Grafting method capable of promoting asexual reproduction of populus euphratica

Abstract

The invention relates to a grafting method capable of promoting asexual reproduction of populus euphratica. The method comprises the following steps: (1) irrigation and pest control before grafting; (2) selection of a rootstock: selecting annual Populus bolleana as the rootstock, wherein a tree trunk of the Populus bolleana is straight from top to bottom, and the Populus bolleana is vigorous in growth and full in scion; (3) selection of populus euphratica scion: selecting a bud as the populus euphratica scion, wherein the middle portion of a seeding branch is full, the seeding branch has 4-6 buds and lengths of the buds is 8-12 millimeters; (4) cutting a cross-shaped incision on a rootstock Populus bolleana trunk at a height of 1-1.2 meters with a grafting knife, and levering the incision; (5) clipping the lower end of a populus euphratica scion lower bud into a rhombus and obtaining a clipped populus euphratica scion; (6) inserting the clipped populus euphratica scion into the incision position around the Tomb-sweeping Day and binding tightly, and then the grafting is finished; (7) irrigating and fertilizing timely after the grafting is finished; and wiping off all the buds ready to sprout when the populus euphratica starts to sprout, and spraying pesticides when 3-4 true leaves grow on the populus euphratica seedling. The grafting method capable of promoting the asexual reproduction of the populus euphratica can effectively stop a populus euphratica population from being weak in regeneration and aging.

Description

technical field [0001] The invention relates to a technique for restoring and reconstructing vegetation in the degraded Populus euphratica forest ecosystem in arid areas, in particular to a grafting method for promoting asexual reproduction of Populus euphratica. Background technique [0002] Populus euphratica, also known as Populus euphratica, belongs to Salicaceae and is the most primitive and ancient tree species in the genus Populus. It is the only arbor tree species in the desert area of ​​China. It has the reputation of "it can live for a thousand years without dying, die for a thousand years without falling, and fall for a thousand years without being immortal". Populus euphratica is distributed in North Africa, the Middle East, and the river banks and low-humidity saline lands in the arid regions of Northwest my country. It is an important tree species in the desert and semi-desert regions of Northwest my country. The Tarim Basin and Ejina Banner in Inner Mongolia a...

AI Technical Summary

Problems solved by technology

The reproduction of Populus euphratica is divided into two types: sexual reproduction and asexual reproduction. Considering the external conditions such as water and terrain in the nursery area, relying solely on sexual reproduction can no longer solve the problem

The vegetative propagation of Populus euphratica includes cutting roots to promote tillers, cuttings and grafting, etc. However, hardwood cuttings are complicated and difficult, and the survival rate is low, and considering the long-term maintenance of Populus euphratica forests, root cutting and promoting tillers cannot solve the real problem