Drought stress poses a formidable abiotic challenge that severely curtails crop productivity. This study evaluated the effectiveness of foliar-applied nanochelated iron (nanochelated-Fe) compared to ionic Fe²⁺ in kidney bean ( Phaseolus vulgaris L.) under both nondrought and drought conditions. A one-year field trial was performed following a randomized complete block design consisting of three replicates (six plants per treat...

Drought stress can have severe consequences on global food production, exacerbating food insecurity. We evaluated potential hermetic effects (low-dose stimulation and high-dose toxicity) of foliar-applied copper oxide nanoparticles (CuONPs) on the aerial and below-ground architecture, seed biomass and Cu biouptake in soybean ( Glycine max L.) under drought stress, and compared with CuSO 4 treatment and untreated control, in a...