Fig. 1.

Powdery mildew disease severity on plants of Baudin, CLE210 and Denar barley, as assessed by Gupta et al. (2015) between the two-leaf growth stage (GS12; Zadoks et al. 1974) and grain filling (GS75). Disease severity was assessed on a scale from 0 (no disease) to 9 (very severe disease)