New syntaxons of segetal vegetation of the Orenburg region
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
Azalia A. Kamaletdinova, Postgraduate Student
South Ural Botanical Garden-Institute, UFRC RAS, Ufa, Russia, azaliyakam17@gmail.com, https://orcid.org/0009-0009-1856-5353
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
The geobotanical study of weed-field communities of crops within the steppe zone of the Orenburg region was carried out, their diversity was revealed being represented by 3 associations and 1 community. The cenoflora of weed communities contains a group of species not found in similar communities distributed to the north along the zonal gradient (Corispermum laxiflorum, C. hyssopifolium, Chondrilla brevirostris, Tribulus terrestris, etc.). Ordination analysis showed that the association Amarantho albi — Lactucetum tataricae distributed in melon and sunflower crops is characterized by the greatest originality of floristic composition. A large number of invasive species — Amaranthus albus, A. blitoides, A. retroflexus, Ambrosia trifida, Artemisia sieversiana, Conyza canadensis, Iva xanthiifolia, Helianthus lenticularis, Kochia scoparia, Lactuca serriola, Portulaca oleracea, Ulmus pumila, Xanthium albinum — were observed in the composition of the communities.
Acknowledgments: The research was carried out within the framework of the state assignment of the South Ural Botanical Garden-Institute of UFRC RAS no. AAAA-A18-118011990151-7
For citation:
Yamalov S. M., Khasanova G. R., Kamaletdinova A. A., Golovanov Y. M. New syntaxons of segetal vegetation of the Orenburg region. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2024, no. 3 (51), pp. 112—125. DOI: https://doi.org/10.32516/2303-9922.2024.51.7.
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