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Breeding method of disease-resistant loose type broccoli

A broccoli and loose technology, applied in the field of plant cultivation, can solve the problems of low seed production yield, long time for seed production, large manpower and material resources, etc., and achieve long harvest period, high commerciality and strong disease resistance Effect

Inactive Publication Date: 2017-01-11
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Loose broccoli has strong heterosis. The self-incompatibility line currently used takes a long time to reproduce and produce seeds, which requires a lot of manpower and material resources, and the yield of seed production is not high.

Method used

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  • Breeding method of disease-resistant loose type broccoli
  • Breeding method of disease-resistant loose type broccoli
  • Breeding method of disease-resistant loose type broccoli

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The fine and stable DH strain code number 0638 cultivated by broccoli (early long green × Hong Kong Chinese kale) F2 and (li green × Hong Kong Chinese kale) F2 in this example is 0638, and the excellent and stable cytoplasm The code name of the male sterile line is CMS039 (provided by Zhenjiang Ruifan Agronomy Co., Ltd.).

[0023] The breeding method of disease-resistant loose type broccoli comprises the following steps:

[0024] In the first ten days of March of the first year, select broccoli breeding materials early-growing Jiulu and kale breeding materials Hong Kong Zhonghua kale, broccoli breeding materials Lilu and kale breeding materials Hong Kong Zhonghua kale, and select single plant flowering stage to emasculate and peel buds 80 F1 seeds of (Zaoshengjiulu×Hong Kong Chinese kale) and 122 F1 seeds of (Lilu×Hong Kong Chinese kale) were obtained by crossing.

[0025] Sow in autumn, select a single plant in the spring of the second year to self-cross at the flower...

Embodiment 2

[0037] Ruisai 45 in Example 1 was compared with its parent and another broccoli variety Luxiu (CK), and the results are shown in the table below.

[0038] Table 1 Biological characters of Ruisai 45 and its parents

[0039]

[0040] Table 2 Comparison of traits between Ruitai 45 (cytoplasmic male sterile line) and Lvxiu (cytoplasmic male sterile line)

[0041]

[0042] Table 3 Biological characters of Ruisai 45 and Luxiu

[0043]

[0044] Table 4 The disease resistance of Ruitai 45 and Luxiu

[0045]

[0046] Conclusion: Compared with the parents 0638 and CMS039, the new variety Ruitai 45 has better biological shape. The new variety Ruitai 45 matured 2 days earlier than Lvxiu (CK), harvested 16 days longer, and yielded 2861.5kg / 667m 2 , compared with Luxiu (CK) 2395.8kg / 667m 2 Yield increased by 19.4%, anti-sclerotinia, strong black rot resistance, crisp and sweet taste, strong germination ability of side shoots, long harvest period, and excellent comprehensive ag...

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Abstract

The invention discloses a breeding method of disease-resistant loose type broccoli. The breeding method of the disease-resistant loose type broccoli comprises the following steps: selecting single plants of a broccoli breeding material (early broccoli and cabbage) and a cabbage mustard breeding material (Hong Kong Zhonghua cabbage mustard) in a flowering stage, stripping buds, castrating and hybridizing to obtain F1, and selecting single plants and selfing to obtain (early broccoli * Hong Kong Zhonghua cabbage mustard) F2 and (cabbage * Hong Kong Zhonghua cabbage mustard) F2; selecting target plants and cultivating the target plants in the spring of the next year to obtain a haploid material, doubling to obtain a DH plant group, screening the DH plants according with the target characters and selfing to obtain a DH strain; taking the obtained DH strain as a male parent and taking a male sterile line with stable inheritable characters as a female parent; performing trial-matching hybridized combination, and screening the disease-resistant loose type broccoli through field observation, authentication, community evaluation and comparison and production tests. The sterile plant rate and the sterility degree are 100% and the hybridizing rate is 100%; compared with selfing incompatibility reproduction method, the method has the advantages that the labor force is saved by 50% or higher and the cost is lower.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation and relates to a breeding method of disease-resistant loose broccoli. Background technique [0002] Loose broccoli has the characteristics of compact plant type, short growth period, green color, small and loose top curd, long flower stem, strong germination of side branches, good taste, suitable for dense planting, strong stress resistance and disease resistance. Therefore, it is more and more popular with growers and consumers. Loose type broccoli is eaten with the fat and tender small flower buds and stems at the top. It is rich in vitamins A, B, C, E, protein, anthocyanin and anticancer substances, among which the anticancer substances are high. It is a delicious and healthy food. A perfect combination of high-quality, high-grade functional green vegetables. It combines the advantages of broccoli and kale, and its appearance and flavor are far superior to firm broccoli or kale. At...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 秦文斌
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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