FEATURES OF CORONILLA VARIA L. РOPULATIONS IN THE CONDITIONS OF STEPPE PHYTOCOENOSES OF THE NATURE RESERVE MYKHAILIVSKA TSILYNA
Keywords:
populations, Coronilla varia L., Mykhailivska Tsilyna Nature Reserve, steppe phytocenoses, morphometry, population density, growth, legumes, biodiversity
Abstract
The article is devoted to population studies of the species Coronilla varia L. (Fabaceae) in the plant communities of the Mykhailivska Tsilyna Nature Reserve, which can serve as a basis for developing recommendations for the regime of use, conservation and protection of steppe biodiversity. The article presents a structural analysis of the flora of the phytocenoses in which the studied populations grew. Populations No. 1 and No. 2 grew in the phytocoenosis of Poetum angustifoliae arrhenatheretosum elatii. Population No. 3 – in the phytocoenosis of Festucetum valesiacae. The results of studies of the state of three populations of Coronilla varia L. in the conditions of steppe phytocenoses of the Mykhailivska Tsilyna Nature Reserve, which grew on the territory of the reserve, as well as in the adjacent territories and differed in the mode of use, protection and the term of conservation, are presented. The dependence of the main population parameters (population density, size of the population field), as well as growth processes on the ecological conditions of the territory and the degree of anthropogenic impact was analyzed. The results of the morphometric analysis of C. varia populations are presented in the form of morphograms. The relationship of morphometric characters of individuals of populations with the peculiarities of their habitat is analyzed. The assessment of the density of three populations of C. varia in the Mykhailivska Tsilyna Nature Reserve showed that the absence of haymaking, which results in the formation of a significant layer of plant litter, on the one hand, delays the species' occupation of a new phytocoenosis territory, which affects the size of the population field (it has a small area), and on the other hand, contributes to an increase in the density of the species' populations. As a result of the study of growth processes, it was found that at the initial stages, favorable conditions are created for the growth of C. varia populations under the haying regime, compared to phytocenoses without this effect. This is due to the absence of significant plant litter and, as a result, plants accumulate green mass more efficiently and successfully vegetate. At later stages of plant development, the influence of other environmental factors is added to mowing. The state of individuals of C. varia populations in steppe phytocoenoses directly depends on the organization of the haying regime, as well as on the influence of abiotic and biotic factors determined by the growth conditions of the species. Haying contributes to the normal passage of plants through all stages of their development and the realization of the genetic potential of the species. Individuals of populations of the species that grew in the area with regular haymaking had higher values of morphological parameters compared to populations in the area without haymaking.
References
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9. Bondarieva, L.M., Kyrylchuk, K.S., Skliar, V.H., Tykhonova, O.M., Zhatova, H.O. & Bashtovyi, M.G. (2019). Population dynamics of the typical meadow species in the conditions of pasture digression in flooded meadows. Ukrainian Journal of Ecology, 9 (2), 204–211.
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16. Klymenko, H.O. & Sherstiuk, M.Iu. (2019). Ridkisni roslyny pryrodnoho zapovidnyka «Mykhailivska tsilyna» [Plants of the Mykhailivska virgin nature reserve]. 17. Naukovyi visnyk Skhidnoievropeiskoho natsionalnoho universytetu imeni Lesi Ukrainky. Seriia. Biolohichni nauky, 4(388), 30–39 (in Ukrainian).
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19. Kyrylchuk, K., Skliar, V., Tykhonova, O. & Kobzhev, O. (2021). Vitality dynamics of populations of some legume species on floodplain meadows of the Psel river basin under grazing and haymaking (Ukraine). Horticulture. Scientific Papers. Series B, LXV(1), 406–414.
20. Kyrylchuk, K.S. & Bashtovyi, M.G. (2018). Kompleksnyi analiz populiatsii Trifolium pratense L. na zaplavnykh lukakh lisostepovoi zony Ukrainy [Complex analysis of Trifolium pratense L. populations on the flooded meadows of the Forest-Steppe zone of Ukraine]. Naukovyi visnyk Skhidnoievropeiskoho natsionalnoho universytetu imeni Lesi Ukrainky, 4 (377), 5–15 (in Ukrainian) doi: 10.29038/2617-4723-2018-377-5-15
21. Lavrenko, Ye.M. & Zoz, I.H. (1928). Roslynnist tsilyny Mykhailivskoho kinnoho zavodu (kol. Kapnista) Sumskoi okruhy [Roslinnistst tsiliny Mikhailivsky film factory (kol. Kapnist) Sumy district]. Okhorona pamiatok pryrody na Ukraini. Kharkiv, 2, 3–16 (in Ukrainian).
22. Larionov, M. S. (2022). Roslynnyi pokryv pryrodnoho zapovidnyka «Mykhailivska tsilyna»: istoriia doslidzhen ta suchasnyi stan [Vegetation cover of the Nature Reserve Mykhailivska Tsilyna: history of research and current state]. Visnyk Cherkaskoho universytetu. Seriia «Biolohichni nauky», 2, 53–65 (in Ukrainian).
23. Larionov, M. S. (2023). Roslyny Chervonoi knyhy Ukrainy na terytorii pryrodnoho zapovidnyka «Mykhailivska tsilyna» (Sumska oblast). Poshyrennia rarytetnykh vydiv bioty Ukrainy [Plants of the Red Book of Ukraine on the territory of the Nature Reserve Mykhailivska Tsilyna (Sumy Oblast)], 2, «Conversation Biology in Ukraine», 27, 177–180 (in Ukrainian).
24. Nekrasova, K.O. (2023). Istoriia doslidzhennia ta suchasnyi stan rarytetnoi skladovoi flory pryrodnoho zapovidnyka «Mykhailivska tsilyna» [The history of the study and the current state of the rare component of the flora of the Nature Reserve “Mykhailivska Tsilyna”]. Visnyk Sumskoho NAU. Seriia «Ahronomiia i biolohiia», 2(52), 62–71. doi: 10.32782/agrobio.2023.2.8
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Published
2024-12-23
How to Cite
Koplyk, Y. V. (2024). FEATURES OF CORONILLA VARIA L. РOPULATIONS IN THE CONDITIONS OF STEPPE PHYTOCOENOSES OF THE NATURE RESERVE MYKHAILIVSKA TSILYNA. Bulletin of Sumy National Agrarian University. The Series: Agronomy and Biology, 57(3), 18-28. https://doi.org/10.32782/agrobio.2024.3.3
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