Table 2. The effect of biochar on plant height (PH, cm), spike length (SL, cm), number of grains per spike (NGPS), 1000-grain weight (GW, g), grain yield (GY, g pot-1), biological yield (BY, g pot-1), harvest index (HI) of wheat under drought stress.
| Treatments | BC Application | PH | SL | NGPS | GW | GY | BY |
|---|---|---|---|---|---|---|---|
| CK | BC 0 | 60.66 b | 9.94 b | 33.67 bc | 30.67 c | 6.93 a | 15.20 b |
| BC 1 | 63.66 ab | 11.07 a | 35.67 b | 33.00 b | 7.23 a | 15.82 ab | |
| BC 2 | 66.67 a | 11.56 a | 38.67 a | 35.33 a | 7.56 a | 16.26 a | |
| DTS | BC 0 | 38.00 h | 7.10 h | 27.67 ef | 25.50 fg | 5.36 cde | 11.50 def |
| BC 1 | 41.33 g | 7.76 fg | 30.33 d | 27.67 de | 5.70 bcd | 12.25 cde | |
| BC 2 | 46.00 ef | 8.33 de | 33.00 c | 29.00 d | 6.13 b | 12,77 c | |
| DFS | BC 0 | 32.33 i | 6.96 h | 28.00 ef | 24.67 g | 5.46 bcde | 11.40 ef |
| BC 1 | 44.33 fg | 8.03 ef | 30.33 d | 26.33 ef | 5.73 bcd | 12.17 cde | |
| BC 2 | 49.00 df | 8.53 cde | 33.33 c | 27.56 de | 5.93 bc | 12.44 cd | |
| DGFS | BC 0 | 36.67 h | 7.23 gh | 26.33 f | 23.00 h | 4.96 e | 10.50 f |
| BC 1 | 51.00 d | 8.67 cd | 27.67 ef | 25.00 fg | 5.23 de | 11.08 f | |
| BC 2 | 54.67 c | 9.03 c | 29.33 de | 26.33 ef | 5.90 bcd | 12.50 cd | |
| LSD (p < 0.05) | 3.07 | 0.56 | 2.24 | 1.57 | 0.67 | 1.02 | |
CK, DTS, DFS and DGFS indicates control, drought at tillering, flowering and grain filling stages respectively. BC0, BC1 and BC2 indicates control, 3% and 5% biochar respectively. Means sharing the same letter case are not significantly different at 5% probability level.