Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"canopy management"”.
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Viticultural techniques of canopy management to mitigate the effects of global warming
The overall aim of this thesis was to assess the effects of different cultural techniques on grape yield components and fruit quality. In particular, within the climate change scenario, their effectiveness of delaying grape technological ripening and improving the anthocyanins-to-sugar ratio was …
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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
… powdery mildew development may assist in better management of this disease through chemical and cultural means. 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 …
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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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Good Grapes - Good Wine.
… location, trellis options, vine selection, and canopy management, along with when to harvest are discussed. While winemaking is the final phase in the pursuit of the winemaker's passion, it is but a simple formula. The beginning of a good wine is in a good vineyard. This study includes a …
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Effect of canopy manipulation on rot incidence and rot metabolites of White Riesling (Vitis vinifera L.) grapes
… of grape rot was measured for three seasons. Canopy modification by both topping and ethephon treatment increased sunlight penetration into the fruiting zone. Fruit rot incidence and the concentrations of rot-associated metabolites were significantly and mutually correlated. Fruit rots and rot …
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Root restriction, under-trellis cover cropping, and rootstock modify vine size and berry composition of Cabernet Sauvignon
… (PPFD) was increased by 234% in RBG vines. Timed canopy management tasks indicated that RBG canopies required about half the labor time of NRM canopies. Anthocyanin concentration and total phenolic content were increased by 20% and 19% respectively in RBG fruit. CC increased fruit-zone PPFD by …
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Spatiotemporal Variability in the Macroinvertebrate Community of a Small Coastal California Stream, Little Creek, Davenport, California
… the expected biological response to riparian canopy manipulation. Seven study reaches were established in 2015. These study reaches were evenly spaced throughout the Little Creek watershed, an approximately 4.8 km<sup>2</sup> drainage characterized by steep inner-gorge areas and dense riparian …
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Effect of vineyard management of Cabernet Sauvignon (Vitis vinifera L.) grape glycosides
… undertaken to observe the influence of vineyard management on grape glycosides. In the first study, three crop levels from mature Cabernet Sauvignon (<i>Vitis vinifera</i> L.) vines grown in eastern Virginia were evaluated for their influence on grape glycosides, expressed as red-free glycosyl …
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Computational Canopy Models For Precision Measurement And Adaptive Management Of Grapevine Performance
… spatial patterns and their effect on precision management have not been extensively studied. The experiments presented here were designed to: 1) improve the precision and increase the spatial resolution of commonly used viticultural research methods with the goal of identifying, characterizing …
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Exploring the chemical properties of polyphenols in cold-hardy grape cultivars
… acids in grapes can be affected by vineyard management techniques, such as leaf removal. For instance, increasing sunlight exposure to grape clusters through these canopy management techniques can reduce acidity and may enhance polyphenol development. While the effects of these techniques on …
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Refining Fruit-Zone Leaf Removal for Red-Fruited Bordeaux Grape Varieties Grown in a Humid Environment
Current fruit-zone management recommendation in the eastern US aims for 1-2 basal shoot leaf layers after fruit set to limit fungal disease and sunburn incidence, and prevent extreme heating of grapes. The goal of this work was to assess if fruit-zone leaf removal to an uncommonly greater extent, …