Assessment of the impact of a complex of harmful organisms on the spring wheat yield in the forest-steppe of Western Siberia
https://doi.org/10.26898/0370-8799-2026-4-9
Abstract
The results of assessing the impact of a complex of harmful organisms on the yield and quality of spring soft wheat varieties in the forest-steppe zone of the Novosibirsk Ob region from 2009 to 2011, as well as in 2021 and 2023 are presented. Experimental studies were conducted on six zoned varieties of spring soft wheat of different maturity: middle-early (Novosibirskaya 29 and Omskaya 36), medium-maturing (Novosibirskaya 89 and Omskaya 29), and middle-late (Baganskaya 95 and Omskaya 28). Small total crop losses from a complex of harmful organisms occurred on the medium-maturing variety Omskaya 29 and the middle-late variety Baganskaya 95. Minimal productivity losses were noted on the more productive middle-early variety Omskaya 36. The multiple regression analysis based on the disease development and yield indicates that the studied varieties of spring soft wheat reacted differently to leaf-stem infections. A negative correlation between yield and plant infection with powdery mildew has been noted. The highest susceptibility to this disease has been established in the middle-early variety Omskaya 36. Overall, in terms of the complex of leaf-stem infections (powdery mildew and brown rust), the middle-early variety Omskaya 36 is less resistant. When studying the reaction of the varieties to septoria leaf spot disease, no statistically significant negative relationship between the disease and the yield was found at the observed level of plant infection. One can only speak of a certain tendency toward such a connection in the varieties Novosibirskaya 89 and Omskaya 29, which indicates their relative resistance to septoria leaf spot disease. The varieties Novosibirskaya 89, Omskaya 36, and Omskaya 28 were the most sensitive to the complex of harmful organisms. The varieties Novosibirskaya 29 and Omskaya 29 were the least sensitive. It has been noted that these varieties responded more to diseases compared to pests
Keywords
About the Authors
V. A. Cheremnova
Siberian State University of Engineering and Biotechnology
Russian Federation
Russian Federation
Valentina A. Cheremnova, Chief Landscape Architect
160, Dobrolyubova St., Novosibirsk, 630039
R. R. Galeev
Siberian State University of Engineering and Biotechnology
Russian Federation
Russian Federation
Rinat R. Galeev, Chair Professor, Doctor of Science in Agriculture, Professor
160, Dobrolyubova St., Novosibirsk, 630039
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Review
For citations:
Cheremnova V.A., Galeev R.R. Assessment of the impact of a complex of harmful organisms on the spring wheat yield in the forest-steppe of Western Siberia. Siberian Herald of Agricultural Science. 2026;56(4):78-86. (In Russ.) https://doi.org/10.26898/0370-8799-2026-4-9
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