Stamatidi, V.Yu., & Ryff, I.I. (2022). Features of changes in water potentials in the grape cultivars Muscat beliy and Tsitronnyi Magaracha in the conditions of the southern coast of Crimea under various hydrothermal factors. Sovremennoe Sadovodstvo – Contemporary Horticulture, 4, 1-12. https://journal-vniispk.ru/pdf/2022/4/15.pdf Global climate warming has caused an increase in periods of drought, which in turn has led to a decrease in the moisture supply of grape plants and loss of crops. Modern breeding programs are aimed at screening cultivars that combine high yields with resistance to temperature and water stress. This paper presents the results of studies aimed at revealing the patterns of response adaptive reactions of grape cultivars to hydrothermal stresses in the summer period in the conditions of the Southern coast of Crimea. The data on the change in the hydrothermal coefficient during the years of research, 2019—2021, were analyzed. During the ripening period of berries, the value of the HTC (hydrothermal coefficient) in 2019 was 0.3 and in 2020 it was 0.1, which corresponded to the “dry period” gradation. The adaptive capabilities of grape cultivars and their differences caused by ambiguous resistance to abiotic stresses were revealed. The responses of plants to changes in the water regime were reflected in water potentials; water potentials of leaves were determined using the standard Scholander method. Water potentials were measured twice a day: in the predawn and afternoon hours. In drought years 2019—2020, water potentials (Ψ) of the leaves rose to a lesser extent in the Tsitronnyi Magaracha cultivar compared to the Muscat Beliy cultivar: during the ripening of berries, the pre-dawn Ψð in Tsitronnyi Magarach reached 0.63 MPa, at the same time, in Muscat Beliy, it rose to 0.69 MPa. A similar picture was observed in the increase in daytime water potentials Ψd in Tsitronnyi Magaracha – up to 1.53 MPa, in Muskat Beliy – up to 1.59 MPa. The influence of lack of moisture was manifested in a decrease in yield, which was an integral expression of all processes of plant metabolism. The dependence of the yield of grape cultivars on water potentials was determined. Varietal differences in the change in water potentials of leaves, which were a marker for determining responses to drought, were established, and a relationship between water potentials and yield was revealed. It has been established that Tsitronnyi Magaracha better adapts to drought conditions.
1.Becker, H. (2015). Plant breeding (V.I. Leunova & G.F. Monakhos, Eds.). Partnership of scientific publications KMK. (In Russian).
2.Genkel, P.A. (1982). Physiology of heat- and drought-resistance of plants. Nauka. (In Russian).
4.Korsakova, S.P. (2017). Monitoring of climatic changes and its account in viticulture activities. In The VI International Scientific and Practical Conference “Konyaev Readings.” Ural State Agrarian University. https://elibrary.ru/qfouvq (In Russian, English abstract).
5.Kuznetsov, V.V., Zlobin, I.E., Kartashov, A.V., Sarvin, B.A., Stavrinidi, A.R., Pashkovsky, P.P., & Ivanov, Yu.V. (2018). Physiological adaptation mechanisms of coniferous plants to drought. In Mechanisms of Resistance of Plants and Microorganisms to Unfavorable Environmental: Proceedings of the All-Russian Scientific Conference (Part 1). The V.B.Sochava Institute of Geography. https://doi.org/10.31255/978-5-94797-319-8-17-20 (In Russian, English abstract).
6.Nenko, N.I., Kiseleva, G.K., Ilina, I.A., Sokolova, V.V., Zaporozhets, N.M., Karavaeva, A.V., & Shalyakho, T.V. (2021). Metabolic changes in different grape varieties in the activation of protective reactions to abiotic stress of the summer period. Fruit Growing and Viticulture of South Russia, 72, 145–159. https://doi.org/10.30679/2219-5335-2021-6-72-145-159 (In Russian, English abstract).
7.Nilov, N.G. (2001). Tendencies in modern plant growing resulting in the need to organize plant water regime monitoring services. Viticulture and Winemaking, 32, 9–12. (In Russian).
8.Petrov, V.S., & Talash, A.I. (2018). Varieties for biological viticulture. Scientific Works of North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-Making, 15, 71–74. https://doi.org/10.30679/2587-9847-2018-15-71-74 (In Russian, English abstract).
9.Plugatar, Yu.V., Korsakova, S.P., & Ilnitsky, O.A. (2015). Environmental monitoring of the southern coast of Crimea. Arial. https://www.elibrary.ru/vcijmh (In Russian).
11.Stamatidi, V.Yu., & Ryff, I.I. (2017). Biotechnological evaluation of the heat resistance degree in some grapevine cultivars. Ecosystems, 11, 68–72. https://www.elibrary.ru/zxqxbv (In Russian, English abstract).
12.Charrier, G., Delzon, S., Domec, J. C., Zhang, L., Delmas, C. E. L., Merlin, I., Corso, D., King, A., Ojeda, H., Ollat, N., Prieto, J. A., Scholach, T., Skinner, P., van Leeuwen, C., & Gambetta, G. A. (2018). Drought will not leave your glass empty: Low risk of hydraulic failure revealed by long-term drought observations in world’s top wine regions. Science Advances, 4(1). https://doi.org/10.1126/sciadv.aao6969
13.Kudoyarova, G.R., Kholodova, V.P., & Veselov, D.S. (2013). Current state of the problem of water relations in plants under water deficit. Russian Journal of Plant Physiology, 60(2), 165–175. https://doi.org/10.1134/s1021443713020143
14.Kuznetsov, V.V., & Kholodova, V.P. (2011). Foreword to the publication of materials of all-Russian Symposium “Plant and Stress” (Moscow, October 9–12, 2010). Russian Journal of Plant Physiology, 58(6), 951–951. https://doi.org/10.1134/s1021443711060112
15.Martorell, S., Medrano, H., Tomas, M., Escalona, J.M., Flexas, J., & Diaz-Espejo, A. (2014). Plasticity of vulnerability to leaf hydraulic dysfunction during acclimation to drought in grapevines: an osmotic-mediated process. Physiologia Plantarum, 153(3), 381–391. https://doi.org/10.1111/ppl.12253
16.Medrano, H., Tortosa, I., Montes, E., Pou, A., Balda, P., Bota, J., & Escalona, J.M. (2018). Genetic Improvement of Grapevine (Vitis vinifera L.) Water Use Efficiency: Variability Among Varieties and Clones. In I.F.G. Tejero & V.H.D. Zuazo (Eds.), Water Scarcity and Sustainable Agriculture in Semiarid Environment: tools, strategies, and challenges for woody crops (pp. 377–401). Academic Press. https://doi.org/10.1016/B978-0-12-813164-0.00016-8
18.Shumilina, J.S., Kuznetsova, A.V., Frolov, A.A., & Grishina, T.V. (2018). Drought as a form of abiotic stress and physiological markers of drought stress. Journal of Stress Physiology & Biochemistry, 14(4), 5–15. https://www.elibrary.ru/ysjltf
19.Van Leeuwen, C., & Darriet, P. (2016). The Impact of Climate Change on Viticulture and Wine Quality. Journal of Wine Economics, 11(1), 150–167. https://doi.org/10.1017/jwe.2015.21
20.Volynkin, V., Likhovskoi, V., Levchenko, S., Vasylyk, I., Ryff, I., Berezovskaya, S., Boyko, V., & Belash, D. (2021). Modern trends of breeding cultivars for recreational areas of viticulture. Acta Horticulturae, 1307, 13–20. https://doi.org/10.17660/actahortic.2021.1307.3
21.Yang, C., Menz, C., Fraga, H., Costafreda-Aumedes, S., Leolini, L., Ramos, M.C., Molitor, D., van Leeuwen, C., & Santos, J.A. (2022). Assessing the grapevine crop water stress indicator over the flowering-veraison phase and the potential yield lose rate in important European wine regions. Agricultural Water Management, 261, 107349. https://doi.org/10.1016/j.agwat.2021.107349