The Effect of Exogenous Applications of Salicylic Acid and Molybdenum on the Tolerance of Drought in Wheat

This study investigated the effect of drought on the growth and yield components of two Iraqi wheat varieties (Tamooz 2 and Adana 99) and the effect of different concentrations of salicylic acid and molybdenum. Drought significantly decreased the growth rate and had a negative impact on the yield components in both varieties and it was confirmed that the yield and growth of Tamooz 2 variety was significantly better than Adana 99. It was demonstrated that salicylic acid and molybdenum improved the performance of both varieties of Iraqi wheat under both well- watered and drought conditions. However, salicylic acid had a better general effect than molybdenum, although the difference was not significant in some of the studied parameters. The application of salicylic acid at a relatively low concentration was shown to have the most positive impact on the physiological, yield and growth parameters. We believe that the current study could have an important practical application in the field of cereal production