Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
In the face of ongoing climate change and the increasing frequency of droughts, the identification of crop species tolerant to water stress has become a critical research focus. Jerusalem artichoke (Helianthus tuberosus L.) exhibits a high tolerance to water deficiency, making it a promising species under limited precipitation conditions. The objective of this study was to assess the impact of variable thermal and precipitation conditions on the yield of green biomass of two cultivars – Albik and Rubik. The experiment was conducted in eastern Poland between 2020 and 2022 using a split-split-plot design with three replications. Meteorological conditions were found to significantly affect yield levels. High air temperatures and elevated growing degree days (GDD) negatively influenced biomass production in both cultivars, whereas cooler and drier years resulted in notably higher yields. The highest yields were recorded in 2022, which was the coolest and driest of the three years studied. The results confirm the strong drought tolerance of Jerusalem artichoke and may support the optimization of cultivar selection and planting dates, as well as the modeling of yield potential under real and changing climatic conditions.
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