Grape anthocyanin content and composition exhibit a distinctive profile among red varieties, determining wine color intensity, hue and stability.
A new viticulture has been developing in Uruguay in the last years, in order to improve the quality of the wines and to increase the typicity generated by the terroir.
The technological importance of phenolic compounds, especially flavonoids, is well known.
The irrigated vineyards of the Paso Robles region of California depend upon groundwater for irrigation; this groundwater supply is currently impacted by excessive withdrawals.
Two grapevine training systems, vertical shoot positioned (VSP) and sprawl, were compared for their effects on yield, must composition and polyphenolic evolution in Vitis vinifera L. cv Tempranillo grafted onto 140R.
Global warming advances ripening of grapes to warmer months of the growing season, impacting fruit physiology and threatening wine typicity.
Many vineyards in Mendoza, Argentina, are being modified to new vine-training systems that allow mechanical canopy management.
Soil management practices such as mulching or cover crop are agricultural practices that can help to modulate vegetative development and as a consequence, reduce water inputs.
The effect of fruit zone leaf removal and harvest maturity level was studied in a commercial Cabernet-Sauvignon vineyard in the Maule Valley (Chile) during three growing seasons from 2013/2014 to 2015/2016.
Every year, after the inflorescences counting in spring, a certain loss in the number of clusters was observed at the harvest.
This work starts from the idea that the nitrogen application in pre-harvest would have positive effects on biomass accumulation of the vine plant before its winter rest, and that would enable a better and faster sprouting in the following season, without sacrificing the oenological quality of the grapes.
Production of high quality grapes requires balanced vines, assessed through leaf to fruit ratio or Ravaz Index (RI).
At harvest, the composition of the grape berries is the result of the interaction between physiological processes genetically programmed during the developmental cycle and responses to the imposed environmental parameters that induce more or less pronounced stress conditions.
Vines under minimal pruning reach a balance between vegetative growth and yield.
Maintaining grapevine productivity with limited inputs is crucial in Mediterranean areas.