Fusarium Race 4 Host Plant Resistance: Upland and Pima Screening

Hutmacher, Robert

Fusarium Race 4 Host Plant Resistance: Upland and Pima Screening

Wednesday, January 8, 2014: 8:30 AM

Galerie 1 (New Orleans Marriott)

Robert B. Hutmacher , University of California - Davis & West Side REC

Grant Poole , University of California

Steven D. Wright , University of California Cooperative Extension-Tulare/Kings Co.

Mauricio Ulloa , USDA-ARS-SPA-CSRL

R M Davis , University of California, Davis, Department of Plant Pathology

Mark P. Keeley , University of California Cooperative Extension, Plant Science Department

Gerardo Banuelos , University of California Cooperative Extension-Tulare/Kings Co.

A wide range of commercial varieties and experimental germplasm from seed companies have been screened for relative susceptibility to Fusarium oxysporum vas infectum (race 4) in both naturally-infested grower field sites and artificially inoculated greenhouse evaluations. Evaluations have included a relatively wide range of Pima and Upland varieties from multiple companies over several years. The range of plant survival and indices of plant damage associated with the disease will be summarized for recent years.