Table 1 Metal concentration (μM) which caused 50% inhibition of root growth (I50) for the different metals used on T. goesingense and A. thaliana followed by the relative comparative tolerance index of T. goesingense for different metals.
| Nickel (μM) | Cobalt | Zinc | Cadmium | |
|---|---|---|---|---|
| Thlaspi goesingense | > 500 | 460 | > 500 | 38 |
| Arabidopsis thaliana | 80 | 56 | 98 | 13 |
| Comparative Tolerance Index (I50 Thlaspi/I50 Arabidopsis) | Ni > 6.28 | Co 8.14 | Zn > 5.09 | Cd 2.84 |