Method for cutting propagation of cinnamomum septentrionale alkali-resistant improved variety

Abstract

The invention discloses a method for cutting propagation of cinnamomum septentrionale alkali-resistant improved variety. The method comprises the following steps: constructing a cutting pool, and disinfecting a cutting substrate of the cutting pool; collecting one-year-old thick and strong branches from a cinnamomum septentrionale alkali-resistant improved variety tree, keeping humidity of collected branches, before scion making and cutting, carrying out 10-second quick dipping treatment on 0-4cm base parts of the cutting slips by using a mixed solution of 2000ppm naphthylacetic acid and 500ppm 2,4-dichlorophenoxyacetic acid, taking out and airing the cutting slips until no water drips from the surfaces, culturing the cutting slips in the cutting pool until rooting and seedling formation are finished, and spraying a 800-time potassium permanganate solution. Foliar topdressing is carried out after rooting and leafing of the cutting slips, 0.2% of urea is sprayed 80 days after cuttage, and regular topdressing management is carried out. According to the method, base parts of the cuttings are trimmed before the cuttings are soaked, rapid rooting of the cuttings can be promoted, so thatthe rooting time is remarkably shortened, the seedling forming time is further shortened, the 2,4-dichlorophenoxyacetic acid and the naphthylacetic acid promote rooting and propagation of the cinnamomum septentrionale alkali-resistant improved variety cuttings through the allelochemicity effect, and rooting of the cuttings is stimulated.

Description

technical field [0001] The invention relates to the technical field of plant vegetative propagation, in particular to a method for cutting propagation of silverwood alkali-resistant fine varieties. Background technique [0002] Silverwood (Cinnamomum septentrionale) is a tree species of the genus Cinnamomum lauraceae. Silverwood has a broad application prospect in garden viewing. There are many domestic research reports on its domestication and cultivation. In terms of the physiology of silverwood, Huangshan College has studied silverwood photosynthesis, Several physiological indicators of water were measured and analyzed, and it was believed that the light response curve of silverwood was basically consistent with the trend of daily changes in light intensity and photosynthetic rate; from the light saturation point, silverwood was a positive tree species, but the light compensation point of this tree species was relatively low , indicating that the tree species has a certai...

AI Technical Summary

Problems solved by technology

[0003] In recent years, with the continuous increase of market demand, the collection of wild resources has gradually increased. However, the self-propagation time of silverwood alkali-resistant varieties in the wild is relatively long, which has led to the depletion of silverwood alkali-resistant varieties. Therefore, introduction and cultivation, artificial Breeding will become a new way to effectively utilize the alkali-resistant improved varieties of silverwood. At present, there are no research reports on the cultivation and propagation of improved alkali-resistant silverwood varieties. Therefore, a method for cutting propagation of improved alkali-resistant silverwood varieties is needed.