different amount of KNO3 and NH4NO3 in MS media were tested the morphogenic of shoot length,shoot fresh weight and mutiplication rate of five potato cultivars .The growth response significantly varied with or without nitrate .The effect of NT1,NT2 and NT3 culture media on shoot was non-significant but their effect shoot fresh weight was significant .Multiplication rate a major attributing trait was not much affected either in low or high levels of nitrte media . High nitrate medi yielded higher shoot fresh weight but not significantly improved shoot length and multiplication rate.