Selenium has been recognized as an essential trace element for animals and humans. Although it has not been confirmed to be an essential micronutrient in plant tissues, plants play a unique role in recycling and delivering selenium from the soil to food chain. The aim of this study was to investigate the effect of foliar application of different selenium concentrations (1-50 mg Se·dm-3) on the growth, content of chloroplast pigments, anthocyanins, total phenolic compounds and selenium, as well as lipid peroxidation in sweet basil (