E. P. Artemyeva1, 2, V. V. Valdayskikh1, M. A. Chashchikhina1 , M. Yu. Karpukhin3
1 Ural Federal University named after the first President of Russia B. N. Yeltsin, Ekaterinburg, Russia
2 Ural State University of Railway Transport, Ekaterinburg, Russia
3 Ural State Agrarian University, Ekaterinburg, Russia
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Volume 26 No. 1
Date of paper submission: 05.11.2025, date of review: 25.11.2025, date of acceptance: 03.12.2025.
Published: 01/30/2026
Abstract. The purpose of the research is to assess the impact of global climate change on the growth, development, and productivity of the phytomass of Amaranthus caudatus and Amaranthus cruentus in the conditions of the Middle Urals, based on a comparative analysis of agrobiological indicators across different growing seasons. Methods. The article presents data of the phenology and productivity of the phytomass of two amaranth species during 1991–1995 and 2021–2025. Based on these data, a comparative analysis was carried out. Scientific novelty lies in identifying the dynamics and stability of amaranth productivity under changing climate conditions, based on unique long-term monitoring data separated by a thirty-year interval. Results. The study confirmed that both amaranth species exhibit high productivity when cultivated for fodder, regardless of annual weather conditions, which is attributed to their inherent drought tolerance and efficient C4 -type photosynthesis. A clear dependence of phytomass formation on hydrothermal indicators was identified. The best results were observed in years with moderate moisture, when the hydrothermal coefficient was in the range of 1.3–1.4. At the same time, extreme conditions (drought or excessive waterlogging) consistently led to a decrease in above-ground biomass yield. Under changing climate conditions, amaranths are becoming highly promising crops for fodder production and for creating carbon farms in the Middle Urals. Keywords: amaranth, phenology, productivity, climatic changes Acknowledgements. The study was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation, the topics of the State Assignment FEUZ-2024-0011. For citation: Artemyeva E. P., Valdayskikh V. V., Chashchikhina M. A., Karpukhin M. Yu. Comparative productivity of amaranths phytomass over a long period in the context of global climate change. Agrarian Bulletin of the Urals. 2026; 26 (01): 17‒27. https://doi.org/10.32417/1997-4868-2026-26-01-17-27 (In Russ.)
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