are placed in a scion treatment solution for soaking for 1-2 hours after the scions are cut; 3, the cut scions are inserted into the cut rootstocks, the rootstocks are aligned with the phloem of the scions, drain grooves which are 0.5 cm wide and 1.5 cm long are formed in the portions of the lowest parts of the two faces of a cut of each rootstock downward, the depth of each drain groove is equal to that of the cut phloem, and the xylem is not destroyed; 4, after grafting, grafted parts are tightened and wrapped in grafting films, and the lower parts of the grafted parts wrapped in the grafting films are exposed out of the drain grooves. Accordingto the method, rotting after grafting is prevented, the success rate of grafting is increased, the grafting time is prolonged, and convenience is provided for grafting.

Description

technical field [0001] The invention relates to the technical field of walnut seedling cultivation, in particular to a method for grafting and cultivating walnut seedlings. Background technique [0002] Walnuts, also known as walnuts and Qiang peaches, are Juglandaceae plants. Together with almonds, cashew nuts and hazelnuts, it is also known as the world-renowned "four major dried fruits". Walnuts are rich in nutrients, containing 15-20 grams of protein per hectogram, more fat, and 10 grams of carbohydrates; Flavin and other multivitamins. [0003] Walnut trees are deciduous trees, generally 10-20 meters high, up to 30 meters high, with a trunk diameter of about 1 meter, and a lifespan of one to two hundred years, up to 500 years or more. The crown of the tree is open and semicircular or round-headed, with a diameter of 6-9 meters. Bark grayish white to dark brown, young trees with smooth bark, old trees with irregular shallow longitudinal fissures. The branches are th...

AI Technical Summary

Problems solved by technology

The seedlings of walnut trees are mainly raised by grafting. The existing grafting methods commonly used for walnuts include budding and splitting. Budding is generally carried out after budding in June. After budding is completed half a month, filming is required, which is labor-intensive and reserved for grafting. The cycle time is short, the weather temperature is high, the healing time of the walnut tree is long, the healing process is easy to rot, and the success rate is low; the existing split grafting is carried out in March every year. The long healing time makes it take a long time to wrap the film, and moisture is prone to appear in the film during the growth process, causing the callus to rot and making the grafting success rate low