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 (source). However, all anthocyanins accumulated in the skin are not completely extracted into the wine. For that reason, even if a relationship exists, the total amount of anthocyanins  extracted […]

The concept of growing degree days (GDD) Vineyards are particularly sensitive to climate and especially temperature. That is why phenological vine data has been used to reconstruct temperature series over long past periods (Le Roy Ladurie, 1971; Chuine et al., 2004). For example, Garcia de Cortazar Atauri et al. (2005) […]

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 sample to get a reliable estimate?” In this blog we discuss how to design a sampling scheme to best capture vineyard spatial variability. The plant […]

NDVI is an English acronym meaning Normalized Difference Vegetation Index, which could be translated as a Normalized Vegetation Index. This index reflects the quantity of so-called “photosynthetically active” biomass. It is calculated according to the formula: Where R and PIR are respectively reflectances measured in the red and near infrared […]

Recently Fruition Sciences has received questions from prospective customers on using funding from the State Water Efficiency and Enhancement Program (SWEEP) to finance their irrigation system upgrades, including the purchase of Sap Flow sensors. We understand that using plant-based sensors as irrigation trigger can be a major investment for many […]

The 2016 Napa Vintage Report took place on January 18th, 2017, at the Westin Verasa in Napa, CA.  The gathering was the seventh iteration of the annual conference in Napa. The 2016 Vintage Report aimed to provide an engaging platform for winemakers and grape growers to share their experiences with the […]

Who would have betted on the 2016 Bordeaux vintage this summer? We believe very few people did, and neither did we. However, now that the wines have been drained and are aging in the barrels, first tasting reports have come back positive. Compared to last year, this outcome is pleasantly surprising. Let’s revisit […]