It is obvious that under such conditions the adaptability of varieties changes, i.e. At the same time, a distinctive feature of the region is the frequent manifestation of stress factors – a long frost-free period or warm winters, sudden temperature drops during the dormant period, recurrent spring frosts, abnormally high temperatures and drought in summer, etc.

Krasnodar region is one of the regions of Russia with a favorable climate for growing cherries. Possessing a high potential for productivity, sweet cherries are susceptible to weather anomalies of various origins and under the annual influence of stressors, the realization of its productivity even in the southern regions, according to some data, is at the level of 50%. Sweet cherry belongs to fruit crops characterized by high temperature requirements. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © The Authors, published by EDP Sciences, 2021 Domestic varieties Alaya, Sashenka and Volshebnitsa, can be recommended for creating sustainable plantations in the south of Russia. Mathematical analysis showed a high correlation (R 2 = 0.97) of the yield of varieties from the abnormal temperatures in March and the degree of exposure to stress, i.e. in the absence of any type of stress, the yield of sweet cherry varieties reached 40.5 kg/tree or 27 t/ha, and the implementation of the production potential − 57.8%. The early impact of frost after a warm autumn, the death of the generative organs of sweet cherry was 90%, the realization of the productive potential − 5.6%.

Against the background of late return frosts, the death of the generative organs of sweet cherry was 95%, the realization of the productive potential − 3.3% after early spring frosts, freezing of cherry fruit buds was 30%, the realization of productive potential − 47.8%.

* Corresponding author: main stress factors for sweet cherries in the Krasnodar region are: late return frosts and early exposure to frost after a warm autumn.

Rimma Zaremuk, Yulia Dolya * and Tatiana Kopninaįederal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», 39 str.

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