Authors:
S. G. Denisova, A. A. Reut
South-Ural Botanical Garden-Institute – separate structural unit of Ufa Federal Research Centre of Russian Academy of Sciences, Ufa, Russia
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Abstract. Purpose. Study of the effect of anti-stress adaptogens on the water regime of some varieties of chrysanthemum in the conditions of the Bashkir Pre-Urals. Methodology and methods. The analysis of indicators of water regime is based on the method of artificial wilting (V. N. Tarenkov, L. N. Ivanova) and the method of saturation of plant samples (V. P. Moiseev, N. P. Reshetskiy). Plants were processed once, and samples were taken in three terms. Calculations were carried out by standard methods using statistical packages of the Microsoft Excel 2003 and the Agros 2.13. Results. The dynamics of indicators of the water regime during the treatment with the preparations “Gumi-20” and “Obereg” is analyzed. An assessment of the total water content, water retention capacity, daily moisture loss and water deficit of ten varieties of chrysanthemum bred by the South-Ural Botanical Garden-Institute of UFRC RAS in the period under study is given. Studies have shown that varieties of chrysanthemum in the Bashkir Ural under the same soil-climatic and agrotechnical conditions had the following indicators: total water content ‒ 69.4–86.9 %, water-holding capacity ‒ 25.6–53.8 %, daily moisture loss ‒ 17.2–61.0 %, water deficit ‒ 10.9–13.2 %. The use of anti-stress adaptogens did not have a significant effect on the parameters of the water regime, or their effect was variety-specific. As a result of the correlation-regression analysis, inverse relationships were revealed between the indicators of water deficit and the total water content, as well as between the daily water loss and water retention capacity. Scientific novelty. For the first time, the water regime of varieties of chrysanthemum of the SUBGI UFRC RAS selection was studied, the dependences of the water regime indicators were revealed, and the assessment of the expediency of using anti-stress adaptogens for certain varieties in the conditions of the Bashkir Pre-Urals was given.
Keywords: chrysanthemum, water regime; general hydration, water retention capacity, water deficit, Botanical Garden Institute, Bashkir Pre-Urals.
For citation: Denisova S. G., Reut A. A. Izuchenie vliyaniya adaptogenov na vodnyy rezhim nekotorykh sortov roda Chrysanthemum L. pri introduktsii v Bashkirskoe Predural’e [Study of the influence of adaptogens on the water regime of some varieties of the genus Chrysanthemum L. during the introduction into the Bashkir Pre-Urals] // Agrarian Bulletin of the Urals. 2020. No. 11 (202). Pp. 2–13. DOI: 10.32417/1997-4868-2020-202-11-2-13. (In Russian.)
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