CONTEXT Research has demonstrated that relationships exist between berry compositional changes during ripening and seasonal vine water deficit variations (here). The purpose of this blog is …
Effect of Sap Flow Profile on Berry Sugar Accumulation
Category: Period 4
Managing vine water deficit with canopy height
CONTEXT Regardless of irrigation regime, canopy size can affect yield and berry quality attributes particularly under semiarid conditions. It may sound counterintuitive at first …
Linking vine water deficit with wine color density
CONTEXT An australian researcher team led by Cooley have compared different levels of water deficit severity to analyze their effect on berry and wine composition …
ETS Laboratories smoke taint research
Perhaps the single most impactful and devastating series of events from the 2017 Napa vintage were October’s wine country fires. As the final presenter of …
How well can Pinot Noir sustain drought conditions
The goal of the swiss study presented by Dr Zufferey was to investigate the impact of water stress on vine hydraulics, berry composition and wine …
A review of Biodynamic and Organic viticulture (Giesco minutes)
In this blog we discuss an overview of the different comparative studies involving biodynamic vs organic vs. conventional farming. Results presented by Dr. Stoll focus …
Bioclimatic indices of the ripening period (2) : Thermal conditions at night
The Cool Night Index The Cool Night Index was created to study nocturnal conditions of grapes ripening according to the different wine-making regions (Tonietto, 1999 …
Sluggish ripening dynamics: who is the culprit in 2017 in Northern California?
This discussion is a follow up with our last blog on the 2017 maturation What is the situation end of september? A general disorder in sugar …
2017: Vintage Effect on Harvest Decision for Napa Cabernet
Harvest decision 2017: A ripe Cabernet Sauvignon in Napa “should be worth the wait!” We discuss a preliminary analysis of the 2017 vintage effect on …
What is the link between root temperature, vine reserve and berry ripening?
If you read this blog you are probably interested in understanding the complexity of vine response to contrasted environmental conditions. Everyday scientific results shed new …