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Table 2 Pearson’s correlation coefficients between in-vivo AOP and in-vitro AOP, TPC, and TFC for individual chicory cultivars regardless of fertiliser treatments

From: In-vitro and in-vivo antioxidant assays of chicory plants (Cichorium intybus L.) as influenced by organic and conventional fertilisers

Correlant

Correlation coefficient (R2) for in-vivo antioxidant potential according to cultivar

‘Trevisio’

‘Verona’

‘Anivip’

‘Castelfranco’

vs. in-vitro AOP

−0.255

−0.713

− 0.582

0.086

P-value

ns

**

*

ns

vs. TPC

−0.022

− 0.443

−0.540

0.033

P-value

ns

ns

ns

ns

vs. TFC

−0.534

−0.803

− 0.570

0.637

P-value

ns

**

ns

*

  1. AOP, antioxidant potential, TPC total phenolics content, TFC total flavonoids content
  2. Significances of the correlations: *, P < 0.05; **, P < 0.01; ns, not significant