3 shows that the optimal concentration of NAA to induce rooting is 0.5 mg/l, where 2.833
roots as an average were initiated at each shoot (Fig.5. E and F), and there was no significant
differences when compared with control treatment. A comparable number of roots were also
developed at 1.0 and 3.0 mg/l NAA level, however, no significant differences where observed
between them. Other NAA concentration (i.e. 2.0 mg/l) also stimulated rooting to a lesser extent and
significant differences were comparable to the control and other treatment. As for root length, it was
observed that an inverse relation was existed between NAA concentration and root length. Best root
length was (8.218 cm) achieved at control treatment; this increase in length over the NAA treatment
was not significant when comparable to the NAA treatment except 2.0 mg/l NAA was (1.020 cm)