Table 2.
Effect of NAA and Coconut milk on organogenesis of roots in O. umbellata L.
| Growth regulator | Concentration (mg/l) | Duration required | % of Organogenesis induction | No. Root formed |
|---|---|---|---|---|
| Control | – | – | – | |
| NAA | 0.15 | 6 weeks | 93.5 ± 0.5 | 12.5 ± 0.7c |
| 0.30 | 96.7 ± 0.7a | 6.4 ± 0.3 | ||
| 0.50 | 97.2 ± 0.9a | 10.2 ± 0.2d | ||
| 0.70 | 97.9 ± 1.6a | 16.7 ± 0.8b | ||
| 1.0 | 96.2 ± 1.8a | 17.3 ± 0.4a | ||
| CM | 0.2% | 6 weeks | 92.1 ± 1.9 | 5.4 ± 0.6 |
| 0.4% | 98.2 ± 1.8a | 9.1 ± 0.8a | ||
| 0.6% | 97.1 ± 1.2b | 8.8 ± 0.3b | ||
| NAA + CM (%) | 0.7 + 0.2% | 6 weeks | 85.6 ± 1.5 | 33.4 ± 0.6 |
| 0.7 + 0.4% | 6 weeks# | 100.0 ± 0.3a | 47.2 ± 0.2a | |
| 0.7 + 0.6% | 6 weeks# | 94.3 ± 1.1c | 32.6 ± 0.6 | |
| 1.0 + 0.2% | 6 weeks | 90.7 ± 1.1 | 38.4 ± 0.4b | |
| 1.0 + 0.4% | 6 weeks# | 95.5 ± 1.2c | 37.5 ± 0.5c | |
| 1.0 + 0.6% | 6 weeks# | 97.6 ± 1.6b | 36.2 ± 0.8c |
Values are mean ± SE, five cultures per treatment, repeated thrice. Within a column, means having the same letters are not significantly different at the 5% level according to Holm–Sidak test.