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Showing 1 to 9 of 9 for “"vine vigor"”.
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PALISSAGE: AN ALTERNATIVE TO MECHANICAL HEDGING IN VITIS VINIFERA VINEYARDS
Hedging grapevines is a common canopy management practice in Northeast vineyards. Hedging can manipulate vine vigor, yield, fruit composition, wine quality, winter hardiness, and canopy microclimate. Although mechanical hedging is common practice in many vineyards, it is criticized as being a …
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Using GPS, GIS & remote sensing to understand Niagara Terroir
… and composition variables were related to vine water status and both yield components and grape composition, and whether multispectral high definition airborne imagery could be used to segregate zones in vineyards to target fruit of highest quality for premium winemaking. The study took …
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Efficacy of the biological control agent Rhizobium vitis ARK-1 against tumorigenic Rhizobium vitis, the causal agent of grapevine crown gall
Grapevine crown gall causes significant economic damage in vineyards and nurseries worldwide. Infected vines are not curable due to irreversible genomic transformation by the tumorigenic bacterium Rhizobium vitis. Crown gall results in a gradual decline in yield and vine vigor, then the complete …
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Sunlight'S Influence On Grapevine Powdery Mildew: Direct Effects On Pathogen Development And Attendant Consequences Of Canopy Management And Vineyard Variability
… Variability of sunlight distribution within vineyards was quantified via the enhanced point quadrat analysis technique (EPQA). Using EPQA the number of canopy shading layers and the fruitzone photon flux within individual vines were shown to have a significant correlation with fruit disease …
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Vineyard floor management in the Finger Lakes region: physiological and microbial perspectives
Excessive vine vegetative growth in wet, cool climates increases management costs and compromises grape quality. However, the standard practice of bare soil under vines exacerbates the vigor problem. Previous studies found that using under-vine cover crops reduced vine vigor in young vineyards but …
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Assessment of Vineyard Nitrogen Management upon Grape Chemistry
To combat excessive vine vigor, many vintners have employed intensive cover cropping techniques. While cover crops provide a multitude of benefits to the farming system, they can compete for nutrients and water. The seemingly ubiquitous adoption of cover crops in the Eastern United States has led …
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Evaluation of Nitrogen Management Schemes upon Vine Performance in Cover Cropped Vineyards
Vineyards in the Eastern United States are often prone to excessive vegetative growth. In order to suppress excessive vine vigor, many viticulturists have employed cover cropping strategies. Cover crops provide a myriad of agronomic benefits, however they are known to compete with the vine for …
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Evaluation of Nitrogen Management Schemes in Cover Cropped Vineyards
Vineyards in the Eastern United States are often prone to excessive vegetative growth. In order to suppress excessive vine vigor, many viticulturists have employed cover cropping strategies. Cover crops provide a myriad of agronomic benefits, however they are known to compete with the vine for …
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The Effect of Complete Vineyard Floor Ground Covers and Root Pruning on Cabernet Sauvignon
Complete vineyard floor cover cropping and root pruning (RP) were evaluated for their ability to regulate excessive vegetative growth and improve berry and wine composition of ‘Cabernet Sauvignon’ (Vitis vinifera L.). Treatments were: tall fescue (Festuca arundinacea Shreb.) ‘KY-31’ and ‘Elite II’, …