Regional crown rot management – Westmar, Qld 2015

Abstract

Key findings • Yield loss from crown rot ranged from 9.9% (not significant) in the bread wheat variety LRPB Spitfire[PBR] up to 60.1% in the bread wheat entry VO7176-69. • Bread wheat variety choice had a large effect on yield where there were high levels of crown rot infection with nine varieties being between 0.54 t/ha to 1.76 t/ha higher yielding than EGA Gregory[PBR]. • The barley varieties Commander[PBR] and La Trobe[PBR] were 1.56 t/ha and 2.27 t/ha higher yielding than EGA Gregory[PBR] under high levels of crown rot infection, respectively. • Rancona® Dimension did not provide a yield benefit in the presence of high levels of crown rot infection at this site in 2015.