The aim of this study was to investigate the effectiveness salicylic acid (SA) treatment against white mould disease (Sclerotinia sclerotiorum) (SS) in lettuce (Lactuca sativa L.) plant. In study, two cultivars (Melina and Fuzila) were used four treatments applied plants (control, SS, SA, +SA+SS treatments). Weight (g), number marketable leaf per plant, non-marketable ratio (%), relative water ...