Method of modifying fruit trees by grafting ultralong scions

Abstract

The invention provides a method of modifying fruit trees by grafting ultralong scions. The method comprises the steps of S1, scion collecting and grafting; S2, grafting operation and management after grafting. The grafting method comprises the steps of scion water soaking, rootstock cutting, scion wood cutting, scion wood cuttage grafting and grating opening binding-up and clean water irrigation. According to the method of modifying the fruit trees by grafting the ultralong scions, technologies are adopted of subcutaneous grating of first ultralong scions of 70-80 cm, second ultralong scions of 40-50 cm and long sliced faces of 10 cm, simultaneous grafting of inter stock variety branches and grafting stocks, grafting of multiple high-order long or short scions and bridge grafting of long sliced faces and long attached faces, and clean water irrigation of grating openings is adopted to save and remedy sick trees and conduct variety improvement and tree shape modification. The ultralong scions have the advantages that the ultralong scions have many growth points, shaping is fast, the connection faces of the long sliced faces and the grating openings are large, the grating openings of the multiple scions heal quickly, and clean water irrigation after grating is adopted, which effectively increases the grafting survival rate, and improves the grafting efficiency.

Description

technical field [0001] The invention relates to a method for transforming fruit trees, in particular to a method for grafting and transforming fruit trees with super-long scions. Background technique [0002] Since the 1990s, my country's apple cultivation has tended to be densely planted, with miniaturized trees, dwarfed anvils, dwarfed intermediate anvils and short-branched varieties, and spindle-shaped and columnar tree shapes. But there are still varieties of inferior, impure, mixed and the incidence of apple rot disease, and there is no effective solution at present. [0003] The variety is not good. In recent years, in general newly planted orchards, most of the varieties are impure, not good, and mixed. Especially when seedlings are purchased from informal professional seedling breeding research units, the purity of good variety seedlings cannot be guaranteed. For example, in 2009, among the 920 dwarf middle stock seedlings planted in Beijing Tongzhou Agricultural Ex...

AI Technical Summary

Problems solved by technology

At present, for low-yield orchards with old, weak and diseased trees, it is generally used to saw off the diseased branches and replant the seedlings until the diseased trees are felled, but the effect is not ideal.

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