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Method of utilizing cabbage CMS and DH lines to selectively breed early-ripening new variety

A new variety of cabbage technology, applied in the field of crop genetics and breeding, can solve the problems of high genetic heterozygosity, asynchronous harvesting of cabbage, and lack of breeding resources for cracking ball tolerance.

Inactive Publication Date: 2017-05-10
NORTHWEST A & F UNIV
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Problems solved by technology

The easy splitting of early-maturing varieties of spring cabbage seriously hinders the development of the cabbage industry and the supply period of the fresh vegetable market, and the inconsistency of the cabbage among the cabbage plants can easily lead to asynchronous harvesting of cabbage in the same field and affect the planting efficiency per unit area ; Analysis of the reasons is mainly due to the lack of breeding resources for cracking ball resistance and the high degree of gene heterozygosity of the inbred lines selected by traditional artificial multi-generation selfing

Method used

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  • Method of utilizing cabbage CMS and DH lines to selectively breed early-ripening new variety
  • Method of utilizing cabbage CMS and DH lines to selectively breed early-ripening new variety
  • Method of utilizing cabbage CMS and DH lines to selectively breed early-ripening new variety

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Embodiment 1

[0022] 1. Source of materials

[0023] 1.1 Breeding of female germplasm material DH08-GW100M3CMS

[0024] The female parent DH08-GW100M3CMS cytoplasmic male sterile line was obtained by crossing the cabbage Ogura cytoplasmic male sterile line with the maintainer line DH08-GW100 in 2008, and then bred through 5 generations of backcrossing; the female parent line has stable traits and is sterile Thorough sexuality, normal flowering, well-developed nectaries, degenerated stamens, normal pistils, strong plant growth, no yellowing at low temperature, no pollen grains, normal temperature of plants and flower organs except for sterility; precocious maturity, from planting to harvest 58 Sky; round leaf shape, central column 5.6cm, compactness 0.65, outer leaves yellow-green, medium wax powder, spring open field cultivation resistance to virus disease and black rot, dry heartburn, resistance to cracking bulbs, strong winter resistance, combining ability high. The branching of the pla...

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Abstract

The invention discloses a method of utilizing cabbage CMS and DH lines to selectively breed early-ripening new variety. The method includes following steps: selecting cabbage cytoplasm male sterile line DH08-GW100M3CMS as a female parent and DH line DH12-3-M2 as a male parent for hybridization to breed a DH08-GW100M3CMSxDH12-3-M2 combination which is named as a qin'gan 658 variety. Variety comparison experiments, variety area experiments and production demonstration of the variety in Yang Ling, Xi'an and Baoji Taibai which are major vegetable cultivation areas in Shanxi province show that the variety is remarkable in hybrid vigor, excellent in comprehensive economic character, resistant to head bursting, high in quality, disease-resistant, outstanding in yielding ability, high in adaptability and stable in yield increase advantage, and yield is increased by 10.2-14.3% when compared with that of a cabbage variety 8398.

Description

technical field [0001] The invention belongs to the subject of crop genetics and breeding in agricultural science and technology, and specifically relates to a method for breeding early-maturing new varieties of cabbage CMS and DH lines. Background technique [0002] Cabbage is one of the main types of vegetables in my country. It is rich in nutrients and anti-cancer substances, and plays an important role in promoting human health and improving people's living standards. Spring cabbage occupies almost half of the cabbage cultivation area in my country, and it is the main variety of flower and color supplied by spring vegetables; the cultivated varieties of spring cabbage are mainly cultivated with early-maturing varieties. The easy splitting of early-maturing varieties of spring cabbage seriously hinders the development of the cabbage industry and the supply period of the fresh vegetable market, and the inconsistency of the cabbage among the cabbage plants can easily lead t...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 张恩慧许忠民程永安杨安平赵利民马青山王改改李楠武习习
Owner NORTHWEST A & F UNIV
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