CONTEXT Regardless of irrigation regime, canopy size can affect yield and berry quality attributes particularly under semiarid conditions. It may sound counterintuitive at first …
Managing vine water deficit with canopy height
Category: Bacchimeter
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 …
Fruit Color Affects Wine Composition
What is the relationship between fruit color and wine color concentration? A strong, positive relationship exists between anthocyanin (i.e. color) concentration in grape and in wine …
Why berry sugar monitoring is not just for alcohol?
In this blog we discuss why berry sugar monitoring is important beyond sugar concentration. Changes in sugar accumulation reflect other chemical changes As berries accumulate sugars, …
Harvest under dry climates: High Sugar vs. High Color.
In this blog we discuss why adapting harvest date to a warming environment is challenging …and why you may not have to trade off sugar concentration to …
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 …
Sugar loading dynamics in California: varietals & vintage effects?
The graph below shows the average sugar loading of 250 blocks of Californian Cabernet Sauvignon. It is based on more than 2 500 analyses of sugar …
How to design a vineyard sampling strategy accounting for spatial variability?
One of the main challenges for a winegrower before harvest is : “where is it best to sample?” and “how many locations do I need to …
How do climate and irrigation affect wine tannin?
In a previous post, we talked about what scientists have learned recently about tannin structure and activity. Tannin is one of the key determinants of wine …