Impact of crown rot on durum and bread wheat varieties – Winton 2012

Abstract

Key findings • Durum and bread wheat varieties differ in their tolerance to crown rot. • In a high crown rot background, the following differences were noted; – Durum variety choice resulted in a 78% increase in yield between the worst (EGA_Bellaroi[PBR]) and best entry (Jandaroi[PBR]). – Bread wheat variety choice resulted in a 94% increase in yield between the worst (Lincoln[PBR]) and best entry (Ventura[PBR]). • Ventura[PBR], Suntop[PBR] and LRPB Spitfire[PBR] were 18–20% higher yielding than EGA_Gregory[PBR]. • Variety choice is not the sole solution to crown rot and root lesion nematodes but it can significantly impact on final yield and profit in the presence of these disease constraints.