Table 2.
Analysis of variance (mean squares), mean values, and percentage change in biochemical and physiological traits in the studied Elymus species and wheat cultivars.
| Source of variation | DF | MGT | GI | GP | SS | PC | PRC | Chla | Chlb | Tchl | POD | SOD |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant materials (MS) | 9 | 37.67*** | 12.87*** | 7028.2*** | 50.3NS | 21.6NS | 295.3** | 2.05*** | 0.45* | 3.491*** | 14474.4NS | 34451.9*** |
| Drought stress (MS) | 2 | 6.62NS | 0.29NS | 441.6NS | 89.9NS | 58.1* | 446.4* | 5.03*** | 0.65* | 9.33*** | 7578.5NS | 9704.7NS |
| Drought stress x plant materials (MS) | 18 | 1.65NS | 2.00NS | 319.6NS | 12.3NS | 5.2NS | 81.9NS | 0.34NS | 0.45NS | 0.39NS | 1450.7NS | 944.1NS |
| Error | 58 | 6.65 | 1.79 | 226.4 | 41.7 | 14.4 | 100.8 | 0.50 | 0.188 | 0.72 | 8666.9 | 5683.9 |
| Control (MV) | 4.08 | 2.69 | 73.8 | 12.1 | 29.1 | 20.4 | 1.64 | 0.72 | 2.36 | 109.45 | 57.75 | |
| Moderate drought stress (MV) | 4.22 | 2.85 | 74.78 | 10.2 | 27.0 | 24.2 | 1.07 | 0.50 | 1.58 | 123.07 | 82.46 | |
| Severe drought stress (MV) | 4.95 | 2.87 | 67.7 | 8.7 | 26.4 | 28.2 | 0.84 | 0.43 | 1.28 | 141.14 | 92.75 | |
| %age change due to moderate stress | – 3.31 | – 5.95 | – 1.3 | 16.1 | 7.1 | – 18.4 | 34.52 | 29.80 | 33.05 | – 12.44 | – 42.79 | |
| %age change due to severe stress | – 21.36 | – 6.66 | 8.3 | 28.5 | 9.1 | – 37.7 | 48.62 | 39.41 | 45.82 | – 28.95 | – 60.59 |
Where; *, ** and *** depict statistical significance at the 0.05, 0.01 and 0.001 probability level; NS, non-significant; MS, mean squares; MV, mean values.
MGT, Mean germination time; GI, Germination index; GP, Germination percentage; SS, Soluble sugar; PC, Protein contents; PRC, Proline contents; Chla, Chlorophyll a; Chlb, Chlorophyll b; TChl, Total chlorophyll; POD, Peroxidase activity; SOD, Superoxide dismutase activity.