Table 3.
The interaction effect of deficit irrigation × TiO2-NPs on antioxidant enzymes activity (Ascorbate peroxidase (APX) and catalase activities (CAT)):
| Deficit irrigation | TiO2-NP (ppm) | Catalase (μmol H2O2 mg−1 protein min−1) | Ascorbate peroxidase (unit. g−1fw) |
|---|---|---|---|
| Cont. (100% FC) | 0 | 60.69ef* | 3.73e |
| 15 | 67.34bc | 4.72 cd | |
| 30 | 66.68bcd | 4.41d | |
| PRD1 | 0 | 57.48f. | 5.17bc |
| 15 | 65.44cde | 5.71a | |
| 30 | 69.99abc | 5.12bc | |
| PRD2 | 0 | 61.28def | 5.26ab |
| 15 | 58.02f. | 5.53ab | |
| 30 | 70.21abc | 5.08bc | |
| SDI | 0 | 66.50bcd | 5.57ab |
| 15 | 71.77ab | 5.48ab | |
| 30 | 75.32a | 5.76a |
*Means followed by same letters in each column does not have a significant difference based on the LSD test (p ≤ 0.01).