Table 3 Effect of different concentrations of kaolin or K2SO4 under different levels of water holding capacity on photosynthetic pigments (μg/g fresh weight) of wheat plants after 75 days from sowing (combined analysis of two seasons)
WHC (%) | Treatment | Chl a | Chl b | Carotenoids | Total pigments |
|---|---|---|---|---|---|
80% | Control | 11.63 | 12.05 | 3.63 | 27.31 |
Kaolin 3% | 11.60 | 12.17 | 3.44 | 27.21 | |
Kaolin 6% | 14.25 | 13.25 | 3.33 | 30.84 | |
K2SO4 (100 mg/l) | 14.46 | 10.96 | 4.06 | 29.48 | |
K2SO4 (200 mg/l) | 14.54 | 10.15 | 4.08 | 28.77 | |
60% | Control | 12.59 | 9.51 | 4.29 | 26.39 |
Kaolin 3% | 14.50 | 10.18 | 4.12 | 28.80 | |
Kaolin 6% | 14.53 | 9.30 | 4.27 | 28.10 | |
K2SO4 (100 mg/l) | 14.36 | 8.69 | 4.39 | 27.45 | |
K2SO4 (200 mg/l) | 14.52 | 9.49 | 4.36 | 28.36 | |
40% | Control | 10.53 | 7.45 | 4.79 | 22.77 |
Kaolin 3% | 12.07 | 7.88 | 4.51 | 24.46 | |
Kaolin 6% | 13.60 | 7.32 | 4.96 | 25.88 | |
K2SO4 (100 mg/l) | 12.61 | 8.53 | 4.53 | 25.67 | |
K2SO4 (200 mg/l) | 13.64 | 8.42 | 4.49 | 26.55 | |
LSD at 5% | 0.21 | 0.26 | 0.19 | 0.35 | |