The research results on heat and drought resistance of the local grapevine cultivars of Crimea during 2023–2024 are presented. The criteria for assessing the cultivar resistance included plant water balance (determined by measuring the water potential of leaves and their water-holding capacity); growth processes (determined by measuring shoot length and leaf area); and yield (determined by the weight of the harvest per vine). An assessment of yield depression due to stress is provided. It has been reliably established that plant water status influences the growth, development, and formation of the grape harvest. The data obtained as a result of the research allowed us to identify the following varieties that are the most resistant to heat and drought: ‘Asma’, ‘Tergulmek’, ‘Alburla’ and ‘Kok Pandas’.
Berezovskaya S.P., Ryff I.I., Popova M.S., Stamatidi V.Yu.
