Research Update on Variety and Clonal EltiEvaluations in Ohio

Imed Dami Horticulture and Crop Science Ohio Ag ric ult ural Resea rch & Development Center Outline

„ Background

„ Research objectives

„ Variety evaluation protocol

„ Completed trials

„ Current and new trials & Enology Research Priorities

Research priority #1: Cold hardiness and methods of protection Research priority #2: Quality improvement of fruit and Research ppyriority #3: Evaluation of winegrape varieties new to Ohio Research Objectives

„ To evaluate new winegrape cultivars and selections for their potential to be grown in Ohio and produce high quality ¾ Viticultural and enological performances

„ To predict best site-varietyyg matching in Ohio ¾ “” Varietyy@ Evaluation @ OSU Variety Evaluation Protocol Plant & train several varieties (Year 1-3)

Evaluate viticultural Evaluate enological performance performance (Year 4 – 8 or 10) (Year 4 – 8 or 10)

Identify top viticultural Identify top enological performance performance (Year 8 or 10) (Year 8 or 10)

Identify & recommend “best” performers (Year 8 or 10)

Identify & NOT recommend “t”f“worst” performers (Year 8 or 10) Completed Trials

„ Planted: 1995 – 1996 RdReds Whites „ Wooster, Kingsville, Ripley Cab franc Auxerrois „ 25 varieties planted: hybrids, and vinifera Chambourcin Bianca

„ We identified a dozen that Frontenac have potential to perform Limberger Pinot gris well in Ohio Noiret Traminette „ Performance results will Petit Verdot Valvin Muscat be presented at this conference New Germplasm Trials

„ 8 trials since 2004

„ Variety, clone, and rootstock trials

„ Emphasis on high wine quality, disease resistance, and winter hardiness

„ 3 geographic locations New American Varieties/Selections Selection Source „ Established: 2005 at FtFrontenac UMiU. Minnesot a OARDC, Wooster Frontenac gris U. Minnesota GR-7 Cornell U . „ More cold har dy and disease resistant La Crescent U. Minnesota than vinifera and MN 1060 U. Minnesota French hybrids MN 1200 U. Minnesota MN 1211 U. Minnesota „ Potential fruit/wine (Marquette) quality = good to NY 76.0844.24 Cornell U. excellent NY 81.0315.17 Cornell U. NY 84.0101.04 Cornell U. Clonal Trial Clone Clone # Source # ((S)FPS) (orig ina l) „ Established: 2005 at AARS, Kingsville 01 Montpellier FR 03 ISV1 IT „ Identify mo re cold hardy clones 04 ENTAV 332 FR 05 ENTAV 331 FR „ Identify clones with higher fruit and wine 09 VCR 10 IT quality than existing 11 ENTAV 214 FR clone, FPS #01 12 ENTAV 327 FR 13 ENTAV 312 FR New Vinifera / Hybrid Trials

Variety Variety „ Trials are part of a national project NE-1020 Arneis Pinotage with ~30 participating Raboso states Carmenere Refosco Dolcetto Regent „ Planting: 2008 Durif (Petite ) Rotberger „ 3 locations: Wooster, Kingsvill e, and Pik et on noir Gruner Veltliner „ 24+ varieties, mostly vinifera from West and Kadarka Siegerrebe East Europe, and South Kerner Syrah (Shiraz) Africa Lagrein Teroldego Malvasia bianca Viognier Research Objectives

„ To evaluate new winegrape cultivars and selections for their potential to be grown in Ohio and produce high quality wines ¾ Viticultural performance ¾ Enological performance

„ To predict best site-variety matching in Ohio ¾ “Terroir” GIS to Predict Site-Variety Matching

Winter Severity -8F Frequency

Optimum Growing Temperature

Spring Frost Severity (Source: Kurtural & Dami, 2007) Growing Degree Days & Wine Group @ OSU

„ Todd Steiner, Outreach Enologist

„ Dave Scurlock, Outreach Viticulturist

„ Taehyun Ji, Research Associate - Chemist

„ Greg Johns, Ashtabula Station Manager

„ Maurus Brown , Small Fruit Specialist Acknowledgements

Ohio Grape Industries Committee

Ohio Agricultural Research & Development Center

USDA – Viticulture Consortium East