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Determination of Virulence Phenotypes of Plasmopara halstedii in the United States.

Plant disease - 1 Nov 2020

Gilley Michelle A, Gulya Thomas J, Seiler Gerald J, Underwood William, Hulke Brent S, Misar Christopher G, Markell Samuel G

Abstract excerpt

Downy mildew, caused by Plasmopara halstedii (Farl.) Berl. and de Toni, is an economically important disease in cultivated sunflowers, Helianthus annuus L. Resistance genes incorporated into commercial hybrids are used as an effective disease management tool, but the duration of effectiveness is limited as virulence evolves in the pathogen population. A comprehensive assessment of pathogen virulence was conducted...

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PMID: 32955406
DOI: 10.1094/PDIS-10-19-2063-RE

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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