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: 2006-01-25
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

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Embodiment Construction

[0084] Below in conjunction with specific embodiment, the method for ploidy breeding of P. chinensis described in the present invention is further described in detail, and the method comprises the following steps:

[0085] 1) Preparation of explants: According to different breeding objectives, the preparation of explants is also different: for conventional new varieties or new hybrid varieties male line selection, select complementary breeding materials that meet the breeding objectives The buds are emasculated and crossed to obtain the first generation of hybrids, and the first generation of hybrids is sown in stages, and the anthers are taken as explants after the bolting and flowering. For the breeding of male sterile lines, that is, the female parent lines of new hybrid varieties, the existing male sterile maintainer lines that meet the breeding objectives are selected and crossed with corresponding complementary breeding materials to obtain the first generation of hybrids....

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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 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
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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