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 light on plant mechanisms which, if they are properly understood, can help the winegrower optimizing his practices. Today, we discuss the relationship between :root temperature, […]

Leaving more growing nodes per vine at pruning (to increase vine productivity)  and applying  deficit irrigation strategies (to increase fruit and wine quality) are are widely used  practices, particularly in high yielding vineyards under  warm climate. However one may ask how those practices impact vineyard longevity and sustainability ? To […]

How can a winegrower harness vineyard spatial variability to make better wines?   Numerous studies carried out since 2000, on irrigated and non-irrigated vineyards have shown that vineyards exhibit great spatial variability for many factors such as yield or berry quality components (Santesteban et al, 2013). This spatial variability can […]

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 […]

The use of NDVI in agriculture is no longer a new idea. As a result of numerous publications demonstrating the capacity of this measure to assist vintners in their technical decision-making, the number of NDVI maps  providers has increased considerably in recent years. Given the many choices available, winegrowers may […]

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 […]