Ulmus densa grafting propagation method

Abstract

The invention relates to an ulmus densa grafting propagation method. The method comprises the following steps of 1, scion selection and treatment; 2, stock selection; 3, grafting; 4, grafting nursery stock management and maintenance. The ulmus densa grafting propagation method is simple, practical, high in operability, high in survival rate and capable of achieving the purpose of rapid forming, ulmus densa can be formed in the current year of grafting and is 1.5 m tall or taller, grafting and seedling growth are performed in the same year, and economic benefits are remarkable.

Description

technical field [0001] The invention relates to a method for grafting Ulmus rotundum, in particular to a method for grafting and propagating Ulmus rotundum. Background technique [0002] Elm is a deciduous tree with deep roots. It is an excellent ornamental plant produced in the Soviet Union and later introduced to Xinjiang, Inner Mongolia and other places in my country for cultivation. It has straight trunks, spherical crowns, beautiful tree shapes and strong tolerance. It is one of the excellent landscaping plants in the north, but elm elm rarely bears fruit, and it is often propagated by grafting, and the rootstock is generally white elm. Branch grafting, cutting grafting, skin grafting, split grafting and T-type grafting can be carried out in spring, summer and autumn. These commonly used grafting methods are not fully applicable to the grafting of elm elm. [0003] In these commonly used grafting methods, there will be various reasons for the low survival rate of gra...

AI Technical Summary

Problems solved by technology

These commonly used grafting methods are not fully applicable to the grafting of elm

[0003] In these commonly used grafting methods, there will be various reasons for the low survival rate of grafting. This includes the low survival rate caused by improper handling of the scion before grafting: for example, improper collection and storage of the scion, resulting in dehydration and inactivation of the scion or Premature germination, or improper handling of the wax seal of the scion before grafting, resulting in the death of the scion or the peeling off of the wax seal; there are also improper operations during the grafting process: for example, the phloem and xylem of the rootstock are peeled off during the grafting process, and the cambium between the rootstock and the scion Unable to be in close contact, unable to form callus and cause the scion to dry up and die; what's more, after the grafting is completed, the maintenance management is not in place and the graft survival rate is not high: for example, the maintenance management after grafting is weak, the tree is sluggish, the cambium callus is fragile, Very prone to various pests or physical breakage of the scion

Even if the splicing is carried out, the forming speed of the elm elm will be slow, or the tree will be weak, and the tree shape will be partial, which will affect the speed of the seedlings coming out of the nursery