The application of a kind of plant inducer containing Rhizoma sagitta polysaccharides to prevent plant diseases

A technology for plant resistance and plant disease, which is applied in the field of pesticides and can solve problems that have not yet been discovered.

Active Publication Date: 2021-05-14
贵州量子数力科技有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the use of S. sagittarius polysaccharide as an inducer for the control of agricultural diseases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: The test of preventing wheat powdery mildew by Sacredvine polysaccharides

[0025] The Caulis sagelicula polysaccharide prepared in the above-mentioned preparation examples was formulated into a 0.1 mg / mL aqueous solution of the sagecabula polysaccharide, and then the aqueous solution of the sagecabula polysaccharide was sprayed on the potted wheat leaves of 2 leaves and 1 heart stage with consistent growth, every Spray once every 2 days, spraying 3 times in total, and repeat 3 times for each treatment. The control group was treated with the same concentration of amino-oligosaccharides, and the blank group was replaced with water. Two days after the last spraying, the powdery mildew conidia were inoculated by the spore shake-off method, and the amount of spores was controlled at about 25 spores per field of view under a 10×10 magnification electron microscope. After 7-10 days, after the incidence of blank control wheat plants stabilized, the incidence of whea...

Embodiment 2

[0029] Embodiment 2: The test of the prevention of strawberry botrytis by the polysaccharide of Rhododendron sagitta

[0030] The above-mentioned preparation examples prepared the Caulis sanctum polysaccharides prepared into a 0.1 mg / mL aqueous solution of the Caulis sanctum polysaccharides, and then the aqueous solution of the Caulis sanctum polysaccharides was sprayed on uniformly growing strawberry plants, and each treatment was repeated 3 times. The control group was amino oligosaccharides of the same concentration, and the blank group was replaced with water. After 24 hours, spray and inoculate the strawberry seedlings with a suspension of Botrytis cinerea spores, and the spore concentration is 20-30 spores per field of view under the microscope. After 7-10 days, after the incidence of blank control strawberry plants stabilized, the incidence of strawberry gray mold was counted and the control effect was calculated.

[0031] See Table 2 for the results of the resistance ...

Embodiment 3

[0034] Example 3: Test of Preventing Potato Late Blight by Polysaccharides of S.

[0035] The above-mentioned preparation examples prepared the Rhizoctonia polysaccharides prepared into 0.1mg / mL of Rhizoctonia polysaccharides aqueous solution, then sprayed the Rhizoctonia polysaccharides aqueous solution on the potato leaves with a plant height of about 15cm, each treatment was repeated 3 times, and the control The same concentration of amino oligosaccharides was used in the group, and the blank group was replaced with water. After 24 hours, the germinated potato late blight spore suspension (1.3×10 4 per mL) on the leaves, and after 7-10 days, the incidence of potato late blight was counted and the control effect was calculated after the incidence of blank control potato plants stabilized.

[0036] See Table 3 for the anti-potato late blight resistance results of S. It can be seen from Table 3 that the polysaccharides of Rhizoma sagitta has a good preventive effect on potat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to the application of a plant inducer containing Rhododendron polysaccharide in the prevention of plant diseases, characterized in that, the plant inducer containing Rhizoctonia polysaccharide is used to inhibit the following crop pathogens: wheat powdery mildew (Blumeria graminis), strawberry gray mold (Botrytis cinerea), potato late blight (Phytophthora infestans), rice blast fungus (Pyricularia grisea) or bacterial wilt (Pseudomonas solanacearum); Successively adding petroleum ether, ethanol for extraction, suction filtration and other steps in the system. The polysaccharides of Sargentina can induce plant resistance, have a broad-spectrum preventive effect on a variety of crop pathogens, reduce the use of a large number of chemical fungicides, and reduce the environmental pollution caused by the use of chemical pesticides.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a plant polysaccharide used for preventing plant diseases, and more particularly relates to a plant polysaccharide used for preventing plant diseases. . [0002] technical background [0003] For a long time, the prevention and control of plant diseases has mainly been based on chemical agents, but the long-term use of chemical pesticides in large quantities has caused a great impact on the environment and human health. Therefore, more and more people pay more and more attention to the methods of disease prevention and control that are safer and more environmentally compatible. Among them, plant inducers have attracted people's attention because of their high efficiency and low toxicity. Plant inducers can induce plants to produce defense responses after use, and then make plants develop stress resistance. [0004] Polysaccharides are a class of substances with various activit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01P1/00A01P3/00C08B37/00
CPCA01N43/16C08B37/0003
Inventor 陈华保杨春平张敏张一博魏海林李晓燕李伟
Owner 贵州量子数力科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap