The results once again showed the supremacy of ½
MS + 0.2 mg/l IBA as compared to all other treatments as
it produced significantly maximum number of roots per
plantlet (16.0) and longest roots (11.0 cm). It was
followed by ½ MS + 0.2 mg/l NAA and ½ MS + 0.2 mg/l
IAA with an average of 15.0 and 14.3 roots per plantlet
and 10.6 and 10.0 cm long roots, respectively (Figures 5
and 6). The least response was reported in ½ MS + 0.1
mg/l IAA and ½ MS + 0.5 mg/l IAA with an average
number of 7.8 and 8.9 roots per plantlets; 7.7 and 7.2 cm
long roots, respectively. The results showed that the
lowest (0.1 mg/l) and the highest (0.5 mg/l) concentrations
of IAA used, had shown the least response
towards all the parameters regarding rooting. Our results
are confirmed by the findings of Hoque et al. (1998) who
reported that in case of in vitro rooting; best response
was obtained when micro-shoots were cultured on half
strength MS medium supplemented with 0.2 mg/l IBA, in
chrysanthemum. Similarly, Karim et al. (2002) also
declared that the maximum length of roots were recorded
in half strength MS medium supplemented with 0.2 mg/l
IBA, chased by 0.2 mg/l NAA.