13 documents found, page 1 of 2
Molecular and hydraulic responses of grapevine to water status and phenology un...
Damásio, M.; Pinto, C.; Salguero, J.; Alarcón, M. V.; Deus, J.; David, T. S.; Silvestre, J.; Carvalho, L. C.; Zarrouk, OlfaUnderstanding seasonal interactions among hydraulic, chemical and molecular signalling under water deficit is crucial for improving vineyard irrigation strategies under climate change and increasing water scarcity. We aimed to test how irrigation strategies and phenology affect the hydraulic adjustment mechanisms of eight fieldgrown grapevine varieties under different long-term irrigation regimes: Full-irrigate...
Phloem carbon isotopic signature as a valuable tool to assess physiological adj...
Jacinto, J.; Jesus, J.G.; Damásio, M.; Silvestre, J.; Máguas, C.; Antunes, Victor A. C.Wine production is being threatened by climate change, particularly in the Mediterranean region. Thus, more knowledge on vineyards’ well-functioning and adjustments to drought conditions is essential. We aimed to understand how grapevine varieties from different European origins, under the same climatic context, respond to water stress and whether the climatic origin plays a role in their water-use efficiency (...
WineWATERfootprint : utilização sustentável ao longo da cadeia do vinho
Saraiva, Artur; Rodrigues, G.; Silvestre, J.; Silva, P. O; Feliciano, M.; Oliveira, MargaridaInvestigadores e enólogos juntos para procurar soluções para a gestão sustentável da água nas regiões vitícolas do Mediterrâneo.
The impact of the winery's wastewater treatment system on the winery water foot...
Saraiva, A.; Rodrigues, G.; Mamede, H.; Silvestre, J.; Dias, I.; Feliciano, M.; Oliveira e Silva, P.; Oliveira, M.In the Mediterranean region, water scarcity has already prompted concern in the wine sector due to the strong impact it has on vineyard productivity and wine quality. Water footprint is an indicator that takes account of all the water involved in the creation of a product and may help producers to identify hotspots, and reduce water consumption and the corresponding production costs. In recent years several stu...
Using soil and canopy temperature to support efficient management of irrigated ...
Costa, J. M.; Egipto, R.; Lopes, Carlos; Silvestre, J.Extreme heat and drought events are becoming more frequent and erratic in Mediterranean Europe. Better comprehension of spatial and temporal dynamics of heat fluxes and thermal microclimate in vineyards can support vineyard’s management and minimize the impact of climate variability. Field experiments were carried out in South Portugal with two red cvs. Touriga Nacional and Aragonez (syn. Tempranillo) under def...
Determinação da pegada hídrica na fileira vitivinícola: resultados preliminares...
Saraiva, Artur; Egipto, R.; Presumido, P.; Jorge, C.; Amaral, A.; Ribeiro, A.C.; Dias, Igor; Feliciano, M.; Ferreira, Albertina; Ferreira, LuísAs alterações climáticas e a escassez de água daí decorrente têm levantado preocupações junto do setor agrícola, e em particular na fileira vitivinícola, devido ao impacto que esta tem na produção e qualidade do vinho. O uso eficiente dos recursos naturais e a subsequente redução dos custos de produção através da adoção de práticas mais sustentáveis é hoje um objetivo dos vitivinicultores. O projeto WineWATERFo...
WATERFootprint of wine chain: comparison between two case studies portuguese
Saraiva, Artur; Egipto, R.; Presumido, P.; Jorge, C.; Amaral, A.; Castro Ribeiro, A.; Ferreira, Albertina; Goncalves, A.; Grifo, Anabela; Oliveira, M.A.Water scarcity caused by climate change and its implications on grape production and quality have raised concerns among wine producers. The adoption of sustainable practices is now a goal of winemakers since the efficient use of resources allows them to reduce production costs. The WineWaterFootprint project evaluated the water footprint in the wine industry through the development of a methodology applied to t...
The impact of the winery's wastewater treatment system on the winery water foot...
Saraiva, Artur; Rodrigues, G.; Mamede, H.; Silvestre, J.; Dias, Igor; Feliciano, M.; Silva, P. O.; Oliveira, MargaridaIn the Mediterranean region, water scarcity has already prompted concern in the wine sector due to the strong impact it has on vineyard productivity and wine quality. Water footprint is an indicator that takes account of all the water involved in the creation of a product and may help producers to identify hotspots, and reduce water consumption and the corresponding production costs. In recent years several stu...
Transpiration reduction as an answer to water stress: models versus measurement...
Lourenço, S.; Conceição, N.; Losada, H.P.; Silvestre, J.; Siqueira, J.; Santos, F.; Rolim, J.; Ferreira, Maria IsabelThe so-called stress functions, allowing quantification of transpiration or evapotranspiration reduction, as an answer to water deficit stress (stress coefficient, Ks), are useful tools for irrigation scheduling. It is known that this coefficient depends on several variables and parameters, such as evapotranspiration rate, root patterns/density and soil properties. However, the most common Ks models with practi...
Can soil water content be used as a predictor of predawn leaf water potential f...
Egipto, R.; Costa, J. M.; Silvestre, J.; Chaves, M.M.; Lopes, C. M.Context and purpose of the study: Water and heat stress impose new challenges to irrigation management in the Mediterranean areas. This reality has a major impact on the vineyard ecosystem, particularly on the scarce water resources of the Alentejo region (South Portugal). To mitigate this problem, irrigation management should focus on optimizing yield and fruit quality per volume of water applied. This work ai...