Lycium hard-branch cuttage seedling raising method through hotbed root promotion and hormone enhancement

Abstract

The invention relates to a Lycium hard-branch cuttage seedling raising method through hotbed root promotion and hormone enhancement. The method is characterized by comprising the steps: collecting cuttings, treating base parts, performing hotbed root promotion, applying a plant hormone brassinolide to cutting trenches, putting seedling in the cutting trenches, performing field management and the like. The seedling rate of Lycium hard-branch cuttage reaches 75%-88%, the expanding propagation efficiency of improved varieties of Lycium is improved, and the cost of seedling raising is reduced.

Description

technical field [0001] The invention relates to a method for raising seedlings of agricultural crops, in particular to a method for raising seedlings by root-stimulating hormone in a wolfberry hotbed by strengthening hardwood cuttings. Background technique [0002] Hard branch cutting is a conventional seedling raising method for cultivating plant branch sections (cuttings) into new plants. It belongs to asexual propagation and can maintain the germplasm characteristics of the propagation materials. It is widely used in the breeding of wolfberry seedlings. [0003] The main measures of the traditional wolfberry hardwood cutting seedling raising method include: in late March, before the germination of wolfberry, collect annual fruiting branches with a diameter of 0.5-1.0 cm, cut them into 15 cm long cuttings, and according to the cutting plant morphology, the top is at the top, With the bottom end down, about 100 cuttings are bundled into a bundle, and the bundled cuttings ar...

AI Technical Summary

Problems solved by technology

The main reason for this is that the developmental process of cutting buds and roots is unbalanced: when the branches of Lycium barbarum are cut into cuttings, the cutting buds have a complete structure and have developed to a certain extent, while the root primordia of cuttings are still in a state of diapause ; After field cuttings are covered with film, the average temperature at the top of the cuttings is higher than that at the bottom, and the growth of buds is faster than the formation of roots, so that the nutrients and water stored in the cuttings are consumed by the growth of young shoots, affecting the formation and growth of roots. which in turn affects the emergence of cuttings and seedlings

[0004] Aiming at the problem of low seedling growth rate of traditional goji berry hardwood cutting seedling raising method, Baiyin Agricultural Technology Service Center proposed "a kind of goji berry seedling raising method" (ZL 201410343923.7). With the growth and development of roots, the seedling rate of cuttings can reach 60%-83%, which solves the problem of low seedling rate of traditional Chinese wolfberry hard branch cutting seedlings

At the same time, it also shows the technical defect that there is a large difference in the seedling rate of wolfberry cuttings in different years: during the period from field cutting to seedling release, if it is a rainy year and the temperature is low, the overall seedling rate of cuttings will be low. It can be as low as 60%; if it is a year with many sunny days and high temperature, the overall rate of cutting seedlings will be high, which can be as high as 83%.

This shows that the low temperature weather from field cutting to seedling release is the main factor causing the low seedling rate of Lycium barbarum cuttings treated with hotbed root promotion treatment