Table 3.
Changes of specific energy fluxes and phenomenological energy fluxes vs. salinity
| Salinity (mM) | Control | 50 | 100 | 150 | 200 | |
|---|---|---|---|---|---|---|
| Specific Energy Fluxes | ||||||
| ABS/RC | Pooled stages | 1.74d ±0.04 | 2.12c ±0.02 | 2.36b ±0.03 | 2.39b ±0.03 | 3.13a ±0.09 |
| TRO/RC | Veg Rep |
1.72c ±0.04 1.32d ±0.02 |
2.13b ±0.03 1.57c ±0.01 |
2.32b ±0.04 1.72b ±0.02 |
2.33b ±0.03 1.75b ±0.02 |
3.27a ±0.14 1.89a ±0.02 |
| ETO/RC | Veg Rep |
1.19b ±0.04 0.58c ±0.02 |
1.40a ±0.02 0.66b ±0.01 |
1.39a ±0.03 0.65b ±0.01 |
1.39a ±0.03 0.66b ±0.01 |
1.49a ±0.08 0.72a ±0.01 |
| REO/RC | Veg Rep |
0.97a ±0.04 0.45a ±0.02 |
1.05a ±0.01 0.43ab ±0.01 |
1.03a ±0.02 0.41bc ±0.01 |
1.03a ±0.02 0.41bc ±0.01 |
0.97a ±0.04 0.39c ±0.01 |
| DIO/RC | Pooled stages | 0.22d ±0.01 | 0.27c ±0.01 | 0.34b ±0.01 | 0.35b ±0.01 | 0.55a ±0.01 |
| Phenomenological Energy Fluxes | ||||||
| ABS/CS | Pooled stages | 3042.19d ±38.28 | 3197.63c ±22.84 | 3364.06b ±14.40 | 3402.00b ±10.06 | 3517.00a ±10.71 |
| TRO/CS | Pooled stages | 2640.06c ±39.15 | 2768.19b ±21.31 | 2862.06a ±12.68 | 2890.44a ±10.13 | 2880.13a ±11.75 |
| ETO/CS | Veg Rep |
1727.00a ±38.70 1226.50a ±38.23 |
1727.63a ±21.79 1227.88a ±21.97 |
1635.63b ±14.22 1136.75b ±14.12 |
1644.38b ±13.27 1143.38b ±13.47 |
1242.50c ±21.53 1149.50b ±13.55 |
| REO/CS | Pooled stages | 1264.88a ±44.93 | 1127.29b ±25.15 | 1035.02c ±16.42 | 1042.56c ±14.68 | 798.27d ±21.42 |
| DIO/CS | Veg Rep |
292.00e ±2.15 512.25d ±2.16 |
319.25d ±3.75 539.62c ±3.75 |
382.62c ±5.57 621.37b ±10.64 |
403.75b ±4.37 619.37b ±4.06 |
527.37a ±2.35 746.37a ±2.51 |
Within each row, means ± SE (n = 4) followed by at least one similar letter were not significantly different according to LSD (0.05) test. Since vegetative and reproductive stages behaved similarly in some parameters, they were pooled together. All the chlorophyll-a fluorescence parameters were quantified in an arbitrary unit (a.u.) or a relative unit (r.u.). ABS/RC: absorbed energy flux per RC; TRO/RC: trapped energy flux per RC; ETO/RC: electron transport flux per RC; REO/RC: reduction energy flux per RC; DIO/RC: energy dissipation as heat per RC; ABS/CS: absorbed energy flux per CS; TRO/CS: trapped energy flux per CS; ETO/CS: electron transport flux per CS; REO/CS: reduction energy flux per CS; DIO/CS: energy dissipation as heat per CS; Veg: vegetative stage; Rep: reproductive stage