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A strain of Bacillus Velez and its agent and application

A technology of Bacillus velesi and Bacillus, applied in the application, fungicides, bacteria and other directions, can solve the problems of reducing the use value of tobacco leaves, affecting the chemical composition of tobacco leaves, and increasing the content of total nitrogen, so as to improve the use value of tobacco leaves, The value of good practical application, the effect of improving the quality of tobacco leaves

Active Publication Date: 2022-05-06
TOBACCO RES INST CHIN AGRI SCI ACAD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The infection of Alternaria Alternaria will affect the chemical composition of tobacco leaves, increase the content of total nitrogen, reduce the content of total sugar, reducing sugar and starch, thereby affecting the quality of tobacco leaves and reducing the use value of tobacco leaves
[0005] At present, the main method to prevent the occurrence of mildew and the expansion of disease spots during tobacco leaf curing is to spray chemical agents, but it is very easy to cause excessive pesticide residues. Therefore, safer and more environmentally friendly biological control agents are needed to replace these chemical agents

Method used

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  • A strain of Bacillus Velez and its agent and application
  • A strain of Bacillus Velez and its agent and application
  • A strain of Bacillus Velez and its agent and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] 1 Materials and methods

[0062] 1.1 Materials

[0063] The biocontrol bacteria for test: Bacillus Veles GY1;

[0064] Pathogens tested: cotton blight, cucumber wilt, peanut fusarium, grape anthracnose, tomato late blight, tobacco red spot, wheat scab, potato fusarium wilt and other 8 kinds of pathogens;

[0065] Variety of flue-cured tobacco: Honghua Dajinyuan;

[0066] Roasting method: intensive baking on hanging rods.

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PUM

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Abstract

The invention provides a strain of Bacillus Velez and its bacterial agent and application, which belong to the technical field of microbes. The present invention screens out a strain of biocontrol bacteria Bacillus velezensis GY1 from the rhizosphere soil of healthy tobacco, which has significant antagonism to various plant pathogenic bacteria that occur seriously in agricultural production, and has a wide antibacterial spectrum. At the same time, it has been proved by experiments that it can effectively control the occurrence of tobacco leaf mildew and the expansion of tobacco red spot disease spots during the curing period, thereby improving the quality of tobacco leaves and increasing the use value of tobacco leaves, indicating that the strain has broad application prospects in the field of biological control of plant diseases and Good practical value.

Description

technical field [0001] The invention belongs to the technical field of microbial prevention and control, and in particular relates to a strain of Bacillus velesii and its bacterial agent and application. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Tobacco leaf mildew and rot caused by Rhizopus oryzae Went et Geerl. is becoming more and more serious in various tobacco areas, causing serious economic losses. Rhizopus oryzae has thermophilic characteristics, and the petiole begins to mold within 24 hours after tobacco leaves are roasted (the early stage of yellowing and dehumidification). [0004] Tobacco red spot disease is one of the most serious diseases in the matur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20A01N63/22A01P3/00C12R1/07
CPCA01N63/22C12R2001/07C12N1/205
Inventor 王晓强王东坤孙光军宋光龙袁源张永峰冯超夏志林李想李光雷崔志燕李苗苗
Owner TOBACCO RES INST CHIN AGRI SCI ACAD
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