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Stevia (Stevia rebaudiana Bert.) is well known for its high content of sweet steviol glycosides (SVglys) in its leaves (about 4–20% of dry weight) depending on the environmental, climatic, and growth conditions. The present study aimed to investigate the effects of foliar iron, selenium, and boron on stevia, irrigated with different concentrations of saline water. The experiment was conducted during two consecutive years in Firuzabad and Anzali, Iran. Results indicated that plant height, number of branches, leaf and biological yield and leaf mass ratio decreased by increasing the NaCl concentration of irrigation water. In both places, total SVglys content, and SVglys yield increased when the plants were irrigated with a 30 mM of saline water while higher salinities (90 mM) resulted in decreasing the traits. In addition, the foliar application of selenium alone and in combination with boron, and iron played a significant role …