Table 4. Correlation coefficient for antioxidant phytochemical and antioxidant capacity in three selected A. tricolor accessions.

	β-carotene (mg kg-1)	Ascorbic acid (mg kg-1)	Total polyphenol content (GAE mg kg-1 dw)	Total flavonoid content (RE mg kg-1 dw)	Total antioxidant capacity (DPPH) (TEAC mg kg-1 dw)	Total antioxidant capacity ABTS+) (TEAC mg kg-1 dw)
β-carotene		0.94**	0.68*	0.71*	0.82**	0.97**
AsA			0.66*	0.72*	0.76*	0.75*
TPC				0. 77*	0.95**	0.85**
TFC					0.84**	0.83**
TAC (DPPH)						0.96**

AsA, Ascorbic acid; TPC, Total polyphenol content; TFC, Total flavonoid content; TAC (DPPH), Total antioxidant capacity (DPPH); TAC (ABTS⁺), Total antioxidant capacity (ABTS⁺)

*significant at 5% level

** significant at 1% level, (n = 6)