Effect of salicylic acid priming on lens cultivars (Lens culinaris Medik.) germination and some physiological traits under salinity conditions

In order to evalouate salicylic acid (SA) priming effects on lentil seed germination (Lens culinaris Medik.)، antioxidant enzyme activity and some physiological traites in salt stress condition، a factorial experiment was conducted at the Seed Technology Laboratory of Yasouj University in a completely randomized design with four replications. The first factor was hydropriming by distilled water and two levels of salicylic acid (0. 2 and 0. 5 mM) for 4 hr and the control without priming. The second was five levels of salinities (0، 50، 100، 150 and 200 mM NaCl) equal to (0، 5، 10، 15 and 20 ds. m-1) and the last one three cultivars of lens (Ghachsaran، Kermanshah and Kimiya). After germination، germination persentage، root and shoot length، dry weight، catalas، polyphenoloxidas and peroxidas activity، MDA and proline were measured. The results showed that the salinity decreased seed germination. Influence of SA was signification and increased percent of germination in the stressed and control treatments. Enzymes activity assay showed that enzyme activity was increased under salt stress conditions and SA reduced activity of antioxidant enzyme by decreasing the salinity effects. Kermanshah cultivar had more tolerance than other cultivars with respect to salinity stress.