Table 1. Effects of alone and combined stresses of drought and salinity during anthesis on yield and yield components of three barley genotype.
| Treatment | Spike length (cm) | Filled grains per spike | Unfilled grains per spike | Rate of filled grains per spike (%) | 1000 grain weight (g) | Grain yield per plant (g) |
|---|---|---|---|---|---|---|
| CM72 | ||||||
| Control | 5.83 a | 31.67 a | 5.00 b | 86.37 a | 37.95 a | 2.08 a |
| Drought | 3.57 d | 14.67 d | 11.68 a | 55.67 d | 26.97 c | 0.76 d |
| (-38.8) | (-53.7) | (+133.6) | (-35.5) | (-28.9) | (-63.5) | |
| Salinity | 5.33 b | 28.02 b | 8.01 ab | 77.77 b | 33.11 b | 1.48 b |
| (-8.57) | (-11.5) | (+60.2) | (-9.9) | (-12.8) | (-28.8) | |
| D+S | 4.51 c | 20.01 c | 10.02 a | 66.63 c | 24.54 d | 1.06 c |
| (-22.6) | (-36.8) | (+100.4) | (-22.8) | (-35.3) | (-49.1) | |
| XZ16 | ||||||
| Control | 5.77 a | 38.33 a | 3.00 a | 92.74 a | 33.84 a | 1.94 a |
| Drought | 4.27 c | 28.00 b | 4.00 a | 87.50 a | 27.28 c | 0.81 d |
| (-25.9) | (-26.9) | (+33.3) | (-5.6) | (-19.4) | (-58.2) | |
| Salinity | 4.96 b | 40.33 a | 3.33 a | 92.37 a | 30.23 b | 1.65 b |
| (-14.1) | (+5.2) | (+11.0) | (-0.4) | (-10.7) | (-14.9) | |
| D+S | 4.17 c | 30.67 b | 4.00 a | 88.46 a | 24.03 d | 0.99 c |
| (-27.7) | (-19.9) | (+33.3) | (-4.6) | (-28.9) | (-48.9) | |
| XZ5 | ||||||
| Control | 9.43 a | 75.00 a | 5.00 a | 93.75 a | 30.59 a | 2.02 a |
| Drought | 8.16 ab | 57.66 a | 10.00 a | 85.22 a | 24.26 b | 1.15 c |
| (-13.5) | (-23.1) | (+100) | (-9.1) | (-20.7) | (-43.1) | |
| Salinity | 8.53 ab | 69.00 a | 7.43 a | 90.28 a | 26.97 b | 1.60 b |
| (-9.5) | (-8.0) | (+48.6) | (-3.7) | (-11.8) | (-20.8) | |
| D+S | 7.83 b | 60.33 a | 9.67 a | 86.18 a | 22.20 c | 1.16 c |
| (-16.9) | (-19.6) | (+93.4) | (-8.1) | (-27.4) | (-42.6) |
Different letters indicate significant differences (P<0.05) among three genotypes within each treatment (n=4). Values in parenthesis are expressed as a decreased (-)/increased (+) percentage of the control