Table 2. Results from two-factor analysis of variance.
P values are listed for the effects of green (G, 500–600 nm) light, far-red (FR, 700–800 nm) light, or their interaction on plant growth parameters of lettuce and tomato.
| Lettuce | Tomato | |||||
|---|---|---|---|---|---|---|
| Factor | G | FR | G×FR | G | FR | G×FR |
| Plant diameter | 0.104 | <0.001 | 0.168 | – | – | – |
| Plant height | – | – | – | 0.070 | <0.001 | 0.236 |
| Leaf number | 0.428 | 0.036 | 0.507 | 0.158 | 0.503 | 0.073 |
| Leaf length | 0.739 | <0.001 | 0.277 | – | – | – |
| Leaf width | 0.598 | <0.001 | 0.319 | – | – | – |
| Leaf area | – | – | – | 0.589 | 0.001 | 0.272 |
| Shoot fresh mass | 0.019 | <0.001 | 0.017 | 0.384 | <0.001 | 0.359 |
| Shoot dry mass | 0.050 | <0.001 | 0.008 | 0.369 | <0.001 | 0.236 |
| Shoot moisture content | 0.754 | 0.563 | 0.432 | 0.868 | <0.001 | 0.348 |
| SPAD index | 0.080 | 0.095 | 0.194 | 0.002 | <0.001 | 0.225 |