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OMAFRA: Ontario corn DON screening trial report now available

February 20, 2024  By Field Crop News

The inaugural 2023 Ontario corn hybrid DON screening trial report is available on

Ontario corn hybrid DON (deoxynivalenol) screening trials were initiated by the Ontario Corn Committee in 2019 following high DON levels in the 2018 corn crop. Hybrid susceptibility is one of the greatest factors influencing Gibberella ear rot and DON accumulation in corn (second only to weather), and the greatest factor that can be controlled by agronomic practices. Ontario growers can reduce DON risks through hybrid selection and management and have asked for DON hybrid testing for many years.

Starting in 2019, the Ontario Corn Committee (OCC) refined protocols for testing hybrid sensitivity to DON accumulation with confidence based on an assessed risk. This inaugural report provides a risk assessment of hybrids entered in the 2023 trials, along with a multi‐year assessment on the same hybrids if data were available. |READ MORE



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