Preliminary results on the effect of different organic mulching on wine polyphenol content
Soil mulching is an interesting strategy to reduce soil evaporation, assist in weed control, improve soil structure and organic content, increase soil water infiltration, and decrease diurnal temperature fluctuations
Influence of early leaf removal on the yield and composition of the grape of three white varieties in the D.O.Ca.Rioja (Spain)
Defoliation is one of the green operations more used in viticulture, whose results can be very different depending on the variety and the moment of realization. Early leaf removal consists of the elimination
Application of treatments to delay the ripening of grape varieties cultivated in valpolicella
Winegrape cultivars are particularly sensitive to temperature and recent changes in climate have advanced the onset of berry ripening, resulting in unbalanced fruit composition at harvest.
Evolution of grape aromatic composition in cv. Ugni blanc
Cognac is a protected appellation of origin where world-famous brandies are produced. These brandies are obtained by the traditional double distillation of wines from Ugni blanc cultivar
Chemical composition of cool-climate Sauvignon blanc grape skins clones during ripening
Sauvignon blanc is the most important variety in cool valleys in central Chile accounting 15,522 ha which corresponds to 42.4% of the cultivated surface with white varieties in Chile
Development of a new indicator of grape skin ripening in relation to Botrytis cinerea susceptibility
The bunch rot induced by Botrytis cinerea is an important disease of grapevine that causes a diminution of grape quality and a considerable yield loss leading to an economic loss
Effect of grape harvest time on the metabolomic profile of ribolla gialla monovarietal sparkling wines
The timing of grape harvest is crucial factor to be considered in the winemaking process, as delayed harvest increases the content of varietal aromas, esters, aldehydes
Evaluation of glutathione content in four white varieties in the d.o. Ca. Rioja (Spain)
Glutathione is a tripeptide that is mainly found in reduced form in grapes. It generates during the maturation of the grape, increasing significantly after veraison [1].
Grape texture characteristics are linked to one major qtl
Berry texture and berry skin mechanical properties have high agronomic importance, related to quality and marketing requirements of wine, table and raisin grapes.
Within-vineyard spatial variation impacts methoxypyrazine accumulation in the rachis of Cabernet-Sauvignon
To investigate the impact of spatial variation in vine vigour on the accumulation of methoxypyrazines in the rachis of Cabernet-Sauvignon. Cabernet-Sauvignon rachis has been shown to contain significantly higher concentrations
Effect of application of kaolin and pinolene on grape berry cell death, berry shrinkage, and ethanol accumulation
Cell death in Vitis vinifera L. berries late in ripening and berry shrinkage (loss of mass) can decrease yield and reduce grape quality in cultivars such as Cabernet Sauvignon
Characterization of 25 white grape varieties from the variety collection of ICVV (D.O.Ca.Rioja, Spain)
The effects of climate change produce an increase in sugar concentration and a decrease in acidity, without reaching the optimum grape phenolic maturity [1]. The aim of this work was to characterize 25 white grape varieties
Investigations into the effects of a commercial organic fertilizer and of quality compost on the soil and the vines
The influences of quality compost A+ and of a commercial organic fertilizer based on dry mash from bioethanol production, blackstrap molasses, vinasse, PNC (potato nitrogen concentrate) and CSL (corn steep liquor) on the humus content, on the mineral nitrogen content in the soil, in the must and in the vine leaves, on pruning wood
Elicitors application in two maturation stages of Vitis vinifera L. cv Monastrell: changes on the skin cell walls
AIM: In a recent study, it was determined that the mid-ripening period is the most suitable for the application of methyl jasmonate (MeJ), benzothiadiazole BTH and MeJ+BTH on Monastrell grapes, to favor maximum accumulation of phenolic compounds at the time of harvest. However, the increase in the anthocyanin content of
Volatile and phenolic composition of Agiorgitiko wines from eight different areas of PDO Nemea zone
AIM: Agiorgitiko (Vitis vinifera L. cv.) is the most cultivated red grapewine variety in Greece1 located mainly in Nemea region, the largest PDO zone in Greece2. Although Agiorgitiko is considered as one of the most interesting red grape varieties, not only in Greece3, but also at international level4,5, however, there is a lack of knowledge
Is it possible to approximate the technological and phenolic maturity of grapes by foliar application of elicitors?
The increase in the temperature and the more severe water stress conditions, trends observed in recent years as a consequence of climate change, are leading a mismatch between the technological and phenolic maturity of grapes
Preliminary evaluation of agronomic and enological properties of preselected grapevine clones of ‘Tempranillo’ and ‘Graciano’ in DOCa Rioja (Spain)
Cultivation of a few number of clones is causing the loss of vineyard biodiversity, resulting in the disappearance of biotypes that could be of interest to face future challenges,
Influence on grape aroma of nitrogen compounds and elicitors foliar applications in vineyards
The grape volatile compounds determine the wine quality and typicity [1]. Thus, looking for agronomic tools to improve its composition it is of great interest in the sector [2]
Foliar application of specific inactivated yeast to enhance the varietal aroma precursors accumulation on cv. Traminer
The production of grapes with a balanced composition is one of the main goals that agronomists and oenologists pursue to produce premium quality wines.
Keg wine on tap: a sustainability-oriented innovation
How could the wine industry be more sustainable? To answer this, an Interreg French-Swiss project gathered researchers to help a French keg producer and a Swiss wine distributor make their innovation more ecological, social and economical. What innovation? A reusable plastic keg with a disposable airtight pouch inside.