Table 2.
Effect of l-Glutamic acid (l-Glu) on the level of leaf, shoot and root Na+, K+ and Na+/K+ ratio in lentil seedlings under salt stress and recovery conditions. The above mean (±SE) was calculated from three replications. Values of different letters indicate statistically significant differences at p ≤ 0.05 (Fisher’s LSD test).
| Treatment | Leaf | Shoot | Root | |
|---|---|---|---|---|
| Na+ content (µmol g−1 DW) | C | 9 ± 0.8 c | 21 ± 0.6 c | 20 ± 11 d |
| l-Glu | 21 ± 0.6 c | 31 ± 1 c | 145 ± 7 c | |
| S | 1000 ± 28 a | 1018 ± 22 a | 1096 ± 14 a | |
| S + l-Glu | 671 ± 26 b | 691 ± 35 b | 736 ± 45 b | |
| K+ content (µmol g−1 DW) | C | 315 ± 13 b | 505 ± 11 a | 377 ± 17 b |
| l-Glu | 342 ± 25 b | 479 ± 9 a | 489 ± 13 a | |
| S | 524 ± 6 a | 211 ± 14 c | 206 ± 11 c | |
| S + l-Glu | 539 ± 7 a | 361 ± 8 b | 344 ± 12 b | |
| Na+/K+ ratio | C | 0.03 ± 0.004 c | 0.04 ± 0.002 c | 0.06 ± 0.03 c |
| l-Glu | 0.06 ± 0.004 c | 0.07 ± 0.001 c | 0.3 ± 0.02 c | |
| S | 1.9 ± 0.04 a | 4.9 ± 0.4 a | 5.4 ± 0.3 a | |
| S + l-Glu | 1.3 ± 0.05 b | 1.9 ± 0.1 b | 2.2 ± 0.07 b |