The paper evaluates the resistance of soybean varieties to bacterial pathogens – Pseudomonas savastanoi pv. glycinea and Curtobacterium flaccumfaciens pv. flaccumfaciens. Six strains of pathogens were used in the work. Seeds of 47 soybean varieties harvested in 2020–2021 were provided by agricultural enterprises from various regions of Russia, including the Orel, Voronezh and Ryazan regions, Stavropol and Khabarovsk krai. It was found that all the studied varieties were susceptible to infection, but the degree of damage was very different. Varieties with high resistance and susceptibility have been identified. The least affected variety, Soer 4, is recommended for use in breeding as a source of resistance. Osmon and Nordica varieties, characterized by an extremely high degree of damage, can be recommended for conducting virulence tests and assessing the pathogenicity of bacterial strains.

Tarakanov Rashit I., Dzhalilov Fevzi S.-U.

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