Table 3.
The effect of supplemental UV-A LED radiation on the microelements of microgreens.
| Variants | Microelements, mg 100 g−1 DW | ||||
|---|---|---|---|---|---|
| Mn | Fe | Zn | Cu | B | |
| UV-A 10 h (EXP 1) | |||||
| UV-A 16 h (EXP 2) | |||||
| S | 7.01±0.08a | 16.5±0.24a | 5.90±0.05a | 0.59±0.005a | 1.96±0.05a |
| S+366 nm | 5.80±0.10c | 14.6±0.09c | 5.00±0.04c | 0.47±0.008b | 1.60±0.02c |
| S+390 nm | 6.43±0.05b | 15.2±0.09b | 5.25±0.02b | 0.47±0.005b | 1.80±0.02b |
| S+402 nm | 5.90±0.06c | 12.8±0.06d | 4.92±0.04c | 0.45±0.005c | 1.60±0.02c |
| S | 8.71±0.04c | 11.5±0.04a | 4.20±0.03c | 0.42±0.008b | 1.91±0.02b |
| S+366 nm | 8.73±0.04c | 10.4±0.05c | 4.04±0.01d | 0.40±0.005c | 1.94±0.03b |
| S+390 nm | 8.95±0.05b | 10.3±0.08d | 4.33±0.04b | 0.43±0.008b | 2.03±0.03a |
| S+402 nm | 9.98±0.03a | 11.2±0.02b | 4.66±0.01a | 0.47±0.001a | 1.97±0.01ab |
S, standard irradiance; DW, fresh weight; Mn, manganese; Fe, iron; Zn, zinc; Cu, copper; B, boron. Different letter(s) within the column indicates a significant difference at P ≤ 0.05 by the Duncan’s Multiple Range test.