Method for breeding multi-bolting cold-resistant flowering cabbage

A cabbage heart and cold-resistant technology, which is applied in the breeding field of multi-bolting and cold-resistant cabbage hearts, can solve the problems of non-cold tolerance and low yield of cabbage heart varieties, and achieve the effects of long harvesting period, high yield and strong reproductive capacity.

Inactive Publication Date: 2015-06-10
HUNAN VEGETABLE RES INST
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current Chinese cabbage varieties are not cold-resistant, the main shoots are mainly harvested, the yield is low

Method used

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  • Method for breeding multi-bolting cold-resistant flowering cabbage

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Embodiment 1

[0025] The invention provides a breeding method for multi-bolting and cold-resistant Chinese cabbage. Red cabbage and Chinese cabbage are crossed, and then self-crossing and backcrossing are carried out to breed a variety with strong side sprouting ability, appearance and quality similar to Chinese cabbage. ; Breeding field experiments are carried out in autumn and winter in Changsha (the sowing period is preferably in September) or other similar climate areas, so as to screen for cold resistance. The steps involved are as follows:

[0026] 1) cross beetroot and Chinese cabbage to obtain F1 population;

[0027] 2) Selfing the F1 population obtained in step 1) to obtain the F2 population; the population is required to be larger than 300 strains, and it should be as large as possible under the condition of the experiment;

[0028] 3) In the F2 generation population, select a single plant with strong lateral shoot generation ability, good cold resistance, and cabbage sprout appe...

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Abstract

The invention discloses a method for breeding a multi-bolting cold-resistant flowering cabbage and belongs to the technical field of plant breeding. The method for breeding the multi-bolting cold-resistant flowering cabbage comprises the following steps: hybridizing purple flowering stalk with flowering cabbage to obtain a colony F1; selfing the obtained colony F1 to obtain a colony F2; selecting single plants consistent with breeding aims from the colony F2, and carrying out backcross on the selected single plants and the flowering cabbage; selecting single plants consistent with breeding aims in the backcross generation, and selfing the selected single plants; selecting single plants consistent with breeding aims in the selfing generation, and carrying out backcross on the selected single plants and the flowering cabbage to obtain the backcross generation; and then repeating selfing, so that the multi-bolting cold-resistant flowering cabbage is obtained. The method for breeding the multi-bolting cold-resistant flowering cabbage has the advantages that multi-bolting and cold-resistant characters of the purple flowering stalk are introduced into the flowering cabbage, the multi-bolting cold-resistant flowering cabbage variety is cultivated, and the multi-bolting cold-resistant flowering cabbage variety can grow in the Yangtze River region in autumn and winter due to the cold-resistant character; meanwhile, side flower stalk generative power is strong, side flower stalks are harvested mainly, one-time seeding and multiple harvesting are realized, a harvesting period is long, yield is high, and farming cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of plant breeding, in particular to a breeding method for multi-bolting and cold-resistant Chinese cabbage. Background technique [0002] Caixin is a vegetable widely cultivated in Guangdong, Guangxi, Southeast Asia and other regions. Its cultivation method is mostly live broadcasting, and it is harvested at one time after the main sprouts are born. Chinese cabbage can be normally cultivated in spring, summer, and early autumn in the Yangtze River Basin. However, due to the low temperature in the region in autumn and winter, the existing Chinese cabbage is not cold-resistant and has slow growth and low yield, so it is not suitable for production. Moreover, the side shoots of the existing Chinese cabbage varieties are weak in generating ability, and the main shoots can only be harvested. One time of sowing can only be harvested once. In production, multiple replanting is often required, and the cultivation c...

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Application Information

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IPC IPC(8): A01H1/02
Inventor 丁茁荑吴艺飞周晓波
Owner HUNAN VEGETABLE RES INST
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