| Gamma irradiation | No. of roots plant−1 | Root length plant−1 (cm) | Dry weight of shoot plant−1 (g) | Dry weight of root plant−1 (g) | Total dry matter plant−1 (g) |
| G0 G1 G2 G3 | 13.0c 17.2a 15.8b 12.0d | 13.7c 15.1a 14.4b 12.3d | 4.4b 4.6a 4.5ab 3.8c | 0.46d 0.58a 0.55b 0.47c | 4.8b 5.2a 5.0ab 4.3c |