Figure 2.

Mean germination rate of northern and southern Puccinia striiformis f.sp. tritici isolates for four incubation temperatures. Means and standard errors based on the averages of 10 northern and seven southern isolates. *Significant differences between northern and southern isolates at a given temperature, as revealed by Student–Newman–Keuls a posteriori tests. *P < 0.05; **P < 0.01.