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Breeding and cultivating method of three-line hybrid flowering Chinese cabbage

A cultivation method and Chinese cabbage technology are applied in the field of multiplication and cultivation of three-line hybrid Chinese cabbage, which can solve the problems of low seed production yield and non-application of hybrid Chinese cabbage, so as to overcome variety mixing, reduce seed production cost, The effect of increasing the yield of seed production

Inactive Publication Date: 2017-01-11
广州市农业科学研究院
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  • Application Information

AI Technical Summary

Problems solved by technology

The application of hybrid Chinese cabbage seeds can effectively improve its disease resistance and stress resistance, and overcome the shortcomings of existing conventional Chinese cabbage. However, due to the low yield of hybrid Chinese cabbage, hybrid Chinese cabbage cannot be used very well.

Method used

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  • Breeding and cultivating method of three-line hybrid flowering Chinese cabbage

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1 "Yutian No. 2" three-line hybrid cabbage propagation and supporting cultivation method

[0030] (1) Breeding of female parent (sterile line) and maintainer line

[0031] Using Ogu-CMS, a non-heading cabbage radish male sterile material that is stable, sterile, and not controlled by light and temperature, as the female parent, and "hd08h-1" with 6 consecutive generations of stable and comprehensive traits as the male parent F1 was obtained, all of which were sterile lines, and then backcrossed with "hd08h-1" as the recurrent parent for 6 generations to obtain the GA88 sterile line as the female parent and the maintainer line "hd08h".

[0032] (2) Breeding of male parent

[0033] "Youlu 702-A" was selected for 7 generations through self-directed selection, and "Youlu 702B" was obtained as the male parent of "Yutian 2". Its petioles are short, the vegetable stalks are thick, the leaves and stalks are oily green and glossy, the curds are large, the stalk leav...

Embodiment 2

[0040] Embodiment Two "Yutian No. 2" supporting cultivation method

[0041] ① Timely sowing and raising seedlings: It can be planted in the national vegetable production areas with an ambient temperature of 15-25°C (such as late September-early December in the Guangdong plain area and March-April of the following year), and the amount of seed per mu is 100 grams. It is not suitable for sowing when it is lower than 5°C or higher than 35°C.

[0042] ② Timely transplant: Yutian No. 2 cabbage has a short growth period, 45 days from sowing to first flowering, so we must pay attention to timely transplanting. The seedling age can be transplanted at 15-18 days. And leggy.

[0043] ③Fertilizer and water management: After planting and surviving, soak the compound fertilizer or decomposed organic fertilizer in water, apply 20 kg of compound fertilizer or 200-500 kg of decomposed organic fertilizer per mu, and apply once every 5-7 days, continuously for 2 For the second time (sprouting...

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Abstract

The invention discloses a breeding and cultivating method of three-line hybrid flowering Chinese cabbage. The breeding method comprises the following steps: seeding: interplanting under an isolation condition according to the row ratio of a male parent to a female parent of 1 to 4, wherein the male parent is seeded earlier than the female parent by 5 to 7 days; pollination: in the early flowering stage, spraying a glucose solution of 1 to 200 which serves as leaf fertilizer once every 3 to 5 days for totally 2 to 3 times, releasing 1,000 to 2,000 bees into a land per mu in the full-blossom period after the leaf fertilizer is sprayed. According to the method disclosed by the invention, the seed production yield can be increased, the seed production cost of the three-line hybrid flowering Chinese cabbage is reduced, and the purity and the tidiness of the species are improved. The shortcomings of varietal complexity, low tidiness, low disease resistance and stress resistance are overcome; application and popularization of the hybrid flowering Chinese cabbage are expanded, and the flowering Chinese cabbage breeding level is increased; according to the characteristics of three-line hybrid Yutian #2 flowering Chinese cabbage, a high-quality and efficient cultivation mode is supplied for production service; the breeding level is increased, and the competitiveness is enhanced.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a method for multiplying and cultivating three-line hybrid Chinese cabbage. Background technique [0002] Flowering Chinese cabbage (flowering Chinese cabbage) is a variant of the Brassica species Brassica subspecies of the Brassica family (Cruciferae), scientific name Brassica, also known as cabbage heart, cabbage tip. Herbs annual or biennial, 30-50 cm tall, glabrous throughout; stems erect or ascending. Basal leaves are oblong or broadly ovate, 6-8 cm long, 2-3 cm wide, rounded at the top, entire, with wide midrib and prominent lateral veins; petiole white or green, 3-4.5 cm long, slightly Marginal; lower cauline leaves similar to basal leaves, broadly ovate, petioles without margins, not clasping; other cauline leaves ovate, lanceolate or narrowly oblong, all but top leaves have petioles and are not The stem is clasped, and others are similar to gr...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01G1/00
CPCA01H1/02A01H1/04A01G22/00
Inventor 黄红弟张华李光光曹健松郑岩松徐勋志李伯寿乔燕春
Owner 广州市农业科学研究院
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