Varietal yield response to crown rot across two sowing times – Garah 2014

Abstract

Key findings • Averaged across all 28 entries in this trial crown rot resulted in 14% (not significant) yield loss with the early sowing on 2 May. • Delaying sowing from 2 May until 12 June resulted in an average yield loss of 48% from crown rot infection. • Individual varieties of durum, bread wheat and barley differed significantly in their extent of yield loss and actual yield in the presence of crown rot infection. • The bread wheat varieties Wallup [PBR], Suntop [PBR], Sunguard [PBR] and LRPB Lancer [PBR] were between 0.28 and 0.52 t/ha higher yielding than EGA Gregory [PBR] in the presence of crown rot. • The barley varieties Commander [PBR], Compass [PBR], Fathom [PBR], La Trobe [PBR] and Hindmarsh [PBR] were between 0.28 and 0.82 t/ha higher yielding than EGA Gregory [PBR] in the presence of crown rot.