Segetal Communities of the North-West Part of the Orenburg Region
Azaliya A. Kamaletdinova, Postgraduate Student
South Ural Botanical Garden-Institute, UFRC RAS, Ufa, Russia, azaliyakam17@gmail.com, https://orcid.org/0009-0009-1856-5353
Sergey M. Yamalov, Doctor of Biological Sciences, Chief Researcher
South Ural Botanical Garden-Institute, UFRC RAS, Ufa, Russia, yamalovsm@mail.ru, https://orcid.org/0000-0002-7052-522X
Gulnaz R. Khasanova, Candidate of Biological Sciences, Senior Researcher
Bashkir Research Institute of Agriculture UFRC RAS Ufa, Russia, gulnazrim@yandex.ru, https://orcid.org/0000-0001-7355-1450
Yaroslav M. Golovanov, Candidate of Biological Sciences, Leading Researcher
South Ural Botanical Garden-Institute, UFRC RAS, Ufa, Russia, jaro1986@mail.ru, https://orcid.org/0000-0002-4790-8900
Abstract
A geobotanical study of weed-field communities in the steppe zone of the northwestern Orenburg Region, with focus on grain and row crops, was conducted during the 2024 field season. The study identified a new variant of the Echinochloa crus-galli — Lactucetum tataricae association within the Eurasian vegetation classification system. The coenoflora of the studied communities was noted to be rich in invasive species, accounting for 20% of the total number of species. A total of 11 invasive species from the preliminary “black list” of Orenburg Region flora were identified. Species with the highest activity and consistency are Amaranthus blitoides, Amaranthus retroflexus, Carduus acanthoides, Echinochloa crus-galli, Euphrosyne xanthiifolia, Lactuca serriola, Setaria viridis. The ordination analysis revealed that the Echinochloa crus-galli variant represents the most mesophytic community of segetal vegetation in the Orenburg Region. The communities deserve close attention and monitoring of their spread as field weeds with a high proportion of invasive and quarantined species.
Acknowledgments: The work was carried out within the framework of the state task No. 075-03-2022-001 on the topic “Biodiversity of natural systems and plant resources of Russia: assessment of the state and monitoring of dynamics, problems of conservation, reproduction, increase and rational use” of the South Ural Botanical Garden Institute of the Russian Academy of Sciences dated 14.01.2022
For citation:
Kamaletdinova A. A., Yamalov S. M., Khasanova G. R., Golovanov Y. M. Segetal Communities of the North-West Part of the Orenburg Region. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2026, no. 1 (57), pp. 42—56. DOI: https://doi.org/10.32516/2303-9922.2026.57.3.
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