Cutting seedling-raising method for golden camellia

Abstract

The invention provides a cutting seedling-raising method for golden camellia. The cutting seedling-raising method comprises the following steps: cutting semi-lignified branches, which are collected from middle and upper parts of a seed tree, grow in the current year vigorously and have full leaf buds, into one-bud and half-leaf cutting slips; sterilizing the cutting slips; mixing a plant growth regulator aqueous solution with talc powder to prepare a paste, soaking roots of the sterilized cutting slips in the paste until the roots of the cutting slips are wrapped with the paste; mixing yellow soil with coconut chaff to obtain a substrate, tiling the substrate on a cutting bed, watering the substrate well, and then cutting the cutting slips with the paste wrapped on the roots on the cutting bed, wherein the buds on the cutting slips are exposed out of the surface of the cutting bed; and setting up an arched shed on the cutting bed, sealing the arched shed with a thin film, covering the thin film with a layer of sunshade net at the same time, and avoiding watering after cutting until outplanting. The method provided by the invention is high in cutting survival rate and effectively improves the utilization rate of female parent branches.

Description

technical field [0001] The invention relates to the technical field of plant propagation, in particular to a method for growing seedlings by cuttings of camellia japonica. Background technique [0002] Camellia japonica is an evergreen shrub or small tree. It is a rare plant and a valuable ornamental plant in the world. It is known as "the giant panda in the plant kingdom" and "the queen of the tea family". Camellia japonica can not only be used as an ornamental, but also its flowers and leaves can be used to make tea and be used as medicine. It is a dual-purpose plant for medicine and food. Camellia japonica is 2-6m high, the bark is off-white, smooth, and the leaves are alternate, broadly lanceolate to oblong. In order to obtain a large amount of golden camellia seedlings, people have carried out mass propagation by various methods and methods. At present, golden camellia is mainly propagated by methods such as cuttings, layering, tissue culture and grafting. [0003] G...

AI Technical Summary

Problems solved by technology

[0003] Golden camellia is a difficult-to-reproduce variety, and its propagation cycle is long, and defects in production management (such as using red heart soil as the propagation substrate for cuttings, because red heart soil is compacted and waterlogged, during the production management process, too much water spraying will lead to The cuttings of Camellia japonica inserted in the substrate rot and die; if the amount of water sprayed is too small, the cuttings of Camellia japonica can not keep their freshness, and the seedlings will die because the leaves and branches are dry). When breeding, its survival rate is very low (only 20-30%)

[0004] As an improvement, the Chinese patent application number 201310075010.7 discloses a cutting propagation method of Camellia japonica plants. Although the survival rate of the cuttings has been improved to a certain extent, because Camellia japonica grows slowly and the branches are more precious, this method needs to collect 8- Cuttings with 10cm and 2-3 buds are a waste of female parent branches, and excessive pruning of branches will also affect the flowering of the mother plant. Therefore, it is necessary to improve the effective utilization of the female parent material in production; at the same time, the existing cutting process , the rooting agent should be soaked at the base of cuttings, and the soaking time ranges from 1.5h to 24h, which is not conducive to large-scale production