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Dr. Aureliano C. Malheiro
UTAD - University of Trás-os-Montes and Alto Douro & CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences University of Trás-os-Montes and Alto Douro, Agronomy Department, Quinta de Prados, 5000-801 Vila Real, PORT

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0 Climate Change Adaptation
0 agricultural sciences
0 Agrometeorology
0 crop water requeriments
0 viticulture and environment

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crop water management

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Journal article
Published: 20 August 2021 in Agronomy
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Reliable estimations of parameter values and associated uncertainties are crucial for crop model applications in agro-environmental research. However, estimating many parameters simultaneously for different types of response variables is difficult. This becomes more complicated for grapevines with different phenotypes between varieties and training systems. Our study aims to evaluate how a standard least square approach can be used to calibrate a complex grapevine model for simulating both the phenology (flowering and harvest date) and yield of four different variety–training systems in the Douro Demarcated Region, northern Portugal. An objective function is defined to search for the best-fit parameters that result in the minimum value of the unweighted sum of the normalized Root Mean Squared Error (nRMSE) of the studied variables. Parameter uncertainties are estimated as how a given parameter value can determine the total prediction variability caused by variations in the other parameter combinations. The results indicate that the best-estimated parameters show a satisfactory predictive performance, with a mean bias of −2 to 4 days for phenology and −232 to 159 kg/ha for yield. The corresponding variance in the observed data was generally well reproduced, except for one occasion. These parameters are a good trade-off to achieve results close to the best possible fit of each response variable. No parameter combinations can achieve minimum errors simultaneously for phenology and yield, where the best fit to one variable can lead to a poor fit to another. The proposed parameter uncertainty analysis is particularly useful to select the best-fit parameter values when several choices with equal performance occur. A global sensitivity analysis is applied where the fruit-setting parameters are identified as key determinants for yield simulations. Overall, the approach (including uncertainty analysis) is relatively simple and straightforward without specific pre-conditions (e.g., model continuity), which can be easily applied for other models and crops. However, a challenge has been identified, which is associated with the appropriate assumption of the model errors, where a combination of various calibration approaches might be essential to have a more robust parameter estimation.

ACS Style

Chenyao Yang; Christoph Menz; Helder Fraga; Samuel Reis; Nelson Machado; Aureliano C. Malheiro; João A. Santos. Simultaneous Calibration of Grapevine Phenology and Yield with a Soil–Plant–Atmosphere System Model Using the Frequentist Method. Agronomy 2021, 11, 1659 .

AMA Style

Chenyao Yang, Christoph Menz, Helder Fraga, Samuel Reis, Nelson Machado, Aureliano C. Malheiro, João A. Santos. Simultaneous Calibration of Grapevine Phenology and Yield with a Soil–Plant–Atmosphere System Model Using the Frequentist Method. Agronomy. 2021; 11 (8):1659.

Chicago/Turabian Style

Chenyao Yang; Christoph Menz; Helder Fraga; Samuel Reis; Nelson Machado; Aureliano C. Malheiro; João A. Santos. 2021. "Simultaneous Calibration of Grapevine Phenology and Yield with a Soil–Plant–Atmosphere System Model Using the Frequentist Method." Agronomy 11, no. 8: 1659.

Research article
Published: 05 July 2021 in Journal of the Science of Food and Agriculture
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BACKGROUND The application of kaolin particle film is considered a short-term strategy against several environmental stresses in areas with a Mediterranean-like climate. However, it is known that temperature fluctuations and water availability over the season can jeopardize kaolin efficiency in many Mediterranean crops. Hence, this study aims to evaluate the effects of kaolin foliar application on berry phytohormones, antioxidant defence, and oenological parameters at veraison and harvest stages of Touriga-Franca (TF) and Touriga-Nacional (TN) grapevines in two growing seasons (2017 and 2018). The 2017 growing season was considered the driest (−147.1 dryness index) and the warmest (2705 °C growing degree days) of the study. RESULTS In 2017, TF kaolin-treated berries showed lower salicylic acid (−26.6% compared with unsprayed vines) and abscisic acid (ABA) (−10.5%) accumulation at veraison, whereas salicylic acid increased up to 28.8% at harvest. In a less hot season, TN and TF kaolin-treated grapevines showed a twofold in ABA content and a threefold increase in the indole-3-acetic acid content at veraison and lower ABA levels (83.8%) compared with unsprayed vines at harvest. Treated berries showed a decreased sugar content, without compromising malic and tartaric acid levels, and reactive oxygen species accumulation throughout berry ripening. CONCLUSION The results suggest kaolin exerts a delaying effect in triggering ripening-related processes under severe summer stress conditions. Treated berries responded with improved antioxidant defence and phytohormone balance, showing significant interactions between kaolin treatment, variety, and developmental stage in both assessed years. © 2021 Society of Chemical Industry.

ACS Style

Sara Bernardo; Lia‐Tânia Dinis; Nelson Machado; Ana Barros; Marta Pitarch‐Bielsa; Aureliano C Malheiro; Aurelio Gómez‐Cadenas; José Moutinho‐Pereira. Uncovering the effects of kaolin on balancing berry phytohormones and quality attributes of Vitis vinifera grown in warm‐temperate climate regions. Journal of the Science of Food and Agriculture 2021, 1 .

AMA Style

Sara Bernardo, Lia‐Tânia Dinis, Nelson Machado, Ana Barros, Marta Pitarch‐Bielsa, Aureliano C Malheiro, Aurelio Gómez‐Cadenas, José Moutinho‐Pereira. Uncovering the effects of kaolin on balancing berry phytohormones and quality attributes of Vitis vinifera grown in warm‐temperate climate regions. Journal of the Science of Food and Agriculture. 2021; ():1.

Chicago/Turabian Style

Sara Bernardo; Lia‐Tânia Dinis; Nelson Machado; Ana Barros; Marta Pitarch‐Bielsa; Aureliano C Malheiro; Aurelio Gómez‐Cadenas; José Moutinho‐Pereira. 2021. "Uncovering the effects of kaolin on balancing berry phytohormones and quality attributes of Vitis vinifera grown in warm‐temperate climate regions." Journal of the Science of Food and Agriculture , no. : 1.

Journal article
Published: 21 March 2021 in Plant Physiology and Biochemistry
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Field-grown grapevines are often exposed to multiple environmental stresses, which challenges wine-growers to develop sustainable measures to sustain vine growth, yield, and quality. Under field conditions this task is demanding, due to differences in the magnitudes of stresses and associated plant responses. In this study we explored the hypothesis that kaolin-particle film application improves grapevine photoprotection through the regulation of xanthophyll cycle genes, limiting the thermal dissipation of excess energy under harsh environmental conditions. Hence, we selected two grapevine varieties, Touriga-Nacional (TN) and Touriga-Franca (TF), grown in the Douro Demarcated Region, and evaluated changes in light dissipation mechanisms, xanthophyll cycle components, and the expression of xanthophyll cycle genes during the 2017 summer season. The results showed that, from veraison to ripening, kaolin triggered the up-regulation of violaxanthin de-epoxidase (VvVDE1) and zeaxanthin epoxidase (VvZEP1) genes, indicating optimised regulation of the xanthophyll cycle. Kaolin treatment also decreased chlorophyll (Chla, Chlb, Chl(a+b)) and carotenoid (Car) accumulation under increasing summer stress conditions in both varieties and lowered the non-photochemical quenching (NPQ) of grapevines on ripening, suggesting a long-term response to summer stress. In addition, kaolin-treated grapevines showed increased Chla/Chlb and lower Chl(a+b)/Car ratios, displaying some features of high light adapted leaves. Overall, this study suggests that kaolin application enabled grapevines to benefit from fluctuating periods of summer stress by managing chlorophyll and carotenoid content and limiting down-regulation of both photochemistry and photoinhibition processes. Under Mediterranean field conditions, kaolin application can be considered an efficient method of minimising summer stress impact on grapevines.

ACS Style

Sara Bernardo; Lia-Tânia Dinis; Ana Luzio; Nelson Machado; Vicente Vives-Peris; María F. López-Climent; Aurelio Gómez-Cadenas; Lorenzo Zacarías; Maria Jesús Rodrigo; Aureliano C. Malheiro; Carlos Correia; José Moutinho-Pereira. Particle film technology modulates xanthophyll cycle and photochemical dynamics of grapevines grown in the Douro Valley. Plant Physiology and Biochemistry 2021, 162, 647 -655.

AMA Style

Sara Bernardo, Lia-Tânia Dinis, Ana Luzio, Nelson Machado, Vicente Vives-Peris, María F. López-Climent, Aurelio Gómez-Cadenas, Lorenzo Zacarías, Maria Jesús Rodrigo, Aureliano C. Malheiro, Carlos Correia, José Moutinho-Pereira. Particle film technology modulates xanthophyll cycle and photochemical dynamics of grapevines grown in the Douro Valley. Plant Physiology and Biochemistry. 2021; 162 ():647-655.

Chicago/Turabian Style

Sara Bernardo; Lia-Tânia Dinis; Ana Luzio; Nelson Machado; Vicente Vives-Peris; María F. López-Climent; Aurelio Gómez-Cadenas; Lorenzo Zacarías; Maria Jesús Rodrigo; Aureliano C. Malheiro; Carlos Correia; José Moutinho-Pereira. 2021. "Particle film technology modulates xanthophyll cycle and photochemical dynamics of grapevines grown in the Douro Valley." Plant Physiology and Biochemistry 162, no. : 647-655.

Journal article
Published: 04 March 2021 in Agronomy
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At a local scale, kaolin particle-film technology is considered a short-term adaptation strategy to mitigate the adverse effects of global warming on viticulture. This study aims to evaluate kaolin application effects on photochemistry and related defence responses of Touriga Franca (TF) and Touriga Nacional (TN) grapevines planted at two Portuguese winegrowing regions (Douro and Alentejo) over two summer seasons (2017 and 2018). For this purpose, chlorophyll a fluorescence transient analysis, leaf temperature, foliar metabolites, and the expression of genes related to heat stress (VvHSP70) and stress tolerance (VvWRKY18) were analysed. Kaolin application had an inhibitory effect on VvHSP70 expression, reinforcing its protective role against heat stress. However, VvWRKY18 gene expression and foliar metabolites accumulation revealed lower gene expression in TN-treated leaves and higher in TF at Alentejo, while lipid peroxidation levels decreased in both treated varieties and regions. The positive kaolin effect on the performance index parameter (PIABS) increased at ripening, mainly in TN, suggesting that stress responses can differ among varieties, depending on the initial acclimation to kaolin treatment. Moreover, changes on chlorophyll fluorescence transient analysis were more pronounced at the Douro site in 2017, indicating higher stress severity and impacts at this site, which boosted kaolin efficiency in alleviating summer stress. Under applied contexts, kaolin application can be considered a promising practice to minimise summer stress impacts in grapevines grown in Mediterranean-like climate regions.

ACS Style

Sara Bernardo; Ana Luzio; Nelson Machado; Helena Ferreira; Vicente Vives-Peris; Aureliano Malheiro; Carlos Correia; Aurelio Gómez-Cadenas; José Moutinho-Pereira; Lia-Tânia Dinis. Kaolin Application Modulates Grapevine Photochemistry and Defence Responses in Distinct Mediterranean-Type Climate Vineyards. Agronomy 2021, 11, 477 .

AMA Style

Sara Bernardo, Ana Luzio, Nelson Machado, Helena Ferreira, Vicente Vives-Peris, Aureliano Malheiro, Carlos Correia, Aurelio Gómez-Cadenas, José Moutinho-Pereira, Lia-Tânia Dinis. Kaolin Application Modulates Grapevine Photochemistry and Defence Responses in Distinct Mediterranean-Type Climate Vineyards. Agronomy. 2021; 11 (3):477.

Chicago/Turabian Style

Sara Bernardo; Ana Luzio; Nelson Machado; Helena Ferreira; Vicente Vives-Peris; Aureliano Malheiro; Carlos Correia; Aurelio Gómez-Cadenas; José Moutinho-Pereira; Lia-Tânia Dinis. 2021. "Kaolin Application Modulates Grapevine Photochemistry and Defence Responses in Distinct Mediterranean-Type Climate Vineyards." Agronomy 11, no. 3: 477.

Preprint content
Published: 03 March 2021
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The Mediterranean wine regions are characterized by a marked intra (and inter) annual climate variability, where high water deficits in the atmosphere and soil can develop, particularly during the summer. In addition, the climate change scenarios point to an intensification of these environmental conditions in the near future. Thus, the combination of survival strategies, which include the ability to reduce water losses, increase absorption or control dehydration, becomes an important tool for crop water management. Adaptation measures involving cultural practices must also be adopted to ensure the sustainability of the wine sector. One of the main adaptation viticultural practice is the selection of the training system. In this context, mature vines trained to two different systems in the Douro Demarcated Region (NE Portugal) were selected and several measurements (e.g. weather variables, soil moisture, leaf water potential, leaf area index, sap flow and trunk diameter fluctuations) were performed under variable soil water availability. The results highlight the key role of plant survival strategies, such as stomatal control and adjustment of the total leaf area, in order to reduce transpiration, as well as a nocturnal rehydration. Furthermore, and in terms of water dynamics, the results point to the effect of the shorter length of the hydraulic pathways of the Guyot-trained vines, in contrast to the higher trunk and the permanent horizontal cordon of the vines trained to spur pruned cordon. The research findings support the selection of the Guyot as a training system that is better adapted to the projected climate change in Mediterranean wine-producing regions.

ACS Style

Aureliano C. Malheiro; Lia-Tânia Dinis; Nuno Conceição; José Moutinho-Pereira. Grapevine survival strategies and training system as an adaptation measure under Mediterranean climate. 2021, 1 .

AMA Style

Aureliano C. Malheiro, Lia-Tânia Dinis, Nuno Conceição, José Moutinho-Pereira. Grapevine survival strategies and training system as an adaptation measure under Mediterranean climate. . 2021; ():1.

Chicago/Turabian Style

Aureliano C. Malheiro; Lia-Tânia Dinis; Nuno Conceição; José Moutinho-Pereira. 2021. "Grapevine survival strategies and training system as an adaptation measure under Mediterranean climate." , no. : 1.

Review
Published: 05 February 2021 in Agriculture
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Grapevine reproductive development extends over two growing seasons (vegetative cycles), for the complete formation of inflorescences and clusters. Induction and floral differentiation, the mechanism that leads to the formation of reproductive structures inside dormant buds, is a complex process divided into three well-defined stages (formation of anlagen, inflorescence primordia and flowers). This sequence of stages comprises morphological, biochemical, and physiological events, influenced by a set of environmental and endogenous factors. Inflorescence primordia formation determines the potential number of clusters that will be formed in the following growing season. Thus, during bud dormancy, viticulturists and winemakers can obtain a first yield prediction through the determination of bud fruitfulness. This information allows adjustments to be made to bud load, promoting balanced yield and fruit quality and higher commercial value. The present review describes the morphology and physiology of the formation of inflorescence primordia, as well as discusses the main abiotic and biotic factors involved, including a physiological disorder known as primary bud necrosis. In the same way, we intend to approach the more used techniques of analysis of fruitfulness and its importance for a robust yield forecasting.

ACS Style

Ana Monteiro; Aureliano Malheiro; Eunice Bacelar. Morphology, Physiology and Analysis Techniques of Grapevine Bud Fruitfulness: A Review. Agriculture 2021, 11, 127 .

AMA Style

Ana Monteiro, Aureliano Malheiro, Eunice Bacelar. Morphology, Physiology and Analysis Techniques of Grapevine Bud Fruitfulness: A Review. Agriculture. 2021; 11 (2):127.

Chicago/Turabian Style

Ana Monteiro; Aureliano Malheiro; Eunice Bacelar. 2021. "Morphology, Physiology and Analysis Techniques of Grapevine Bud Fruitfulness: A Review." Agriculture 11, no. 2: 127.

Journal article
Published: 01 August 2020 in Agriculture
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The present research aimed to evaluate the water dynamics of grapevines trained in Cordon and Guyot systems by coupling sap flow and trunk diameter measurements under Mediterranean climate conditions. The study was conducted in a vineyard with Touriga-Nacional located at the Douro Valley, Portugal, during 2017. The results showed daily trunk diameter fluctuations (TDFs), with the contraction, recovery and increment phases and higher sap flow (SF) rates at earlier stages. Under harsh pedoclimatic conditions, SF was reduced and TDF flattened. Rehydration and stomatal mechanisms were mostly associated with these responses. Guyot vines showed higher changes in TDF for the same SF values, whereas the TDFs of Cordon vines remained practically unchanged over maturation. Guyot vines generally showed increased values of cumulative increment and maximum daily trunk shrinkage. Although Guyot vines had a similar leaf area index (LAI), they showed higher SF/LAI ratios than Cordon vines. These results highlight the effect of the shorter length of the hydraulic pathways of the Guyot training system, in contrast to the higher trunk and the permanent horizontal branch (cordon) of the Cordon training system, indicating good adaptation to local pedoclimatic conditions. The study pointed to the complementary use of both techniques in the evaluation of grapevine water dynamics.

ACS Style

Aureliano Malheiro; Mafalda Pires; Nuno Conceição; Ana Claro; Lia-Tânia Dinis; José Moutinho-Pereira. Linking Sap Flow and Trunk Diameter Measurements to Assess Water Dynamics of Touriga-Nacional Grapevines Trained in Cordon and Guyot Systems. Agriculture 2020, 10, 315 .

AMA Style

Aureliano Malheiro, Mafalda Pires, Nuno Conceição, Ana Claro, Lia-Tânia Dinis, José Moutinho-Pereira. Linking Sap Flow and Trunk Diameter Measurements to Assess Water Dynamics of Touriga-Nacional Grapevines Trained in Cordon and Guyot Systems. Agriculture. 2020; 10 (8):315.

Chicago/Turabian Style

Aureliano Malheiro; Mafalda Pires; Nuno Conceição; Ana Claro; Lia-Tânia Dinis; José Moutinho-Pereira. 2020. "Linking Sap Flow and Trunk Diameter Measurements to Assess Water Dynamics of Touriga-Nacional Grapevines Trained in Cordon and Guyot Systems." Agriculture 10, no. 8: 315.

Conference paper
Published: 28 July 2020 in Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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A new type of irrigation system is being developed in the context of the research project 02/SAICT/2017-28247-FCT-TO-CHAIR. The output are irrigation plans based on optimal control theory that minimize water usage and keep crops safe. In this paper, we present the main features of the system prototype. The system uses soil moisture sensors in the field, weather forecasts and parameters that the farmer provides. This data is input to an Octave/Matlab program that implements an Optimal Control algorithm to compute the irrigation plan for the crop field. The system consists of an electronic device that interfaces the sensors in the field and a server computer. The field device reads data from any analogue sensors and uses mobile communications to upload the data to the server computer. The server provides a website for users to insert data about their crops and fields and it retrieves weather forecast data from a freely available service. Once a day the server runs the Optimal Control irrigation-planning algorithm and the result is provided on the user web page using both numerical and graphical formats. Due to the diversity of irrigation infrastructures installed in crop fields and water availability for irrigation, the system does not automatically control/actuate the irrigation. That task is left on the hands of the farmer.

ACS Style

Sérgio F. Lopes; Rui M. S. Pereira; Sofia O. Lopes; Micael Coutinho; Aureliano Malheiro; Victor Fonte. Yet a Smarter Irrigation System. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2020, 337 -346.

AMA Style

Sérgio F. Lopes, Rui M. S. Pereira, Sofia O. Lopes, Micael Coutinho, Aureliano Malheiro, Victor Fonte. Yet a Smarter Irrigation System. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. 2020; ():337-346.

Chicago/Turabian Style

Sérgio F. Lopes; Rui M. S. Pereira; Sofia O. Lopes; Micael Coutinho; Aureliano Malheiro; Victor Fonte. 2020. "Yet a Smarter Irrigation System." Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering , no. : 337-346.

Journal article
Published: 29 May 2020 in Applied Sciences
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Budbreak date in grapevine is strictly dependent on temperature, and the correct simulation of its occurrence is of great interest since it may have major consequences on the final yield and quality. In this study, we evaluated the reliability for budbreak simulation of two modeling approaches, the chilling-forcing (CF), which describes the entire dormancy period (endo- and eco-dormancy) and the forcing approach (F), which only describes the eco-dormancy. For this, we selected six phenological models that apply CF and F in different ways, which were tested on budbreak simulation of eight grapevine varieties cultivated at different latitudes in Europe. Although none of the compared models showed a clear supremacy over the others, models based on CF showed a generally higher estimation accuracy than F where fixed starting dates were adopted. In the latter models, the accurate simulation of budbreak was dependent on the selection of the starting date for forcing accumulation that changes according to the latitude, whereas CF models were independent. Indeed, distinct thermal requirements were found for the grapevine varieties cultivated in Northern and Southern Europe. This implies the need to improve modeling of the dormancy period to avoid under- or over-estimations of budbreak date under different environmental conditions.

ACS Style

Luisa Leolini; Sergi Costafreda-Aumedes; João A. Santos; Christoph Menz; Helder Fraga; Daniel Molitor; Paolo Merante; Jürgen Junk; Thomas Kartschall; Agnès Destrac-Irvine; Cornelis Van Leeuwen; Aureliano C. Malheiro; José Eiras-Dias; José Silvestre; Camilla DiBari; Marco Bindi; Marco Moriondo. Phenological Model Intercomparison for Estimating Grapevine Budbreak Date (Vitis vinifera L.) in Europe. Applied Sciences 2020, 10, 1 .

AMA Style

Luisa Leolini, Sergi Costafreda-Aumedes, João A. Santos, Christoph Menz, Helder Fraga, Daniel Molitor, Paolo Merante, Jürgen Junk, Thomas Kartschall, Agnès Destrac-Irvine, Cornelis Van Leeuwen, Aureliano C. Malheiro, José Eiras-Dias, José Silvestre, Camilla DiBari, Marco Bindi, Marco Moriondo. Phenological Model Intercomparison for Estimating Grapevine Budbreak Date (Vitis vinifera L.) in Europe. Applied Sciences. 2020; 10 (11):1.

Chicago/Turabian Style

Luisa Leolini; Sergi Costafreda-Aumedes; João A. Santos; Christoph Menz; Helder Fraga; Daniel Molitor; Paolo Merante; Jürgen Junk; Thomas Kartschall; Agnès Destrac-Irvine; Cornelis Van Leeuwen; Aureliano C. Malheiro; José Eiras-Dias; José Silvestre; Camilla DiBari; Marco Bindi; Marco Moriondo. 2020. "Phenological Model Intercomparison for Estimating Grapevine Budbreak Date (Vitis vinifera L.) in Europe." Applied Sciences 10, no. 11: 1.

Review
Published: 29 April 2020 in Applied Sciences
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Viticulture and winemaking are important socioeconomic sectors in many European regions. Climate plays a vital role in the terroir of a given wine region, as it strongly controls canopy microclimate, vine growth, vine physiology, yield, and berry composition, which together determine wine attributes and typicity. New challenges are, however, predicted to arise from climate change, as grapevine cultivation is deeply dependent on weather and climate conditions. Changes in viticultural suitability over the last decades, for viticulture in general or the use of specific varieties, have already been reported for many wine regions. Despite spatially heterogeneous impacts, climate change is anticipated to exacerbate these recent trends on suitability for wine production. These shifts may reshape the geographical distribution of wine regions, while wine typicity may also be threatened in most cases. Changing climates will thereby urge for the implementation of timely, suitable, and cost-effective adaptation strategies, which should also be thoroughly planned and tuned to local conditions for an effective risk reduction. Although the potential of the different adaptation options is not yet fully investigated, deserving further research activities, their adoption will be of utmost relevance to maintain the socioeconomic and environmental sustainability of the highly valued viticulture and winemaking sector in Europe.

ACS Style

João A. Santos; Helder Fraga; Aureliano C. Malheiro; José Moutinho-Pereira; Lia-Tânia Dinis; Carlos Correia; Marco Moriondo; Luisa Leolini; Camilla DiBari; Sergi Costafreda-Aumedes; Thomas Kartschall; Christoph Menz; Daniel Molitor; Jürgen Junk; Marco Beyer; Hans R. Schultz. A Review of the Potential Climate Change Impacts and Adaptation Options for European Viticulture. Applied Sciences 2020, 10, 3092 .

AMA Style

João A. Santos, Helder Fraga, Aureliano C. Malheiro, José Moutinho-Pereira, Lia-Tânia Dinis, Carlos Correia, Marco Moriondo, Luisa Leolini, Camilla DiBari, Sergi Costafreda-Aumedes, Thomas Kartschall, Christoph Menz, Daniel Molitor, Jürgen Junk, Marco Beyer, Hans R. Schultz. A Review of the Potential Climate Change Impacts and Adaptation Options for European Viticulture. Applied Sciences. 2020; 10 (9):3092.

Chicago/Turabian Style

João A. Santos; Helder Fraga; Aureliano C. Malheiro; José Moutinho-Pereira; Lia-Tânia Dinis; Carlos Correia; Marco Moriondo; Luisa Leolini; Camilla DiBari; Sergi Costafreda-Aumedes; Thomas Kartschall; Christoph Menz; Daniel Molitor; Jürgen Junk; Marco Beyer; Hans R. Schultz. 2020. "A Review of the Potential Climate Change Impacts and Adaptation Options for European Viticulture." Applied Sciences 10, no. 9: 3092.

Journal article
Published: 09 August 2017 in Ciência e Técnica Vitivinícola
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ACS Style

José M. Mirás-Avalos; María Fandiño; Emiliano Trigo-Córdoba; Emma M. Martínez; José Moutinho-Pereira; Carlos M. Correia; Lia Dinis; Benjamín J. Rey; Aureliano C. Malheiro; Javier J. Cancela. Effects of surface and subsurface drip irrigation on physiology and yield of ‘Godello’ grapevines grown in Galicia, NW Spain. Ciência e Técnica Vitivinícola 2017, 32, 42 -52.

AMA Style

José M. Mirás-Avalos, María Fandiño, Emiliano Trigo-Córdoba, Emma M. Martínez, José Moutinho-Pereira, Carlos M. Correia, Lia Dinis, Benjamín J. Rey, Aureliano C. Malheiro, Javier J. Cancela. Effects of surface and subsurface drip irrigation on physiology and yield of ‘Godello’ grapevines grown in Galicia, NW Spain. Ciência e Técnica Vitivinícola. 2017; 32 (1):42-52.

Chicago/Turabian Style

José M. Mirás-Avalos; María Fandiño; Emiliano Trigo-Córdoba; Emma M. Martínez; José Moutinho-Pereira; Carlos M. Correia; Lia Dinis; Benjamín J. Rey; Aureliano C. Malheiro; Javier J. Cancela. 2017. "Effects of surface and subsurface drip irrigation on physiology and yield of ‘Godello’ grapevines grown in Galicia, NW Spain." Ciência e Técnica Vitivinícola 32, no. 1: 42-52.

Review
Published: 15 May 2017 in OENO One
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Aim: The winemaking sector in Portugal is of major socio-economic relevance, significantly contributing to the national exports and sustaining many wine-related activities, including oenotourism. Portuguese viticultural regions present a wide range of edaphoclimatic conditions with remarkable regional specificities, thus contributing to the individuality of their wines. Owing to the strong influence of climate and weather factors on grapevines, climate change may drive significant impacts on Portuguese viticulture.Methods and results: Climatic projections for the next decades in Portugal highlight an overall warming and drying trend of the grapevine growing season, potentially resulting in modifications in phenology, growth, development, yields and eventually wine characteristics and typicity. Furthermore, the current viticultural suitability of each region is projected to undergo significant changes, suggesting a reshaping of the optimal conditions for viticulture throughout the country. In order to sustain high quality levels and affordable yield regularity, cost-effective, appropriate and timely adaptation measures must be implemented by the sector.Conclusion: The most recent scientific studies covering the potential impacts of climate change on Portuguese viticulture are herein presented.Significance and impact of the study: Possible adaptation measures against these threats are also discussed, foreseeing their integration into decision support systems by stakeholders and decision-makers.

ACS Style

Helder Fraga; Iñaki García De Cortázar Atauri; Aureliano C. Malheiro; José Moutinho-Pereira; João A. Santos. Viticulture in Portugal: A review of recent trends and climate change projections. OENO One 2017, 51, 61 -69.

AMA Style

Helder Fraga, Iñaki García De Cortázar Atauri, Aureliano C. Malheiro, José Moutinho-Pereira, João A. Santos. Viticulture in Portugal: A review of recent trends and climate change projections. OENO One. 2017; 51 (2):61-69.

Chicago/Turabian Style

Helder Fraga; Iñaki García De Cortázar Atauri; Aureliano C. Malheiro; José Moutinho-Pereira; João A. Santos. 2017. "Viticulture in Portugal: A review of recent trends and climate change projections." OENO One 51, no. 2: 61-69.

Review
Published: 15 May 2017 in OENO One
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Aim: The winemaking sector in Portugal is of major socio-economic relevance, significantly contributing to the national exports and sustaining many wine-related activities, including oenotourism. Portuguese viticultural regions present a wide range of edaphoclimatic conditions with remarkable regional specificities, thus contributing to the individuality of their wines. Owing to the strong influence of climate and weather factors on grapevines, climate change may drive significant impacts on Portuguese viticulture.Methods and results: Climatic projections for the next decades in Portugal highlight an overall warming and drying trend of the grapevine growing season, potentially resulting in modifications in phenology, growth, development, yields and eventually wine characteristics and typicity. Furthermore, the current viticultural suitability of each region is projected to undergo significant changes, suggesting a reshaping of the optimal conditions for viticulture throughout the country. In order to sustain high quality levels and affordable yield regularity, cost-effective, appropriate and timely adaptation measures must be implemented by the sector.Conclusion: The most recent scientific studies covering the potential impacts of climate change on Portuguese viticulture are herein presented.Significance and impact of the study: Possible adaptation measures against these threats are also discussed, foreseeing their integration into decision support systems by stakeholders and decision-makers.

ACS Style

Helder Fraga; Iñaki García De Cortázar Atauri; Aureliano C. Malheiro; José Moutinho-Pereira; João Carlos Andrade Dos Santos. Viticulture in Portugal: A review of recent trends and climate change projections. OENO One 2017, 51, 61 -69.

AMA Style

Helder Fraga, Iñaki García De Cortázar Atauri, Aureliano C. Malheiro, José Moutinho-Pereira, João Carlos Andrade Dos Santos. Viticulture in Portugal: A review of recent trends and climate change projections. OENO One. 2017; 51 (2):61-69.

Chicago/Turabian Style

Helder Fraga; Iñaki García De Cortázar Atauri; Aureliano C. Malheiro; José Moutinho-Pereira; João Carlos Andrade Dos Santos. 2017. "Viticulture in Portugal: A review of recent trends and climate change projections." OENO One 51, no. 2: 61-69.

Original paper
Published: 13 March 2017 in Photosynthetica
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Knowledge about short-term climate change adaptation strategies for Mediterranean vineyards is needed in order to improve grapevine physiology and yield-quality attributes. We investigated effects of kaolin-particle film suspension on water relations, photosynthesis and oxidative stress of field-grown grapevines in the Douro region (northern Portugal) in 2012 and 2013. Kaolin suspension decreased leaf temperature by 18% and increased leaf water potential (up to 40.7% in 2013). Maximum photochemical quantum efficiency of PSII was higher and the minimal chlorophyll fluorescence was lower in the plants sprayed by kaolin. Two months after application, net photosynthesis and stomatal conductance at midday increased by 58.7 and 28.4%, respectively, in treated plants. In the same period, kaolin treatment increased photochemical reflectance, photosynthetic pigments, soluble proteins, soluble sugars, and starch concentrations, while decreased total phenols and thiobarbituric acid-reactive substances. Kaolin application can be an operational tool to alleviate summer stresses, which ameliorates grapevine physiology and consequently leads to a higher yield.

ACS Style

L. T. Dinis; Aureliano Malheiro; Ana Luzio; Helder Fraga; H. Ferreira; I. Gonçalves; G. Pinto; Carlos Correia; José Moutinho-Pereira. Improvement of grapevine physiology and yield under summer stress by kaolin-foliar application: water relations, photosynthesis and oxidative damage. Photosynthetica 2017, 56, 641 -651.

AMA Style

L. T. Dinis, Aureliano Malheiro, Ana Luzio, Helder Fraga, H. Ferreira, I. Gonçalves, G. Pinto, Carlos Correia, José Moutinho-Pereira. Improvement of grapevine physiology and yield under summer stress by kaolin-foliar application: water relations, photosynthesis and oxidative damage. Photosynthetica. 2017; 56 (2):641-651.

Chicago/Turabian Style

L. T. Dinis; Aureliano Malheiro; Ana Luzio; Helder Fraga; H. Ferreira; I. Gonçalves; G. Pinto; Carlos Correia; José Moutinho-Pereira. 2017. "Improvement of grapevine physiology and yield under summer stress by kaolin-foliar application: water relations, photosynthesis and oxidative damage." Photosynthetica 56, no. 2: 641-651.

Journal article
Published: 01 January 2017 in Acta Horticulturae
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M.I. Ferreira; N. Conceição; A.C. Malheiro; J.M. Silvestre; R.M. Silva. Water stress indicators and stress functions to calculate soil water depletion in deficit irrigated grapevine and kiwi. Acta Horticulturae 2017, 119 -126.

AMA Style

M.I. Ferreira, N. Conceição, A.C. Malheiro, J.M. Silvestre, R.M. Silva. Water stress indicators and stress functions to calculate soil water depletion in deficit irrigated grapevine and kiwi. Acta Horticulturae. 2017; (1150):119-126.

Chicago/Turabian Style

M.I. Ferreira; N. Conceição; A.C. Malheiro; J.M. Silvestre; R.M. Silva. 2017. "Water stress indicators and stress functions to calculate soil water depletion in deficit irrigated grapevine and kiwi." Acta Horticulturae , no. 1150: 119-126.

Journal article
Published: 19 September 2016 in Global Change Biology
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Viticulture is a key socioeconomic sector in Europe. Owing to the strong sensitivity of grapevines to atmospheric factors, climate change may represent an important challenge for this sector. The present study analyses viticultural suitability, yield, phenology, and water and nitrogen stress indices in Europe, for present climates (1980–2005) and future (2041–2070) climate change scenarios (RCP4.5 and RCP8.5). The STICS crop model is coupled with climate, soil and terrain databases, also taking into account CO2 physiological effects, and simulations are validated against observational datasets. A clear agreement between simulated and observed phenology, leaf area index, yield and water and nitrogen stress indices, including the spatial differences throughout Europe, is shown. The projected changes highlight an extension of the climatic suitability for grapevines up to 55ºN, which may represent the emergence of new winemaking regions. Despite strong regional heterogeneity, mean phenological timings (budburst, flowering, veraison and harvest) are projected to undergo significant advancements (e.g. budburst/harvest can be >1 month earlier), with implications also in the corresponding phenophase intervals. Enhanced dryness throughout Europe is also projected, with severe water stress over several regions in Southern regions (e.g. southern Iberia and Italy), locally reducing yield and leaf area. Increased atmospheric CO2 partially offsets dryness effects, promoting yield and leaf area index increases in Central/Northern Europe. Future biomass changes may lead to modifications in nitrogen demands, with higher stress in Northern/Central Europe and weaker stress in Southern Europe. These findings are critical decision support systems for stakeholders from the European winemaking sector. This article is protected by copyright. All rights reserved.

ACS Style

Helder Fraga; Iñaki Garcia de Cortazar-Atauri; Aureliano C. Malheiro; João A. Santos. Modelling climate change impacts on viticultural yield, phenology and stress conditions in Europe. Global Change Biology 2016, 22, 3774 -3788.

AMA Style

Helder Fraga, Iñaki Garcia de Cortazar-Atauri, Aureliano C. Malheiro, João A. Santos. Modelling climate change impacts on viticultural yield, phenology and stress conditions in Europe. Global Change Biology. 2016; 22 (11):3774-3788.

Chicago/Turabian Style

Helder Fraga; Iñaki Garcia de Cortazar-Atauri; Aureliano C. Malheiro; João A. Santos. 2016. "Modelling climate change impacts on viticultural yield, phenology and stress conditions in Europe." Global Change Biology 22, no. 11: 3774-3788.

Journal article
Published: 01 July 2016 in Acta Horticulturae
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A.C. Malheiro; M.I. Ferreira; N. Conceição; S. Green. Root and stem water dynamics of rainfed grapevines in the Douro region. Acta Horticulturae 2016, 221 -228.

AMA Style

A.C. Malheiro, M.I. Ferreira, N. Conceição, S. Green. Root and stem water dynamics of rainfed grapevines in the Douro region. Acta Horticulturae. 2016; (1136):221-228.

Chicago/Turabian Style

A.C. Malheiro; M.I. Ferreira; N. Conceição; S. Green. 2016. "Root and stem water dynamics of rainfed grapevines in the Douro region." Acta Horticulturae , no. 1136: 221-228.

Journal article
Published: 06 October 2015 in The Journal of Agricultural Science
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SUMMARYPhenological models are considered key tools for the short-term planning of viticultural activities and long-term impact assessment of climate change. In the present study, statistical phenological models were developed for budburst (BUD), flowering (FLO) and veraison (VER) of 16 grapevine varieties (autochthonous and international) from the Portuguese wine-making regions of Douro, Lisbon and Vinhos Verdes. For model calibration, monthly averages of daily minimum (Tmin), maximum (Tmax) and mean (Tmean) temperatures were selected as potential regressors by a stepwise methodology. Significant predictors included Tmin in January–February–March for BUD, Tmax in March–April for FLO, and Tmin, Tmax and Tmean in March–July for VER. Developed models showed a high degree of accuracy after validation, representing 0·71 of total variance for BUD, 0·83 for FLO and 0·78 for VER. Model errors were in most cases < 5 days, outperforming classic growing degree-day models, including models based on optimized temperature thresholds for each variety. Applied to the future scenarios RCP4·5/8·5, projections indicate earlier phenophase onset and shorter interphases for all varieties. These changes may bring significant challenges to the Portuguese wine-making sector, highlighting the need for suitable adaptation/mitigation strategies, to ensure its future sustainability.

ACS Style

Helder Fraga; J. A. Santos; José Moutinho-Pereira; C. Carlos; José Silvestre; J. Eiras-Dias; T. Mota; A. C. Malheiro. Statistical modelling of grapevine phenology in Portuguese wine regions: observed trends and climate change projections. The Journal of Agricultural Science 2015, 154, 795 -811.

AMA Style

Helder Fraga, J. A. Santos, José Moutinho-Pereira, C. Carlos, José Silvestre, J. Eiras-Dias, T. Mota, A. C. Malheiro. Statistical modelling of grapevine phenology in Portuguese wine regions: observed trends and climate change projections. The Journal of Agricultural Science. 2015; 154 (5):795-811.

Chicago/Turabian Style

Helder Fraga; J. A. Santos; José Moutinho-Pereira; C. Carlos; José Silvestre; J. Eiras-Dias; T. Mota; A. C. Malheiro. 2015. "Statistical modelling of grapevine phenology in Portuguese wine regions: observed trends and climate change projections." The Journal of Agricultural Science 154, no. 5: 795-811.

Journal article
Published: 07 August 2015 in Ciência e Técnica Vitivinícola
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Grapevine (Vitis vinifera L.) is a very important crop in Portugal, where the viticultural sector plays a central role in the national economy. The present study provides a review of most relevant research on grapevine modelling, giving particular emphasis to its past and future applicability to Portuguese conditions. A brief overview of the national sector, as well as of the prevailing physical and biological environments and viticultural practices is provided. Further, the terroir concept is discussed in view of the main controlling factors of grapevine development. Several crop models, either statistical or dynamic, that have reliably simulated grapevine/vineyard parameters, such as phenology, yield and quality, are referred. Statistical models are based on statistically significant relationships between a number of predictors and a given grapevine parameter. Dynamic crop models simulate plant growth and development and holistically integrate crop phenotype, soil profiles, weather and climate data and management practices in their simulations. Dynamic crop models are then becoming important decision support systems in viticulture. Additionally, they allow testing the effects of soils, management decisions and weather on crops. However, only a few dynamic models can properly simulate grapevine performance. Several studies also apply crop models under future conditions to assess the detrimental climate change impacts on grapevines. These crop models can be either applied to real-time monitoring and short-range predictions or to develop long-term climate change projections for the Portuguese viticulture. These studies will represent important added-values for the competitiveness and future sustainability of the winemaking sector in Portugal. A videira (Vitis vinifera L.) é uma cultura de grande relevo em Portugal, onde o sector vitivinícola desempenha um papel central na economia nacional. O presente estudo fornece uma revisão de pesquisas mais relevantes sobre a modelação da videira, dando especial ênfase à sua aplicabilidade às condições específicas portuguesas. É dada uma visão sucinta do sector nacional, bem como das condições físicas, biológicas e práticas vitivinícolas predominantes. O conceito de terroir é discutido tendo em conta os principais fatores condicionantes do desenvolvimento da videira. São referidos vários modelos de culturas, estatísticos e dinâmicos, que têm simulado com sucesso as características da videira/vinha, fenologia, produtividade e qualidade. Os modelos estatísticos são baseados em relações estatisticamente significativas entre um número de preditores e uma determinada característica da videira. Os modelos dinâmicos simulam o crescimento e desenvolvimento da planta de forma holística, integrando nas suas simulações o fenótipo da cultura, perfis de solo, dados meteorológicos e práticas culturais. Por este motivo, os modelos dinâmicos estão a tornar-se importantes sistemas...

ACS Style

Ricardo Costa; Helder Fraga; Aureliano C. Malheiro; João A. Santos. Application of crop modelling to portuguese viticulture: implementation and added-values for strategic planning. Ciência e Técnica Vitivinícola 2015, 30, 29 -42.

AMA Style

Ricardo Costa, Helder Fraga, Aureliano C. Malheiro, João A. Santos. Application of crop modelling to portuguese viticulture: implementation and added-values for strategic planning. Ciência e Técnica Vitivinícola. 2015; 30 (1):29-42.

Chicago/Turabian Style

Ricardo Costa; Helder Fraga; Aureliano C. Malheiro; João A. Santos. 2015. "Application of crop modelling to portuguese viticulture: implementation and added-values for strategic planning." Ciência e Técnica Vitivinícola 30, no. 1: 29-42.

Journal article
Published: 19 June 2015 in American Journal of Enology and Viticulture
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Viticulture plays a key role on the Portuguese economic growth. The possibility of obtaining early predictions of viticultural parameters, such as phenology, water status, yield and potential wine characteristics, are of great value for growers, influencing the entire viticultural chain. The present study is a first approach to adapt STICS, a dynamical crop model, to the Portuguese winegrowing conditions and grapevine varieties. Several site specific parameters for climate, soil and management practices are assessed. Varietal specific parameters are measured from vineyards in the Douro and Lisboa winegrowing regions. Three of the most important varieties in the country (Aragonez, Touriga-Franca and Touriga-Nacional) are targeted for model calibration. Overall, the STICS crop model is successful in simulating yield, phenological stages and water stress, but not alcohol content. The relatively high model skill will allow improving the performance of vineyard operations and winemaking practices, namely organizing harvests, vineyard intervention scheduling, irrigation procedures and strategic planning of wineries. STICS can be considered as a feasible decision supporting tool for short- and long-term strategic planning in the Portuguese viticulture, particularly taking into account the projected impacts of climate change. The efficiency gains resulting from the use of this crop model by wine industry stakeholders is expected to increase the competitiveness and sustainability of the wine sector in Portugal.

ACS Style

Helder Fraga; Ricardo Costa; José Moutinho-Pereira; Carlos M. Correia; Lia Dinis; Igor Gonçalves; José Silvestre; José Eiras-Dias; Aureliano Malheiro; João A. Santos. Modeling Phenology, Water Status, and Yield Components of Three Portuguese Grapevines Using the STICS Crop Model. American Journal of Enology and Viticulture 2015, 66, 482 -491.

AMA Style

Helder Fraga, Ricardo Costa, José Moutinho-Pereira, Carlos M. Correia, Lia Dinis, Igor Gonçalves, José Silvestre, José Eiras-Dias, Aureliano Malheiro, João A. Santos. Modeling Phenology, Water Status, and Yield Components of Three Portuguese Grapevines Using the STICS Crop Model. American Journal of Enology and Viticulture. 2015; 66 (4):482-491.

Chicago/Turabian Style

Helder Fraga; Ricardo Costa; José Moutinho-Pereira; Carlos M. Correia; Lia Dinis; Igor Gonçalves; José Silvestre; José Eiras-Dias; Aureliano Malheiro; João A. Santos. 2015. "Modeling Phenology, Water Status, and Yield Components of Three Portuguese Grapevines Using the STICS Crop Model." American Journal of Enology and Viticulture 66, no. 4: 482-491.