News from Cornell's Viticulture and Enology Program
Issue 12, November 2012
Fifteen years of vine root growth studies in Concords (pdf)
Using a miniature camera lowered into the root zone, Cornell physiologist Alan Lakso and Penn State root biologist David Eissenstat tracked seasonal growth of fine Concord roots over several growing seasons. Here is a summary of what they found.
5 Questions for Terry Acree
A professor of food science at Cornell's Geneva NYSAES campus, Terry Acree is a biochemist who focuses on challenges in flavor chemistry, including wine, with particular emphasis on aroma chemistry.
Viticulture 2013: Joint conference returns to Rochester in February
Fifth in a series dating back to 2000, Viticulture 2013 brings national and international speakers in viticulture, enology, and marketing together for a three-day conference and trade show.
Brown marmorated stink bug in the Hudson Valley
Entomologist Peter Jentsch, based at Cornell's Hudson Valley Laboratory, is tracking populations of the invasive brown marmorated stink bug and its impact on fruit crops including grapes.
Student-run organic vineyard a classroom for collaborative learning
A block of 500 grapevines at Cornell Orchards, managed by students and used for teaching, has been certified organic by the Northeast Organic Farming Association of New York.
This article contains sulfites
S02 protects wines from microbial spoilage and browning. Ending up with the right amount in your finished wines requires frequent measurement, because of compounds in wine that bind S02.
IN THE NEWS
- Governor Cuomo hosts the 'Wine, Beer, and Spirits Summit'
The governor announced a new tourism campaign and regulatory reforms at the October 24 event in Albany.
- Northern Grapes Project: Researchers at several universities work to improve cold-climate wine
Trade publication Wines and Vines writer Andrew Adams recaps work funded by the USDA Specialty Crops Research Initiative.
- Dr. Lance Cadle-Davidson is selected for the 2012 T.W. Edminster Research Associate Award
The National Grape and Wine Initiative announced the award, given to USDA Agricultural Research Service scientist Cadle-Davidson, based at Cornell's Geneva campus. His plan for isolating the ren4 powdery mildew resistance gene was rated the best among the 50 proposals selected for funding through the agency’s 2012 Postdoctoral Research Associate Program.
- Lake Erie Regional Grape Program Tests Yield Monitor (video)
Viticulturists Terry Bates and James Taylor are testing a simple yield monitor to produce spatial yield maps in Concord vineyards. This video explains how it works.
RESEARCH IN PLAIN ENGLISH
- Assessment of the validity of maturity metrics for predicting the volatile composition of Concord grape juice (pdf)
Juice parameters that account for acidity (titratable acidity, pH, or the ratio of soluble solids to titratable acidity) are better predictors of juice aroma composition than traditional brix measurements, and their utilization may assist in reducing the incidence of herbaceous off-aromas in Concord grape juice.
- Sampling and estimating average pruning weights in Concord (pdf)
CLEREL researchers James Taylor and Terry Bates used the data from an intensive survey of pruning weights to determine the optimal sample size and sampling method to estimate the average vine size in vineyard blocks.