In case of callus production from the renowned species of genus Ocimum, the great
successfulness for sweet basil (O. basilicum) was accomplished by culturing leaf explant on
MS medium supplemented with 3.7 mg/l TDZ (thidiazuron) [8] or 1 mg/l NAA (α-
naphthaleneacetic acid) combined with 1 mg/l BA [9] or 2 mg/l 2,4-D (2,4-
dichlorophenoxyacetic acid) [10] while holy basil (O. sanctum) required 3 mg/L picloram
[11] or 1 mg/l 2,4-D in combinantion with 0.1 mg/l kinetin [12], [13] for the same explant
and basal medium.