Foliar Application of ZnO Nanoparticles Enhances Plant Growth, Antioxidant Profile, and Zinc Biofortification in Portulaca oleracea L.
Zinc deficiency in agricultural soils limits food security and the nutritional quality of crops. Purslane (Portulaca oleracea L.) is a leafy vegetable of growing interest as a functional food owing to its high content of omega-3 fatty acids, minerals, and antioxidant compounds. Zinc oxide nanoparticles (ZnO-NPs) are an...