Occurrence of Viruses and Associated Grain Yields of Paired Symptomatic and Nonsymptomatic Tillers in Kansas Winter Wheat Fields

Phytopathology
Dorith RotenbergJon A Appel

Abstract

Vector-borne virus diseases of wheat are recurrent in nature and pose significant threats to crop production worldwide. In the spring of 2011 and 2012, a state-wide sampling survey of multiple commercial field sites and university-managed Kansas Agricultural Experiment Station variety performance trial locations spanning all nine crop-reporting regions of the state was conducted to determine the occurrence of Barley yellow dwarf virus-PAV (BYDV-PAV), Cereal yellow dwarf virus-RPV, Wheat streak mosaic virus (WSMV), High plains virus, Soilborne wheat mosaic virus, and Wheat spindle streak mosaic virus using enzyme-linked immunosorbent assays (ELISA). As a means of directly coupling tiller infection status with tiller grain yield, multiple pairs of symptomatic and nonsymptomatic plants were selected and individual tillers were tagged for virus species and grain yield determination at the variety performance trial locations. BYDV-PAV and WSMV were the two most prevalent species across the state, often co-occurring within location. Of those BYDV-PAV- or WSMV-positive tillers, 22% and 19%, respectively, were nonsymptomatic, a finding that underscores the importance of sampling criteria to more accurately assess virus occurrence in wi...Continue Reading

References

Jan 1, 1997·Annual Review of Phytopathology·W A Miller, L Rasochová
Feb 1, 2011·Plant Disease·Dallas L SeifersJohn P Fellers
May 1, 2001·Plant Disease·William W BockusMerle G Eversmeyer

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Citations

Apr 30, 2020·Plant Disease·B A HodgeL R Stewart
Feb 3, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Congcong JiangPing Yang

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