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: Sugars
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 …
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 …
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 …
The berry sugar loading : an indicator of grape quality
What is sugar loading? The sugar loading of grape berries (evolution of the quantity of sugars per berry), widely described by Pr. Deloire during the …
What frost can teach about vine nutrient and reserve use (part 2)
This is our second discussion on managing frost in the vineyard. With this blog post, we wish to generate discussions around the consequences following a …