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Premature, disease-resistant and stress-resistant mini broccoli breeding method

A technology for reversing broccoli and early maturing is applied in the field of plant breeding, early maturing, disease resistance and resistance broccoli, which can solve the problems of abnormal development of interfloral organs and being affected by environmental conditions, and achieve breeding progress. Smooth, speed up the breeding process, the effect of strong stress resistance

Inactive Publication Date: 2015-12-16
ZHENJIANG SUIHAN AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cytoplasmic male sterile line is used for seed production, the sterile plant rate and sterility degree are both 100%, and the hybridization rate is 100%. However, due to environmental conditions, there will be abnormalities in the development of flower organs between years.

Method used

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  • Premature, disease-resistant and stress-resistant mini broccoli breeding method
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  • Premature, disease-resistant and stress-resistant mini broccoli breeding method

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Embodiment Construction

[0018] In this embodiment, the excellent and stable DH strain code number 08-38 cultivated by the early-growing and long-green F1 progeny of broccoli, and the excellent and stable DH strain code code 09-65 cultivated by the F1 progeny of Hong Kong Chinese kale, the excellent and stable The code name of the self-incompatible strain is 11-13-7-8-3, the code number of the excellent and stable DH strain cultivated by the Lilu F1 progeny is 10-76, and the excellent and stable self-incompatibility And the strain code is 12-15-9-3-2.

[0019] Such as figure 1 As shown, the breeding process of the present embodiment is as follows:

[0020] In the first ten days of March of the first year, use 2 different types (different maturity stages, different leaf shapes and leaf colors) broccoli breeding materials (Li Lv F1, early growing long green F1), and 1 Chinese kale breeding material (Hong Kong Chinese kale F1) were cultured with microspores suitable for microspore culture from single-n...

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Abstract

The invention discloses a premature, disease-resistant and stress-resistant mini broccoli breeding method and belongs to the technical field of plant cultivation. Flower buds, suitable for microspore culture, of broccoli and cabbage mustard breeding materials from the mid-late uninucleate stage to the early dicaryon stage are used for microspore culture, a large number of regeneration plants are created, excellent DH plants are screened out for selfing, a DH strain stable in botanical character, good in combining ability and large in pollen quantity is obtained, and hybridization first generation seeds F1 are prepared in the flowering stage through artificial emasculationare carried out to obtain; generation-adding is conducted on the F1, then good single plants with botanical characters similar to those of broccoli are selected, selfing in the bud stage is carried out to obtain F2, then generation-adding is conducted on three generations to select self-incompatible strains 11-13-7-8-3 and 12-15-9-3-2 which are excellent and stable and cultivated through continuous selfing in the bud stage, and premature, disease-resistant and stress-resistant mini broccoli is obtained through hybridization. The self-incompatible strains are used for mating, reciprocal cross plants are consistent in character, and the yield of produced seeds is increased by over 50% compared with that of sterile line seed production.

Description

technical field [0001] The invention relates to a plant breeding method, in particular to a early-maturing, disease-resistant and stress-resistant broccoli breeding method, which belongs to the technical field of plant cultivation. Background technique [0002] Broccoli has the characteristics of compact plant type, short growth period, green color, small and loose flower ball at the top, long flower stem, strong germination ability of side branches, good taste, suitable for dense planting, strong stress resistance and disease resistance. It is becoming more and more popular with growers and consumers. 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, anthocyanins and anti-cancer substances, among which the anti-cancer substances are high. It is a delicious and healthy Combined high-quality, high-grade functional green vegetables. It combines the advantages of broccoli and kale, and its appearance ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H4/00
Inventor 秦文斌戴忠良吴国平毛忠良潘跃平姚悦梅潘永飞张振超曹雪王建华陈智超
Owner ZHENJIANG SUIHAN AGRI
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