Table 6.
Effect of aspartic acid (Asp) on 2,2-diphenyl-1-picrylhydrazyl-free radical scavenging assay (DPPH%) and 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) enzymatic assay (ABTS%) in wheat plants grown under salt stress (NaCl) for 60 days.
| Treatment | DPPH | ABTS | |
|---|---|---|---|
| (%) | |||
| NaCl (mM) | |||
| 0 | 59.3† a | 35.3 c | |
| 30 | 53.5 b | 40.4 b | |
| 60 | 45.5 c | 45.5 a | |
| Asp (mM) | |||
| 0.0 | 49.6 d | 37.1 d | |
| 0.4 | 52.9 c | 39.3 c | |
| 0.6 | 53.5 b | 42.0 b | |
| 0.8 | 55.1 a | 43.1 a | |
| NaCl (mM) | Asp (mM) | ||
| 0 | 0.0 | 54.4 cd | 33.1 e |
| 0 | 0.4 | 58.8 b | 34.3 e |
| 0 | 0.6 | 61.6 a | 37.1 d |
| 0 | 0.8 | 62.5 a | 36.6 d |
| 30 | 0.0 | 50.5 e | 34.7 e |
| 30 | 0.4 | 54.6 c | 38.2 d |
| 30 | 0.6 | 53.4 d | 41.7 c |
| 30 | 0.8 | 55.3 c | 46.9 ab |
| 60 | 0.0 | 44.0 h | 43.3 c |
| 60 | 0.4 | 45.2 gh | 45.3 b |
| 60 | 0.6 | 45.4 g | 47.4 a |
| 60 | 0.8 | 47.4 f | 45.9 ab |
†Mean values within the same column for each trait with the same lower-case letter are not significantly different according to Tukey’s honestly significant difference (HSD) test at p ≤ 0.05. Measurements were done after 75 days after sowing.