reported enhanced concentration of ABA in maize leaves with increasing salinity stress in salt-tolerant compared to a salt-sensitive hybrid, as is the case in the present study higher ABA contents was observed in tolerant genotype, thus stronger relation-ship with stomatal conductance (r2= 0.7862) and lower in sensitive genotype and less strong relationship with stomatal conductance(r2= 0.5662) (Fig. 7)