Table 6. Effect of 100 mM NaCl with or without glutathione, ascorbic acid, or amino acid mixture on photosynthetic pigments of two barley cultivars at the seedling stage.
| Treatments | Chlorophyll a | Chlorophyll b | Carotenoids | |||
|---|---|---|---|---|---|---|
| G124 | G119 | G 124 | G119 | G 124 | G119 | |
| Control | 0.17±0.0 | 0.21±0.0 | 0.33±0.0 | 0.25±0.0 | 0.14±0.0 | 0.11±0.0 |
| NaCl | 0.13±0.0 | 0.11±0.0 | 0.09±0.0 | 0.12±0.0 | 0.20±0.0 | 0.21±0.0 |
| Glutathione | 0.19±0.0 | 0.13±0.0 | 0.22±0.0 | 0.13±0.0 | 0.09±0.0 | 0.17±0.0 |
| Glutathione plus salt | 0.20±0.0 | 0.17±0.0 | 0.14±0.0 | 0.14±0.0 | 0.13±0.0 | 0.15±0.0 |
| Ascorbic acid | 0.22±0.0 | 0.18±0.0 | 0.12±0.0 | 0.19±0.0 | 0.10±0.0 | 0.14±0.0 |
| Ascorbic acid plus salt | 0.21±0.0 | 0.19±0.0 | 0.18±0.0 | 0.27±0.0 | 0.15±0.0 | 0.32±0.0 |
| Amino acid mixtures | 0.14±0.0 | 0.17±0.0 | 0.12±0.0 | 0.33±0.0 | 0.12±0.0 | 0.28±0.0 |
| Amino acids plus salt | 0.13±0.0 | 0.18±0.0 | 0.11±0.0 | 0.30±0.0 | 0.13±0.0 | 0.30±0.0 |
| F | 53.91 | 3284.81 | 1212.78 | 2082.19 | 2459.19 | 135.57 |
| P | ** | ** | ** | ** | ** | ** |
| LSD | 0.02 | 1.69 | 6.76 | 5.43 | 1.93 | 0.020 |
**
Highly significant at P≤0.01.