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Adaptive actions to support vineyard management using VISCA predictions in Douro Valley, Portugal

VISCA DSS is integrating climate and agricultural models with farmers’ management specifications in order to design short practices, medium- and long-term adaptation strategies to climate change.

In the Douro Valley, where our Portuguese demonstration site is located, the combination of abundant rainfall in March and April of 2020 and a very warm winter influenced the precocity of this year’s growth cycle, with budbreak recorded three weeks earlier than average. These conditions caused recurrent and earlier than expected outbreaks of downy mildew. However, with the predictions supplied by VISCA, the Symington viticulture team was able to plan a very effective treatment schedule, which successfully contained the disease.

Flowering also advanced earlier, arriving two weeks ahead of the regional average, and in order to safeguard good fruit set and ensure a healthy crop, the team at Symington continues to rely on timely VISCA predictions to plan ahead and keep disease pressures at bay.

DSS showing that budbreak has been achieved (May 2020)

 

Pictures of Ataíde vineyard of first week of May 2020 showing the phenological stage of bloom

During April, VISCA DSS predicted higher rainfall than normal in Douro. This increase of precipitation would risk the spread of grape diseases causing some loss of crops. To avoid this loss, the Viticulturists of Symington have decided to make 4 treatments sprays instead of 3 with an earlier positioning than usual in the calendar, to block the downy mildew cycle.

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VISCA at the 21st GiESCO International Meeting

The 21st GiESCO International Meeting took place on 23-28 June 2019 in Thessaloniki, Greece which covered the main fields in viticultural research and innovation focusing on vine ecophysiology, vineyard management, grape and wine quality, and sustainable production. A professional day was also included, with the aim to summon attendees from the private sector and strengthen the exchange of knowledge and information between researchers and end-users. VISCA project was presented by the University of Porto & SYMINGTON during this event where they presented preliminary results of the crop forcing technique which they're applying in a demonstration site in Doruo region. You may download the PowerPoint presentation from here.

 

 

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VISCA at the 11th Alentejo Vine and Wine Symposium

The future and sustainability of the wine sector in economic, social and environmental terms were the focus themes of the 11th Alentejo Vine and Wine Symposium which took place on 15, 16 and 17 May in Évora, at the Auditory of the Alentejo Regional Coordination and Development Commission with the participation of 200 representatives of researchers, experts and end-users in viticulture and oenology fields. VISCA project was presented by the University of Porto & SYMINGTON at 11th Alentejo Viticulture Symposium. 

For further information on the event, check the official website.

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This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 730253.