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

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	*

AOP, antioxidant potential, TPC total phenolics content, TFC total flavonoids content

Significances of the correlations: *, P < 0.05; **, P < 0.01; ns, not significant