Cornell University, New York

History and Development

The grape breeding program at Cornell University is one of the oldest and most successful in the United States. The history of its viticulture branch began in 1888 at the New York State Agricultural Experiment Station in Geneva, New York (now a cutting-edge research and innovation complex known as Cornell AgriTech). Projects focused on developing table and seedless grape varieties kicked off in 1919 in close collaboration with the New York Botanical Garden.

For over a century, the program's primary objective has been ensuring the economic viability of viticulture across the northeastern United States—a region characterized by a distinct cool and humid climate (Cool Climate viticulture). Cornell scientists were the first to demonstrate the feasibility of commercial premium wine production in the challenging environments of New York State (particularly in the Finger Lakes subregion). Over its decades of operation, the institution has officially named and patented 60 grape varieties, spanning wine, table, and juice cultivars.

Core Scientific Activities

The scientific school of Cornell AgriTech focuses on addressing the specific challenges of northern-latitude and high-humidity viticulture. Key areas of activity include:

• Winter Hardiness (Cold Hardiness): Breeding varieties capable of overwintering without vine burial during extreme temperature drops, while fully preserving the fruitfulness of primary buds.
• Complex Disease Resistance: Selecting varieties with high genetic immunity to downy mildew, powdery mildew, black rot, and bunch rot (botrytis), allowing grape growers to drastically reduce chemical fungicide applications.
• Interspecific Hybridization: Crossing classic European grapes (Vitis vinifera) with native North American species (Vitis labrusca, Vitis riparia) to combine high wine quality with natural vine resilience.
• Vineyard Digitalization: Implementing advanced robotic systems for automated grapevine phenotype data collection and applying marker-assisted selection (active participation in the national VitisGen project).

Contributions to Viticulture and Winemaking

The long-term work of Cornell breeders (led by legendary professors such as Bruce Reisch) has laid the economic foundation for the wine industry across the eastern United States and Canada. The annual economic impact of introducing Cornell-bred varieties into commercial production is estimated at over 100 million dollars.

Among the most famous achievements and grape varieties bred by Cornell University are:

Wine Grape Varieties (Bred for Winemaking):

• Traminette: An outstanding white wine grape variety (a hybrid of Gewürztraminer and the complex hybrid selection Joannes Seyve 23-416). It inherited a pronounced spicy and floral aroma from its noble parent while possessing superior cold hardiness and fungal disease resistance.
• Cayuga White: The first wine variety officially released by the Geneva station in 1972. This white grape produces light, clean, refreshing wines and remains the workhorse of the East Coast wine industry.
• Aravelle: One of Cornell AgriTech's newest milestone releases (a complex hybrid of Cayuga White and the iconic German Riesling). It was created to deliver a noble "Riesling-like" flavor profile under humid climate conditions due to its high resistance to bunch rot.
• Noiret and Arandell: Next-generation red wine grape varieties featuring deep color and rich tannins (including Carignane pedigree), coupled with ultra-high resistance to downy mildew.

Table and Seedless Varieties:

• Bronx Seedless: A historic success for the program (the cross was made back in 1925). A pink seedless grape that set the flavor standards for early American seedless cultivars.
• Everest Seedless: An innovative, large-berried, blue-black seedless grape with high cold tolerance (hardy down to -30°C). It features a juicy pulp with a fruity aroma reminiscent of the classic Concord variety.

Today, Cornell University (through the Cornell Grapevine Breeding Program) continues to develop environmentally sustainable and commercially successful varieties, effectively reducing both the carbon footprint and pesticide loads in the world's vineyards.