Haploid breeding method for variety of Chinese cabbage

Abstract

A method for culturing new variety of small Chinese cabbage by the mono-ploid culture includes such step as in vitro culture of the anther of small cabbage to obtain mono-ploid embryoid, regenerative culture, chromosomal amplification, isolated pollination to obtain a series of different genotypic pure lines, comparing them to screen excellent pure line.

Description

technical field [0001] The invention relates to a pakchoi breeding technology, in particular to a pakchoi breeding method for rapid selection of new pakchoi varieties. Background technique [0002] At present, in the field of pakchoi breeding, the method of strain screening is mainly used to select new pure lines of pakchoi. The strain screening method is to artificially peel and emasculate the complementary breeding materials that meet the breeding objectives to obtain F 1 The first generation is the hybrid generation, and then the F 1 Multi-generation single-plant selfing is carried out, and the economic characteristics of the single-line materials of each generation are compared, and excellent single plants are screened out for the next generation of single-plant selfing, so as to select and breed a new pure Chinese cabbage that basically meets the requirements. Tie. Although the strain screening method can select conventional new varieties and hybr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the long and low efficiency of the existing pakchoi breeding methods, and provide a method for rapidly selecting and breeding new varieties of pakchoi, that is, the method of pakchoi multiplication breeding