Table 4.
Effect of various selenium levels (Na2SeO3) on antioxidant enzyme activities of superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX), and glutathione reductase (GR) of quinoa plants after 30 days of selenium treatment. Number of samples 15:5 replications and 3 biological replicates.
| Treatment Na2SeO3 mg/L |
SOD (U/mg Protein) |
CAT (U/mg Protein) |
POD (U/mg Protein) |
APX (U/mg Protein) |
GR (U/mg Protein) |
|---|---|---|---|---|---|
| 0 | 300.74 ± 2.04 | 250.99 ± 5.55 | 104.92 ± 1.70 | 112.89 ± 0.73 | 121.34 ± 0.71 |
| 2.5 | 306.70 ± 1.45 | 268.09 ± 3.84 | 109.10 ± 2.29 | 117.64 ± 1.88 | 126.86 ± 2.77 |
| 5 | 311.08 ± 1.83 | 269.33 ± 4.67 | 117.27 ± 0.33 | 124.51 ± 3.13 | 132.56 ± 1.30 |
| 10 | 320.45 ± 1.07 | 280.71 ± 4.93 | 122.34 ± 1.28 | 131.74 ± 1.30 | 139.50 ± 2.87 |
| 20 | 327.87 ± 2.31 | 284.12 ± 3.34 | 126.59 ± 0.678 | 138.02 ± 1.91 | 149.49 ± 4.13 |
| mean | 313.37 ± 10.14 | 270.65 ± 12.64 | 116.05 ± 8.42 | 124.96 ± 9.59 | 133.95 ± 10.42 |
| HSD * at p < 0.05 | 2.80 | 6.85 | 2.25 | 2.95 | 4.00 |
* HSD: an honestly significant difference at p < 0.05 probability level using Tukey’s test. Values in the table represent of means and standard deviations.