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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 of crown rust
1895-1900 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for crown rust
  • 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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