The concentration of Na increases as salinity level increases upto 8dS/m but at highest saline soil (12 dS/m), it suddenly decreases. It was also noteworthy that AM plants exhibited reduced Na uptake as compared to non-inoculated controls (Table 3). Maximum concentration of Na was found to be in single inoculation of G. mosseae but lower than those of non-inoculated plants. According to Hammer et al (2011), AM fungi exclude Na+ by discriminating its uptake from soil or during its transfer to plants. The accumulation of Na is strongly influenced by the available form of N (NO3 or NH4) and it may also be influenced by the synthesis and storage of polyphosphate as well as by other cations, particularly K (Giri et al.2003). High concentration of Na creates various osmotic and metabolic problems like reduced photosynthesis and protein synthesis for plants (Weissenhorn et al., 1995). It appears that the role of AM fungi in alleviating salt stress is partly to prevent Na absorption to root These findings suggest that AM fungi induce a regulatory effect on the translocation of Na+ to the aerial parts, thus maintain favorable K+: Na+ and Ca+: Na+ ratio in shoots over non-mycorrhizal plants and thus, AM fungi induce as a buffering agent on the uptake of Na+ when the content of Na+ is within the permissible limit (Allen and Cunningham, 1983).