crown rust

noun Plant Pathology.
a disease of oats and other grasses, characterized by the formation, on the leaves, of orange or black spores, caused by a rust fungus, Puccinia coronata.

Origin:
1895–1900

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Sources and genetics of crown rust resistance in barley.
Responses to selection for partial resistance to crown rust in oat.
Crown rust also effects the yield and quality of forage production.
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