| Treatments | Diameters (mm) | Concentration (IBA g/L) |
| 1 | 10 - 15 | 0 |
| 2 | 10 - 15 | 1.5 |
| 3 | 10 - 15 | 3.0 |
| 4 | 10 - 15 | 6.0 |
| 5 | 10 - 15 | 10.0 |
| 6 | 16 - 25 | 0 |
| 7 | 16 - 25 | 1.5 |
| 8 | 16 - 25 | 3.0 |
| 9 | 16 - 25 | 6.0 |
| 10 | 16 - 25 | 10.0 |
| 11 | 26 - 35 | 0 |
| 12 | 26 - 35 | 1.5 |
| 13 | 26 - 35 | 3.0 |
| 14 | 26 - 35 | 6.0 |
| 15 | 26 - 35 | 10.0 |