ZnO synthesized at variable temperature (˚C) | Average no. of root branches | Root length (cm) |
Control (no addition) | 1.1 | 4.9 |
275 | 1.8 | 4.5 |
350 | 3.3 | 6.2 |
425 | 3.1 | 5.5 |
500 | 2.6 | 6.1 |