Table 4.
Interaction between cultivar, fertilization type, and irrigation regime on total polyphenol concentration and antioxidant capacity.
| Treatment | Polyphenols (mg·100 g−1 f.w.) | Antioxidant Activity (mmol Trol·100 g−1 f.w.) |
|---|---|---|
| S Ch 200 | 1623.26 ± 135.06 ab | 77.94 ± 6.48 ab |
| S Ch 300 | 1724.12 ± 151.78 ab | 71.98 ± 6.34 ab |
| S Og 200 | 1869.19 ± 146.27 a | 82.81 ± 6.48 ab |
| S Og 300 | 1423.25 ± 152.14 b | 79.63 ± 10.79 ab |
| HTP Ch 200 | 1609.27 ± 89.91 ab | 52.14 ± 2.91 b |
| HTP Ch 300 | 1686.29 ± 142.13 ab | 54.84 ± 4.62 ab |
| HTP Og 200 | 1724.27 ± 118.01 ab | 61.45 ± 4.21 ab |
| HTP Og 300 | 1806.28 ± 88.81 ab | 63.46 ± 3.12 ab |
| IB Ch 200 | 1826.26 ± 211.86 ab | 65.24 ± 7.57 ab |
| IB Ch 300 | 1744.23 ± 211.59 ab | 88.11 ± 10.69 a |
| IB Og 200 | 1768.08 ± 100.29 ab | 86.31 ± 4.90 a |
| IB Og 300 | 1868.29 ± 110.09 a | 75.54 ± 4.45 ab |
S—Siriana F1; H—HTP F1; IB—Inima de Bou; Ch—chemical; Og—organic; 200—200 m3·ha−1 (67% ET replenishment); 300—300 m3·ha−1 (100% ET replenishment). Within each column, different letters mean significant differences between the treatments, according to Tukey’s test at p ≤ 0.05.