 The study found that exogenous salicylic acid SA application significantly enhanced the salinity tolerance of grapevine CV siltana by reducing now plus slash K plus ratio, leaf electrolyte leakage, MD and H2O2 values, promoting proline content and enzymatic activities, POD, APX, CAT and SOD, indicating that SA application at salinity conditions could be a promising method for increasing the salinity tolerance of siltana grapes. This article was authored by Midiore I, Ghulamre Zagwari, Sema Penahirad and others.