Table 2.
The shoot fresh weight (FW), shoot dry weight (DW), shoot DW/FW, root/shoot ratio, leaf area, and specific leaf FW of lettuce plants grown under continuous light of different light intensities: low light (LL, 100 μmol·m− 2·s− 1), medium light (ML, 200 μmol·m− 2·s− 1), and high light (HL, 300 μmol·m− 2·s− 1).
| Light intensity | Shoot FW (g) | Shoot DW (g) | Shoot DW/FW (%) | Root/shoot ratio | Leaf area (dm2) | Specific leaf FW (g/dm2) |
|---|---|---|---|---|---|---|
| LL | 76.9 c | 2.06 b | 2.62 c | 0.12 b | 12.12 a | 3.31 c |
| ML | 98.8 b | 3.48 a | 3.38 b | 0.14 b | 12.84 a | 4.15 b |
| HL | 109.9 a | 4.16 a | 3.71 a | 0.18 a | 11.96 a | 4.87 a |
The samples were taken at 12th day after treatment. Values are means of five replicates. Different letters indicate significant differences between different light intensity treatments at p < 0.05 according to Tukey test.