Table 6.

Correlations (R²) established between antioxidant capacity (ABTS, DPPH), total phenolics (TotP), non-tannic phenolics (NTP), tannic phenolics (TP), total flavonoids (TotF) and phenolic acids in leaves and twigs of the examined accessions of Parthenium argentatum harvested at 30 (winter) and 33 months (spring) after transplanting.

	Leaves						Twigs
Phenolic acids	ABTS	DPPH	TotP	NTP	TP	TotF	ABTS	DPPH	TotP	NTP	TP	TotF
Neoclorogenic	0.3097 **	0.4045 **	0.4208 **	0.4418 **	0.0079	0.1232	0.2926 *	0.1405	0.0857	0.3733 *	0.0627	0.0652
Chlorogenic	0.0236	0.0873	0.2381 *	0.1544	0.0378	0.5341 ***	0.4853 **	0.4853 **	0.4030 **	0.6734 ***	0.0027	0.5139 ***
Cryptochlorogenic	0.0429	0.0334	0.1829 *	0.1827 *	0.0031	0.1127	0.2365 *	0.2690 *	0.2504 *	0.0901	0.2017 *	0.3535 *
Isovanillic	0.1736 *	0.0009	0.0028	0.1388	0.1386	0.0173	0.2475 *	0.1212	0.0814	0.2373 *	0.0135	0.0335
Cynarin	-	-	-	-	-	-	0.2518 *	0.2511 *	0.1364	0.3158 *	0.0046	0.1828 *
3,5-DCQ	0.0607	0.0102	0.0004	0.1266	0.1932 *	0.0136	0.4843 **	0.3800 **	0.3251 *	0.4339 **	0.0192	0.2497 *

*** p ≤ 0.0001, ** p ≤ 0.001, * p ≤ 0.05.