Impact of common root rot and crown rot on wheat yield – Tamworth 2016

Abstract

Key findings •• A medium level of common root rot infection reduced the yield of LRPB Gauntlet[PBR] by 5% with a high level of infection resulting in 13% yield loss. •• The expression of crown rot was reduced in 2016 due to the wet seasonal conditions. The medium level of infection did not significantly reduce the yield of LRPB Gauntlet[PBR], but a high level of infection caused 9% yield loss. •• Combined infection with both pathogens – common root rot and crown rot – further exacerbated yield loss, which equated to 23% with a high level of inoculum of both pathogens. •• The effect from a mild, wet season on reducing the extent of yield loss caused by either of these two pathogens appears to be more pronounced with crown rot than common root rot.