SCREENING OF STRAINS OF BACTERIA OF THE GENUS AZOTOBACTER AND STUDY OF BROAD-SPECTRUM CHARACTERISTICS
30.01.2023
International Scientific Journal "Science and Innovation". Series D. Volume 2 Issue 1
Tursunov Abror Xabibullo ugli
Abstract. The study was designed to screen individual Azotobacter genera bacteria strains for a wide spectrum of properties and several physiological properties related to plant growth during experiments. In the experiments, the antagonistic properties against five different pathogens were tested.
Studies were conducted against isolates of these five types of pathogens F oxysporum f sp vasinfectum, Fusarium oxysporum f sp lycopersici, Rhizoctonia solani. It showed a positive result in broad-spectrum biocontrol of isolated strains resistant to the development of five different pathogens.
In the extended antagonist test, these strains were observed together with bacteria of the Azotobacter genus as a biological control against major plant pathogens such as F oxysporum f sp vasinfectum, Fusarium culmorum, Fusarium graminearum, Fusarium oxysporum f sp lycopersici, Rhizoctonia solani.
Keywords: Fusarium graminearum, Fusarium oxysporum, F. oxysporum f. sp. Lycopersici, R. solani, Azotobacter chroococcum, Antifungal analysis, nitrogen fixation, pathogen, PGPR
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