| Foliar spray | Plant height (cm) | No. of leaves | Stem diameter (cm) | Leaf area (cm2) | Fresh weight (g/plant) | Dry weight (g/plant) | ||||
| Stem | Leaves | Total | Stem | Leaves | Total | |||||
| 1. Tap water | 88 | 6.4 | 1.36 | 891 | 37.4 | 15.2 | 52.6 | 14.5 | 9.0 | 23.5 |
| 2. Ascorbic acid (150 ppm) | 102 | 7.8 | 1.71 | 1162 | 41.2 | 19.7 | 60.9 | 16.9 | 11.4 | 28.3 |
| 3. Trt. 2 + ZnSO4 (200 ppm) | 116 | 8.0 | 1.80 | 1089 | 52.5 | 20.3 | 72.8 | 22.0 | 11.5 | 33.5 |
| LSD (P ≤ 0.05) | 19 | 1.1 | N.S | 250 | N.S | N.S | N.S | N.S | N.S | 9.8 |