Table 1.
Correlation (Pearson coefficient—r) between phenolic composition and environmental data (temperature and solar irradiance) for the three studied species (Phillyrea latifolia, Cistus incanus and Pistacia lentiscus).
| Phenolic Composition | Temperature | Solar Irradiance |
|---|---|---|
| P. latifolia | ||
| K | 0.26 | 0.10 |
| A | 0.12 | 0.20 |
| CA | 0.54* | 0.35 |
| Q | 0.52* | 0.05 |
| L | 0.65** | 0.14 |
| TFC | 0.59** | 0.11 |
| TPC | 0.59** | 0.12 |
| C. incanus | ||
| K | -0.28 | -0.17 |
| M | -0.02 | 0.13 |
| Q | 0.46* | 0.67** |
| T | 0.45* | 0.49* |
| TFC | 0.12 | 0.32 |
| TPC | 0.43 | 0.51* |
| P. lentiscus | ||
| M | 0.18 | -0.07 |
| Q | 0.09 | 0.45 |
| T | 0.17 | 0.25 |
| TFC | 0.17 | 0.05 |
| TPC | 0.19 | 0.21 |
A—apigenin derivatives; CA—caffeic acid derivatives; K—kaempferol derivatives; L—luteolin derivatives; M—myricetin derivatives; Q—quercetin derivatives; T—tannin derivatives; TFC—total flavonoid content; and, TPC—total phenolic content. * and ** are significant at p ≤ 0.05 and 0.01 respectively.