| Mineral solution | % of explants without reaction | % of callogenous explants | Comments on the development of calluses |
| SH | 40.0b | 26.7a | Green callus, compact, friable and not very developed (0.4 - 0.5 cm) |
| MS | 50.0b | 22.2a | White callus, compact, hard and undeveloped (0.3 - 0.5 cm) |
| WPM | 3.3a | 90.0b | Green white callus, compact, friable and well developed (0.7 - 1.1 cm) |