Gold leaf acer negundo twig cutting seedling method

Abstract

The invention discloses a gold leaf acer negundo twig cutting seedling method which comprises the steps of cutting bed preparation, cutting stem selection, cutting shoot making, cutting shoot hormone rooting induction, cutting, post-cutting management and the like. Perlite is adopted as a substrate of a cutting bed, and a magnetic field network, an electric field network and an automatic atomizing system are arranged; cutting stems are selected within May, June and July; cutting stems with the diameter ranging from 4 mm to 6 mm are selected as cutting shoots and soaked in a growth regulating agent for 1 min to 2 h; a straight cutting method is adopted for cutting the cutting shoots into the seedbed, the automatic atomizing system carries out automatic atomization after cutting is finished when the air humidity is smaller than 90%; in the period from cutting to callus forming, the shading rate is kept 75%, the relative humidity is kept from 90% to 91%, and the temperature is kept from 30 DEG C to 40 DEG C; in the middle and later periods of cutting, the air humidity is controlled to range from 70% to 80%, the temperature is controlled to range from 30 DEG C to 40 DEG C, and the cutting shoots are processed by 100000 V voltage for 2 h every day. According to the gold leaf acer negundo twig cutting seedling method, the cutting environment most suitable for growth of gold leaf acer negundo twigs is obtained through screening by adjusting and controlling cutting shoot obtaining time, the cutting environment, the cutting shoot selection, the cutting substrate selection, the selection of hormone promoting rooting and other aspects, and the method is stable and efficient for gold leaf acer negundo twig cutting propagation.

Description

technical field [0001] The invention belongs to the technical field of plant vegetative propagation, and in particular relates to the twig cutting technology of the golden-leaved maple leaf. Background technique [0002] Acer negundo'Kellys gold' is a tall deciduous tree in the family Aceraceae, and is a cultivated variety of Acer negundo in North America. America, widely used in urban greening in North America and Europe. It is widely planted in Russia and used to build shelter forests. It was introduced to China in the late 1980s. It has a spherical crown, smooth branchlets, and is often covered with white wax powder. Odd-numbered pinnate compound leaves are opposite, with 5-7 large leaflets. The color is soft, the leaves are yellow throughout the growing season, bright yellow in spring, gradually turning to yellow-green, not burnt leaves in summer, racemes, flowers without petals; infructome drooping, two wings develop into acute angles, the first leaves bloom in May, F...

AI Technical Summary

Problems solved by technology

[0004] Seed sowing variability of Acer aureus compound leaf is large, which is not conducive to ensuring the excellent traits of this variety. Currently, Acer aureus compound leaf is mostly propagated by grafting, but the technical requirements for grafting are relatively high. Rootstock tree species are limited, and the cultivation of rootstock also consumes a certain amount of manpower and material resources. The overall reproduction speed is slow and the cost is high

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