Fig. 3.

Frequency distribution of stem rust severity (%) ratings of the Carberry/AC Cadillac doubled haploid (DH) population. Measurements of Ug99 stem rust severity made in field nurseries near Njoro, Kenya in 2010 and of North American races in Swift Current, Canada 2011 presented. In Njoro, Kenya, the mean disease severity of AC Cadillac was 1.7 % in 2010, while the mean disease severity of Carberry was 17.5 % in 2010. The mean disease severity of AC Cadillac near Swift Current, Canada was 11.7 % in 2011 and Carberry mean severity was 9.2 % in 2011