Figure 2.

Relationship between ergot severity (% sclerotia in grain by weight) and pollen shedding (anther score 1–9 with 1–3 = no pollen shedding, 4–6 = partially restored, 7–9 = maximal pollen shedding) for open pollinated (OP) population cultivars (cvs.) and hybrid cultivars with (+) and without (−) a restorer gene (R) from a non-adapted source in field experiments with artificial infection by C. purpurea across five locations in each of two years (r = combined coefficient of correlation, p < 0.01).