| 2,4-D (mg/L) | NAA (mg/L) | % of explants induce callus formation (%) | Days of callus formation | Callus scoring |
| 0.2 | 0.2 | 20 ± 4.5 | 95 | ++++ |
| 0.5 | 15 ± 1.2 | 100 | +++ | |
| 1.0 | 13 ± 1.6 | 100 | + | |
| 2.0 | 0 | − | − | |
| 0.5 | 0.2 | 11 ± 2.3 | 95 | +++ |
| 0.5 | 10 ± 1.0 | 95 | ++ | |
| 1.0 | 0.5 ± 0.1 | 100 | + | |
| 2.0 | 0.5 ± 0.1 | 100 | + | |
| 1.0 | 0.2 | 10 ± 2.1 | 95 | ++ |
| 0.5 | 5 ± 0.7 | 100 | ++ | |
| 1.0 | 0.5 ± 0.1 | 100 | + | |
| 2.0 | 0.5 ± 0.1 | 110 | − | |
| 2.0 | 0.2 | 5 ± 0.9 | 100 | + |
| 0.5 | 5 ± 0.5 | 100 | + | |
| 1.0 | 1 ± 0.5 | 120 | + | |
| 2.0 | 0 | − | − |