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Method of breeding new garlic variety by X-ray irradiation

An X-ray and new variety technology, which is applied in the field of X-ray irradiation of garlic for breeding new varieties, can solve the problem of high cost of cobalt source, and achieve the effects of accelerating the breeding process, increasing the mutation rate, and improving the single genetic structure.

Inactive Publication Date: 2018-07-13
XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
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Problems solved by technology

The cobalt source that produces γ-rays is expensive and requires strict protection, while X-rays have the advantages of simple operation and easy protection; at the same time, X-rays have strong radiation functions, wide continuous energy spectrum distribution, high brightness, large flux, and polarization Well, excellent properties such as continuous adjustment (Xu Mingzhao et al., 2008) have been applied to the mutagenesis treatment of crops such as wheat (Tangzhangxiong et al., 1995) and rice (Wang Cailian et al., 2000), but X-rays have not yet been used in Garlic

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  • Method of breeding new garlic variety by X-ray irradiation

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Embodiment 1

[0015] Xuzhou white garlic was selected as the irradiation material, and the bulbs were harvested and stored for 3 months before X-ray mutagenesis treatment.

[0016] First select the same size, garlic bulbs with the characteristics of this variety, no lesion and no wound as the material for mutagenesis treatment;

[0017] After the bulbs are dried in the sun for 2 to 3 days, remove the outer skin and stem heels and divide them into petals. Remove the flaps, and select scale buds of the same size as the final irradiation material;

[0018] The dormant scale buds were irradiated by a medical linear accelerator, the field factor was 1.079, the specimen covered 1.5cm Blous, and the field size was 40×40 cm 2 , the scale buds are irradiated in a tiled manner, the radiation energy is 6M X-ray, the radiation dose is 5Gy, the dose rate is 2GY / min, (distance) SSD=100cm;

[0019] After irradiation, the scale buds were kept in a dry and cool place to be sown, and sowed according to the...

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Abstract

The invention relates to a method of breeding a new garlic variety by X-ray irradiation. The method comprises the following steps: (1) performing X-ray irradiation treatment on garlic flakes after a period of dormancy, and (2) performing variety breeding via mixed multi-generation selection after the irradiation. Garlic in the period of dormancy is subjected to the X-ray irradiation; an aberrationrate of the garlic is increased; the new garlic variety is bred by screening aberration populations; the mutation frequency of the garlic and new variety breeding efficiency can be effectively improved by the method; and the method has an important significance on the garlic breeding.

Description

technical field [0001] The invention belongs to the field of garlic breeding, in particular to a method suitable for breeding new varieties of garlic by X-ray irradiation. Background technique [0002] Garlic (Allium sativum L.) is a biennial herb of the Liliaceae Allium genus, and is an important vegetable and condiment. China is the world's largest garlic producer and exporter. In recent years, the garlic industry has continued to develop, and the garlic harvest area, garlic output and export volume have all increased rapidly. The export of garlic has promoted the increase of farmers' income and accelerated the development of the garlic industry. At present, the main varieties of garlic in production are local varieties, and the method of breeding new varieties of garlic is mainly conventional breeding, that is, using the variation of some important economic traits in the process of asexual reproduction of garlic for variety breeding. However, garlic is a vegetatively p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/06
CPCA01H1/06
Inventor 陆信娟杨峰樊继德刘灿玉赵永强杨艳李勇赵林李刚波张婷
Owner XUZHOU INST OF AGRI SCI IN JIANGSU XUHUAI DISTRICT (JIANGSU XUZHOU SWEETPOTATO CENT)
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