Races of Puccinia graminis in the United States during 1991

@article{Roelfs1993RacesOP,
  title={Races of Puccinia graminis in the United States during 1991},
  author={A. Roelfs and D. L. Long and J. J. Roberts},
  journal={Plant Disease},
  year={1993},
  volume={77},
  pages={129-132}
}
Stem Rust Resistance in A-Genome Diploid Relatives of Wheat.
Global stem rust surveillance in practice.
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