Haploid breeding method for variety of Chinese cabbage

A technology of pakchoi and pakchoi, which is applied in the field of pakchoi breeding, can solve problems such as low efficiency and long breeding process, and achieve the effect of speeding up and avoiding hybrids

Inactive Publication Date: 2007-12-26
湖北鄂蔬农业科技有限公司
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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

Method used

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Embodiment Construction

[0084] In the following, the method for doubling sports of the small white menu of the present invention will be further described in detail with reference to specific embodiments. The method includes the following steps:

[0085] 1) Preparation of explants: According to different breeding goals, the preparation of explants is also different: for the selection of male lines of conventional new varieties or hybrid new varieties, select complementary breeding materials that meet the breeding goals. Bud emasculation crosses to obtain a hybrid generation, which is sown in stages, and its anthers are taken as explants after bolting and flowering. For the breeding of male sterile lines, that is, the maternal line of new hybrid varieties, select the existing male sterile maintainer line that meets the breeding goals and cross with the corresponding complementary breeding materials to strip the buds and emasculate to obtain the first hybrid. After sowing the first hybrid, self-bred to obt...

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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 present invention relates to the breeding technology of Chinese cabbage, in particular to a method for breeding small Chinese cabbage, which is used for rapid selection and breeding of new Chinese cabbage 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 selection method is to artificially peel off buds and emasculate the complementary breeding materials that meet the breeding goals to obtain F 1 Generation is the hybrid generation, and then the F 1 Carry out multiple generations of individual plant selfing in each generation, and compare the economic traits of the individual plant line materials of each generation, select excellent individual plants for the next generation of individual plant selfing, so as to select new pure Chinese cabbage that basically meets the requirements system. Although the strain selection method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H4/00
Inventor 梅时勇邱正明聂启军
Owner 湖北鄂蔬农业科技有限公司
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