Table 4. Correlation coefficients (n = 30) among Cd TIs, uptake, translation, MDA, NPT in Italian ryegrass roots.
| Index | TIs | Cd concentration | TFs | Cd accumulation | MDA content | NPT content |
|---|---|---|---|---|---|---|
| Tis | 1 | |||||
| Cd concentration | −0.922** | 1 | ||||
| TFs | −0.612* | 0.635* | 1 | |||
| Cd accumulation | −0.185 | 0.293 | −0.003 | 1 | ||
| MDA content | −0.796** | 0.837** | 0.722** | 0.054 | 1 | |
| NPT content | −0.143 | 0.147 | 0.04 | 0.738** | −0.072 | 1 |
Notes:
TIs, TFs, MDA, and NPT indicate tolerance indexes, translocation factors, malondialdehyde, and non-protein thiols, respectively.
*P < 0.05, **P < 0.01.