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