In order to investigate the effects of nitrogen rates that applied on mother plants, on the germination and early seedling growth of produced seeds of wheat vc. Gascogen in the salinity stress, both field and laboratory experiments were carried out. Field experiment was conducted at Complete Randomized Block Design with four replicates and four levels of 0, 120, 240 and 360 kg/ha urea. Experimental design at laboratory was two factors factorial (4×5) arranged in a Completely Randomized Design with 4 replicates of 25 seeds. First factor consists levels of salinity (0, 121.5, 243, 364.5 and 486 mMolal NaCl that gives 0, -0.4, -0.8, -1.2, -1.6 MPa water potential respectively) and the second one levels of nitrogen on mother plants. Germination rate, germination percentages, root and shoot length and dry weight, root number and abnormal seedlings were studied. Significantly effect of salinity stress and nitrogen was observed. Salinity reduced significantly percentage and rate of germination, root and shoot length and dry weights. The effect of nitrogen rates on the germination characteristics in salinity was negative, to some extent. Interaction results showed that, the effects of nitrogen rates at low salinity levels was positive or ineffective, while at high levels of salinity the seeds produced at high nitrogen levels on the mother plants were more sensitive to salinity stress.

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