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Disease Management and Estimated Effects on DON (Deoxynivalenol) Contamination in Fusarium Infested Barley

1
Department of Agricultural Economics, University of Nebraska, Lincoln 204A Filley Hall, Lincoln, NE 68583, USA
2
United States Department of Agriculture-Agricultural Research Service, Department of Plant Pathology, Raleigh, NC 27695, USA
3
Department of Plant Pathology, University of Minnesota, Saint Paul, MN 55108, USA
4
Department of Plant Pathology, North Dakota State University, Dept. 7660, Fargo, ND 58108-6050, USA
5
North American Wheat Breeding & Operation, BASF Agricultural Solutions, Beaver Crossing, NE 68313, USA
6
Department of Plant Sciences, North Dakota State University, Dept. 7660, Fargo, ND 58108-6050, USA
7
Department of Agribusiness and Applied Economics, North Dakota State University, Dept. 7610, Fargo, ND 58108-6050, USA
*
Author to whom correspondence should be addressed.
Agriculture 2019, 9(7), 155; https://doi.org/10.3390/agriculture9070155
Received: 8 June 2019 / Revised: 7 July 2019 / Accepted: 10 July 2019 / Published: 13 July 2019
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PDF [261 KB, uploaded 13 July 2019]

Abstract

Fusarium head blight (FHB or scab) economically devastates barley production. FHB is predominantly caused by Fusarium graminearum and has resulted in major reductions in the quality of barley in the United States. The most common source of economic loss is through development of potent mycotoxins in the grain, the most prominent of which, in the United States, is deoxynivalenol (DON). DON levels can be managed through a variety of techniques. This study presents the estimate of the statistical relationship among DON contamination in barley, FHB incidence and severity, and a variety of disease management techniques. Data from 22 field studies and a survey of barley producers are used to estimate the relationship. Fungicide applications reduce DON in barley in general and via complementary interactions with the barley cultivar. Genetic FHB resistance in barley varieties is an important determinant of DON levels, as well as previous crop and factors related to time and location. Taking care to avoid rotations with FHB host crops immediately prior to barley is also important to reduce DON levels in barley. These become key inputs into barley producer decisions for evaluating the economic value of adopting FHB management techniques. View Full-Text
Keywords: Fusarium head blight; scab; deoxynivalenol; regression; disease management Fusarium head blight; scab; deoxynivalenol; regression; disease management
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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McKee, G.; Cowger, C.; Dill-Macky, R.; Friskop, A.; Gautam, P.; Ransom, J.; Wilson, W. Disease Management and Estimated Effects on DON (Deoxynivalenol) Contamination in Fusarium Infested Barley. Agriculture 2019, 9, 155.

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