Table 3 Effect of water stress on wheat leaf area index (LAI), yield components, and water use efficiency (WUE) at various growth stages [55]
Parameter | Timing of water stress | |||
|---|---|---|---|---|
Control | Pre-anthesis | Anthesis | Grain filling | |
LAI at booting | 5.00 | 3.30 | 5.00 | 5.00 |
Fertile tillers.m−2 | 513 | 658 | 434 | 435 |
Grains/spike | 32.7 | 13 | 27.1 | 31.4 |
1000 grain weight (g) | 56.3 | 55.2 | 53.7 | 49.2 |
Grain yield (g.m−2) | 779 | 559 | 498 | 658 |
Harvest index | 0.52 | 0.50 | 0.53 | 0.53 |
WUE (kg grain/ha mmET) | 16.8 | 14.6 | 12.4 | 15.2 |