receiving the conjunctive treatment of CT50 +NPK50. The highest
levels were recorded in the roots (80.2%), followed by the leaves
(65.57%) and the petioles (54.05%). Correlation analyses revealed
that higher available N enhanced the accumulation of total antioxidants
in whole plants with a significant correlation (r = 0.990)
between available nitrogen and total antioxidants; a similar trend
was also observed in roots (r = 0.981), leaves (r = 0.995) and petioles
(r = 0.996) (Fig. 3).