Climate Change Impact on the Duration of Great Vegetation Period and Vegetation Period of Beetroot and Watermelon in Slovakia

Climate change brings to the whole world numerous challenges such as an increase in global temperature, weather fluctuations, periods of drought and heat alternating local floods. While majority effects are negative for agricultural production, some can be beneficial. Our work presents evaluation changes duration great vegetation period (delineated with beginning end days average temperature T ≥ 5.0 °C) watermelon (Citrullus lanatus Thumb.) beetroot (Beta vulgaris L.). Data sets on monthly air temperatures 1961–2020 from one hundred agroclimatic stations Slovakia were selected estimation future using statistical methods (linear trendline). Based requirements crops, potential maximum was estimated several decades 2041 up 2100. The results clearly showed prolongation their zonation Slovakia. In 2011–2020, southernmost part (Danubian Lowland) 15–20 longer than decade 1971–1980. It is expected, that this value will rise by another 10–15 2091–2100. Since 1971–1980, increased 5–10 when compared 2011–2020. expected 2091–2100, its prolong 30–35 days.