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Jacoby Laboratory Deficit Irrigation & Grapevine Physiology
Welcome to the Jacoby Lab!


Our lab group currently consists of one Ph.D. graduate student, Xiaochi Ma, and several undergraduate students earning degrees in the Viticulture & Enology Program. Together we are addressing a number of research topics focused on increasing water use efficiency in irrigated specialty crops, using the grapevine as a model plant system. We also maintain collaborations with scientists across a variety of disciplines, locations, and institutions.

Our lab is funded entirely by expenditure funds garnered through competitive grants. These grants are awarded by commodity groups such as WA State Grape and Wine Research Program and WA State Concord Grape Research Council, and through federal grant funds administered and awarded via the Northwest Center for Small Fruits Research, the WA State Department of Agriculture’s Specialty Crop Block Grant Program, and Western Sustainable Agriculture Research and Education (WSARE) program.

We are co-located, with our primary location in Johnson Hall (Rooms 126, 126A, and 289) on the WSU Pullman campus, and our field operations are based from WSU Irrigated Agriculture Research and Extension Center in Prosser, Washington. We enjoy engagement with producers from the grape based industries and conduct our field research in commercial vineyards through cooperative agreements. We maintain an industry advisor group to ensure our research is aligned with needs of growers within the Pacific Northwest.

We sincerely appreciate inquiries regarding our on-going research projects and we hope this website opens opportunities for sharing our findings and also serves an avenue for exchange of ideas, suggestions and needs.



Pete W. Jacoby, Professor/Scientist