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Application of polysaccharides from wild chrysanthemum as a disease resistance elicitor in agriculture

A technology of wild chrysanthemum polysaccharide and elicitor, which is applied in the fields of application, animal husbandry, and chemicals for biological control, etc., to achieve the effect of promoting strong seedlings, obvious effect and broad application space.

Active Publication Date: 2018-05-29
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the research on polysaccharides from wild chrysanthemums, there is no report that it can be used as a plant resistance elicitor to prevent and control plant soil-borne diseases.

Method used

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  • Application of polysaccharides from wild chrysanthemum as a disease resistance elicitor in agriculture
  • Application of polysaccharides from wild chrysanthemum as a disease resistance elicitor in agriculture
  • Application of polysaccharides from wild chrysanthemum as a disease resistance elicitor in agriculture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] Embodiment 1: the extraction method of wild chrysanthemum polysaccharide

[0115] (1) Gather the chrysanthemum stem and dry it in an oven, pulverize it, pass through a 100-mesh sieve, and take 1kg for subsequent use;

[0116] (2) Add sherwood oil of 6-8 times the volume of the chrysanthemum powder to the above-mentioned wild chrysanthemum powder, reflux 1-2 times, each time for 1-2 hours, take out, filter, and heat the filter residue in a water bath to evaporate the remaining petroleum ether. Obtain the decolorized wild chrysanthemum powder;

[0117] (3) Add the pure water of 18-20 times the volume of the wild chrysanthemum powder to the decolorized wild chrysanthemum powder, decoct 2-3 times, each 2-3 hours, take the juice and remove the residue, combine the filtrate, filter, Obtain the aqueous extract solution of wild chrysanthemum;

[0118] (4) concentrating the chrysanthemum aqueous extract solution under reduced pressure and low temperature to a specific gravity ...

Embodiment 2

[0122] Embodiment 2: preparation and application of water preparation

[0123] Take the chrysanthemum polysaccharide extracted in Example 1, take an appropriate amount of chrysanthemum polysaccharide, add an appropriate amount of silicone oil, and add water to prepare a 100 g / L aqua, shake well, and seal it for storage. Spraying Atractylodes Rhizoma Atractylodes Rhizoma at the seedling stage and foliage, routine management, but no other pesticides, compared with the control group, can significantly reduce the disease index of Atractylodes Rhizoma Atractylodes Rhizome, and has a significant effect on seedling strengthening.

Embodiment 3

[0124] Embodiment 3: preparation and application of powder

[0125] Chrysanthemum polysaccharide (purity: 98%) was prepared according to the method in Example 1, dried, and dried diatomaceous earth was added according to the ratio of polysaccharide: diatomaceous earth mass ratio of 10::1, stirred and mixed, and set aside. Before use, the inducer was added to the common organic fertilizer according to the amount of 5kg per mu and mixed evenly. When the Fritillaria seedlings were loaded into the field, it was applied to the soil as a base fertilizer, and it was cultivated and managed conventionally, but no other pesticides were used. The results were compared with those of the control group. comparison, can significantly reduce the disease index of Fritillaria

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Abstract

The invention discloses the application of a wild chrysanthemum polysaccharide as a disease resistance elicitor in agriculture. The wild chrysanthemum polysaccharide of the present invention can be made into a plant resistance inducer, and is applied to the prevention and treatment of plant soil-borne diseases. The disease resistance inducer of the invention can significantly increase the induced disease resistance of plants and reduce the incidence of plant soil-borne diseases. The anti-disease inducer of the present invention is supplemented with commonly used pharmaceutical excipients, and can be made into dosage forms such as water, emulsion, powder and the like.

Description

technical field [0001] The invention relates to the field of biological control of plant soil-borne diseases in agriculture, in particular to the application of wild chrysanthemum polysaccharide as a disease-resistant elicitor in agriculture. Background technique [0002] In recent years, with the rapid development of agriculture, plant soil-borne diseases have become more and more serious, especially in heavy cropping land, which has produced serious plant diseases. Plant soil-borne diseases have a great impact on the quality and yield of plants, which is not conducive to agricultural production. At present, in order to control plant soil-borne diseases, the methods mainly include the use of chemical fungicides and the cultivation of resistant varieties, but there are some defects and deficiencies. Chemical fungicides can easily lead to "three R" problems, which not only cause environmental pollution, but also endanger human health. The cultivation of resistant varieties ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/12A01P21/00A01P3/00C08B37/00
Inventor 田薇陈磊
Owner ZHEJIANG FORESTRY UNIVERSITY
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