Table 4.
Pearson’s correlation coefficient between response variables.
| Variables | Yield | TPC | TAC | ABTS | |
|---|---|---|---|---|---|
| Yield | Correlation | 1.000 | −0.238 | −0.076 | −0.344 |
| Sig. (2-tailed) | 0.393 | 0.079 | 0.210 | ||
| TPC | Correlation | −0.238 | 1.000 | 0.737** | 0.942** |
| Sig. (2-tailed) | 0.393 | 0.002 | 0.000 | ||
| TAC | Correlation | −0.076 | 0.737** | 1.000 | 0.525* |
| Sig. (2-tailed) | 0.079 | 0.002 | 0.044 | ||
| ABTS | Correlation | −0.344 | 0.942** | 0.525* | 1.000 |
| Sig. (2-tailed) | 0.210 | 0.000 | 0.044 | ||
*Correlation is significant at the level of p < 0.05; **Correlation is significant at the level of p < 0.01; TPC: total phenolic content; TAC: total anthocyanin content; ABTS: 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid.