Impacts of natural yield variance on wine composition and sensory quality of Riesling and Cabernet franc
This study investigated impacts of naturally-varying yields on Riesling and Cabernet Franc wine composition and sensory attributes.
Evaluation of the variability of skin thickness and berry physical properties in cv. ‘Grenache’ grown in different areas across the Ebro River Valley (Spain)
The berry skin plays a very relevant role in red wine grape varieties, as the epidermal and subepidermal cells contain anthocyanins and other phenolic compounds that remarkably affect wine quality.
Evaluation of the polyphelolic component and sensory characterization of wines produced from grapes with different potential alcohol
While a general rise in average temperatures leads to the production of more alcoholic wines, it is difficult to obtain proper phenolic maturity without simultaneously achieving high sugar levels in the grapes.
Contributions for the sustainability of steep slope vineyards – good agricultural and environmental practices in the upper Douro vineyard world heritage
The Upper Douro Vineyard (ADV) passes on to this generation and most certainly to the following, the History of Men who worked this land and transformed it in his favour.
Mountain viticulture, hot climate and the art of blending the port wine triad
The Douro Demarcated Region (DDR) is an extraordinary, living example of Mountain Viticulture in Hot Climates.
Influence of vintage and variety on phenolic compounds of Brazilian red wines from a new wine-producing region
Phenolic compounds, specially flavonoid compounds, are one of the most important parameters in assessing the quality of wines and possible responsible for beneficial properties of wines.
Correlation between sensory and physic-chemical characterization of tropical wines
The purpose of this study was to characterize the tropical Brazilian wines, first vintage of 2008, by instrumental and sensorial analysis.
Resveratrols as target compounds in the evaluation of antioxidant activity of Southern Brazilian red wines
Resveratrols (cis-resveratrol, trans-resveratrol, cis-piceid, trans-piceid) were quantified by HPLC-DAD in Vitis vinifera red wines, cv. Cabernet Franc, Merlot, Sangiovese and Syrah, 2006 and 2007 vintages, from the São Joaquim region, a new grape growing region at southern Brazil.
Grapevine berry colour mutants: molecular identification and phenolic composition
Portugal, one of the Mediterranean countries with highest density of autochthonous cultivars, has 169 red, 152 white, and 22 grey cultivars approved for wine production (Ordinance 380/2012, 22nd November).
Potassium phloem unloading in late ripening grape berries of Vitis vinifera (L.) cv. Probus
The aim of this investigation was to examine the possibility of using “berry-cup” technique to study K phloem unloading and accumulation of K in ripening grape berries, in field conditions.
Decreasing the alcohol level and ph in wines by the “double harvest” technique
Many vineyards along the world produce high yield and high alcohol level wines because of different factors, so bunch thinning technique has become more usual in order to balance the production.
Validation of the diagnosis and recommendation integrated system (DRIS) in the viticulture of Utiel-Requena region
The Diagnosis and Recommendation Integrated System (DRIS) consists of an integrated set of norms representing calibrations of plant tissue composition, soil composition, environmental parameters and farming practices as function of yield of a particular crop.
Viticultural aspects and their influence on the assimilable nitrogen content in grapes
There are several aspects influencing the quality of grapes. This paper deals with the effect of variety, rootstock and vintage on levels of yeast assimilable nitrogen in grape musts.
Nutrient up take and distribution in early ‘Isabella’ grapevines on two rootstocks and organic management
The Brazilian viticulture is mainly characterized by the cultivation of American grapevines (Vitis labrusca L.), between them cv.
Nitrogen uptake and distribution in ‘Niagara Rosada’ grapevines, in function of rootstock and green manure
Green manures have become an important option for recycling nutrients in organic cropping. However, its benefits are often not obtained in the short term.
Cabernet-Sauvignon grown on ten rootstocks and two different soils: edaphology, vine nutrition and fruit quality
A total of 704 Cabernet Sauvignon (CS8) vines were grafted on 10 different rootstocks and compared to an own-rooted control as part of a new vineyard planting on the terraces above the Estrella River in the Paso Robles AVA.
Quantitative analysis of vegetative growth in response to nitrogen stress for Vitis vinifera L. cv. Syrah from pot experiments
Maintaining grapevine productivity and wine quality with limited inputs (drought, low nitrogen supply) is crucial in Mediterranean areas.
Response mechanisms of grapevine rootstocks to severe iron deficiency
In many important viticultural areas of the Mediterranean basin, plants often face prolonged periods of scarce iron (Fe) availability in the soil.
Graft union abnormality: some impacting factors
Factors involved in incidence of abnormal, excessive graft union enlargement were investigated. Material of Sauvignon blanc, Cabernet Sauvignon, Richter 110 and 101-14 Mgt was collected. Combinations of Sb/R110, CS/R110, Sb/101-14 Mgt, and CS/101-14 Mgt were warm and cold callused.
Genetic and ampelographic identification of different minority varieties known as ‘Monastel’ and ‘Maturana’ in Rioja (Spain)
The ‘Monastel’ and ‘Maturana’ varieties were grown in Rioja (Spain) during the XIX century, but they almost disappeared.