Research Project: Breeding, Genomics, and Integrated Pest Management to Enhance Sustainability of U.S. Hop Production and Competitiveness in Global Markets

Location: Forage Seed and Cereal Research

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Characterization of Podosphaera macularis derived from the hop cultivar ‘Strata’ and resistance to powdery mildew - (Peer Reviewed Journal)

Short duration early season water stress: impacts on hop yield and quality - (Peer Reviewed Journal)

Gene expression for secondary metabolite biosynthesis in hop (Humulus lupulus L.) leaf lupulin glands exposed to heat and low-water stress - (Peer Reviewed Journal)

First report of powdery mildew caused by Golovinomyces ambrosiae on hemp (Cannabis sativa) in Oregon - (Peer Reviewed Journal)

Predicting damage to hop cones by Tetranychus urticae (Acari: Tetranychidae) - (Peer Reviewed Journal)

Floret site utilization and reproductive tiller number are primary components of yield in intermediate wheatgrass spaced plants - (Peer Reviewed Journal)
Altendorf, K.R., DeHaan, L.R., Heineck, G.C., Zhang, X., Anderson, J.A. 2020. Floret site utilization and reproductive tiller number are primary components of yield in intermediate wheatgrass spaced plants. Crop Science. https://doi.org/10.1002/csc2.20385.

Development of diagnostic assays for race differentiation of Podophaera macularis - (Peer Reviewed Journal)

Hop downy mildew caused by Pseudoperonospora humuli: A diagnostic guide - (Peer Reviewed Journal)
Purayannur, S., Miles, T.D., Gent, D.H., Pigg, S., Quesada-Ocampo, L.M. 2020. Hop downy mildew caused by Pseudoperonospora humuli: A diagnostic guide. Plant Health Progress. 21(3):173-179. https://doi.org/10.1094/PHP-10-19-0072-DG.

Population diversity and structure of Podosphaera macularis in the Pacific Northwestern U.S. and other populations - (Peer Reviewed Journal)
Gent, D.H., Claassen, B.J., Gadoury, D.M., Grunwald, N.J., Knaus, B.J., Radisek, S., Weldon, W., Wiseman, M.S., Wolfenbarger, S.N. 2020. Population diversity and structure of Podosphaera macularis in the Pacific Northwestern U.S. and other populations. Phytopathology. 110(5):1106-1116. https://doi.org/10.1094/PHYTO-12-19-0448-R.

Evaluation of fungicides for hop powdery mildew, study 1, Granger, Washington, 2019 - (Other)
Massie, S.T., Claassen, B.J., Gent, D.H. 2020. Evaluation of fungicides for hop powdery mildew, study 1, Granger, Washington, 2019. Plant Disease Management Reports. 14:V051. https://doi.org/10.1094/PDMR14.

Evaluation of fungicides for hop powdery mildew, study 2, Granger, Washington, 2019 - (Other)
Massie, S.T., Claassen, B.J., Gent, D.H. 2020. Evaluation of fungicides for hop powdery mildew, study 2, Granger, Washington, 2019. Plant Disease Management Reports. 14:V051. https://doi.org/10.1094/PDMR14.

High levels of insensitivity to phosphonate fungicides in Pseudoperonospora humuli - (Peer Reviewed Journal)
Gent, D.H., Block, M., Claassen, B. 2020. High levels of insensitivity to phosphonate fungicides in Pseudoperonospora humuli. Plant Disease. 104(5):1400-1406. https://doi.org/10.1094/PDIS-10-19-2067-RE.

Photosynthetic activity of six hop (Humulus lupulus L.) cultivars under different temperature treatments - (Peer Reviewed Journal)
Eriksen, R.L., Rutto, L.K., Dombrowski, J.E., Henning, J.A. 2020. Photosynthetic activity of six hop (Humulus lupulus L.) cultivars under different temperature treatments. HortScience. 55(4):403-409. https://doi.org/10.21273/HORTSCI14580-19.

Genotyping-by-sequencing reveals fine-scale population differentiation in populations of Pseudoperonospora humuli - (Peer Reviewed Journal)
Gent, D.H., Adair, N.L., Knaus, B.J., Grunwald, N.J. 2019. Genotyping-by-sequencing reveals fine-scale population differentiation in populations of Pseudoperonospora humuli. Phytopathology. https://doi.org/10.1094/PHYTO-12-18-0485-R.

Multiple mutations across the succinate dehydrogenase gene complex are associated with boscalid resistance in Didymella tanaceti in pyrethrum - (Peer Reviewed Journal)
Pearce, T.L., Scott, J.B., Wilson, C.R., Gent, D.H., Pethybridge, S.J., Hay, F.S. 2019. Multiple mutations across the succinate dehydrogenase gene complex are associated with boscalid resistance in Didymella tanaceti in pyrethrum. PLoS One. 14(6):e0218569. https://doi.org/10.1371/journal.pone.0218569.

Cooperation and coordination in plant disease management - (Peer Reviewed Journal)
Sherman, J., Burke, J., Gent, D.H. 2019. Cooperation, and coordination in plant disease management. Phytopathology. https://doi.org/10.1094/PHYTO-01-19-0010-R.

Genomic analysis of powdery mildew resistance in a hop (Humulus lupulus L.) bi-parental population segregating for “R6-locus” - (Peer Reviewed Journal)
Padgitt-Cobb, L., Kingan, S.B., Henning, J.A. 2019. Genomic analysis of powdery mildew resistance in a hop (Humulus lupulus L.) bi-parental population segregating for “R6-locus”. Euphytica. 216:10. https://doi.org/10.1007/s10681-019-2543-x.

Stability and resiliency of biological control of the twospotted spider mite (Acari: Tetranychidae) in hop - (Peer Reviewed Journal)
Iskra, A.E., Woods, J.L., Gent, D.H. 2019. Stability and resiliency of biological control of the twospotted spider mite (Acari: Tetranychidae) in hop. Environmental Entomology. 48(4):894-902. https://doi.org/10.1093/ee/nvz071.

Influence of nitrogen fertility practices on hop cone quality - (Peer Reviewed Journal)
Iskra, A., Lafontaine, S., Trippe, K.M., Massie, S., Phillips, C.L., Towney, M., Shellhammer, T., Gent, D.H. 2019. Influence of nitrogen fertility practices on hop cone quality. Journal of American Society of Brewing Chemists. 73(3):199-209. https://doi.org/10.1080/03610470.2019.1616276.

Prediction of spread and regional development of hop powdery mildew: A network analysis - (Peer Reviewed Journal)
Gent, D.H., Bhattacharyya, S., Ruiz, T. 2019. Prediction of spread and regional development of hop powdery mildew: A network analysis. Phytopathology. 109(8):1392-1403. https://doi.org/10.1094/PHYTO-12-18-0483-R.

Evaluation of fungicides for hop powdery mildew, study 1, Toppenish, Washington, 2018 - (Other)
Massie, S.T., Claassen, B.J., Gent, D.H. 2019. Evaluation of fungicides for hop powdery mildew, study 1, Toppenish, Washington, 2018. Plant Disease Management Reports. 13:V025.

Evaluation of fungicides for hop downy mildew and powdery mildew, Prosser, Washington, 2018 - (Other)
Massie, S.T., Claassen, B.J., Gent, D.H. 2019. Evaluation of fungicides for hop downy mildew and powdery mildew, Prosser, Washington, 2018. Plant Disease Management Reports. 13:V026.

Evaluation of fungicides for hop powdery mildew, study 2, Toppenish, Washington, 2018 - (Other)
Massie, S.T., Claassen, B.J., Gent, D.H. 2019. Evaluation of fungicides for hop powdery mildew, study 2, Toppenish, Washington, 2018. Plant Disease Management Reports. 13:V027.