Table 4.
Pearson's correlation coefficients (r) between each phenolic compound detected and the canonical scores for each canonical discriminant analysis (CDA) reported in Figure 2.
| Pearson coefficient | ||||
|---|---|---|---|---|
| CDA A | CDA B | CDA C | CDA D | |
| PROCYANIDINS | ||||
| Procyanidin dimer | 0.19 | −0.35 | 0.25 | 0.23 |
| Procyanidin trimer | 0.63* | 0.15 | 0.74* | 0.69* |
| PHENOLIC ACIDS | ||||
| Chlorogenic acid | 0.62* | 0.42 | 0.68* | 0.62* |
| Neochlorogenic acid | 0.79* | 0.12 | 0.90** | 0.82** |
| FLAVONOLS | ||||
| quercetin-3-rutinoside | 0.75* | 0.55 | 0.37 | 0.67* |
| quercetin-3-galactoside | 0.97** | 0.62* | 0.66* | 0.89** |
| quercetin-3-glucoside | 0.93** | 0.71* | 0.69* | 0.88** |
| kaempferol-3-rutinoside | 0.90** | 0.02 | 0.23 | 0.71* |
| kaempferol-3-galactoside | 0.92** | 0.87** | 0.09 | 0.78* |
| isorhamnetin-3-rutinoside | 0.60* | 0.37 | 0.07 | 0.30 |
| isorhamnetin-3-galactoside | 0.70* | −0.30 | 0.67* | 0.69* |
| isorhamnetin-3-glucoside | 0.85** | 0.78* | 0.17 | 0.70* |
| ANTHOCYANINS | ||||
| cyanidin-3-glucoside | 0.83** | 0.43 | 0.74* | 0.82** |
CDA A refers to the uninfected and UV-B-treated samples; CDA B refers to just the UV-B-untreated samples (UVB-0); CDA C refers just to the infected and UV-B-treated samples; CDA D refers to all the samples. For each CDA, only canonical scores from canonical function 1, which explains 80% (CDA A), 74% (CDA B), 73% (CDA C) and 52% (CDA D) of the respective separation.
*
0.6 > |r| > 0.8: strong correlation.
**
0.8 > |r| > 1: very strong correlation.