A kind of seedling raising method of walnut hard branch square bud grafting

Abstract

The invention discloses a hard branch patch budding seedling culture method for juglans regia. By means of the technology, the grafting time can be shortened, the working efficiency can be improved, the seedling breeding cycle can be shortened, and the seedling commercialization can be enhanced. The hard branch patch budding seedling culture method for juglans regia includes the first step of scion collection, wherein twigs, with fully mature buds, on the upper half parts of annual branches on the periphery of a crown are collected; the second step of scion treatment and storage, wherein after the scions for grafting are collected, every 30-50 scions are tied with a tag as a bundle and then are stored; the third step of stock selection, wherein robust seedlings with the ground diameter reaching 0.8 cm or above and without plant diseases or insect pests are selected as stocks; the fourth step of grafting, wherein the scions treated in the second step are grafted onto the stocks in the third step according to the grafting method of hard branch patch budding; the fifth step of post-grafting management, wherein the post-grafting management includes supplementary grafting, unwanted sprout removing, stock pruning, untying, fertilizer and water management and pest and disease control.

Description

technical field [0001] The invention relates to the technical field of economic forest cultivation, in particular to a method for cultivating walnut hard branch square bud grafting. Background technique [0002] Walnut (Juglans) is a deciduous tree belonging to the family Juglandaceae. It is an important nut and woody oil tree species with high nutritional value and high medical and health care functions. Its distribution and cultivation spread over more than 50 countries and region has become an important international trade commodity. Walnut has both economic, ecological, social and cultural functions, and can provide high-grade wood and various industrial raw materials. It has become a pillar industry of the rural economy in many areas of China. and ecological security are playing an increasingly important role. my country has a long history of walnut cultivation. The traditional construction of walnut gardens is basically based on seedlings, resulting in late fruiting,...

AI Technical Summary

Problems solved by technology

The square budding method is to sow walnuts in the same year. After the seedlings grow for one year, leave 3-5cm flat stubble from the ground before germination in the second year. , this method is labor-intensive, time-consuming, low in work efficiency, slow growth of seedlings, low grade of seedlings, low emergence rate, poor resistance and low commercialization degree; Do "water release" (let the sap such as tannins overflow from the fracture or wound when processing the rootstock), the "wound flow" will suffocate the respiration of grafted wound cells, make it difficult to form callus, cause the interface to rot, and seriously affect the grafting Survival rate