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P W V EDITORIAL ADVERTISING CIRCULATION 65 Mitchell Blvd., Suite A San Rafael, CA 94903 415/453-9700 www.practicalwinery.com EDITOR/ART DIRECTOR Don Neel ASSOCIATE PUBLISHER Tina Vierra CONTRIBUTING WRITERS James Kennedy Bruce Zoecklein Dr. Richard Smart ADVERTISING WEST Jacques Brix jbrix@winesandvines.com Lydia Hall lydia@winesandvines.com MIDWEST Hooper Jones Associates hooperhja@aol.com EAST Dave Bayard dave@bayard.com Marsha Tabb marshatabb@comcast.net Cover Photo: Transfer of sorted grapes to fermentation tank at Rodney Strong Vineyards. Photo by Don Neel 5 Unraveling the nature of perceived complexity in wine Wendy V. Parr, Faculty of Agriculture & Life Sciences, Lincoln University, Christchurch, New Zealand 10 cover story rodney strong Wine estates: New vineyards yield grapes for red wine blend Don Neel, Editor 17 tannin: Impacts and opportunities along the value chain Paul Smith, Keren Bindon, Jacqui McRae, Stella Kassara and Dan Johnson, Australian Wine Research Institute 22 Describing oral sensations elicited by white wine Gary J. Pickering, Cool Climate Oenology and Viticulture Institute, Department of Biological Sciences, and Department of Psychology, Brock University, Ontario, Canada 29 Microbial origins of key wine aromas, Part I: esters and AlDehyDes Russell Moss 32 stickiness: New concept in grape and wine tannin analysis Matthew R. Revelette, Ralph S. Yacco and James A. Kennedy, Department of Viticulture & Enology, California State University, Fresno, Calif. Perceived Tannin Colloidal State Direct Oxida on Antho- cyanin Organic Acid Residual Sugar Aroma Compound Poly- saccharide Ethanol Glycerol Oxida on Products Manno- protein Tannin Concentra on Composi on Our percep on of tannin is influenced by many wine components 38 oxygen transmission through different closures into bottled wine Paulo Lopes, Maria Silva, Cédric Saucier, Pierre-Louis Teissedre, Yves Glories, Faculté d'Oenologie - ISVV, Villenave d'Ornon France. 43 smart viticulture Grape-specific trellises in sierra Foothills vineyard Dr. Richard Smart 47 Myths of frost protection Steve Hammersmith 50 ADvertIser INDeX 65 Mitchell Blvd., Ste. A, San Rafael, CA 94903 • (866) 453-9701 • www.winesandvines.com D I S CR E T E F I N I S H E A R L Y I N TE G R A T E D W h i t e W i ne Mo u t h f e e l W he e l c o N t e N t s r o d n e y S t r o n g W i n e e S t a t e S s P e c I A l e D I t I o N JAN. 2015 vol. 96, No. 1A SUPPLEMENT TO