COMPATIBILITY OF SILICONE-BASED ANTIFOAMING COMPOSITIONS WITH BACILLUS VELEZENSIS MGMM30 STRAIN
DOI 10.12737/2782-490X-2025-4-4-67-72 УДК 632.981
Keywords:
antifoaming compositions, spring wheat, Bacillus velezensis, phytopathogens, seed infection, biopreparationsAbstract
Nowadays, there is a significant interest in the use of biological plant protection products as an ecologically
friendly alternative to chemical fungicides in integrated plant protection systems. The aim of the study was to investigate
the effect of six antifoaming compositions that can be used to cultivate the biological plant protection agent Bacillus velezensis MGMM30 on strain viability, phytopathogenic load and growth parameters of seedlings. The methodology included
seed germination on nutrient media, in humid chambers and on filter paper rolls, with assessment of infection by major
seed-borne pathogens (Alternaria sp., Fusarium sp., etc.) and biometric parameters. The results demonstrated differential
effects of defoamers: compositions 3T80-SiO2 and 4T80-SiO2 in combination with the strain demonstrated the most pronounced effect, reducing seed infestation to 0% on nutrient medium and ensuring high germination rates (78–86.7%),
while significantly suppressing pathogens in other methods. 5T80 variant also showed high efficacy in reducing infection
background. Thus, antifoaming compositions used in the production of B. velezensis MGMM30 bioprotection agent can
enhance the effectiveness of biological agent, opening up prospects for the development of industrial forms of biofungicides with improved efficacy.
For citation: Karimova L.Z., Zagidullin A.A, Serov N.Yu, Valiev A.R., Validov Sh.Z. Compatibility of silicone-based
antifoaming compositions with Bacillus velezensis MGMM30 strain. Agrobiotechnologies and digital farming. 4(16).
67-72 p. http://dx.doi.org/10.12737/2782-490X-2025-4-4-67-72
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