Apex Vine App Download [UPD]

Monitoring vine water status is a major issue for vineyard management because water constraints impact both the quality and the quantity of the harvest. Existing methods are often costly and complex to implement. ApeX-Vigne is a free mobile application developed to facilitate the collection and geolocation of 50 vine apex observations to characterise vine shoot growth and classify it into 3 growth categories. The application also provides the user with a simple estimate of vine water status based on shoot growth. This paper presents the results obtained over two seasons (2019 and 2020) after the launch of the Apex-Vigne application and its use over a large wine producing region in the south of France. An existing method was adapted for evaluating the interest of the application based on the number of installations and uninstallations. The results showed that the application had more than 1200 downloads and 6000 observations made in the 2020 season. Examples from the commercially collected data showed that ApeX-Vigne can be used as a tool for characterizing water stress at within-field and inter-field scales. Finally, it was also demonstrated that by enabling the massive and centralized collection of spatial field and within-field scale observations of shoot growth, the ApeX-Vigne data was able to characterise the spatial structure of vine water status at the regional scale. Access to this new source of information offers opportunities for the management of water resources at a regional scale as well as for site- and vineyard-specific management. These results also raised new research questions on the joint use of this new source of spatial data with other sources of high spatial resolution information.

Several methods have been proposed to measure the water status of the vine (Acevedo-Opazo et al. 2008). However, these methods generally require significant equipment and specific skills. They are therefore difficult to implement for systematic monitoring over a large area and throughout the season. In order to overcome these constraints, simpler alternative approaches have been proposed (Acevedo-Opazo et al. 2008). Among these, the apex growth index (Payan, 2018) is interesting because it is based on simple observations of the end of the vine branches, the apices. The Institut Franais de la Vigne et du Vin (IFV) recommends the use of the apex growth index (iC-Apex), which is simple to calculate and has made it possible to define correspondences with different levels of water stress measured in the vineyard. Although more imprecise than standard methods, the iC-Apex has the advantage of being easily performed by inexperienced operators and without expensive equipment.

Apex Vine App Download

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This mobile application can be used i) at the plot level by the winegrower or his advisor for the management of the vineyard, ii) at the scale of a network of plots to follow experiments or define a collective strategy or iii) to regional scale to monitor the impacts of climate change or identify particularly sensitive areas.

ApeX Vigne can be downloaded for free from the app store. It allows, thanks to a simple counting system, to count the apices and then to calculate a vegetative growth index. The application can be downloaded from: =ag.GB.apex&hl=fr&gl=US

The application then offers a summary and monitoring of the evolution of apex growth for each plot. Finally, an application module, developed by IFV, offers an interpretation of the water stress level based on the observations made. The information is stored securely. The user can then retrieve them for further analysis or share them with others.

The Gripple APEX anchor introduces civil engineering technology, never seen before in vineyard management, using state-of-the-art materials to prevent wind-driven movement of the trellis and eliminates potential for collapse and the loss of crops.

More lightweight and easier to install than traditional stakes or steel augers, it also uses a zinc aluminium alloy anchor and polymer fibre tendon to avoid corrosion which lasts the lifetime of the vine.

John Butterworth, head of outdoor products at Gripple, who has led development of the APEX anchor range, explains: Corrosion is a huge risk in the vineyard industry due to the variation in soils and can affect even the most prestigious regions such as Champagne and Cognac. The cost of losing entire crops due to collapsed trellising is a real and potentially very expensive threat.

The anchor is hammered into the ground and a cord is pulled up which flips the anchor into a horizontal position which secures it with minimal soil disruption. Although it has been designed primarily for vineyards it can also be used in orchards or for the growing of hops and kiwis.

VIGOR. Vigor is the quality or condition that is expressed in rapid growth of the parts of the vine. It refers essentially to the rate of growth. It depends on a combination of factors, including soil type, texture, and depth, water and nutrient availability, and variety choice. Inherently, some grape varieties are more vigorous (e.g., Syrah and Sangiovese) than others, which in turn can produce canopies with an excess amount of leaf area that require more intense management. ff782bc1db