| Irradiation Dose, Gy | Relative Water Content, % | Electrical Conductivity X100, μS/cm | Acid phosphatase, µmoles PNP min−1×mg−1 protein |
| 0 | 85 ± 4 (100) | 21 ± 0.5 (100) | 4.9 ± 1.4 (100) |
| 1 | 75 ± 2 (88) | 20 ± 1.0 (95) | 3.1 ± 0.6 (63) |
| 10 | 79 ± 2 (92) | 16 ± 2.0 (76) | 2.6 ± 0.4 (53) |
| 20 | 74 ± 6 (87) | 15 ± 0.6 (71) | 2.3 ± 0.5 (46) |
| R2 | 0.33 | 0.89 | 0.583 |