Wines & Vines

July 2012 Technology Issue

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WineEast pBn, fruitfulness and carbohydrate concentration at both sites. C.M. Cox, A.C. Favero, P.R. Dry, M.G. McCarthy, and C. Collins, amer. J. enol. Vitic., published ahead of print March 20, 2012, doi: 10.5344/ajev.2012.11012. Contact the senior author: School of Agriculture, Food and Wine, University of Adelaide, Waite Re- search Institute, PMB 1, Glen Osmond, SA 5064. Riparia was the most effective rootstock limiting vegetative development of Cabernet Sauvignon. Vegetative growth of Cabernet Cover crops, rootstocks and root restriction were evaluated in Virginia to regulate vegetative growth of Cabernet Sauvignon grape- vines. This was a complicated, three-factor experiment involving two cover crops [row-middle and under-trellis cover crop (uTCC), row-middle-only cover crop combined with 85cm weed-free strips in the vine row], three rootstocks [riparia Gloire (Riparia), 420a and 101-14], and root restriction, whereby vines were either planted AS GOOD AS IT GETS. Natural Corks Champagne Corks Twinline Corks Bartops VISION® G-Cap® Wine Stopper Screw Cap Sales Representatives Chris & Liz Stamp info@lakewoodcork.com Lakewood Cork 4024 State Route 14 Watkins Glen, NY 14891 lakewoodcork.com 607-535-9252 607-535-6656 Fax 64 Wines & Vines JULY 2012 Research in root-restrictive (rr) fabric bags at vineyard establishment or planted without root restriction. root restriction and uTCC were independently effective in sup- pressing vegetative development as measured by rate and seasonal duration of shoot growth, lateral shoot development, trunk circum- ference and dormant pruning weights. riparia was the most effec- tive rootstock in limiting vegetative development among the three evaluated. under-trellis cover crop reduced cane-pruning weights by 47% relative to vines grown on herbicide strips. Canopy architec- ture was generally improved by both uTCC and by root restriction, but generally unaffected by rootstock. The principal direct effect of the uTCC and the root-restriction treatments was a sustained reduction in stem water potential. results suggest practical measures can be used to create a more favorable vine balance under conditions of variable rainfall, such as exist in the eastern united States. T.A. Hatch, C.C. Hickey and T.K. Wolf, amer. J. enol. Vitic. 62:298-311 (2011). Contact the senior author: Virginia Tech, (540) 869-2560; thatch@vt.edu. Drought-tolerant grape root system The role of root systems in drought tolerance is a subject of very limited information compared with above-ground responses. ad- justments to the ability of roots to supply water relative to shoot transpiration demand is proposed as a major means for grapevines When You Require A Consistent Supply GRAPE SOURCING: WINERY SUPPLY: TRANSPORTATION: By variety, appellation or specification All equipment and supplies for all phases of winemaking Logistical network operating daily from coast to coast Your Source For Quality Products including: fresh grapes, juice and bulk wine 101 Reserve Road * Hartford, CT 06114 * 877-812-1137 * Sales@JuiceGrape.com

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