American Journal of Plant Physiology1557-45391557-4547Academic Journals Inc.10.3923/ajpp.2006.41.53MisraNeelam Saquib AnsariMohd. Kumar GuptaAjay 1200611Salinity stress affects the metabolism of plant cells leading to severe crop damage and loss of yield. Oxidative stress is one of the major causes of salinity that may be responsible for the tissue damage. The present endeavor is based on the immediate responses on enzymatic and non-enzymatic to salinity-induced oxidative stress in two high yielding green gram (Phaseolus aureus) cvs. salt tolerant (T-44) and salt sensitive (SML-32). Under salinity stress, the salt tolerant cv. T-44 showed the higher activity of ROS scavenging enzyme, catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), Glutathione Reductase (GR), glutathione-S-transferase (GST) and enhanced levels of ascorbate (ASC) and glutathione (GSH), than the sensitive cv. SML-32. 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