Table 2.
Effects of different drought stress induced by polyethylene glycol (PEG-6000) treatments on the Cadmium (Cd) concentrations and transfer coefficients of XM (high-grain Cd-accumulating genotype) and YM (low-grain Cd-accumulating genotype) under 100 µmol L−1 of Cd stress.
| Treatment | Cd Concentration (mg kg−1) | Translocation Factor | |
|---|---|---|---|
| Roots | Shoots | ||
| Cd-only XM | 182.137 ± 3.038 a | 94.485 ± 4.129 b | 0.519 |
| Cd-only YM | 186.217 ± 3.482 a | 105.840 ± 4.492 a | 0.568 |
| Cd + 5% PEG-6000-XM | 140.981 ± 8.167 c | 46.808 ± 2.823 d | 0.332 |
| Cd + 5% PEG-6000-YM | 162.916 ± 3.535 b | 45.647 ± 0.487 d | 0.280 |
| Cd + 10% PEG-6000-XM | 86.234 ± 2.760 e | 35.343 ± 4.040 e | 0.410 |
| Cd + 10% PEG-6000-YM | 97.201 ± 1.104 d | 55.173 ± 1.081 c | 0.568 |
| Cd + 15% PEG-6000-XM | 67.679 ± 1.945 f | 20.123 ± 1.852 f | 0.297 |
| Cd + 15% PEG-6000-YM | 61.636 ± 4.083 f | 20.565 ± 0.513 f | 0.334 |
| Significance based on two-way ANOVA (p-value) | |||
| Varieties | 0.000 | 0.000 | 0.000 |
| Stress Level | 0.000 | 0.000 | 0.000 |
| Varieties * Stress Level | 0.000 | 0.000 | 0.000 |
The different letters indicate significant differences at p < 0.05 according to a least significant difference (LSD) test. * means the interaction between Varieties and Stress level.