Effect of Water Stress on the Yield of Indeterminate-Growth Green Bean Cultivars (Phaseolus vulgaris L.) during the Autumn Cycle in Southern Spain

Common bean is typically cultivated in the Mediterranean basin, an area where water scarcity could limit yield. This species has a broad range of food uses (seed or pod) and very diverse growth patterns (indeterminate determinate), which hinders any deficit irrigation strategy. The aim this work was to evaluate response vegetative reproductive stages stress beans indeterminate habit. During two consecutive Autumn seasons (2020 2021), cultivars green were grown greenhouse Seville (Spain). experimental design split plot with four replications. One factors considered Helda, Perfección Blanca; other strategy: control treatment, received 100% crop evapotranspiration, regulated (RDI) 30% applied control. In both seasons, significant differences found between cultivars, but only reduced branch development around 50%. Reproductive not markedly affected, although clear diminishing trend approximately 25% measured P. Pod length number non-commercial pods importantly impacted by cultivars. Moderate conditions did reduce quality quantity Therefore, current strategy increase savings low no yield reduction.