165 documents found, page 1 of 17
Foliar Silicon Application in the Era of Climate Change as a Part of Strategy t...
Dinis, Lia Tânia; Mota, Natalia; Martins, Sandra; Ribeiro, A.C.; Moutinho-Pereira, José; Pereira, SandraRising temperatures and water scarcity due to climate change are significant challenges for Mediterranean viticulture, particularly in the Douro Valley, a prominent winemaking region. Silicon (Si) has gained attention as a potential solution for mitigating these environmental stresses, especially in areas with limited water resources. This study explores the foliar application of Si as a promising strategy to r...
Effects of regulated deficit irrigation and foliar kaolin application on qualit...
Barreales, David; Fernandes, Ângela; Barros, Lillian; Capitao, Susana; Ribeiro, A.C.BackgroundWater stress during the growing season of the almond tree is the factor that most limits its yield. Different strategies have been studied in recent years to reduce its negative effects, such as deficit irrigation and the application of reflective spray compounds. A 3-year experiment (2019-2021) was set in a factorial design in which the effect of regulated deficit irrigation and foliar kaolin spray w...
Influence of sustained deficit irrigation and foliar kaolin application on almo...
Barreales, David; Pereira, J.A.; Casal, Susana; Ribeiro, A.C.Deficit irrigation and kaolin foliar application are agronomic practices that have been demonstrated to improve productivity and physiological response in almond trees but there is no consistent information on the effects on the kernel composition. The objective of this study was to evaluate the effect of different Sustainable Deficit Irrigation (SDI) strategies and kaolin application on some physicochemical co...
Adapting almond production to climate change through deficit irrigation and fol...
Barreales, David; Capitão, Susana dos Anjos; Bento, Albino; Casquero, Pedro Antonio; Ribeiro, A.C.Irrigation is the best strategy to reduce the adverse effects of water stress on almond trees [Prunus dulcis (Mill) D.A. Web] and improve their productivity. However, in the current context of climatic change, in which the amount of water available for irrigation is increasingly limited, deficit irrigation (DI) strategies have become essential in the almond orchards of southern Europe. Other practices, such as ...
How can a changing climate influence the productivity of traditional olive orch...
Silveira, Carlos; Almeida, Arlindo; Ribeiro, A.C.Nowadays, the climate is undoubtedly one of the main threats to the sustainability of olive orchards, especially in the case of rainfed traditional production systems. Local warming, droughts, and extreme weather events are some of the climatological factors responsible for environmental thresholds in relation to crops being exceeded. The main objective of this study was to investigate the influence of microcli...
Improvement of local ozone phytotoxicity modelling for autochthonous grape cult...
Blanco-Ward, Daniel; Ribeiro, A.C.; Feliciano, Manuel; Barreales, David; Paoletti, Elena; Miranda, Ana IsabelCervical cancer prevention is based on primary prevention with vaccines against Human Papillomavirus (HPV) and secondary prevention by screening with High-Risk-HPV (Hr-HPV) detection. Since 2017, cervical cancer screening in women aged 25-60 years has been performed in Portugal using Hr-HPV detection, followed by cytology in Hr-HPV-positive cases. Herein we report the prevalence of Hr-HPV genotypes and cytologi...
Effect of temperature on the gasification of animal fat: Preliminary results
Araujo, A.L.; Silva, F.T.; Ribeiro, A.C.; Campos, J.B.L.M.; Pilão, R.M.In this work, steam reforming of animal fat was studied using a fixed bed reactor. The effect of temperature was evaluated in the range of 750 and 950°C. Gas chromatography was used to analyze the gas sample and determine the gas composition. The results showed that the temperature greatly influences the gas composition and gasification process. The gasification parameters increased with the temperature rise, a...
Extração de aromas para o desenvolvimento de kits aromáticos associados ao vinho
Bazzanella, Camila Maria; Sousa, Maria João; Ribeiro, A.C.A extração de aromas e a sua disponibilização para treino do olfato e memorização é de fundamental importância nas áreas alimentares e em particular na área da enologia. Os aromas associados ao vinho são importantes para auxiliar os profissionais do setor a identificar aromas associados a diferentes perfis, castas presentes, tipicidade, tecnologias de produção, assim como alterações que possam ocorrer durante o...
Effects of foliar and soil boron fertilization on yield, leaf physiological tra...
Silva, A.P.; Aires, Alfredo; Barreales, David; Rodrigues, M.A.; Ribeiro, A.C.; Gonçalves, Berta M.; Morais, Maria C.Boron (B) fertilizers are recognized as essential for ensuring yield and fruit quality. However, the importance of soil and foliar B fertilization in almond orchards under rainfed conditions is presently unclear. To address this literature gap, in the present study, the impact of soil and foliar application of B on leaf gas exchange, leaf photosynthetic pigments, yield, and fruit quality in almonds was investig...
Technological innovation in the traditional olive orchard management: advances ...
Silveira, Carlos; Almeida, Arlindo; Ribeiro, A.C.In Portugal, the olive orchard is the most representative agricultural crop and one of the most impactful on the national economy. Therefore, a production structure accompanying the technological advances in this field would be expected; however, such a structure has not yet been realized, especially within traditional systems. Thus, taking northeastern Portugal as a case study, where a great expression of trad...