Table 5.
Analysis of variance and means comparison for Neoxanthin (Neo), Violaxanthin (Vio), Lutein (Lut), Chlorophylls (Chl a+b), β-caroten (β-car), Starch, total soluble sugars (TSolub), Total Non-Structural carbohydrates (TNsc) content of ‘Saxa’ and ‘Vertus’ microgreens grown under Low VPD (LV) and High VPD (HV) at the two light intensities:150 and 300 PPFD (µmol photons m−2 s−1).
|
|
Neo | Vio | Lut | Chl a+b | β-Car | Starch | TSolub | TNsc |
|---|---|---|---|---|---|---|---|---|
| (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | (mg 100g FW-1) | |
| Species | ||||||||
| Saxa (S) | 1.40 ± 0.10b | 27.5 ± 2.59 | 4.98 ± 0.35b | 64.3 ± 5.26b | 3.64 ± 0.25b | 54.7 ± 9.28b | 463.9 ± 46.7 b | 518.6 ± 54.9b |
| Vertus (V) | 1.69 ± 0.134a | 22.9 ± 1.61 | 6.60 ± 0.37a | 82.0 ± 5.14a | 4.60 ± 0.22a | 258 ± 72.3a | 1127 ± 70.7a | 1386.3 ± 128.9a |
| VPD | ||||||||
| Low (LV) | 1.80 ± 0.12a | 27.9 ± 2.54 | 6.27 ± 0.44a | 79.0 ± 6.21 | 4.44 ± 0.31a | 129 ± 35.6a | 831.9 ± 111.7 | 960.8 ± 139.8 |
| High (HV) | 1.28 ± 0.83b | 22.5 ± 1.55 | 5.32 ± 0.37b | 67.3 ± 4.85 | 3.80 ± 0.20b | 184 ± 76.1b | 759.7 ± 120.3 | 944.0 ± 185.2 |
| Light | ||||||||
| 300 PPFD | 1.50 ± 0.11 | 25.2 ± 1.0 | 5.76 ± 0.39 | 70.9 ± 4.9 | 4.05 ± 0.25 | 271 ± 68.9a | 954.6 ± 116.4a | 1226.3 ± 174.2a |
| 150 PPFD | 1.58 ± 0.14 | 25.2 ± 3.04 | 5.82 ± 0.47 | 75.4 ± 6.54 | 4.20 ± 0.30 | 41.6 ± 6.44b | 637.0 ± 95.3b | 678.7 ± 99.4b |
| Interaction | ||||||||
| S LV 300 | 1.49 ± 0.15 | 25.1 ± 3.25 | 4.84 ± 0.61 | 58.1 ± 8.35 | 3.39 ± 0.33 | 94.4 ± 4.81c | 628.4 ± 46.2 | 722.8 ± 41.5 |
| S LV 150 | 1.67 ± 0.32 | 35.3 ± 9.43 | 6.12 ± 1.21 | 81.3 ± 17.91 | 4.47 ± 0.89 | 42.8 ± 10.9c | 402.1 ± 83.7 | 444.9 ± 90.7 |
| S HV 300 | 1.03 ± 0.17 | 24.6 ± 1.07 | 4.34 ± 0.03 | 54.4 ± 1.87 | 3.14 ± 0.17 | 64.2 ± 11.4c | 533.5 ± 56.6 | 597.7 ± 67.9 |
| S HV 150 | 1.4 ± 0.07 | 24.7 ± 2.62 | 4.64 ± 0.12 | 63.3 ± 1.09 | 3.57 ± 0.1 | 17.3 ± 4.07c | 291.9 ± 54.5 | 309.2 ± 57.0 |
| V LV 300 | 1.93 ± 0.05 | 26.3 ± 1.21 | 6.65 ± 0.33 | 82.2 ± 5.03 | 4.80 ± 0.02 | 319 ± 53.6b | 1355.6 ± 87.79 | 1674.9 ± 34.4 |
| V LV 150 | 2.12 ± 0.28 | 25.0 ± 2.26 | 7.47 ± 0.8 | 94.4 ± 9.48 | 5.11 ± 0.63 | 59.3 ± 5.65c | 941.5 ± 42.1 | 1000.7 ± 42.6 |
| V HV 300 | 1.57 ± 0.13 | 24.7 ± 2.83 | 7.23 ± 0.29 | 88.9 ± 2.23 | 4.85 ± 0.14 | 608 ± 79.9a | 1300.9 ± 52.4 | 1909.5 ± 45.6 |
| V HV 150 | 1.13 ± 0.12 | 15.8 ± 2.81 | 5.06 ± 0.67 | 62.6 ± 3.19 | 3.63 ± 0.24 | 47.2 ± 16.6c | 912.7 ± 128.2 | 959.9 ± 130.6 |
| Significance | ||||||||
| Species | * | NS | ** | * | ** | *** | *** | *** |
| VPD | *** | NS | * | NS | * | * | NS | NS |
| Light | NS | NS | NS | NS | NS | *** | *** | *** |
| S x V x L | NS | NS | NS | NS | NS | ** | NS | NS |
NS, *, **, *** stands for non-significant or significant at p ≤ 0.05, p ≤ 0.01, p ≤ 0.001. Different letters correspond to significant differences according to Tukey test.