Davidia involucrata var vilmoriniana cutting propagation method

Abstract

Provided is a davidia involucrata var vilmoriniana cutting propagation method. Firstly, davidia involucrata var vilmoriniana cuttings are pre-cultured, a plant growth regulator having certain proportion and concentration is utilized to soak cutting cuts, then the cuttings are air-dried a little, the cuttings are vertically stacked in a shady and ventilated environment with the humidity not lower than 90% when no water drops from the cuttings to be used, part of cuts of the cuttings whiten after 20 days, part of cuts root and begin to germinate and are planted in a seedling bed mixed with pineneedle soil and peat soil, water and fertilizer management is enhanced, and seedlings can be lifted and transplanted after leaves fall in autumn. The davidia involucrata var vilmoriniana breeding speed can be improved, a seedling raising period can be shortened, the seedling quality can be improved, quick large-scale cultivation is achieved, and good economic, social and ecological benefits are produced through landscaping.

Description

technical field [0001] The invention relates to a method for cutting and propagating Davidia glabrata, belonging to the field of biotechnology. Background technique [0002] Davidia glabrata ( Davidia involucrata Baill. var. vilmoriniana ) deciduous tree, a single-family genus unique to my country, there are two species, one is Davidia involucrata, the other is Davidia glabrata, the two are similar, the difference lies in whether the leaves are hairy or not. It is a relict plant left by the Cenozoic Tertiary period 10 million years ago. Affected by the Quaternary glacial period, the Davidia involucrata populations in most areas have been extinct one after another, and now they are only scattered in Sichuan, Guizhou, Hubei and other places in my country. , has been included in the "Chinese Plant Red Book" and "China Rare and Endangered Plant List", and has been listed as a national first-level key protected wild plant. [0003] The flowers and branches of Davidia glabrata ar...

AI Technical Summary

Problems solved by technology

After reviewing the literature, relevant scientific researchers have carried out research on propagation techniques such as cuttings, tissue culture, and high-branch layering on Davidia involucrata, and have achieved corresponding results. However, there has been no report on the propagation of Davidia glabrata using pre-cultivation combined with cuttings.