Grass pea (Lathyrus sativus L.) is relatively tolerant to several abiotic stresses such as salinity. Twenty-five grass genotypes provided by the Dryland Agricultural Research Institute, Maragheh, Iran, were exposed four salinity levels (0, 40, 80, 120 mM). Based on primary screen, 8 and 17 sensitive selected. Principal components analysis for showed that first explained approximately 71-80% of ...