Morpho-Physiological Characteristics in Sorghum bicolor L

Na SO induced regulation of some key morpho-physiological characteristics in Sorghum were 2 4 examined to investigate the effect of Na SO on germination and morphology of Sorghum that was conducted 2 4 at Botany Department University of Gujrat. The variety used in this experiment was SSG-77. Plants were subjected for 30 days to sand culture that were salinized with four salt levels [T (control), T (50mM), T 0 1 2 (100mM) and T (15 mM) Na SO ]. The morpho-physiological parameters of Sorghum plants which were studied 3 2 4 include dry shoot and root weights of 1 harvest and root length, shoot length, leaf area, root fresh weight, st shoot fresh weight, photosynthetic rate (A), transpiration rate (E), substomatal CO concentration (Ci) and 2 stomatal concentration (gs) of 2 harvest. Salt stress significantly reduced the root length, shoot length, shoot nd and root fresh weights, photosynthetic rate (A) and transpiration rate (E). A slight reduction in both substomatmal CO concentration (Ci) and stomatal conductance (gs) was also observed under saline condition. 2 It was concluded that Na SO had diminution effects for all growth and physiological parameters of sorghum, 2 4 all these attributes decreased with the increase in salinity levels.