Zinc oxide nanoparticles (ZnO-NPs) have been proven to helpfully improve plant tolerance several abiotic stresses. However, no information has reported concerning the role of ZnO-NPs on pepper plants under salinity stress. Hence, this research aimed evaluate growth and physiological responses (Capsicum annum L.) ZnO-NP foliar application salinity. Plants were subjected 0 (control), 25 (S1), 50 ...