116 documents found, page 1 of 12
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...
Differential responses of photosynthesis, yield and soil properties 4 years aft...
Martins, Sandra; Brito, Cátia; Gonçalves, Alexandre; Moutinho-Pereira, José; Pereira, Ermelinda; Arrobas, Margarida; Rodrigues, M.A.; Nunes, FernandoOlive orchards represent a key agricultural system in the Mediterranean Basin. Soil degradation processes associated with unsustainable agronomic practices and climate change could severely impact the sustainability of Mediterranean rainfed olive orchards. In this context, soil amendments are important tools that can be used to enhance soil fertility for sustained environmental quality and plant performance. In...
Are tomato plants co-exposed to heat and salinity able to ensure a proper carbo...
Rodrigues, Francisca; Sousa, Bruno; Soares, Cristiano; Moreira, Diana; Pereira, Cláudia; Moutinho-Pereira, José; Cunha, Ana; Fidalgo, FernandaAbiotic stress combinations, such as high temperatures and soil/water salinization, severely threaten crop productivity worldwide. In this work, an integrative insight into the photosynthetic metabolism of tomato plants subjected to salt (100 mM NaCl) and/or heat (42 °C; 4 h/day) was performed. After three weeks, the stress combination led to more severe consequences on growth and photosynthetic pigments than t...
On sandy, boron-poor soils, liming induced severe boron deficiency and drastica...
Arrobas, Margarida; Raimundo, Soraia; Conceição, Nuno; Moutinho-Pereira, José; Correia, Carlos M.; Rodrigues, M.A.In the northeast of Portugal, like in many parts of the world, most soils are acidic, which may hamper crop productivity. This study presents the findings of a factorial experiment on olive (Olea europaea L.) involving three factors: (i) soil type [schist (Sch) and granite (Gra)]; (ii) cultivars [Cobrançosa (Cob) and Arbequina (Arb)]; and (iii) fertilizer treatments [liming (CaCO3) plus magnesium (Mg) (LMg), ph...
Olive yield and physicochemical properties of olives and oil in response to nut...
Silva, Ermelinda; Gonçalves, Alexandre; Martins, Sandra; Brito, Cátia; Ferreira, Helena; Ferreira, Luís M.M.; Moutinho-Pereira, José; Rodrigues, M.A.The effects of mineral fertilizers on the physicochemical properties of olives and oil under rainfed conditions is scarce. In this three-year study, the results of a nitrogen (N), phosphorus (P), potassium (K) and boron (B) fertilization trial carried out in a young rainfed olive grove and arranged as a nutrient omission trial are reported. The control consisted of the application of N, P, K and B (NPKB) and fo...
Moderate nitrogen rates applied to a rainfed olive grove seem to provide an int...
Silva, Ermelinda; Gonçalves, Alexandre; Martins, Sandra; Pinto, Luís; Rocha, Luís; Ferreira, Helena; Moutinho-Pereira, José; Rodrigues, M.A.Nitrogen (N) fertilization has been extensively studied all over the world, not only due to its impact on plant growth and yield, but also on product quality. Olive oil is a natural product highly valued by the markets, due to its role in the Mediterranean diet, but only when its quality is above legally established standards. Thus, it is important to continue to study how cropping practices can impact the qual...
Photosynthesis, yield, nutrient availability and soil properties after biochar,...
Lopes, João Ilídio; Arrobas, Margarida; Raimundo, Soraia; Gonçalves, Alexandre; Brito, Cátia; Martins, Sandra; Pinto, Luís; Moutinho-Pereira, JoséSoil conditioners and beneficial microorganisms are important tools that can be used to increase the sustainability of agro-systems. However, the high diversity of conditions where they can be applied may influence the results, which requires extensive field research. In this study, a field trial of four years was conducted in olive (Olea europaea L.) to assess the effect of biochar, zeolites and a commercial m...
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...
Grey and black anti-hail nets ameliorated apple (Malus × domestica borkh. cv. g...
Brito, Cátia; Rodrigues, M.A.; Pinto, Luís; Gonçalves, Alexandre; Silva, Ermelinda; Martins, Sandra; Rocha, Luis; Pavia, Ivo; Arrobas, MargaridaThe use of anti-hail nets on orchards changes the microclimate underneath the net. This might be of great importance in apple growing regions characterized by high radiation levels and hot and dry climates during the summer season. But, depending on the net colour and on the local climatic conditions, the shade promoted triggers different responses by the trees. Grey and black anti-hail nets were applied in an ...