Relationship between Tri5 DNA and DON concentration in grain of winter wheat (cv. Equinox) harvested from field plots sprayed with metconazole (90 g of AI/ha) (▪), azoxystrobin (250 g of AI/ha) (●), tebuconazole (250 g of AI/ha) (▴), metconazole (45 g of AI/ha) (♦), azoxystrobin (125 g of AI/ha) (○), tebuconazole (125 g of AI/ha) (▵), or metconazole (45 g of AI/ha) plus azoxystrobin (125 g of AI/ha) (□) at ZGS 59 or from an unsprayed control plot (⋄) . Regression analysis indicated a strong correlation (y = 11x + 0.44; r2 = 0.76; P < 0.001).