On the other hand, data obtained revealed a substantial increase in stomata number occurred with increasing salinity levels (200 or 300 mM NaCl) as shown in Fig. 6 (a&b). David and Nobel (1979) reported that salinity can affect photosynthesis at stomata and / or mesophyll levels depending on type of salinity, duration of treatment, species and plant age. The results showed that high levels of salinity 200 or 300 mM increased the stomata number, decreasing in stomata area and mesophyll area. All these characters were responsible for the reduction in photosynthesis in kallar grass plants and were reflect as a progressive reduction in plant height, plant fresh weight as shown in Figs. 1&2.