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UK research serves up juicy boost to grape and wine industry
Nearly three years ago, Kaan Kurtural and Tom Cottrell arrived at UK to be the institution’s first viticulturist and enologist respectively. Since then, they and their graduate
students/research assistants have delved into a whirlwind of projects to help the Kentucky grape and wine industry gain ground and earn respect for its practices and products.
With a little more than three acres of grapes planted at UK’s Horticulture Research Farm in south Lexington, researchers have a lot of irons in the fire focusing on multiple areas of study.
“Well, the focus of the research is quite broad. We have about 16 different projects,” Kurtural said, referring to the grape acreage. “Our main focus areas are helping producers decide where to plant vineyards and why. They want to know what kind of cultivars to plant and how to crop those cultivars sustainably so they can produce a marketable crop. The other thing we are looking at is reducing the pesticide input into the vineyards and reducing the carbon footprint of some of these vineyards.”
Kurtural and his team played a leading role in creating a multi-state mapping project, using Global Positioning System technology to help producers select potential vineyard locations on their land. Kurtural simply inputs latitude and longitude information into the program and the computer generates a map of the location and areas in that location best suited for grape production.
UK graduate student and full-time research assistant Brandon O’Daniel spends a lot of time in the field managing UK’s vineyard. He’s experimenting with different grape varieties, cropping and pest management systems. O’Daniel believes Kentucky’s grape and wine industry can have a solid future with proper education and management tools.
“It’s takes a lot of up-front investment, but as far as actually being an alternative for the farmer, I do think it has a lot of promise,” he said. “I think farmers are going to have to change their perspective on how they actually do agriculture and how they react with the public, but I think it has a lot of promise and a lot of potential here in the state.”
Patsy Wilson is also a graduate student and full-time research assistant with grape and wine industry aspirations after graduation. She spent a lot of time in the vineyard studying different grape varieties but focused on Vidal Blanc as a potential, cold-hardy variety for Kentucky producers. She spends a lot of time now in the lab researching Vidal Blanc and its potential as a premier wine grape for the state.
“I looked at different pruning severity levels as well as cluster thinning levels and saw how that affects the vine, including things like micro-climate and cold hardiness,” she said. “Then I took the grapes from that project, and I made wine with them to see how those pruning and cluster thinning treatments affect the wine. We take it as far as running the wine samples through different kinds of lab equipment, and then we actually run it through a trained tasting panel.”
Research in the vineyard often involves other disciplines such as entomology. The Japanese beetle is an enemy of grapevines. UK entomology graduate student and research assistant Derrick Hammons is studying environmentally responsible ways to combat the beetle in the vineyard.
“We are looking at the effects of defoliation on vine growth development, and this year we will be looking at crop yield. The idea is to convince growers that even though they see Japanese beetles, they don’t have to spray as much as they think they do,” he emphasized. “They can cut back their sprays and their use of sprays. That’s going to be more and more important, especially as fuel costs increase, and pesticide safety is always a concern.”
All in all, research in the vineyard and the lab is helping Kentucky grape producers increase the quantity and quality of their businesses. Producers continually are looking to UK to provide answers to tough questions, and thanks to a team of dedicated scientists and students UK is responding with solid, science-based solutions.
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