2017 C O N V E N T I O N P O S T E R S E S S I O N FEB. 7 THREE RIVERS CONVENTION CENTER KENNEWICK, WA

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1 Sponsored by 2017 C O N V E N T I O N P O S T E R S E S S I O N FEB. 7 THREE RIVERS CONVENTION CENTER KENNEWICK, WA AGENDA Tuesday, February 7, 2017 Rooms C-D Three Rivers Convention Center 11:30 AM - 1:15 PM Lunch Available 12:00 PM - 4:00 PM Poster Viewing 12:00 PM - 2:00 PM Undergraduate/Graduate Presentations 2:00 PM Refereed Poster Winners Announced POSTER SESSION CHAIRS Matt Halldorson, Ste. Michelle Wine Estates Richard Hoff, Mercer Canyons, Inc. POSTER JUDGES Leah Adint, Ste. Michelle Wine Estates Trent Ball, Yakima Valley College Rick Hamman, Hogue Ranches Catherine Jones, Washington State University Tara Piraneo, Mercer Canyons, Inc. Bill Riley, Ste. Michelle Wine Estates Kay Simon, Chinook Winery Jen Smithyman, Ste. Michelle Wine Estates

2 POSTER CATEGORIES UNDERGRADUATE GRADUATE PROFESSIONAL 1 Ashley N. Born 4 Ben-Min Chang 16 Lynn Krielow Chamberlain* 2 Corydon Funk 5 Caroline Merrell* 17 Lynn Krielow Chamberlain 3 Jane Rockhold 6 Garret Stahl 18 Melanie Ford 7 Jati Adiputra 19 Basavaraj Bagewadi 8 Jesse Aplin* 20 Byron Marlowe 9 Katherine East* 21 Catherine Jones 10 Margaret McCoy* 22 James Harbertson* 11 Megan R. Schumaker 23 Jensena M. Newhouse 12 Megan Wade* 24 Lynn J. Mills 13 Nataliya Shcherbatyuk 25 Melissa Hansen 14 Xuefei Wang* 26 Naga Teja Natra* 15 Zachary Cartwright 27 Naidu Rayapati* 28 Pete W. Jacoby* 29 Prashant Swamy* 30 Riva Morgan 31 Sridhar Jarugula* 32 Thomas S. Collins* Washington State University provides nearly 25% of funds for Grape and Wine Research Program, provides another $70,000 for viticulture and enology graduate scholarships and more than $5 million annually to support faculty, technicians, operations and facilities of Viticulture and Enology Program. Washington State Department of Agriculture Wine industry has access to three programs: Specialty Crop Block Grant Program - monies from U.S. Department of Ag fund competitive, broad grant program for specialty crops. Washington State Commission on Pesticide Registration competitive research grant program to help Washington address critical pest control needs for minor use crops and sites. Grapevine Certification and Nursery Improvement Program competitive research grant program funds research relating to grapevine nursery stock. U.S. Department of Agriculture programs Many programs available, but those most accessed by researchers include: Specialty Crop Research Initiative national competitive grant program for specialty crops. Northwest Center for Small Fruits Research competitive grant program for Northwest berries and grapes based in Corvallis, Oregon. Western Sustainable Agriculture and Research Education competitive grant program for sustainable research and education in Western States. Private companies Wine producers, chemical companies, equipment manufacturers and others also help fund specific viticulture and enology projects. 33 Yun Zhang* * Indicates research project is partially funded through Washington State Grape and Wine Research Program. See last page for more details. NOTE: Poster information is printed as received by authors except for formatting. For more information contact Melissa Hansen, Research Program Manager, Washington State Wine Commission mhansen@washingtonwine.org or call To access reports:

3 Washington State Wine Industry Research Funding Sources Washington State Grape and Wine Research Program Posters labeled with * indicate they were partially funded through this program This funding is specific to viticulture and enology with direct industry oversight. State legislation in 1981 created program and identified funding source through a state liter tax on all wine sold. In 2015 competitive program received $1.4 million in requests and funded 13 WSU projects totaling nearly $870,000. Program managed by Washington State Wine Commission Accounting and administration provided by Washington State University Represents blend of public, private, and industry funding sources Industry oversight by Wine Research Advisory Committee, subcommittee of Wine Commission. WRAC annually reviews projects and makes funding recommendations to Wine Commission Board; board approves recommendations and forwards to WSU for implementation. Program also provides seed money to leverage funding from other sources. UNDERGRADUATE POSTERS 1 VIRUS AND NEMATODE MANAGEMENT IN GRAPEVINE FOR REPLANT PREPARATION Primary Author: Ashley N. Born Contributors: Julie Tarara and Michelle M. Moyer Funding: SMWE, USDA, NIFA, and Hatch Project # ANALYSIS OF STATISTICAL RELATIONSHIPS BETWEEN BIOCLIMATIC INDICES AND WINE GRAPE HARVEST QUALITIES Primary Author: Corydon Funk Contributors: Melba Salazar-Gutierrez, Bernardo Chaves, Rick Hamman, Bill Riley, AgWeatherNet Program, Washington State University, Hogue Ranches, and Ste. Michelle Wine Estates Funding: AgWeatherNet, and Washington State University Viticulture and Enology Program 3 BUNCH EXPOSURE IN THE PRESENCE OF SUN PROTECTION AGENTS PREVENTS SUNBURN IN WINE GRAPES Primary Author: Melanie Ford Contributors: Bhaskar Bondada and Michael Qian Funding: CAHNRS scholarship GRADUATE POSTERS WSU-Ag Research Center 25% 23% Wine Commission 4 SURPRISE! WATER STRESS INCREASES GRAPE BERRY SPLITTING Primary Author: Ben-Min Chang Contributors: Yun Zhang and Markus Keller Funding: Chateau Ste. Michelle Distinguished Professor Fellowship State Liter Tax 29% 23% Auction of WA Wines 5 IMPACT OF BERRY MATURITY AND WINE ALCOHOL ON PHENOLIC CON- TENT IN CABERNET SAUVIGNON AND SYRAH DURING SIMULATED AGING * Primary Author: Caroline Merrell Contributors: Richard C. Larsen and James F. Harbertson

4 6 EVALUATION OF PHYSIO-ANATOMICAL FEATURES TOWARDS SCHEDULING IRRIGATION AND IMPROVING WATER USE EFFICIENCY IN GRAPEVINES Primary Author: Garret Stahl Contributors: Russ Smithyman, Markus Keller, Bhaskar Bondada Funding: Northwest Center for Small Fruits Research 7 LEAFROLL VERSUS RED BLOTCH: WHICH ONE IS MORE PROBLEMATIC FOR WASHINGTON VINEYARDS? Primary Author: Jati Adiputra Contributors: Naidu Rayapati, with PhD assistance from USAID-Indonesia and Walter J. Clore Scholarship from the Washington Wine Industry Foundation. Special thanks to Prashant Swamy, Bhanu Priya Donda, Basavaraj Bagewadi, Nagateja Natra and Adilakshmi Movva. Funding: WSU Agricultural Research Center, the WSDA-Specialty Crop Block Grant Program (Project # K1275), the WSDA-Nursery Research Funding, the Washington State Commission on Pesticide Registration, the Wine Research Advisory Committee of the Washington State Wine Commission, and Washington State Grape & Wine Research Program. 8 USE OF NON-SACCHAROMYCES YEASTS TO LOWER ALCOHOL YIELDS OF RED WINES * Primary Author: Jesse Aplin Contributors: Dr. Charles Edwards Funding: Not listed 9 DEVELOPING STRATEGIES FOR ROOT-KNOT NEMATODE MANAGEMENT IN WASHINGTON GRAPES * Primary Author: Katherine East Contributors: Inga Zasada, Paul Schreiner, and Michelle Moyer 30 HANDS-ON, HIGH DEMAND: VITICULTURE SUSTAINABILITY Primary Author: Riva Morgan Contributors: Libby Siebens Funding: National Science Foundation, Pacific Northwest Wine Education Collaborative Grant 31 THE COMPLETE GENOME SEQUENCE ANALYSIS OF GRAPEVINE LEAFROLL-ASSOCIATED VIRUS 1 FOR PRACTICAL APPLICATIONS IN VINE- YARDS * Primary Author: Sridhar Jarugula Contributors: Bhanu Priya and Naidu Rayapati Funding: WSU Agricultural Research Center, the Wine Research Advisory Committee, the Washington Wine Commission, the Washington State Grape and Wine Research Program, Northwest Center for Small Fruits Research, and Altria - Chateau Ste. Michelle Wine Estates. 32 ASSESSING SMOKE TAINT RISK BASED ON THE COMPOSITION OF SMOKE EXPOSED GRAPE BERRIES AND THE RESULTING WINES * Primary Author: Thomas S. Collins Contributors: Not applicable 33 OPTIMIZE IRRIGATION PRACTICE FOR WHITE WINE GRAPE PRODUCTION * Primary Author: Yun Zhang Contributors: Markus Keller Funding: USDA Specialty Crop Block Grant Program and the Washington State Grape & Wine Research Program 10 ASSESSING SPRAYER TECHNOLOGY IN WASHINGTON VINEYARDS * Primary Author: Margaret McCoy Contributors: Gwen Hoheisel, Lav Khot, and Michelle Moyer Funding: Washington State Wine Commission, Auction of Washington Wines, State Liter tax, and WSU Agriculture Research Center NOTE: Poster information is printed as received by authors except for formatting.

5 26 BEWARE AND BE AWARE OF SOIL-BORNE VIRAL DISEASES IN WASHING- TON VINEYARDS * Primary Author: Naga Teja Natra Contributors: Jessica Ryan, Maria Bernal, Segun Akinbade, Prashant Swamy, Andrew Schultz, and Naidu Rayapati Funding: WSU Agricultural Research Center, the WSDA-Specialty Crop Block Grant Program (Project #K1503), the Wine Research Advisory Committee, the Washington Wine Commission, and Washington State Grape & Wine Research Program. 27 THE MANTRA OF START CLEAN, STAY CLEAN FOR HEALTHY VINEYARDS * Primary Author: Naidu Rayapati Contributors: Bhanupriya Donda, Sandya Kesoju, Prashant Swamy, Basu Bagewadi, Sridhar Jarugula, Nagateja Natra, Jati Adiputra, and Arunabha Mitra, WSU Agricultural Research Center, the Wine Research Advisory Committee, the Washington Wine Commission, WSDA-Grapevine Advisory Committee, WSDA-Specialty Crop Block Grant Program (Project #K1988), Northwest Center for Small Fruits Research, and Altria - Chateau Ste. Michelle Wine Estates. 28 DIRECT ROOT-ZONE DRIP IRRIGATION EFFECTS ON VINE PHYSIOLOGY AND GRAPE QUALITY * Primary Author: Pete W. Jacoby Contributors: Xiaochi Ma and Jeremy Thompson, Northwest Small Fruit Research Center, and Washington State Department of Agriculture 29 DOUBLE WHAMMY: IMPACTS OF GRAPEVINE LEAFROLL AND RED BLOTCH DISEASES IN COMMERCIAL VINEYARDS * Primary Author: Prashant Swamy Contributors: Sridhar Jarugula and Rayapati Funding: WSU Agricultural Research Center, the Wine Research Advisory Committee of the Washington State Wine Commission and Washington State Grape & Wine Research Program, and the WSDA-Specialty Crop Block Grant Program (Project # K1275). 11 INFLUENCE OF BRETTANOMYCES METABOLITES ON RED WINE AROMA EVALUATED BY CONSUMERS IN WASHINGTON STATE Primary Author: Megan R. Schumaker Contributors: Carolyn F. Ross Funding: Washington State University Viticulture and Enology Program 12 INFLUENCE OF MUST SUPPLEMENTATION ON THE GROWTH OF PEDIOCOCCUS SPP. IN A SYNTHETIC WINE MEDIUM * Primary Author: Megan Wade Contributors: Dr. Charles Edwards Funding: Northwest Center for Small Fruits Research and Washington State Grape & Wine Research Program 13 KEEPING DRY ROOTS ALIVE: GRAPEVINES MOVE WATER FROM WET TO DRY ROOTS Primary Author: Nataliya Shcherbatyuk Contributors: Markus Keller and Patrick Ellsworth Funding: WSU Department of Horticulture and WSU Viticulture and Enology Program 14 BIODIVERSITY OF NATIVE YEAST IN VINEYARDS AND SPONTANEOUS ALCOHOLIC FERMENTATION IN WASHINGTON STATE * Primary Author: Xuefei Wang Contributors: Xuefei Wang, Dan Schlatter, Tim Paulitz, and Patricia Okubara, Viticulture and Enology Program, and China Scholarship Council 15 QUANTIFICATION OF THE SPOILAGE YEAST, BRETTANOMYCES BRUXELLENSIS, IN OAK BARREL STAVES AND ELIMINATION STRATEGIES USING HEAT Primary Author: Zachary Cartwright Contributors: Dr. Charles Edwards Funding: Washington Wine Advisory Committee

6 PROFESSIONAL POSTERS 16 THE PACIFIC NORTHWEST WINE EDUCATION COLLABORATIVE: DEVELOPING NEW ONLINE TRAINING OPPORTUNITIES * Primary Author: Lynn Krielow Chamberlain Contributors: Trent Ball Funding: Not listed 17 PACIFIC NORTHWEST WINE EDUCATION COLLABORATIVE: CREATING NEW HIGH-DEMAND TRAINING OPPORTUNITIES IN VITICULTURE, ENOLOGY, AND WINE MARKETING/SALES Primary Author: Lynn Krielow Chamberlain Contributors: Trent Ball Funding: National Science Foundation s Advanced Technological Education 18 WINE BUSINESS ENTREPRENEURSHIP CERTIFICATE DEVELOPED BY SOUTH SEATTLE COLLEGE'S NW WINE ACADEMY Primary Author: Jane Rockhold Contributors: Regina Daigneault, South Seattle College, Information also provided by the Public Information Office of South Seattle College Funding: NSF ATE grant 19 STRENGTHENING GRAPEVINE SUPPLY CHAIN FOR HEALTHY VINEYARDS Primary Author: Basavaraj Bagewadi Contributors: Adilakshmi Movva, Dr. Nagateja Natra, Jessica Ryan, Maria Bernal, and Dr. Naidu Rayapati Funding: WSDA-Grower Assessment Fund, WSDA-Specialty Crop Block Grant Program (K1765), WSU Agricultural Research Center, Washington State Grape and Wine Research Program, and NSF-REU program at Heritage University 20 ENVIRONMENT AROUND THE 4E S: AN EXPERIENCE ECONOMY INVESTIGATION INTO THE ESTHETICS OF WEATHER AND WINE TOURISM Primary Author: Byron Marlowe Contributors: Rhonda Hammond Funding: Not listed 21 ASSESSING POLYHALITE AS A SOIL AMENDMENT FOR SODIUM AFFECTED WINE GRAPE Primary Author: Catherine Jones Contributors: Joan Davenport Funding: Sirius Materials Plc 22 COMPARISON OF GRAPE AND WINE COMPOSITIONS, YIELD, AND CELL WALL BINDING POTENTIAL OF GRAPES FROM MECHANICALLY PRUNED AND HAND PRUNED SYRAH VINES * Primary Author: James Harbertson Contributors: Christopher Jenkins, Markus Keller, and Jim Harbertson, and NIFA Hatch Project EVALUATING THE IMPACTS OF EARLY FRUIT-ZONE LEAF REMOVAL IN RED WINE GRAPES Primary Author: Jensena M. Newhouse Contributors: Michelle Moyer 24 THE WSU COLD HARDINESS PROGRAM: PROVIDING GRAPE GROWERS WITH CRITICAL TEMPERATURES AND A PREDICTION MODEL DURING WINTER Primary Author: Lynn J. Mills Contributors: Markus Keller Funding: Washington State University, Washington Wine Industry Foundation, and Washington State Concord Grape Research Council 25 VITICULTURE AND ENOLOGY RESEARCH: YOUR WASHINGTON WINE IN- DUSTRY ASSESSMENT AT WORK Primary Author: Melissa Hansen Contributors: Not applicable Funding: Not applicable