33 documents found, page 1 of 4
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...
Kaolin foliar spray induces positive modifications in volatile compounds and fr...
Dinis, Lia Tânia; Pereira, Sandra; Fraga, Irene; Rocha, Sílvia M.; Costa, Carina; Martins, Cátia; Vilela, Alice; Arrobas, MargaridaSolar radiation and temperature play crucial roles in grapevine metabolic processes and are known to have a positive impact on grape berry composition; however, excessive exposure to these factors can be detrimental. Kaolin-based particle film technology has emerged as a valuable solution for mitigating the effects of heat and water stresses in vineyards. This work aimed to evaluate the effects of kaolin applic...
Silicon application effect on berry quality of Touriga Franca variety in the Do...
Mota, Natalia; Ribeiro, A.C.; Moutinho-Pereira, José; Dinis, Lia TâniaThe warmer and drier climate will challenge Portuguese viticulture negatively impacting the economy, particularly for renowned winemaking regions such as the Douro Demarcated Region. In the context of climate change, the production of grapes and the sustainability of the vineyard are vulnerable to the effects of high radiation, heat and drought during the summer period. These conditions affect negatively the vi...
Kaolin and salicylic acid alleviate summer stress in rainfed olive orchards by ...
Brito, Cátia; Dinis, Lia Tânia; Silva, Ermelinda; Gonçalves, Alexandre; Meijón, Mónica; Escandón, Mónica; Arrobas, Margarida; Rodrigues, M.A.In a changing world, the search for new agronomic practices that help crops to maintain and/or increase yields and quality is a continuous challenge. We aim to evaluate kaolin (KL) and salicylic acid (SA) effectiveness as summer stress alleviating agents through physiological, biochemical and immunohistochemical analysis. Olive trees (Olea europaea L. cv. Cobrançosa) grown under rainfed conditions were sprayed ...
Olive tree physiology and chemical composition of fruits are modulated by diffe...
Gonçalves, Alexandre; Silva, Ermelinda; Brito, Cátia; Martins, Sandra; Pinto, Luís; Dinis, Lia Tânia; Luzio, Ana; Martins-Gomes, CarlosTo overcome constrains affecting olive groves, cropping practices focusing on agronomic water use efficiency and their impact on quality parameters must be investigated. We evaluated the response of olive trees (Olea europaea, cv. Cobrançosa) to different water regimes, full irrigation (FI, 100% ETc) and three deficit irrigation strategies (DIS) (regulated (RDI, irrigated with 80% of crop evapotranspiration (ET...
Use of kaolin as a reflective clay improves olive tree physiological and yield ...
Brito, Cátia; Gonçalves, Alexandre; Silva, Ermelinda; Martins, Sandra; Pinto, Luís; Rocha, Luís; Pavia, Ivo; Luzio, Ana; Dinis, Lia TâniaOlive tree (Olea europaea L.) growing area is threatened by the current and predicted adverse environmental conditions, affecting negatively plant performance and yield. Thus, agronomic strategies to offset those negative effects and improve olive orchards sustainability need to be implemented. In this regard, we propose the use of kaolin particle film, a natural heat and irradiance reflecting clay. To achieve ...
Use of kaolin as a summer stress alleviating product in olive orchards under ra...
Brito, Cátia; Dinis, Lia Tânia; Silva, Ermelinda; Gonçalves, Alexandre; Rocha, Luís; Rodrigues, M.A.; Moutinho-Pereira, José; Correia, Carlos M.In a changing world, where is expected the temperatures rising and the reduction in precipitation in some semi-arid areas of the globe, the search for new agronomic practices that help crops to maintain and/or increase yields and quality is a continuous challenge. Kaolin (KL) exogenous application has been considered a short-term solution to alleviate the adverse effects of summer stress. The formed particle fi...
Impacto da aplicação foliar de caulino na produção do olival sob rega deficitár...
Gonçalves, Alexandre; Silva, Ermelinda; Martins, Sandra; Brito, Cátia; Pinto, Luís; Rocha, Luís; Pavia, Ivo; Luzio, Ana; Dinis, Lia Tânia; Gomes, CarlosAs alterações climáticas projetadas para a bacia do Mediterrâneo, caracterizadas por verões mais severos associados a baixa pluviosidade, carga térmica excessiva e elevados níveis de irradiação poderão afetar a sustentabilidade da olivicultura. Neste estudo, foi investigado a aplicação foliar de caulino, uma prática agrícola inovadora que mostrou anteriormente melhorar a eficiência no uso da água em diferentes ...
Kaolin and salicylic acid alleviate summer stress effects on rainfed olive orch...
Brito, Cátia; Dinis, Lia Tânia; Luzio, Ana; Silva, Ermelinda; Gonçalves, Alexandre; Mejón, M.; Escandón, Mónica; Arrobas, Margarida; Rodrigues, M.A.In a changing world, the search for new agronomic practices that help crops to maintain and/or increase yields and quality is a continuous challenge. Olive trees cultivated under rainfed conditions were sprayed with 5% kaolin (KL) and 100 μM salicylic acid (SA) during two consecutive years in the beginning of the summer season. Exogenous KL enhanced relative water content (RWC), stomatal conductance (gs) net ph...
Respostas fisiológicas da oliveira e da composição da azeitona à aplicação de boro
Silva, Ermelinda; Gonçalves, Alexandre; Martins, Sandra; Brito, Cátia; Pinto, Luís; Rocha, Luís; Pavia, Ivo; Luzio, Ana; Dinis, Lia Tânia; Gomes, CarlosO boro (B) é um elemento essencial para as plantas, sendo a sua deficiência na oliveira muito comum. As principais funções do boro estão relacionadas com a integridade e funcionalidade das membranas e paredes celulares, desenvolvimento de frutos e sementes, transporte de açúcares e com relações hídricas e hormonais. O estudo foi realizado em Bragança num olival de sequeiro, tendo sido iniciado em 2013 em planta...