Dr. Markus Keller is the Chateau Ste. Michelle Distinguished Professor of Viticulture at Washington State University’s Irrigated Agriculture Research and Extension Center. He received his M.S. in plant science and Ph.D. in natural science from the Swiss Federal Institute of Technology in Zürich, and has conducted viticulture research and taught in North and South America, Europe and Australia. His research focuses on environmental factors and management practices as they influence crop physiology of wine and juice grapes. He is the author of the textbook “The Science of Grapevines” and currently serves as the science editor for the two journals of the American Society for Enology and Viticulture.