Influence of fungicidal seed dressing agents of spring wheat on the growth of the root rot pathogen colonies
Year: 2025
Type: article
Abstract: The purpose of the study was to identify differences in the sensitivity of the spring wheat main soil phytopathogens to fungicide seed treatments at different rates of their application. The objectives of the study included: measuring the diameters of soil micromycete colonies in dynamics and determining the rate of their radial growth, monitoring the growth of micromycete colonies under the influence of spring wheat seed treatments used at maximum and minimum application rates, determining the biological effectiveness of fungicidal preparations and their application rates against individual phytopathogens. The studies were carried out in the laboratory conditions using generally accepted methods. The study of the radial growth rate of phytopathogenic micromycetes isolates colonies Bipolaris sorokiniana , Fusarium poae , F. oxysporum , F. solani , F. equiseti , F. sporotrichioides , isolated from the underground organs of spring wheat showed that the differences reached 4.5 times, the fastest growing was F. equiseti , the slowest was B. sorokiniana . Phytopathogens B. sorokiniana , F. sporotrichioides , F. poae had 100% sensitivity to the treatments Kinto Duo, Dividend Star, Celeste Max, Dividend Supreme, Vibrance Integral, Scenic Combi, regardless of the maximum or minimum rate of their application. Phytopathogens F. equiseti , F. solani and F. oxysporum had shown selectivity towards seed treatments and their application rates, which requires a balanced approach to optimizing treatment technology when these phytopathogens dominate on seeds and/or in the soil.
Authors: R. I. Trunov, E. Yu. Toropova
Language: English
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W4416166558