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Method for overcoming topophysis in vegetative propagation of gingkoes

A technology of asexual reproduction and effects, applied in botany equipment and methods, applications, gardening, etc., can solve problems such as poor stratification, inconvenient cultivation of high-yield tree shapes, and reduce the reproductive rate of improved mother trees, so as to achieve the effect of increasing the reproductive rate

Active Publication Date: 2013-07-03
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology

Although the position effect has the advantages of promoting flower bud differentiation, advancing the fruiting period, and the oblique and arc-shaped growth of branches have laid a good foundation for the production of ginkgo bonsai, it has great disadvantages: (1) It reduces the reproduction of the improved mother tree (2) From the perspective of timber and greening, the position effect often makes the trunk of the propagated good species bend and have poor layering, and cannot reproduce the excellent growth traits of the mother tree; (3) From the perspective of fruit tree cultivation, oblique growth is not convenient for high yield Tree-shaped cultivation, and not conducive to close planting

Method used

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  • Method for overcoming topophysis in vegetative propagation of gingkoes
  • Method for overcoming topophysis in vegetative propagation of gingkoes
  • Method for overcoming topophysis in vegetative propagation of gingkoes

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Embodiment 1

[0024] This research was carried out in Tancheng Ginkgo breeding nursery from 1993 to 1995, which belongs to the plastic small arched seedbed in the cuttings in the protected area. Select branches with strong growth, full buds, and no pests and diseases in the upper and middle parts of the canopy as cuttings. The cuttings were cultivated with ABT rooting powder treatment and automatic intermittent spraying. Seedling management is the same as conventional nursery. The seedlings are repeatedly stubbed to the lowest part, and stimulated to produce a large number of vertical regenerated shoots, that is, re-drying; the mother stem is stubbed in the spring of the second year after transplantation to promote the emergence of definite or adventitious buds. After that, by the third year the position effect has reversed. The implementation steps of the Ginkgo cutting and stubble rejuvenation method are as follows:

[0025] 1. Cutting preparation

[0026] Tools for preparing cuttings...

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Abstract

The invention discloses a method for overcoming topophysis in vegetative propagation of gingkoes, which includes the following steps: taking a healthy and full-sprouted branch being without diseases and insect pests and growing at the middle upper part of a crown on the sunny side as a cutting slip; and adopting the cuttage and stumping method to solve the problem of topophysis during the vegetative propagation of gingkoes. Multiple branches generated after stumping can be directly adopted for cuttage or propagation by grafting, and the main branch can grow vertically. According to the method, the cost is low, the seedling forming speed is high, the rate of survival is high; and the problem of quick breeding of good seed sources, pedigree, clone and excellent single plant of gingkoes can be solved.

Description

technical field [0001] The invention belongs to the field of vegetative propagation in the cultivation of woody plant seedlings, in particular to a technical process for overcoming the position effect of vegetative propagation of Ginkgo biloba. Background technique [0002] Ginkgo biloba is the oldest world-famous living fossil and relict plant left over from the Quaternary glacial movement, among the existing seed plants. It is a special product of my country and is a national second-class protected tree species. The whole body of Ginkgo is a "treasure", which integrates edible, medicinal, economic, ecological and cultural values. It is the most typical endemic multi-purpose tree species. China is not only the origin of the cultivation of ginkgo, the ancient center of introduction and domestication, but also the country with the most abundant ginkgo resources and species diversity, and the largest production and export volume in the world. It has been cultivated in more th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
Inventor 邢世岩王聪聪任娟霞
Owner SHANDONG AGRICULTURAL UNIVERSITY
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