Efficient bud grafting and reproduction method for ligustrum compactum ait

Abstract

The invention relates to a vegetative propagation method, in particular to an efficient bud grafting and reproduction method for ligustrum compactum ait. The efficient bud grafting and reproduction method for the ligustrum compactum ait comprises the following steps: selecting 1 to 2-year-old ligustrum compactum ait seedlings as stocks, cutting off the stocks in a manner of being parallel to the ground, and selecting a new branch as a bud grafting acceptor; selecting an annual branch of a plant which is 5 or more years old as a reproduction material; in the middle of March and the middle of August, performing grafting operation by adopting a peltate bud grafting mode; and after the grafting, performing film removal, stock cutting, fertilization, binding, bud picking, weeding and watering management. Extreme low-temperature freeze injury is prevented in winter. The survival rate of the ligustrum compactum ait reproduced by the method is 96.1 percent or above, and the tree seedling rate is 98.0 percent or above; furthermore, the ligustrum compactum ait can keep qualified characters of a mother plant, and the plant grows well in the later stage; the advantage is obvious, and the greening effect is stable; and the efficient bud grafting and reproduction method meets a large-area popularization and application demand.

Description

technical field [0001] The invention relates to a plant asexual propagation method, in particular to a high-efficiency budding propagation method of privet privet. Background technique [0002] Ligustrum lucidum is a rare transitional evergreen arbor broad-leaved tree species. In the northern region, the general tree height is 6-10m, the crown is ovate, the bark is gray-green, smooth and not cracked, the leaves are leathery and brittle, and the length is 6-12cm. As an evergreen species, privet privet does not have strict requirements on the climate. It can usually withstand low temperatures around -12°C and is slightly tolerant to water and humidity. The evergreen leaves of Ligustrum big-leaf are full of vitality all the year round, and they are highly resistant to various toxic gases in the atmosphere, such as sulfur dioxide, chlorine, hydrogen fluoride and lead vapor. The leaves are also highly resistant to dust and smoke pollution. Resistance and blocking ability can imp...

AI Technical Summary

Problems solved by technology

[0004] The amount of privet privet seeds is relatively large. When the excellent trees screened in various places are propagated by sowing, it is found that the germination rate of the seeds is often only 50-70%, and the survival rate of the seedlings after germination is not high. The cycle is long, the traits are unstable, and the growth rate, stress resistance, tree shape and other traits are quite different after afforestation, which affects the control of Ligustrum lucidum seedlings.

In order to keep the excellent characters of single plant of Ligustrum lucidum, the method of artificial cloning can be used to raise seedlings. It is found through experiments that the survival rate of Ligustrum lucidum propagated by cuttings often does not reach 30%.

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