Interactive effect of priming agent and pearl millet cultivars on the leaf area per plant (cm2) at various days intervals; The values reported are means of 3 replicates. Error bars represent standard error of mean (SE). P1 = Control (No-Priming); P2 = Hydro-priming (48 h); P3 = Ascorbate (40 mg L-1); P4 = CaCl2 (100 mg L-1).