Influence of foliar application of salicylic acid (SA), ascorbic acid (AsA), proline (Pro) and their admixture on H2O2 (umolg-1 FW) and MDA contents (mmolg-1 FW) contents of sunflower grown under control and saline conditions. Different letters differ significantly (95% probability level) according to Duncan’s Multiple range test (SPSS-20).