ASEV Honors 2026 Best Paper Award Recipients

Research on Pinot noir yield management and Zinfandel berry size recognized for industry impact.

Apr. 15, 2026 at 9:58pm

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A highly structured abstract painting in muted earth tones, featuring sweeping geometric arcs, concentric circles, and precise botanical spirals, conceptually representing the complex natural forces and factors that influence grape and wine quality.Academic research is translating into practical strategies to help the wine industry adapt to evolving conditions and consumer preferences.San Luis Obispo Today

The American Society for Enology and Viticulture (ASEV) announced the recipients of its 2026 Best Paper Awards, recognizing two studies that offer practical insights for vineyard management and winemaking decisions. The winning papers examined long-standing assumptions about yield management in Pinot noir and the role of berry size in shaping Zinfandel wine composition and sensory profile.

Why it matters

These award-winning studies demonstrate how academic research can translate into actionable guidance for growers and winemakers, helping the industry adapt to evolving conditions and consumer preferences. The findings challenge conventional wisdom and provide data-driven strategies to optimize quality and efficiency.

The details

The Best Viticulture Paper, 'Long-term Citizen Science Project Led to Pinot noir Yield Management Changes,' found that reducing yields through cluster thinning did not consistently improve Pinot noir fruit or wine quality. Instead, seasonal conditions had a greater influence on outcomes than yield level. As a result, participating growers reportedly increased yield targets over time without compromising quality, while also reducing labor costs associated with thinning. The Best Enology Paper, 'Influence of Berry Size on California-Grown Zinfandel Grapes and Wines,' determined that smaller berries within Zinfandel clusters, particularly raisins, have a disproportionate effect on wine composition and style. Wines produced from smaller berries showed higher alcohol, deeper color and greater tannin concentration, with more intense spicy and dried-fruit characteristics. In contrast, wines made from larger berries had lower alcohol and phenolics, with brighter red fruit character and higher perceived acidity.

  • The 2026 ASEV Best Paper Awards were announced on April 15, 2026.
  • The winning papers will be recognized at the Joint 77th ASEV National Conference and 50th ASEV Eastern Section Annual Conference in Boise, Idaho.

The players

James Osborne

ASEV Board President.

Kiley M. Osterman

Former graduate student at Oregon State University, currently with Vina Quest in Paso Robles, California.

Patricia A. Skinkis

Professor at Oregon State University in Corvallis.

L. Federico Casassa

Professor at California Polytechnic State University, San Luis Obispo.

Anibal A. Catania

Researcher at Instituto Nacional de Tecnología Agropecuaria in Mendoza, Argentina.

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What they’re saying

“These papers stand out for their ability to test widely held assumptions and provide clear, data-driven guidance for the industry. Both studies translate complex research into practical insights that growers and winemakers can apply directly in their operations.”

— James Osborne, ASEV Board President

What’s next

The winning papers will be recognized at the Joint 77th ASEV National Conference and 50th ASEV Eastern Section Annual Conference in Boise, Idaho.

The takeaway

These award-winning studies demonstrate how academic research can provide actionable insights to help the wine industry adapt to evolving conditions and consumer preferences. By challenging conventional wisdom and offering data-driven strategies, the findings empower growers and winemakers to optimize quality and efficiency.