Table 3.
Effect of different blue–red light ratios in LED lighting on the growth parameters of mustard microgreens.
| Treatment | Hypocotyl Length, cm |
Root Length, cm |
Leaf Area, cm2 |
Shoot Fresh Weight, mg |
Shoot Dry Weight, mg |
Root Fresh Weight, mg |
Root Dry Weight, mg |
Shoot-to-Root Ratio |
|---|---|---|---|---|---|---|---|---|
| B0R100 | 3.37 ± 0.10 a | 6.95 ± 0.42 ab | 2.43 ± 0.31 b | 68.65 ± 5.07 ab | 4.10 ± 0.86 a | 10.82 ± 1.04 a | 0.68 ± 0.03 a | 5.95 ± 0.98 ab |
| B10R90 | 2.49 ± 0.14 b | 6.30 ± 0.13 b | 2.19 ± 0.19 b | 63.20 ± 4.05 ab | 4.14 ± 0.09 a | 11.97 ± 0.09 a | 0.75 ± 0.04 a | 5.51 ± 0.16 b |
| B25R75 | 2.30 ± 0.26 b | 6.53 ± 0.27 ab | 2.73 ± 0.19 a | 70.46 ± 4.23 ab | 4.27 ± 0.48 a | 12.46 ± 2.64 a | 0.78 ± 0.04 a | 5.46 ± 0.44 b |
| B50R50 | 2.15 ± 0.14 b | 6.80 ± 0.55 ab | 2.30 ± 0.15 b | 60.07 ± 1.54 b | 3.60 ± 0.35 b | 11.60 ± 2.31 a | 0.69 ± 0.09 a | 5.24 ± 0.25 b |
| B75R25 | 1.38 ± 0.20 c | 7.14 ± 0.23 ab | 2.25 ± 0.11 b | 60.99 ± 3.52 b | 3.79 ± 0.24 b | 11.25 ± 0.50 a | 0.70 ± 0.06 a | 5.43 ± 0.23 b |
| B100R0 | 3.29 ± 0.22 a | 7.46 ± 0.42 a | 3.08 ± 0.23 a | 78.73 ± 13.21 a | 4.41 ± 0.77 a | 11.34 ± 1.51 a | 0.62 ± 0.13 a | 7.17 ± 0.79 a |
B0R100, B10R90, B25R75 B50R50, B75R25, and B100R0: indicate the percentage of blue (B) and red (R) light. All values in the table are expressed as mean ± standard error (n = 3). Means with different letters are significantly different at the p < 0.05 level according to Tukey’s honestly significant difference test.