20 documents found, page 1 of 2
Water and wastewater management for sustainable viticulture and oenology in Sou...
Costa, Joaquim; Oliveira, Margarida; Egipto, R.; Cid, J. F.; Fragoso, Rita; Lopes, C. M.; Duarte, ElizabethAssessing sustainability of the wine industry requires improved characterization of its environmental impacts, namely in terms of water use. Therefore, quantification of water inputs and wastewater (WW) outputs is needed to highlight inefficiencies in wine production and related consequences for the environment. Water use and WW generation in irrigated viticulture and oenology remains insufficiently quantified ...
Carry-over effects on bud fertility makes early defoliation a risky crop-regula...
Lopes, C.M.; Egipto, R.; Zarrouk, O.; Chaves, M.M.Background and Aims: Recently, early defoliation (ED) has been used widely to regulate yield and reduce bunch compactness to improve tolerance to bunch rot. The aim of this study was to test ED, as an alternative to the conventional crop thinning (CT), to regulate yield and improve tolerance to bunch rot of the Vitis vinifera L. cv. Aragonez. Methods and Results: Early defoliation and CT were compared with an u...
Water as a critical issue for viticulture in southern Europe: sustainability vs...
Costa, J. M.; Vaz, M.; Escalona, J.M.; Egipto, R.; Lopes, Carlos; Medrano, H.; Chaves, M.M.Water is a vulnerable resource in the Mediterranean region, but irrigation demands have been increasing to mitigate effects of environmental stress. Sustainable wine production involves the precise use of water in the vineyard and winery. Improved knowledge on grapevine ecophysiology and genetics, the use of sensors for soil and canopy monitoring, plant phenotyping and improved crop management can help save wat...
Canopy and soil thermal patterns to support management of irrigated vineyards
Costa, J. M.; Egipto, R.; Lopes, Carlos M.; Chaves, M.M.Irrigated viticulture expanded fast in Southern European countries such as Portugal to optimize berry yield and quality and to increase vine’s longevity. However, intensive irrigation increases pressure over the local and regional water resources, that are getting scarcer, and increases also management costs. Additionally, row crops such as grapevine, are more vulnerable to heat stress due to the additional eff...
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...
Gestão da água para uma viticultura sustentável no sul de Portugal
Costa, J.; Oliveira, Margarida; Egipto, R.; Fragoso, R.; Lopes, C: M.A avaliação da sustentabilidade da cadeia vitivinícola deverá permitir identificar pontos críticos e quantificar eventuais impactes ambientais. Por outro lado, a variabilidade das condições climáticas no Mediterrâneo e a tendência para eventos climáticos mais extremos (secas severas, ondas de calor) colocam desafios crescentes ao setor vitivinícola na região, nomeadamente em termos da sua sustentabilidade. O us...
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...
Gestão da água para uma viticultura sustentável no sul de Portugal
Costa, J. M.; Oliveira, M.; Egipto, R.; Fragoso, R.; Lopes, CarlosA avaliação da sustentabilidade da cadeia vitivinícola deverá permitir identificar pontos críticos e quantificar eventuais impactes ambientais. Por outro lado, a variabilidade das condições climáticas no Mediterrâneo e a tendência para eventos climáticos mais extremos (secas severas, ondas de calor) colocam desafios crescentes ao setor vitivinícola na região, nomeadamente em termos da sua sustentabilidade. O us...
Is early defoliation a sustainable management practice for mediterranean vineya...
Lopes, C.M.; Vendeiro, M.; Egipto, R.; Zarrouk, O.; Chaves, M.M.Context and purpose of the study - Recently early defoliation (ED) has been tested in several highyielding grapevine varieties and sites aiming at reducing cluster compactness and hence, regulating yield and susceptibility to botrytis bunch rot infection. The reported results have been generally positive, encouraging growers to use this canopy management technique as an alternative for replacing the conventiona...