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Application of cold plasma seed treatment methods

A cold plasma and seed treatment technology, applied in the fields of seed and rhizome treatment, application, agriculture, etc., can solve the problems of excessive Cd content in the edible parts of crops, weak seedling growth, and low germination rate.

Active Publication Date: 2018-10-16
INST OF SOIL SCI CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem to be solved: the present invention aims to provide a cold plasma seed for the problems of low germination rate, poor germination uniformity, weak seedling growth, decreased yield and excessive Cd content in edible parts of crops under the stress of heavy metal cadmium. Application of treatment methods

Method used

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  • Application of cold plasma seed treatment methods

Examples

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Effect test

Embodiment 1

[0016] Hybrid rice II You 98 rice seeds were treated with cold plasma. First, the seeds were placed in a cold plasma seed treatment machine, and the seeds were treated with non-ionizing radiation for 15s at a treatment power of 80W, and the treatment medium was helium in a vacuum environment. Germination experiments were carried out on the treated seeds under cadmium stress of 1.12mg / L, 5.6mg / L and 11.2mg / L respectively, according to the national crop seed inspection regulations-germination test (GB / T 3543.4-1995). Seed germination rate was counted, and seedling height and root length were measured.

[0017] The invention can effectively promote the seed germination of the hybrid rice II You 98 under the stress of different concentrations of cadmium (Table 1). Compared with the control (CK), when the treatment power was 80W and the treatment time was 15s, the germination rate, germination index and vigor index of II You 98 seeds could be significantly increased by 4.1%-23.4%,...

Embodiment 2

[0023] Cold plasma treatment of japonica rice Nipponbare seeds with low tolerance to cadmium toxicity. First, the seeds were placed in a cold plasma seed treatment machine, and the seeds were treated with non-ionizing radiation for 15s at a treatment power of 80W, and the treatment medium was helium in a vacuum environment. The treated seeds were subjected to a germination test under 5.6mg / L cadmium stress, which was carried out with reference to the national crop seed inspection regulations-germination test (GB / T 3543.4-1995). Seed germination rate was counted, and seedling height and root length were measured.

[0024] The invention can effectively promote the seed germination and seedling growth of japonica rice Nipponbare with low tolerance to cadmium toxicity under 5.6 mg / L cadmium stress (Table 3). Compared with the control (CK), when the treatment power was 80W and the treatment time was 15s, the germination rate, germination index and vigor index of japonica rice Nipp...

Embodiment 3

[0028] Indica rice Anjana Dhan seeds, which are highly tolerant to cadmium toxicity, were subjected to cold plasma treatment. First, the seeds were placed in a cold plasma seed treatment machine, and the seeds were treated with non-ionizing radiation for 15s at a treatment power of 80W, and the treatment medium was helium in a vacuum environment. The treated seeds were subjected to a germination test under 5.6mg / L cadmium stress, which was carried out with reference to the national crop seed inspection regulations-germination test (GB / T 3543.4-1995). Seed germination rate was counted, and seedling height and root length were measured.

[0029]The present invention can effectively promote the seed germination and seedling growth of the indica rice Anjana Dhan which is highly tolerant to cadmium poisoning under 5.6 mg / L cadmium stress (Table 4). Compared with the control (CK), when the treatment power was 80W and the treatment time was 15s, the germination rate, germination ind...

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Abstract

The invention discloses application of cold plasma seed treatment methods. The application has the advantages that crop seed germination and seedling growth can be promoted under heavy metal cadmium stress, the crop yield can be increased, and the content of heavy metal in edible parts of cereal crops can be reduced; the yield can be increased by 12.4%-38.9% by means of cold plasma seed treatmentafter paddy rice grows in soil with the cadmium pollution concentration of 1.66 mg / L and is harvested, and the content of Cd in brown rice can be reduced by 4.1%-33.8%; the content of Cd in grains canbe reduced by 5.6%-23.8% by means of cold plasma seed treatment after wheat grows in soil with the cadmium pollution concentration of 0.51 mg / L and is harvested.

Description

technical field [0001] The invention belongs to the application of a cold plasma seed treatment method, and specifically relates to a cold plasma seed treatment technology, aiming at improving the germination, growth and yield of food crop seeds under heavy metal stress, and reducing the heavy metal cadmium content in edible parts. . Background technique [0002] Cadmium (Cd) is a heavy metal element with strong biological toxicity and high mobility. It enters the agricultural production system through industrial waste discharge, agricultural pesticides and Cd-containing fertilizer application. Cadmium pollution is widespread in the world. For example, the "cadmium rice incident" in Japan was caused by irrigating farmland with cadmium-contaminated river water, which caused a large amount of cadmium in the rice, which caused cadmium poisoning. According to the "National Soil Pollution Survey Bulletin" jointly issued by the Ministry of Environmental Protection and the Ministr...

Claims

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Application Information

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IPC IPC(8): A01C1/00
CPCA01C1/00
Inventor 赵玲滕应邓敏丁昌峰王兴祥邵汉良
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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