Abstract : An experiment was conducted to study the effect on gibberellic acid (GA3) and naphthalene acetic acid (NAA) on pollen viability, germination and pollen tube elongation of two male date palm cultivars "Ghanami akhdar" and "Jarvis", Different level of each GA3 (10, 50 and 100 mg L-1 ) and NAA (1, 2 and 3 mg L -1) were used.