Abstract. Root rot is a harmful and widespread disease of cereal crops. In the conditions of the Urals, Siberia, and Northern Kazakhstan, its causative agents are various species of fungi of the genus Fusarium and the fungus Bipolaris sorokiniana. The purpose of this study was to comparatively determine the effectiveness of microbiological, chemical and combined protection of spring wheat seeds. Field experiments were carried out on the experimental field of the Kurgan Scientific Research Institute of Agriculture – branch of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences (Kurgan SRIA – branch of FSBSI UrFASRC, UrB of RAS) in 2019, 2021, 2022. Scientific novelty lies in the determining the competitiveness of various methods of protecting spring wheat seeds in the conditions of the Trans-Urals within the framework of modern cultivation technology. The methods used are generally accepted in the Russian Federation. Results. In conditions of almost annual occurrence of negative natural phenomena for the growth and development of plants (droughts, frosts, sudden changes in temperature, dry winds, etc.), the use of seed treaters can be an additional stress for plants; the presence of the effect of shortening the underground internode can negatively affect field germination culture. To reduce these risks, as well as the pesticide load, we recommend using a combined method of seed protection. It involves the use of a mixture of a bacterial fungicide based on Bacillus subtilis with a chemical disinfectant at half the consumption rate. At the same time, the level of control of phytopathogens is maintained, there is no retardant effect, and economic efficiency is not inferior to the level of using a two-component chemical seed protectant (113–114 %). Chemical protection of seeds reduced the development of root rot pathogens by 63–72 %. The use of combined protection provided good control of phytopathogens, including the dominant fungi Fusarium. The predominant species from the genus Fusarium were the highly dangerous F. oxysporum, F. graminearum, F. sporotrichioides.
root rot, phytopathogens, spring wheat, fungicides, microbiological preparations, biological effectiveness
1. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF [Elektronnyy resurs]. URL: https://rosselhoscenter.com (data obrascheniya: 15.12.2023).
2. Toropova E. Yu., Kudryavcev A. E., Stecov G. Ya., Selyuk M. P. Faktologicheskie kriterii ocenki zdorov'ya sibirskih pochv // Agrohimiya. 2020. № 5. S. 3–11. DOI:https://doi.org/10.31857/S0002188120050166.; ; EDN: https://elibrary.ru/XBZJPJ
3. Toropova E. Yu., Glinushkin A. P., Insebaeva M. K., Stetsov G. Ya. The conidia Bipolaris sorokiniana Sacc. Shoem. distribution in the soil of Altai and Kazakhstan arid regions // Journal of Physics: Conference Series. 2021. Vol. 1942. Article number 012078. DOI:https://doi.org/10.1088/1742-6596/1942/1/012078.; ; EDN: https://elibrary.ru/LBXLIK
4. Kekalo A. Yu., Nemchenko V. V., Zargaryan N. Yu., Filippov A. S., Kozlova T. A. Sovremennyy podhod k voprosu zaschity pshenicy ot bolezney i vrediteley // Zemledelie. 2020. № 5. S. 41–45.; DOI: https://doi.org/10.24411/0044-3913-2020-10511; EDN: https://elibrary.ru/QOYEZK
5. Toropova E. Yu., Vorob'eva I. G., Mustafin M. A., Selyuk M. P. Griby roda Fusarium v Zapadnoy Sibiri // Zaschita i karantin rasteniy. 2019. № 1. S. 20–23.; EDN: https://elibrary.ru/PMNXLA
6. Toropova E. Yu., Vorob'eva I. G., Stecov G. Ya. [i dr.] Fitosanitarnyy monitoring i kontrol' fitopatogenov yarovoy pshenicy // Dostizheniya nauki i tehniki APK. 2021. T. 35, № 6. S. 25–32. DOI:https://doi.org/10.24411/0235-2451-2021-10605.; ; EDN: https://elibrary.ru/LKYSUG
7. Zdrozhevskaya S. D., Grishechkina L. D. Vliyanie pogodnyh usloviy na effektivnost' protraviteley // Zaschita i karantin rasteniy. 2019. № 2. S. 11–12.; EDN: https://elibrary.ru/YWJUPZ
8. Gavrilova O. P., Gagkaeva T. Yu., Orina A. S., Gogina N. N. Raznoobrazie gribov roda Fusarium i ih mikotoksinov v zerne iz aziatskoy chasti Rossii // Mikologiya i fitopatologiya. 2022. T. 56, № 3. S. 194–206.; DOI: https://doi.org/10.31857/S0026364822030035; EDN: https://elibrary.ru/DOHXYT
9. Gavrilova O. P., Orina A. S., Gogina N. N., Gagkaeva T. Yu. Problema fuzarioza zerna v Zaural'e: retrospektiva issledovaniy i sovremennaya situaciya // Agrarnyy vestnik Urala. 2020. № 7 (198). S. 29–40. DOI:https://doi.org/10.32417/1997-4868-2020-198-7-29-40.; ; EDN: https://elibrary.ru/ZQJZQQ
10. Domracheva L. I., Fokina A. I., Skugoreva S. G., Ashihmina T. Ya. Pochvennye griby roda Fusarium i ih metabolity: opasnost' dlya bioty, vozmozhnost' ispol'zovaniya v biotehnologii (obzor) // Teoreticheskaya i prikladnaya ekologiya. 2021. № 1. S. 6–15.; DOI: https://doi.org/10.25750/1995-4301-2021-1-006-015; EDN: https://elibrary.ru/KXCQYQ
11. Toropova E. Yu., Vorob'eva I. G., Mustafina M.A., Selyuk M. P. Monitoring gribov roda Fusarium Link. i ih mikotoksinov na zerne pshenicy v Zapadnoy Sibiri // Agrohimiya. 2019. № 5. S. 76–82.; DOI: https://doi.org/10.1134/S0002188119050119; EDN: https://elibrary.ru/ZDEEMX
12. Toropova E. Yu., Selyuk M. P., Vorob'eva I. G. Dinamika i mehanizmy kolonizacii kolos'ev yarovoy pshenicy fitopatogennymi mikromicetami // Uspehi medicinskoy mikologii. 2023. T. 25. S. 448–452.; EDN: https://elibrary.ru/TDFLCW
13. Toropova E. Yu., Suhomlinov V. Yu., Kirichenko A. A., Piskarev V. V. Parazitirovanie Bipolaris sorokiniana Sacc. Shoem. v sisteme organov sortov yarovoy pshenicy v severnoy lesostepi Priob'ya // Vestnik NGAU (Novosibirskiy gosudarstvennyy agrarnyy universitet). 2022. № 1 (62). S. 76–87. DOI:https://doi.org/10.31677/2072-6724-2022-62-1-76-87.; ; EDN: https://elibrary.ru/YRTPPI
14. Orina A. S., Gavrilova O. P., Gagkaeva T. Yu., Gannibal F. B. Mikromicety Alternaria spp. i Bipolaris sorokiniana i mikotoksiny v zerne, vyraschennom v Ural'skom federal'nom okruge // Mikologiya i fitopatologiya, 2020. T. 54, № 5. S. 365–377. DOI:https://doi.org/10.31857/S0026364820050086.; ; EDN: https://elibrary.ru/UREAXE
15. Orina A. S., Gavrilova O. P., Gagkaeva T. Yu., Gogina N. N. Kontaminaciya zerna v Zapadnoy Sibiri gribami Alternaria i ih mikotoksinami // Vestnik zaschity rasteniy. 2021. T. 104, № 3. S. 153–162. DOI:https://doi.org/10.31993/2308-6459-2021-104-3-15019.; ; EDN: https://elibrary.ru/WWCFJY
16. Spisok pesticidov i agrohimikatov razreshennyh k primeneniyu na territorii Rossiyskoy Federacii 2022 god // Prilozhenie k zhurnalu «Zaschita i karantin rasteniy». 2022. № 4.
17. Grishechkina L. D. Fungicidy dlya zaschity pshenicy yarovoy ot semennoy i pochvennoy infekcii // Zaschita i karantin rasteniy. 2022. № 3. S. 13–17. DOI:https://doi.org/10.47528/1026-8634_2022_3_13.; ; EDN: https://elibrary.ru/FRRKAD
18. Chekmarev V. V., Buchneva G. N., Korabel'skaya O. I., Dubrovskaya N. N., Gusev I. V. Vliyanie fungicidov na razvitie vozbuditeley kornevyh gniley pshenicy fuzarioznoy etiologii v usloviyah in vivo // Advances in Science and Technology: sbornik statey XV mezhdunarodnoy nauchno-prakticheskoy konferencii. Moskva, 2018. 272 s.; EDN: https://elibrary.ru/UWBMCN
19. Chekmarev V. V. Fuzarioznaya kornevaya gnil' pshenicy i kontrol' razvitiya zabolevaniya // The Scientific Heritage. 2020. № 57-1. S. 18–19. DOI:https://doi.org/10.24412/9215-0365-2020-57-1-18-19.; ; EDN: https://elibrary.ru/EZHCJF
20. Tariq M., Khan A., Asif M., Khan F., Ansari T., Shariq M., Siddiqui M. Biological control: a sustainable and practical approach for plant disease management // Acta Agric Scand on B – Soil & Plant Science. 2020. № 70 (6). S. 507–524. DOI:https://doi.org/10.1080/09064710.2020.1784262.
21. Sanin S. S. Zaschita rasteniy i ustoychivoe zemledelie v XXI stoletii // Zaschita i karantin rasteniy. 2020. № 4. S. 9–16.; EDN: https://elibrary.ru/DFXWXL
22. Pavlyushin V. A., Novikova I. I., Boykova I. V. Mikrobiologicheskaya zaschita rasteniy v tehnologiyah fitosanitarnoy optimizacii agroekosistem: teoriya i praktika // Sel'skohozyaystvennaya biologiya. 2020. № 3. S. 421–438 DOI:https://doi.org/10.15389/agrobiology.2020.3.421rus.; ; EDN: https://elibrary.ru/FEAOFP
23. Vlasenko N. G., Pavlyushin V. A., Teplyakova O. I. Effektivnost' zaschity yarovoy pshenicy biopreparatami i fungicidami v lesostepi Priob'ya: I. Pervye rezul'taty v ekstremal'nyh pogodnyh usloviyah // Vestnik zaschity rasteniy. 2021. № 4. S. 202–212. DOI:https://doi.org/10.31993/2308-6459-2021-104-4-15029.; ; EDN: https://elibrary.ru/GOBGHA
24. GOST 12044-93. Semena sel'skohozyaystvennyh kul'tur. Metody opredeleniya zarazhennosti boleznyami. Moskva: Standartinform, 2011. 209 s.
25. Fitosanitarnaya diagnostika agroekosistem: uchebno-prakticheskoe posobie / V.A. Chulkina, E.Yu. Toropova, G.Ya. Stecov [i dr.] Barnaul: GRAFIKS, 2017. 210 s.
26. Dospehov B. A. Metodika polevogo opyta (s osnovami statisticheskoy obrabotki rezul'tatov issledovaniy). Moskva: Al'yans, 2011. 350 s.
27. Spiridonov Yu. Ya. [i dr.] Adaptivno-integrirovannaya zaschita rasteniy. Moskva: Pechatnyy Gorod, 2019. 626 s.; EDN: https://elibrary.ru/UUZCTF
