Effect of Methyl Jasmonate on some Biochemical and Physiological Parameters of Coriandrum sativum L. under Salinity Stress

An experiment was conducted to study the effect of methyl jasmonate (MJ) on salinity stress alleviation of coriander plantlet. The experiment was set up as factorial experiment in completely randomized design with two factors including NaCl concentration (0, 3 and 6 ds/m) and MJ at three levels (0, 0.25 or 0.5 mM). The results showed that salt stress decreased fresh and dry weight of aerial, concentation of potassium, K/Na ratio, carotenoid, antioxidant capacity and catalase. Parameters such as ion leakage and concentation of aerial sodium increased by salinity stress. Application of MJ decreased ion leakage and sodium of aerial, improved fresh and dry weight of aerial, K/Na ratio, antioxidant capacity and catalase. Improved stress indexes in MJ-treated plantlets showed that applied of MJ ameliorated the adverse effects of injury caused by salt stress.