Table 3.
Significance of the main factors (nutrient solution, biostimulant and salinity) and their interactions on content of ascorbate (Asc), Dehydroascorbate (DHA), DHA:Asc, reduced glutathione (GSH), oxidized glutathione (GSSG) and GSSG:GSH in leaves of MicroTom plants. Experimental design is as in Table 1.
| Asc | DHA | DHA/Asc | Glut Rid | GSSG | GSSG:GSH | |
|---|---|---|---|---|---|---|
| nmol g−1 FW | nmol g−1 FW | nmol g−1 FW | nmol g−1 FW | |||
| Nutrient solution (N) | ns | ** | *** | * | ns | ns |
| 100% BNS | 9.30 | 2.68 a | 0.31 a | 242.91 a | 148.01 | 0.66 |
| 70% BNS | 10.10 | 2.13 b | 0.22 b | 223.87 b | 140.41 | 0.67 |
| Biostimulant (B) | * | *** | *** | *** | ns | *** |
| Control | 9.95 ab | 1.60 b | 0.17 b | 204.19 b | 152.78 | 0.75 a |
| Rygex | 10.53 a | 1.72 b | 0.17 b | 175.87 c | 138.71 | 0.79 a |
| Superfifty | 8.62 b | 3.90 a | 0.45 a | 320.11 a | 141.14 | 0.44 b |
| Salinity (S) | ns | *** | *** | ** | ns | * |
| S0 | 9.04 | 3.02 a | 0.35 a | 257.69 a | 147.71 | 0.62 b |
| S1 | 10.54 | 2.06 b | 0.21 b | 225.02 b | 141.15 | 0.67 ab |
| S2 | 9.52 | 2.12 b | 0.23 b | 217.45 b | 143.78 | 0.70 a |
| NxB | ns | *** | *** | * | ns | ns |
| NxS | ns | ns | ns | ns | ns | ns |
| BxS | ns | *** | *** | ns | * | ns |
| NxBxS | ns | ns | ns | ns | ns | ns |
| 100% Control S0 | 8.08 | 1.62 | 0.20 | 207.9 | 146.4 | 0.70 |
| 100% Control S1 | 11.05 | 1.55 | 0.15 | 211.2 | 158.6 | 0.75 |
| 100% Control S2 | 9.71 | 1.56 | 0.17 | 178.7 | 131.9 | 0.74 |
| 100% Rygex S0 | 8.91 | 1.59 | 0.18 | 180.6 | 133.7 | 0.74 |
| 100% Rygex S1 | 11.57 | 1.63 | 0.15 | 193.6 | 154.7 | 0.81 |
| 100% Rygex S2 | 8.93 | 1.55 | 0.18 | 172.0 | 148.7 | 0.84 |
| 100% Superfifty S0 | 8.47 | 6.27 | 0.74 | 386.1 | 136.5 | 0.35 |
| 100% Superfifty S1 | 8.05 | 4.27 | 0.52 | 295.1 | 131.3 | 0.46 |
| 100% Superfifty S2 | 8.91 | 4.04 | 0.45 | 361.0 | 190.3 | 0.53 |
| 70% Control S0 | 9.12 | 1.61 | 0.18 | 227.2 | 161.9 | 0.71 |
| 70% Control S1 | 12.42 | 1.64 | 0.13 | 230.7 | 182.2 | 0.79 |
| 70% Control S2 | 9.32 | 1.58 | 0.17 | 169.4 | 135.7 | 0.80 |
| 70% Rygex S0 | 10.78 | 2.18 | 0.22 | 216.6 | 157.4 | 0.74 |
| 70% Rygex S1 | 11.32 | 1.71 | 0.16 | 137.2 | 117.9 | 0.86 |
| 70% Rygex S2 | 11.65 | 1.64 | 0.14 | 155.1 | 119.9 | 0.77 |
| 70% Superfifty S0 | 8.90 | 4.88 | 0.55 | 327.7 | 150.4 | 0.46 |
| 70% Superfifty S1 | 8.86 | 1.57 | 0.18 | 282.3 | 102.2 | 0.35 |
| 70% Superfifty S2 | 8.57 | 2.36 | 0.27 | 268.5 | 136.2 | 0.51 |
ns, *, **, *** Nonsignificant or significant at p ≤ 0.05, 0.01, and 0.001, respectively. Different letters indicate statistically different groups (p < 0.05, Tukey’s post hoc test following ANOVA; n = 3).