entity method_of variable_of attribute Crown rust infection type seedling NBFB A qualitative analysis of the type of disease symptoms exhibited by seedlings inoculated with crown rust (Puccinia coronata f. sp. avenae) race NBFB during greenhouse trials. Ratings made using the scale from Murphy (1935) immune/nearly immune= 0, highly resistant= 1, moderately resistant= 2, moderately susceptible= 3, and completely susceptible= 4. scale_of acronym