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Mostrando ítems 21-36 de 36
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Late pruning modifies leaf to fruit ratio and shifts maturity period, affecting berry and wine composition in Vitis vinífera L. cv. ‘Malbec’ in Mendoza, Argentina
(Elsevier, 2023-04)Higher temperatures in recent years have advanced berry ripening and harvest date, decoupling berry sugar accumulation of anthocyanins final concentration and therefore reducing wine potential color. Late pruning is proposed ... -
Microwave-assisted extraction applied to Merlot grapes with contrasting maturity levels: effects on phenolic chemistry and wine color
(MDPI, 2019-01)Merlot grapes were harvested with three maturity levels (21.1, 23.1, and 25.1 Brix), and processed with or without the application of microwave-assisted extraction (MW). The detailed phenolic composition and color were ... -
Modeling vegetative vigour in grapevine: unraveling underlying mechanisms
(Elsevier, 2020-12)Mechanistic modeling constitutes a powerful tool to unravel complex biological phenomena. This study describes the construction of a mechanistic, dynamic model for grapevine plant growth and canopy biomass (vigor). To ... -
Molecular and ampelographic characterization of Pisco grapevine accessions conserved in a germplasm collection center of the Ica, Peru = Caracterización molecular y ampelográfica de accesiones de vides pisqueras conservadas en un centro de colección de germoplasma de Ica, Perú
(Facultad de Ciencias Agropecuarias, Universidad de Trujillo (Perú), 2021-12)Pisco is a distillate of cultural and economic importance for Peru, made from heterogeneous vine varieties called "pisqueras", covered by a Pisco Denomination of Origin legislation. The aim was to confirm the varietal ... -
Morphology and hydraulic architecture of Vitis vinífera L. cv. Syrah and Torrontes Riojano plants are unaffected by variations in red to far-red ratio
(2016)Plants have evolved an array of specific photoreceptors to acclimate to the light environment. By sensing light signals, photoreceptors modulate plant morphology, carbon- and water-physiology, crop yield and quality of ... -
Parámetros biológicos y poblacionales de Planococcus ficus (Hemiptera: Pseudococcidae) sobre dos cultivares de Vitis vinifera = Biological and populational parameters of Planococcus ficus (Hemiptera: Pseudococcidae) on two cultivars of Vitis vinifera
(2016)La cochinilla harinosa Planococcus ficus Signoret causa severos daños en viñedos argentinos. El objetivo de este trabajo es comparar los parámetros biológicos y poblacionales de P. ficus sobre los cultivares de Vitis ... -
Phenolic characterisation of red wines from different grape varieties cultivated in Mendoza province (Argentina)
(Wiley, 2012-02)Background: Knowledge of the chemical composition of wine and its association with the grape variety/cultivar is of paramount importance in oenology and a necessary tool for marketing. Phenolic compounds are very important ... -
Prospection and identification of traditional-heritage Peruvian grapevine cultivars (Vitis vinifera L.) from Ica and Cañete valleys
(Julius Kühn-Institut Institute for Grapevine Breeding Geilweilerhof, 2022-06-03)Interest in ancient and autochthonous cultivars has increased in recent years since they are directly related to the historical and cultural values of a region. Ica and Cañete valleys (Peru) have a long history of grapevine ... -
Relationships among Gene Expression and Anthocyanin Composition of Malbec Grapevine Clones
(2014-07)Anthocyanin profiles are commonly used for grapevine cultivar identification because it is currently accepted that this trait is closely related to their genetic characteristics. Nevertheless, the extent of the variation ... -
Soil water availability during spring modulates canopy growth and impacts the chemical and sensory composition of Shiraz fruit and wine
(Wiley, 2021-06)Background and Aim: Reduced rainfall during vine dormancy and supplementary irrigation during winter or at spring impact on vine growth partitioning. We assess the implications that induced changes on canopy growth due to ... -
Stomatal behavior of different grapevine cultivars in response to soil water status and air water vapor pressure deficit
(International Viticulture and Enology Society (IVES), 2010-03)Aims: Genetic variability in grapevine cultivars may influence their strategy to cope with drought through stomatal regulation of transpiration rate. The aim of the present study was to evaluate the stomatal sensitivity ... -
The effects of Saccharomyces cerevisiae strains carrying alcoholic fermentation on the fermentative and varietal aroma profiles of young and aged Tempranillo wines
(Elsevier, 2021-03)Ten different Saccharomyces cerevisiae strains fermented semi-synthetic musts containing a Polyphenolic and Aroma Precursor Fraction (PAF) extracted from Tempranillo grapes. Aroma compounds were studied by Gas Chromatography ... -
Transcriptional regulation of the anthocyanin biosynthesis pathway in developing grapevine berries in cultivar ‘Malbec’ by putative R2R3 MYB negative regulators
(Elsevier, 2019-11)In grapevine, proanthocyanins (PAs) and anthocyanins are obtained via the phenylpropanoid pathway. These metabolites are synthesized in specific tissues of the berry and accumulate in different developmental stages. The ... -
Varietal richness of grapevine (Vitis vinifera L.) from the Majes Valley, Peru: Identification, morphological characterization, ampelographic and genetic analysis
(Facultad de Ciencias Agropecuarias, Universidad Nacional de Trujillo (Perú), 2022-08-18)The “Majes Valley” in the province of Castilla – Arequipa Region, with a tradition in the production of wine and pisco, from grapevines introduced in the mid-sixteenth century, which are still preserved by some producers, ... -
Vineyard zoning of cv Bonarda argentine (Vitis vinífera L.), from Sentinel satellite images and three vegetation indexes = Zonificación de un viñedo de cv Bonarda argentina (Vitis vinífera L.) a partir de imágenes del satélite Sentinel y tres índices de vegetación
(Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, 2019-12)This study describes the results and conclusions obtained from vineyard zoning in Mendoza by using three vegetation indexes (NDVI, EVI and SAVI). Such indexes were calculated from spectral signals received by the Sentinel- ... -
Volatile Profile Characterization of Extra Virgin Olive Oils from Argentina by HS-SPME/GC-MS and Multivariate Pattern Recognition Tools
(2014-11)The distinctive aroma of virgin olive oil is attributed to a large number of chemical compounds of different classes such as aldehydes, alcohols, esters, hydrocarbons, ketones, furans, and other volatile compounds that are ...