Method for performing high position grafting on grapes by using multiresistant rootstocks

Abstract

The invention provides a method for performing high position grafting on grapes by using multiresistant rootstocks, which solves the problems that graft unions are easy to fracture, scion parts are easy to take root, the graft unions and trunk (vine) parts near the ground are susceptible to pest infection, and the like according to a special soil-buried and cold-resistant cultivation mode of grape culture in the northern areas of China. The method comprises the following steps of: a, selecting the varieties of the rootstocks; b, cultivating the rootstocks, namely, in the first year, selecting annual high-quality seedlings of the multiresistant rootstocks to perform field planting and performing winter pruning by reserving 50 to 60-cm rootstocks according to the growth condition of the rootstocks in autumn, so that the rootstocks grow to become the rootstocks on which greenwood graft can be performed in May and June in the second year; c, selecting the varieties of scions; d, collecting the scions, namely collecting semi-lignified young shoots or side shoots to serve as the scions; e, performing high position grafting, namely, selecting the rootstocks with the thickness matched with that of the scions, cutting off the rootstocks in 70 to 90-cm distance away from the ground surface, splitting the rootstocks downwards from the middle parts of fracture surfaces to form cuts, and inserting the cut scions into the cuts to perform grafting operation; and f, performing management after the graft operation. The method is suitable for table grape varieties and also suitable for wine grape varieties.

Description

technical field [0001] The invention relates to a method for grafting grapes, in particular to a method for high-position grafting of grape multi-resistant rootstocks. Background technique [0002] Grape is one of the dominant fruit trees in my country. However, more than 90% of the grape cultivation area in my country adopts the traditional self-rooted seedling cultivation method, resulting in poor cold resistance, drought resistance, salt and alkali tolerance, and abnormal plant growth; Root shoots are vulnerable to phylloxera. Grape phylloxera is a destructive quarantine pest. Once it occurs, it will cause devastating losses to the grape industry. The only effective way to control grape phylloxera is to use phylloxera-resistant grape rootstocks. In addition, choosing a suitable rootstock can improve the cold resistance and drought resistance of grapes, and improve the growth results and fruit quality of grapes. [0003] Therefore, the use of multi-resistant rootstocks fo...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of method of high-level grafting of grape multi-resistant rootstocks for the soil climate conditions and the unique cultivation mode of burying the cold protection in the main producing areas of viticulture in the north of my country, so as to effectively solve or alleviate the problem of burying the soil for cold protection in winter. When unearthed and put on the shelf, the grafting interface is easy to break; the grafting interface is close to the ground, and the scion part is easy to take root; the grafting interface and the trunk (vine) part near the ground are prone to grape diseases and insect pests, poor stress resistance and other problems. The development of grafting cultivation