Wines & Vines Home
   
 
Welcome Guest
LOGIN |  CREATE ACCOUNT
 
ADVERTISEMENT
 
 
 
01.18.2011  
 

Winegrapes Face Trials in Alabama

Researcher tests disease-resistant vinifera from California's UC Davis

 
by Paul Franson
 
 
alabama vineyard
 
Ten American and French- American hybrid grape cultivars tested at the Sand Mountain Research and Extension Center, Crossville, AL, at the beginning of their second season.
Auburn, Ala.—A researcher at Auburn University has planted Pierce’s disease-resistant grapevines developed at the University of California, Davis, to see if that state can produce traditional table wines.

As in every other state, interest in winemaking and grapegrowing is expanding rapidly in Alabama. The center of the Bible Belt, Alabama is one of the last places most people would expect to find wineries, but there are a dozen in the state, and more than 100 small vineyards.

Unfortunately, its climate makes Alabama hostile to vinifera grapes, so growers there depend on Muscadine (vitis rotundifolia, such as Scuppernong), other native grapes, French hybrids or other fruit other than grapes.

The problem is that Pierce’s disease is caused by Xylella fastidiosa, which clogs the xylem of many grapevines and other plants, starving them for water and killing them in a few years. Local native grapes like Muscadine are resistant to PD, but, although popular among locals, Muscadine wine is an acquired taste. Some other grapes such as Norton, which is apparently a hybrid of native Vitis aestivitis with a touch of vinifera, are also PD-resistant, and are grown by some Alabama growers as well as others in the southeast and central states.

The vines planted in Auburn by researcher Dr. Elina Coneva come from work conducted by Dr. Andy Walker at UC Davis. Walker is breeding hybrid vines that are primarily vinifera with a small element of Vitis arizonica, a native of the southwest and Mexico that is resistant to PD. These vines reportedly taste like vinifera, without the wild or foxy flavors found in hybrids of vinifera and native American labrusca grapes.

Demand for vinifera

Elina Covena
 
Elina Coneva holds 2-year-old grape selections from the University of Arkansas grape breeding program tested at the North Alabama Horticulture Research Center in Cullman.

Coneva planted vines that are 87.5% Vitis vinifera with the rest arizonica. The vines are from Chardonnay and Syrah parents. Coneva says the demand for vinifera grapes is very high among Alabama wineries, and she’s planted a number of experimental vineyards across the state.

She planted Walker’s vines at Auburn's Chilton County Research and Extension Center near Jemison in the center of the state, which she said has very high PD pressure from a number of sharpshooter leafhoppers that carry the disease. She told Wines & Vines that growing grapes in southern Alabama near the Gulf of Mexico is very challenging, while the hills and even mountains of northern Alabama are more promising.

At the experimental station on Sand Mountain, a huge 1,500-foot-high sandstone plateau in northeastern Alabama that’s the coolest part of the state, Coneva is testing other grapes including Muscadine and various French-American hybrids. She’s also testing table grapes developed by the University of Arkansas.

The Alabama Wineries and Grape Growers Association raised money to combine with funding from Auburn University to conduct the experiments. Coneva is an assistant professor in the horticulture department and an extension specialist who works with farmers on small fruit crops and berries.

Jim Kamas at Texas A & M is also testing the same set of selections.

If the vines succeed, they could lead to far more grapegrowing across the eastern and southern United States. The results should also lend validity to Walker’s work, which is primarily directed toward improving California viticulture.

Update on Walker's work
Walker reported that he made wines from the next-generation 94% vinifera (the vines Coneva received were 87.5% vinifera) last year and will be evaluating them soon. 

Walker also made wines from these in 2009 and he reports that they were very good with no hybrid character (typical blue purple pigments and herbaceous aromas). 

In addition, he produced about 2,000 seedlings of the generation beyond that (97% vinifera) last year; many will fruit for the first time this summer/fall. He said, “I hope to select types for commercial release from the 97% vinifera generation.”

Walker notee that although many native vines are resistant to PD, he has focused his research on the arizonica resistance, because it's controlled by a single gene. “We have genetic markers to the resistance that has allowed us to move very rapidly through the generations on a two-year cycle and have half of all the progeny with PD resistance.”

He added that the research has used other resistance sources too, including Vitis aestivalis, but their resistance is controlled by many genes and effective genetic markers for resistance are not yet known. “With multi-gene resistance, there are relatively few resistant progeny to select from each generation, so the chances of finding the ‘best’ ones are much lower.” He continued, “We are looking at several other resistance sources, but we do not have advanced (greater than 90% vinifera) generations yet.”

SHARE »
Close
LATEST READER COMMENTS
 
 
Posted on 02.02.2011 - 08:17:30 PST
 
JULES J. BERTA VINEYARDS & WINERY in Albertville, ALABAMA are growing vitis vinifera grapes and have been very successful. We have five acres and future plans to put up to 15 acres on site. The vines age in range from 11 to 23 years old.
 
Jules
 
Albertville, AL USA
 

 
Posted on 02.01.2015 - 10:50:23 PST
 
Great article! Dr. Elina Coneva will be speaking about Vitis vinifera production in the South at the upcoming AWGGA Conference in March, 2015. Agenda at: http://www.awgga.org/Conference.html. Pat Smith, AWGGA Board Member, Info@AWGGA.org
 
Guest
 
 
 
CURRENT NEWS INDEX »


 
Wines & Vines Home
 
866.453.9701 | 415.453.9700 | Fax: 415.453.2517
65 Mitchell Blvd., Ste. A San Rafael, CA 94903
info@winesandvines.com
Wine Industry Metrics
 
Off-Premise Sales » Month   12 Months  
February 2015 $643 million
7%
$7,954 million
5%
February 2014 $601 million $7,560 million
     
Direct-to-Consumer Shipments » Month   12 Months  
February 2015 $132 million
4%
$1,823 million
14%
February 2014 $126 million $1,598 million
     
Winery Job Index » Month   12 Months  
February 2015 275
26%
238
16%
February 2014 219 206
     
 
MORE » Released on 03.13.2015
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Direct To Consumer
Wine Shipping Report
2015
 
Download full report »
 
 

Practical Winery & Vineyard Library
 
Search the PWV archive »
 
 

CALENDAR
  • April 17
     
    Newsom Grape Day
     
  • April 17-19
     
    Earth Day Food & Wine Festival
     
  • April 21
     
    Ahead of the Curve
     
  • April 25-27
     
    World Wine Meetings America
     
  • MORE »
 

READER COMMENTS
 
Article: Is Organic Grape Growing Possible in the East? »
 
Some Long Island, NY, vineyard farmers are already using nearly organic methods. They have worked...
Reader: envcat
 
Article: Loosening AVA Regulations »
 
When I see 'Napa Valley'on a wine label, it doesn't only suggest the flavors I...
Reader: Guest
 
Article: Loosening AVA Regulations »
 
I should be able to live in MA, buy Napa, CA grapes, truck them across...
Reader: Guest
 
Article: The Stark Disparity in Critical Tastes »
 
The disparity is all well and good for consumers. More opinions and a kind of...
Reader: Guest
 
Article: Commercial Teaching Winery for the Midwest »
 
Please visit www.lakemichigancollege.edu/wine for more information about the program.
Reader: Guest
 
 


Directory/Buyer's Guide — Your Wine Industry Marketplace
 
 
WINERY SEARCH
 
 
Advanced Search »
SUPPLIER SEARCH
   by Product
 by Company Name or Brand
 
Browse by Category »
2015 Directory/Buyer's Guide
The Wines & Vines Directory and Buyer's Guide
 
 
EXPANDED ONLINE SEARCH INCLUDED WITH PURCHASE
 
ORDER NOW »
 
LEARN MORE »
 
 
Wines & Vines Magazine
 
 
LEARN MORE »
 
SUBSCRIBE »
 
Digital Edition Now Available!
Wines & Vines Digital Edition Now Available
 
LEARN MORE »
 
ORDER NOW »
 
 
The Wines & Vines Online Marketing System
 
The Industry Standard winery marketing application
 
FREE LIVE DEMO »
 
VIEW VIDEO »
 
 
 
 
Latest Job Listings
 Staff Accountant
 Rutherford, CA
General Administration and
 Harvest Cellar Worker
 Healdsburg, CA
Cellar, Lab and Production
 Harvest Cellar Hands 2...
 Dundee, OR
Cellar, Lab and Production
 Territory Sales Rep-Ri...
 Riverside/San Bernardino, CA
Sales and Marketing
 Area Sales Manager - S...
 Sacramento, CA
Sales and Marketing
 Sales Representative
 New York, NY
Sales and Marketing
 Concierge And Host
 St. Helena, CA
DTC, Tasting Room and Retai
 Fine Wine/Spirits Sale...
 Hudson Valley, NY
Sales and Marketing
 Sales Representatives
 Various, MA
Sales and Marketing
 Accountant
 Saint Helena, CA
Finance
 
More Job Listings >>
Follow Us On:
 
 





Home  |  About Us  |  Editors  |  Subscribe  |  Print Edition  |  Digital Edition

Advertise  |  Site Map  |  Contact Us  |  Privacy Policy
 
 
Copyright © 2001-2015 by Wine Communications Group, Inc. All Rights Reserved.
No material may be reproduced without written permission of the Publisher.
Wines&Vines does not assume any responsibility for any unsolicited manuscripts or materials.