Table 2 Effect of different concentrations of kaolin or K2SO4 under different levels of water holding capacity on morphological criteria and area of stomata (upper and lower epidermis) of wheat plants after 75 days from sowing combined analysis of two seasons)
WHC (%) | Treatment | Plant height (cm) | Leaf no./tiller | Tiller Fr. wt. (g) | Tiller Dr. wt. (g) | Amount of water (g) | Stomatal area μm2 | |
|---|---|---|---|---|---|---|---|---|
Upper | Lower | |||||||
80% | Control | 52.63 | 5.33 | 3.542 | 0.981 | 2.561 | 166 | 100 |
Kaolin 3% | 54.52 | 5.50 | 5.121 | 1.238 | 3.883 | 154 | 96 | |
Kaolin 6% | 62.66 | 6.33 | 6.523 | 1.265 | 5.258 | 131 | 123 | |
K2SO4 (100 mg/l) | 69.23 | 6.00 | 6.306 | 1.220 | 5. 086 | 200 | 105 | |
K2SO4 (200 mg/l) | 65.70 | 6.00 | 6.490 | 1.300 | 5.190 | 183 | 90 | |
60% | Control | 57.63 | 5.03 | 3.422 | 0.953 | 2.469 | 118 | 64 |
Kaolin 3% | 59.54 | 6.00 | 5.401 | 1.088 | 4.313 | 110 | 73 | |
Kaolin 6% | 58.30 | 5.33 | 5.660 | 1.185 | 4.475 | 92 | 54 | |
K2SO4 (100 mg/l) | 64.77 | 5.67 | 5.583 | 1.131 | 4.452 | 108 | 85 | |
K2SO4 (200 mg/l) | 62.00 | 5.67 | 5.784 | 1.268 | 4.516 | 69 | 42 | |
40% | Control | 55.67 | 4.69 | 3.117 | 0.792 | 2.325 | 29 | 26 |
Kaolin 3% | 64.53 | 5.33 | 4.405 | 0.834 | 3.571 | 38 | 31 | |
Kaolin 6% | 64.23 | 5.67 | 4.483 | 0.882 | 3.601 | 36 | 28 | |
K2SO4 (100 mg/l) | 59.90 | 5.80 | 4.461 | 0.848 | 3.613 | 64 | 44 | |
K2SO4 (200 mg/l) | 61.67 | 5.83 | 4.620 | 0.893 | 3.727 | 35 | 28 | |
LSD at 5% | 0.07 | 0.10 | 0.071 | 0.071 | 0.033 | 0.041 | 3.90 | |