Table 2.
Correlation analysis of phytochemical compounds at different maturity stages in yellow and red fruit colour of capsicum, for vitamin C, phenols, antioxidants and TSS at immature and mature growth stages.
| Parameters | Vitamin C (Immature stage) | Phenols (Immature stage) | Antioxidant (Immature stage) | TSS (Immature stage) | Vitamin C (At maturity) | Phenols (At maturity) | Antioxidant (At maturity) | TSS (At maturity) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Colour | Yellow | Red | Yellow | Red | Yellow | Red | Yellow | Red | Yellow | Red | Yellow | Red | Yellow | Red | Yellow | Red |
| Immature stage | ||||||||||||||||
| Vitamin C | 1 | 1 | ||||||||||||||
| Phenols | 0.602* | 0.843*** | 1 | 1 | ||||||||||||
| Antioxidant | 0.601* | 0.861*** | 0.921*** | 0.959*** | 1 | 1 | ||||||||||
| TSS | -0.291 | -0.397* | -0.254 | -0.23 | -0.203 | -0.283 | 1 | 1 | ||||||||
| Maturity | ||||||||||||||||
| Vitamin C | -0.403 | 0.297 | -0.263 | 0.221 | -0.219 | 0.255 | -0.094 | 0.172 | 1 | 1 | ||||||
| Phenols | 0.189 | 0.209 | 0.448 | 0.364* | 0.229 | 0.202 | -0.174 | 0.052 | -0.036 | 0.218 | 1 | 1 | ||||
| Antioxidant | 0.672** | 0.489** | 0.336 | 0.601*** | 0.394 | 0.655*** | -0.22 | -0.003 | -0.026 | 0.502** | 0.378 | 0.271 | 1 | 1 | ||
| TSS | 0.685** | 0.605*** | 0.44 | 0.728*** | 0.484 | 0.729*** | -0.105 | -0.023 | -0.104 | 0.309 | 0.451 | 0.475** | 0.886*** | 0.815*** | 1 | 1 |
* : Significant at 5% level (p < 0.05); ** : Significant at 1% level (p < 0.01); *** : Significant at 0.1% level (p < 0.001).