Table 4.
Effect of different water regimes (control and drought) on physiological parameters (SPAD value, leaf relative water content, membrane stability index, canopy temperature depression, proline content and potassium (K+) ion content) of tested wheat genotypes.
| Factor | SPAD value | Leaf relative water content (%) | Membrane stability index (%) | Canopy temperature depression (°C) | Proline content (μmol g−1 fresh weight) | K+ ion content (mg g−1 fresh weight) |
|---|---|---|---|---|---|---|
| Genotype | ||||||
| BARI gom 19 | 43.1 ± 0.11 fg | 67.1 ± 0.24 fg | 60.6 ± 0.14 fg | 5.14 ± 0.09 fg | 4.35 ± 0.07 d-g | 49.5 ± 0.33 cde |
| BARI gom 20 | 42.6 ± 0.25 g | 68.4 ± 0.45 ef | 75.3 ± 0.49 cd | 4.07 ± 0.01 jk | 3.86 ± 0.09 g | 60.7 ± 0.93 a |
| BARI gom 21 | 43.5 ± 0.22 efg | 65.3 ± 0.52 g | 56.7 ± 0.69 gh | 5.71 ± 0.06 de | 4.14 ± 0.04 fg | 51.8 ± 0.67 cd |
| BARI gom 22 | 45.2 ± 0.23 bcd | 71.2 ± 0.45 cde | 62.5 ± 0.60 f | 6.09 ± 0.05 bcd | 4.91 ± 0.11 cde | 47.0 ± 0.48 d-g |
| BARI gom 23 | 42.2 ± 0.31 g | 67.4 ± 0.35 fg | 55.5 ± 0.87 h | 5.14 ± 0.10 fg | 4.40 ± 0.06 d-g | 45.5 ± 0.19 efg |
| BARI gom 24 | 44.4 ± 0.12 c-f | 67.2 ± 0.58 fg | 63.0 ± 0.59 f | 5.44 ± 0.05 ef | 4.09 ± 0.13 fg | 45.2 ± 0.68 efg |
| BARI gom 25 | 45.6 ± 0.10 bc | 58.8 ± 1.07 h | 44.2 ± 0.92 j | 5.84 ± 0.12 b-e | 4.60 ± 0.01 def | 50.2 ± 0.67 cde |
| BARI gom 26 | 46.5 ± 0.18 ab | 73.5 ± 0.34 bc | 81.1 ± 0.12 ab | 3.83 ± 0.03 kl | 4.99 ± 0.02 cd | 60.8 ± 0.53 a |
| BARI gom 27 | 44.7 ± 0.36 c-f | 68.7 ± 0.32 def | 50.8 ± 0.79 i | 6.16 ± 0.12 bc | 5.84 ± 0.20 ab | 54.2 ± 0.54 bc |
| BARI gom 28 | 43.8 ± 0.17 d-g | 64.7 ± 0.26 g | 57.7 ± 0.36 gh | 4.50 ± 0.06 hij | 5.54 ± 0.04 abc | 48.3 ± 0.84 c-f |
| BARI gom 29 | 43.2 ± 0.44 fgg | 71.7 ± 0.34 bcd | 48.6 ± 0.45 i | 8.00 ± 0.06 a | 4.48 ± 0.18 d-g | 58.3 ± 1.23 ab |
| BARI gom 30 | 44.4 ± 0.25 c-f | 74.4 ± 0.40 ab | 55.5 ± 0.99 h | 6.27 ± 0.05 b | 6.01 ± 0.23 ab | 49.5 ± 1.26 cde |
| BARI gom 31 | 44.7 ± 0.21 c-f | 68.4 ± 0.44 ef | 79.4 ± 0.47 bc | 4.14 ± 0.04 jk | 4.42 ± 0.02 d-g | 42.5 ± 0.19 fg |
| BARI gom 32 | 44.4 ± 0.33 c-f | 73.0 ± 0.37 bc | 73.1 ± 0.96 d | 4.83 ± 0.08 gh | 4.21 ± 0.06 efg | 51.2 ± 1.06 cde |
| BARI gom 33 | 47.3 ± 0.29 a | 70.8 ± 0.16 cde | 82.1 ± 0.28 ab | 3.57 ± 0.03 l | 6.23 ± 0.03 a | 60.8 ± 0.86 a |
| BAW-1147 | 44.9 ± 0.07 b-e | 76.7 ± 0.30 a | 71.9 ± 0.28 d | 5.73 ± 0.02 cde | 6.16 ± 0.06 a | 49.3 ± 0.96 cde |
| BINA gom 1 | 46.3 ± 0.25 ab | 70.7 ± 0.53 cde | 84.6 ± 0.71 a | 4.32 ± 0.05 ij | 4.09 ± 0.13 fg | 58.8 ± 1.04 ab |
| Kanchan | 44.6 ± 0.20 c-f | 72.1 ± 0.19 bc | 67.3 ± 0.55 e | 4.59 ± 0.01 hi | 5.35 ± 0.07 bc | 41.7 ± 1.94 g |
| Treatment | ||||||
| Control | 46.3 ± 0.20 a | 74.1 ± 0.30 a | 70.3 ± 0.49 a | 6.27 ± 0.05 a | 3.25 ± 0.06 b | 48.2 ± 0.49 b |
| Drought | 42.7 ± 0.26 b | 64.8 ± 0.51 b | 59.7 ± 0.65 b | 4.10 ± 0.06 b | 6.49 ± 0.11 a | 54.6 ± 1.12 a |
| Significance | ||||||
| Genotype (G) | ** | ** | ** | ** | ** | ** |
| Treatment (T) | ** | ** | ** | ** | ** | ** |
| G × T | ** | ** | ** | ** | ** | ** |
Data are means of three replications ± standard errors. Means within a column followed by different letters are significantly different based on Tukey's honest significant difference test at P ≤ 0.05. ** indicates significance at P ≤ 0.01. SPAD: soil plant analysis development.