Method for seed selection of orange colored cauliflower
A technology for cauliflower and orange is applied in the field of cauliflower heterosis utilization, which can solve the problems of difficult to achieve seed purity, insufficient attention to flavor and nutritional quality, and high cost of seed production, and achieves high nutritional and health care value, simple and convenient breeding methods and reduced costs. Effect
Inactive Publication Date: 2008-12-31
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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However, domestic cauliflower breeding research started relatively late, and there is a certain gap in terms of research level and methods compared with other vegetable breeding. At present, domestic cauliflower breeding is still dominated by conventional breeding, and the use of heterosis is mainly based on self-fertilization. The production of a generation of hybrids by affinity lines and artificial pollination not only has high seed production costs, but also makes it difficult for the purity of seeds to meet domestic and foreign standards; in terms of breeding goals, more emphasis is placed on the selection of high-yield, disease resistance, and appearance. Insufficient attention to factors such as flavor and nutritional quality
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[0020] 1. Breeding process
[0021] 1. In 1993, 60 cauliflower germplasm resources were imported from abroad. After field observation and identification, it was found that one material had an upright plant shape, longer petiole, lanceolate leaves, more wax powder on the leaf surface, and orange growth points. After balling, the curd organ is small, only 200-300 grams, and the ball is not tight, it is in a loose state, and the commodity is poor. The whole curd and the pith of the main stem are orange. In that year, a better individual plant was selected for selfing and reserved for seedlings, and the first selfing generation was obtained.
[0022] 2. The six-generation inbred line was purified by single-seed transmission, and an orange cauliflower inbred line 9304 was obtained, which was homozygous and genetically stable.
[0023] 3. Two cauliflower cytoplasmic male sterile lines, CMS92060 and CMS9330, were screened and obtained through six consecutive generations of backcross...
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A method for selectively breeding orange cauliflower containing the health-care beta-carrotene includes such steps as multi-generation selfing and purifying to obtain the selfing line of orange cauliflower, crossing between the green cauliflower and white one, continuous backcrossing by 6 generations to obtain male sterility line of white cauliflower, using it to cross with said selfing line of orange cauliflower to obtain crossed generation F1, repeated discriminations and screenings several times, and measuring the content of beta-carrotene to obtain excellent hybrid varieties Jinyu-60 and Jinyu-80.
Description
technical field [0001] The invention relates to the field of utilization of cauliflower heterosis. Background technique [0002] At present, cauliflower is native to the Mediterranean coast. Through long-term cultivation practice and artificial selection, my country has bred many excellent cultivars and has become one of the second origins. Because of its delicious flavor, it is deeply loved by consumers, and it has developed from a traditional "fine vegetable" to one of the main vegetable crops in my country. However, domestic cauliflower breeding research started relatively late, and there is a certain gap in terms of research level and methods compared with other vegetable breeding. At present, domestic cauliflower breeding is still dominated by conventional breeding, and the use of heterosis is mainly based on self-fertilization. The production of a generation of hybrids by affinity lines and artificial pollination not only has high seed production costs, but also makes...
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IPC IPC(8): A01H1/02
Inventor 简元才丁云花
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES