Application of malus robusta as grafting stock of green apples

Abstract

The invention relates to an application of malus robusta as a grafting stock of green apples. According to the application, the malus robusta is adopted as the grafting stock of the green apples, and a screening method of the stock comprises the steps of 1 screening out the stock with drought tolerance, salt tolerance and cold tolerance and 2 determining the graft compatibility of the green apples and different kinds of crabapple. After the green apples are grafted to the malus robusta grafting stock, the grafting survival rate can be improved by 13.50% compared with the mode of grafting the green apples to a contrast bredia rotundifolia stock; the growth amount of young sprouts is increased by 57.53% compared with that of the contrast stock. The area of leaves is 15.88% larger than that of the contrast stock. The net photosynthetic rate is 26.66% higher than that of the contrast stock. The grafting stock has high cold tolerance, drought tolerance and salt tolerance, is propagated through seeds, the application is convenient, grafting is carried out through a conventional grafting method, the method is simple and can be conveniently grasped by orchard workers, and popularization is easy.

Description

technical field [0001] The invention belongs to the technical field of planting high-acid apples, in particular to the selection of rootstocks suitable for grafting green treasure apples, and in particular to the application of an octagonal crabapple as a rootstock for grafting green treasure apples. Background technique [0002] Apple is a worldwide fruit. my country is the world's largest apple producer. Most of the apple varieties cultivated in production are fresh varieties, and there are few high-acid varieties used for apple juice processing (the fruit titratable acid content is not less than 0.6 % of apples are high-acid apples). Since the early 1990s, my country's apple juice concentrate processing industry has developed rapidly, and the export volume of apple juice has increased significantly. However, the high-acid apples grown in my country are far from meeting the needs of juice processing, and most of the raw materials used in processing are It is the defective f...

AI Technical Summary

Problems solved by technology

Since the early 1990s, my country's apple juice concentrate processing industry has developed rapidly, and the export volume of apple juice has increased significantly. However, the high-acid apples grown in my country are far from meeting the needs of juice processing, and most of the raw materials used in processing are It is the defective fruit and fallen fruit in the fresh fruit, so the acidity of the produced apple juice product is not enough, the quality is low, which greatly affects the competitiveness of the fruit juice product in the international market

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