Chemical mutation breeding method for bougainvillea

Abstract

The invention discloses a chemical mutation breeding method for bougainvillea, and relates to the field of the vegetative propagation and chemical mutation breeding of xylophyta and vines. The method treats cottage pieces of bougainvillea with sodium azide (NaN3), adopts continuous cottage propagation to create a time and a space which are good for growth of leaf color mutants, and obtains new lines with stable heredity and ornamental value through generation selection, thereby achieving the purpose of chemical mutation breeding. By adopting the technical scheme in the invention, large quantities of female parent materials can be treated in one step; the base number of variants is relatively increases greatly; the mutation frequency is increased; the treatment cost is relatively low; and the breeding period can be shorten effectively. By utilizing the continuous cottage propagation manner, the growth of leaf color mutants is ensured to be competitive, which is helpful for overcoming the chimera formation, thereby obtaining stable and uniform variants. The chemical mutation breeding method can obtain high-frequency mutation and a wide spectrum of variation, and is helpful for the variety improvement of bougainvillea.

Description

technical field [0001] The invention relates to the field of horticultural wood and vine plant breeding, in particular to the field of chemical mutation breeding of rhododendron bougainvillea. Background technique [0002] Bougainvillea spp. is a plant of the genus Bougainvillea (Nyetaginaceae), also known as Baojin, Bougainvillea, Bougainvillea, Bougainvillea, etc. It is native to tropical America and was introduced to Europe in the 19th century. Japan spread to Southeast Asian countries. Since the 1950s, a large number of plants have been introduced in southern my country. Rhododendron bougainvillea has become one of the main varieties of greening in many large cities in southern China because of its variety of bract colors and is an important garden ornamental plant. . [0003] Mutation breeding technology has a unique role in the improvement of ornamental plant varieties. It is a useful supplement to the lack of breeding methods. It can induce gene mutations and produce...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problems of few breeding approaches and low breeding efficiency in the conventional breeding of Bougainvillea, the present invention provides a simple and efficient chemical mutation breeding method

The present invention has the obvious advantages of low processing cost, simple and easy operation and high mutation frequency.

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