In order to study the reaction of maize hybrids to salinity condition, an experimental was conducted at experimental field station of Agricultural and Natural Resource Research center of Qom province under Two conditions (normal and salinity stress )during the cropping season of 2006-2007.Experimental design was a randomized complete block with three replications.The hybrids were planted Two rows 6 m length, (75cm spread) containg 3 seeds/hill,60 hills (20 cm spased) in each row.After emergence in 3 to 5 leaf stage the plant density were adjusted to 60 plants per row.Trait Ear length,...