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Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel
Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel
Steven Leath
Coker 716, a hexaploid oat cultivar resistant to both oat mosaic virus (OMV) and oat golden stripe virus (OGSV) was crossed to three susceptible cultivars (Brooks, Madison, and Tech) to form three individual populations. Individual breeding lines were derived from each cross in the F2 generation and tested in plots consisting of equally spaced individual hills in OMV- and OGSV-infested soils and non-infested soils to evaluate resistance and yield loss of individual lines. Foliar symptoms, harvest index, and yield loss were examined as selection criteria for resistant genotypes. The study was conducted over 2 years at two North Carolina locations …