Method for fast asexual propagation by cottage at root and sowing roots of shinyleaf yellowhorn

Abstract

The invention belongs to the technical field of fast propagation of plants, comprising the following steps of: (1) building a sterilized seedling bed on a selected propagation place, laying sterilized substrate in the seedling bed with sterilized cutting substrate of turfy soil, perlite and vermiculite concrete; (2) selecting healthy 1-2 years of seedlings with no damage by disease and insect or young trees as seed tree for collecting roots, digging a semicircular groove with a distance of 0.5m from the trunk, excavating the side root with the diameter of 1-3cm as propagation material and trimming the side root into root sections of 3-5cm; (3) soaking the trimmed root sections in carbendazim solution for sterilizing, adopting IBA+NAA solution as hormone, using ABT rooting powder solution to soak the base part for inducing the root; (4) inserting the root in the substrate of the seedling bed to lead the top end to be lower than the ground slightly and to be level with the ground after the soil is coated; (5) after cottage, covering the seedling bed with mulching films, sealing the periphery of the seedling bed, building tunnels on furrows and building overhead shade nets on the tunnels; and (6) after cottage, managing, transplanting and preventing damage by disease and insect.

Description

1. Technical field [0001] The invention belongs to the technical field of rapid plant propagation, and in particular relates to a method for rapid vegetative propagation of root segment cuttings and sowing roots of sorbiflora sorbifolium. 2. Background technology [0002] Xanthoceras sorbifolia Bunge., also known as Papaya, Wendengge, and Sengdeng Maodao, belongs to Sapindaceae (Sapindaceae), Xanthoceras (Xanthoceras), is a single species, deciduous tree or shrub, originally Produced in northern my country, it is distributed in the north of Qinling Mountains and Huaihe River, south of Inner Mongolia, from Liaoning in the east, to Qinghai in the west, to Henan and northern Jiangsu in the south. The comprehensive utilization value of X. sorbifolium is high, and it can grow everywhere except in saline-alkali land or waterlogged depressions. It is a pioneer tree species for greening barren hills; it has a well-developed root system and strong root sprouting ability, and is an exc...

AI Technical Summary

Problems solved by technology

There are following problems in this kind of breeding method: (1) the genetic variation of seed propagation is large, which is unfavorable for the maintenance of good traits of the female parent, such as the seedlings of some good clones or varieties will undergo genetic differentiation, and cannot fully inherit the traits of the female parent. High yield, drought resistance and other traits

(2) The seed propagation steps are cumbersome and require high technology. For example, the seeds need to be stored in sand and soaked for the whole winter before planting.

(3) Seed propagation is limited by the sowing season, the propagation speed is slow and the cycle is long

[0006] The above-mentioned research results have made useful explorations on the cutting propagation technology of sorbifolium sorbifolium, especially the root cutting technology, but there are the following defects: (1) the specification of root cuttings is limited to 10-15cm in length and 0.5-2.0cm in thickness at the head , there is no technical solution for the cutting of root cuttings below 10cm, which limits the reproduction coefficient and speed, and has application limitations in production and scientific research

For example, some excellent strains have few mother trees, or even only one tree. The size of root cuttings of 10cm will limit their reproduction coefficient, and the maximum benefit cannot be achieved in production.

(2) The shorter and thinner the root section, the more difficult it is to cut. The above research has not broken through the technical bottleneck of cutting with thin root section below 10cm

(3) No detailed description of management measures after cutting