Method for culturing cabbage type rape with long ornamental period by collards

A technology of Brassica napus and kale, which is applied to the field of cultivating Brassica napus with a long ornamental period by using kale, can solve the problems of prolonging the viewing period of ornamental rapeseed, failing to transfer genes related to kale leaf color, and speeding up backcrossing. The effect of the breeding process

Inactive Publication Date: 2017-02-15
CHENGDU ACAD OF AGRI & FORESTRY SCI
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for cultivating Brassica napus with a long ornamental period by using kale, aiming to solve the problem of the inability to

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  • Method for culturing cabbage type rape with long ornamental period by collards

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Embodiment 1

[0029] 1. Use the conventional rape varieties that are mainly promoted in production to hybridize with various kale (light yellow, yellow and white, white and green stripes, rose red, purple red and other varieties).

[0030] 2. F obtained by distant hybridization 0 After the seeds are treated with 0.1% mercuric chloride and sterilized, they are inoculated on a medium containing 20 mg / L colchicine for double culture, and after seedlings take root, they are transferred to the field.

[0031] 3. If hybrid F 1 Contains the target traits, then it can continue to carry out backcross breeding with Brassica napus; if F 1 loses the target trait, then F 1 Single plant bagging selfing, see F 2 group separation. If F 2 If a single plant with the target trait is isolated from the population, the single plant will be used to continue backcrossing with Brassica napus; if no target trait appears, the trait will be abandoned.

[0032] 4. Always focus on the target traits in the backcros...

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Abstract

The invention discloses a method for culturing cabbage type rape with long ornamental period by collard. The method comprises steps of hybridizing a regular oilseed rape type with various collards; performing double cultivation on a culture base containing 20 mg/L colchicine at a F0 seed obtained through distant hybridization; after seedling, rooting and transplanting to a big farmland; if the hybridized F1 contains target characteristics, continuing the backcross transformation with cabbage type rape; after the backcross descendant reaches the characteritics of the cabbage type rape, quickly and stably performing microspore culture when the fertility is normal; hybridizing various leaf colour materials with successful transformation with cabbage type rape, selecting a new type of cabbage type rape with different leaf and flower colors; matching and planting new types of various cabbage type rape with different leaf and flower colors to meet people's demand of enjoying leaves in winter and flowers in spring. Through distant hybridization, related gene of collard leaf color is transferred to the cabbage type rape; meanwhile, through the combination of leaf color and flower color, the ornamental period of the ornamental oilseed rape is prolonged.

Description

technical field [0001] The invention belongs to the technical field of crop breeding, and in particular relates to a method for cultivating Brassica napus with long viewing period by using kale. Background technique [0002] Brassica napus is the type of rape with the largest cultivation area in my country and even in the world. It has the advantages of high yield, disease resistance, strong stress resistance, and wide adaptability, and occupies a very important position in production. However, due to the short cultivation history of Brassica napus and the short origin of Brassica napus itself as an allo-ampiploid species, the genetic background of Brassica napus is narrower than that of other Brassica species, so through various breeding Ways to broaden the genetic base of Brassica napus, expand its germplasm resources, and create new Brassica napus are very important. Most of the previous studies focused on introducing favorable genes into the breeding materials of Brassi...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01H1/08
CPCA01H1/02A01H1/04A01H1/08
Inventor 李云付绍红杨进王继胜邹琼陶兰荣康泽明唐荣
Owner CHENGDU ACAD OF AGRI & FORESTRY SCI
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