Wheat Dockage Content: Analysis of Dockage and Its Relation to Fusarium Head Blight

Abstract

Hard red spring wheat crop grown in different locations in the US were surveyed for the mycotoxin deoxynivalenol (DON). DON is often found in wheat that is infected with the plant fungal disease Fusarium head blight. The contamination of wheat by DON is a major wheat industry concern since it affects human and livestock health. Furthermore, DON reduces wheat grain yield and quality. In this study, DON was measured using gas chromatography with electron capture detection (GC-ECD) in 1353 HRS wheat samples collected from 2013-2015. Results indicate that there was positive significant correlation (P<0.001) between DON content and damaged kernels (0.635) and total defects (0.445). However, for the three-year average, DON content had a weak positive significant correlation (P<0.001) with the percentage of wheat dockage (0.111). Overall, DON production had an effect on kernel damage and total defects, but DON production was not impacted by the percentage of wheat dockage.