Table 2.
Titanium concentration in the roots and Ti translocation factor (TF, ratio Ti shoots to roots) of P. sativum plants exposed to different soil treatments. Values are means ± sd (n = 4), different letters in the same column represent significant differences among the mean values (p < 0.05).
| Soil Treatments | Ti Roots (mg kg−1) | TF (Ti shoot/Ti root) × 10−3 |
|---|---|---|
| C | 420 ± 60.5 a | 13 ± 2 a |
| Ana800 | 591 ± 9.66 bc | 47 ± 8 d |
| Rut800 | 655 ± 44.5 c | 54 ± 9 d |
| Mix800 | 580 ± 70.8 bc | 38 ± 6 c |
| SMP800 | 657 ± 92.0 c | 24 ± 3 b |
C = Bs-amended soil control; Ana800 = anatase NPs; Rut800 = rutile NPs; Mix800 = mixture of anatase and rutile, 1:1 ratio; SMP800 = submicron TiO2 particles; 800 = TiO2 dose (mg/kg) in Bs-amended soil.