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