A qualitative analysis of the type of disease symptoms exhibited by seedlings inoculated with crown rust (Puccinia coronata f. sp. avenae) race DQBB 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. Crown rust infection type seedling DQBB scale_of entity acronym variable_of method_of attribute