 Iron nanoparticles, FENPs, are effective in improving drought tolerance in canola plants. FENPs increase the plant's ability to cope with drought stress by reducing the damage caused by free radicals, increasing the levels of compatible osmolites, and inducing enzyme activities involved in energy production and antioxidant defences. Additionally, FENPs promote the synthesis of secondary metabolites, such as phenols and flavonoids, which further enhances the plant's resistance to drought stress. This article was authored by Mariam Rezaian, Vahid Niknam, and Mariam Arableu.