Normal bud proliferation method of gingko ornamental varieties

Abstract

The invention discloses a normal bud proliferation method of gingko ornamental varieties. Normal bud proliferation is performed on excellent gingko varieties by adopting a tissue culture method in the invention, so that the reproduction rate of the excellent gingko varieties is increased and the production requirements can be met. In the invention, by adopting the feature that the axillary bud of gingko is liable to germinate, a tender stem segment with an axillary bud is used as an explant, the axillary bud is promoted to germinate by the tissue culture method, so as to proliferate the normal buds of the excellent gingko varieties, keep the excellent properties of the female patient and provide a large amount of effective tender branches with certain lengths, thicknesses and degrees of lignifications to provide materials for microbody cuttings. The method is used for proliferating the normal buds of gingko, and is simple and feasible to operate.

Description

technical field [0001] The invention belongs to the technical field of tree growth, development and reproduction, in particular to a bud-setting and multiplication method for ornamental ginkgo varieties. Background technique [0002] Ginkgo biloba L. is a relic plant of Quaternary glaciers, and a rare tree species with excellent leaves and fruits. As the largest ginkgo country in the world, China has more than 90% of the world's ginkgo germplasm resources. The cultivation history in my country can be verified for thousands of years, and it has high economic, ecological and cultural values. Ornamental ginkgo varieties have more potential for development because of their excellent genetic traits. At present, the cultivation methods of ginkgo seedlings mainly include sowing, cutting, grafting, tissue culture and other methods, and these methods mainly have the following outstanding problems in actual production: (1) when sowing and raising seedlings, the offspring cannot stabl...

AI Technical Summary

Problems solved by technology

At present, the cultivation methods of ginkgo seedlings mainly include sowing, cutting, grafting, tissue culture and other methods, and these methods mainly have the following outstanding problems in actual production: (1) when sowing and raising seedlings, the offspring cannot stably inherit the excellent traits of the female parent ; Cutting propagation and grafting propagation are relatively stable and rapid propagation methods, but position effects often appear after cuttings or grafting

(3) The propagation method of tissue culture has the characteristics of high genetic stability and fast propagation speed, but Ginkgo biloba, as an ancient relic plant, has relatively primitive genetic characteristics, tissue culture differentiation is very difficult, slow growth rate, and low reproduction coefficient

Also do not see the report of Ginkgo fine-bred fixed bud multiplication method at present, the present invention proposes under such technical background