Table 2.
Germination index of two wheat genotypes during 4 days under control (C), drought (15%, 20% and 30% PEG), salt treatments (90, 160 and 230 mM NaCl), high voltage electrical discharge (HVED) pre-treatment (P) and combined (P-15% PEG, P-20% PEG, P-30% PEG, P-90 mM NaCl, P-160 mM NaCl and P-230 mM NaCl) treatments. Values are means of three repetitions (100 seeds/repetition) ± S.D. The different capital letters indicate significances among means of different treatments within the same genotype, while low case letters indicate significances among means between genotypes under the same treatment at p < 0.05 using LSD post hoc-test.
| Drought | Salt Treatment | ||||
|---|---|---|---|---|---|
| Bernarda | Tena | Bernarda | Tena | ||
| C | 29.54 ± 0.5 dD | 37.35 ± 0.3 cB | C | 28.86 ± 0.3 dB | 32.72 ± 0.8 dB |
| 15% PEG | 23.27 ± 0.6 dE | 25.96 ± 0.4 cE | 90 mM NaCl | 8.24 ± 0.4 cD | 7.43 ± 0.5 cE |
| 20% PEG | 10.51 ± 0.0 cG | 22.22 ± 0.5 bF | 160 mM NaCl | 1.08 ± 0.2 cE | 0.98 ± 0.2 cF |
| 30% PEG | 4.15 ± 0.1 dH | 18.42 ± 0.3 bG | 230 mM NaCl | 0.15 ± 0.1 cE | 0.19 ± 0.1 cF |
| P | 58.98 ± 0.5 aA | 53.67 ± 0.9 bA | P | 59.65 ± 0.6 aA | 53.14 ± 1.2 bA |
| P-15% PEG | 37.74 ± 0.9 aB | 33.36 ± 0.6 bC | P-90 mM NaCl | 28.83 ± 0.7 aB | 26.15 ± 0.0 bC |
| P-20% PEG | 32.15 ± 0.8 aC | 32.14 ± 1.3 aC | P-160 mM NaCl | 15.58 ± 0.3 aC | 13.45 ± 0.8 dB |
| P-30% PEG | 13.78 ± 0.1 cF | 29.19 ± 0.8 aD | P-230 mM NaCl | 1.15 ± 0.1 bE | 6.18 ± 0.0 aE |