Table 3.
Fruit quality traits (TA, titratable acidity; CI, color index; TAC, total anthocyanin content; AA, ascorbic acid in the pulp) as affected by biostimulants and growth season.
| TA (g L-1) | CI | TAC (mg CGE 100 g-1 DW) | AA (mg 100 g-1 DW) | |
|---|---|---|---|---|
| Treatment | ||||
| CON | 6.16 ± 0.231 | 12.54 ± 1.51 | 58.07 ± 8.37 | 19.56 ± 3.86 |
| HAL | 6.86 ± 0.20 | 13.91 ± 1.95 | 75.05 ± 12.79 | 20.49 ± 4.33 |
| APH | 6.54 ± 0.29 | 31.15 ± 2.17*** | 125.50 ± 12.89*** | 15.76 ± 2.62 |
| SEA | 6.93 ± 0.32 | 31.44 ± 2.27*** | 186.11 ± 9.29*** | 16.25 ± 2.28 |
| SPI | 7.30 ± 0.12 | 16.49 ± 2.32 | 126.26 ± 12.02*** | 16.33 ± 2.94 |
| MAA | 6.74 ± 0.35 | 13.61 ± 2.02 | 74.73 ± 6.90 | 20.43 ± 3.70 |
| PHE | 6.98 ± 0.17 | 21.35 ± 3.40 | 106.84 ± 15.59** | 19.09 ± 3.25 |
| ZIN | 6.81 ± 0.27 | 20.99 ± 2.37 | 113.76 ± 19.16** | 20.12 ± 4.26 |
| VIT | 7.14 ± 0.38 | 22.67 ± 3.76* | 137.92 ± 10.57*** | 14.07 ± 2.21 |
| CHI | 6.18 ± 0.90 | 21.31 ± 2.21 | 124.68 ± 14.37*** | 15.94 ± 2.71 |
| SIL | 6.65 ± 0.31 | 15.84 ± 2.42 | 78.59 ± 8.57 | 21.76 ± 4.90 |
| Significance | ns | *** | *** | ns |
| Year | ||||
| 2016 | 7.26 ± 0.15 | 20.38 ± 2.65 | 126.31 ± 13.33 | 25.53 ± 2.98 |
| 2017 | 6.24 ± 0.44 | 19.85 ± 3.73 | 93.24 ± 18.42 | 10.80 ± 0.66 |
| Significance | *** | ns | *** | *** |
| T × Y | ns | ns | ns | ns |
1Mean ± SE. Values followed by asterisk indicate significant differences between a single treatment group and control group, according to Dunnett’s test (n = 4). ***P < 0.001; **P < 0.01; *P < 0.05, ns, not significant.