OPERATIONAL STUDY OF DRONE SPRAYING APPLICATION OF PHYTOSANITARY PRODUCTS IN VINEYARDS

The use of drones in topics related to precision agriculture to improve the efficiency in the application of phytosanitary products to vineyards increases every day. Drones are especially productive in difficult orographic terrains, where other mechanical systems such as tractors cannot be used. This study shows the development and implementation of a methodology to determine key parameters to decide the suitability of a drone to a spraying task (i.e. spraying time for a certain parcel, number or tank refills required), taking into account the technical specifications of a certain commercial model. For the validation, the data of a vineyard belonging to the Rías Baixas appellation of origin (NW Spain) and the technical specifications of drones from three different manufacturers (i.e. DJI, Hylio and Yamaha) are used. Results show that the Hylio AD122 with a phytosanitary tank of 22 L provides the best performance, with a productivity around 6 minutes per hectare. Keywords: drone spraying; vineyard; precision agriculture; aerial works

Spatio-Temporal Analysis of Satellite Imagery (NDVI) to Identify Terroir and Vineyard Yeast Differences According to Appellation of Origin (AOP) and Biogeographic Origin

Terroir is one of the core concepts associated with wine and presumes that the land from which the grapes are grown, the plant habitat, imparts a unique quality that is specific to that growing site. Additionally, numerous factors can influence yeast diversity, and terroir is among the most relevant. Therefore, it can be interesting to use Remote Sensing tools that help identify and give helpful information about the terroir and key characteristics that define the AOP (Appellation of Origin). In this study, the NDVI (Normalized Difference Vegetation Index) calculated from Landsat 8 imagery was used to perform a spatio-temporal analysis during 2013, 2014, and 2015 of several vineyards belonging to four different AOP in Galicia (Spain). This work shows that it is possible to use Remote Sensing for AOP delimitation. Results suggest: (i) satellite imagery can establish differences in terroir, (ii) the higher the NDVI, the higher the yeast species richness, (iii) the relationship between NDVI, terroir, and yeasts shows a stable trend over the years (Pearson’s r = 0.3894, p = 0.0119).

Evaluation of geographical indication for the clay handicraft from a city in the Northeast of Brazil

Geographical indications (GIs) can provide quality perception to a product by recognizing its unique characteristics, which creates the expectation that the registration of a GI is associated with its regional economic development. According to the literature, there are two types of GI: appellation of origin (AO) and indication of source (IS). The present study aimed to evaluate the best practice for obtaining an IS for the clay handicrafts produced in the municipality of Santana do São Francisco, in the northeast region of Brazil. Applied research, with a qualitative structure, was the methodology used to identify and select the ideal agents that potentiate the gains resulting from the GI. The evaluation was based on the methodology defined by the Ministry of Agriculture, Livestock and Supply of Brazil (Mapa), adapted for the qualification of agents able to carry out the necessary actions for the recognition process. The results showed that the Association of Artisans and the Brazilian Micro and Small Business Support Service (Sebrae) could act as the requesting and support entities, respectively, since both fulfill the requirements to work in favor of obtaining an indication of source in Santana do São Francisco.

Chemical evaluation of Carcavelos fortified wine aged in Portuguese (Quercus pyrenaica) and French (Quercus robur) oak barrels at medium and high toast

Adega do Casal Manteiga is a winery, publicly owned by the Municipality of Oeiras that produces Carcavelos fortified wine. Carcavelos fortified wine is an appellation of origin and demarcated as D.O.P. (Denominação de Origem Protegida). This study examines the effects of barrels made from botanical species (Quercus pyrenaica, and Quercus robur) and toasting method (medium and high) on a single vintage wine that has been aged for 8 years. Twenty barrels were used, with five replicates for each factor. The barrels were fabricated and toasted using the same cooperage, J.M. Gonçalves in Portugal. Significant differences were seen between the species Q. robur and Q. pyrenaica, with an impact on total phenolic content, including both flavonoids and non-flavonoids. The total phenols of the wine aged in Q. pyrenaica barrels was significantly higher than in the Q. robur barrels, and Q. pyrenaica contained more flavonoids than Q. robur in medium and high toast barrels. Q. pyrenaica showed more non-flavonoid compounds than Q. robur inhigh and medium toasted barrels, but this difference in non-flavonoids was only statistically significant in the high toasted barrels. The degree of toasting had significant effects on the flavonoid content of the wine, as well as the tanning power. Flavonoid content increased for both Q. pyrenaica and Q. robur in the wines that were aged in high tasted barrels compared to those that were medium toasted. The tannin power decreased for both Q. pyrenaica and Q. robur when the toasting increased.

Histoire et évolution des appellations d'origine françaises

During the 20th century, wine appellations of origin have largely developed to represent a significant part of the wine production of some countries, especially in Europe. The globalization of the production, trade and consumption of wine is a major fact of the 21st century economy. The question of appellations of origin and more generally geographical indications must be asked: Is it a survival 100 years after the first law on appellations of origin was adopted in France? Historical knowledge makes it possible to understand how law, both national and international, has been marked by major developments in this area. Regulations on the origin of products have undergone significant changes over the last century, extending well beyond the wine and spirits sector to cover many other sectors. In addition, international institutions are very involved in the development of this concept, be it the FAO in order to protect and sustainably develop agricultural products from emerging countries or whether it is WIPO or WTO in order to implement protection of signs of origin in the context of intellectual property. Since its creation in 1924 the OIV has been largely attentive to the issue of appellations of origin, in their different forms, (AOP, AOC) and according to the country. It continues to play an important role in reflecting and thinking about the role of legal norms in the globalized wine economy and international trade. A symposium organized in Dijon in May 2019, has commemorated and evoked the centenary of the concept of the appellation of origin in France, bringing together speakers from several disciplines, including historians and jurists, on this theme of the appellation of 'origin. The proposed communication present the main orientations identified during this conference, and in particular the strengths and weaknesses of this concept vis-à-vis the theme of international protection.