Table 1.
The relative levels of photosynthetically active radiation (PAR) and red to far-red ratio (R:FR) achieved in different light treatments
| Treatments | Relative levels (%) | ||
|---|---|---|---|
| PAR | R:FR | PAR | R:FR |
| High | High* | 100 | 100 |
| High | Medium | 100 | 34 |
| High | Low* | 100 | 24 |
| Medium | High* | 60 | 90 |
| Medium | Low* | 70 | 15 |
| Low | High | 29 | 89 |
Percentage values were calculated as the PAR and R:FR measured in each treatment divided by the PAR and R:FR measured in the high PAR and high R:FR treatment. Plant architectural measurements were conducted in all six treatments. Leaf photosynthetic measurements were conducted in treatments denoted with an asterisk.