Carla Gouveia

University of Madeira | UMA

On Madeira Island, Portugal, the avocado crop benefits from a Mediterranean climate, exhibiting exceptional phytochemical and biochemical properties. Aiming to evaluate the antioxidant quality and fatty acid composition with a commercial avocado, flours were obtained from five varieties (four regional and one commercial Hass) across different tissu...

Soil degradation derived from the combination of human activities or climate changes, emerges as a menace to agriculture and sustainable development. The compromised quality of the soil, caused by factors like excessive drainage and reduced organic matter, adversely affects its ability to retain water, perform essential functions, absorb nutrients,...

Apresentação de resultados dos ensaios realizados com milho cultivar de Santana, com aplicação de corretivos orgânicos no solo, nomeadamente composto orgânico e biochar. Apresentação foi inserida na Sessão I: Itinerários técnicos em modo de produção biológico

Encapsulation in agriculture today is practically focused on agrochemicals such as pesticides , herbicides, fungicides, or fertilizers to enhance the protective or nutritive aspects of the entrapped active ingredients. However, one of the most promising and environmentally friendly technologies, biostimulants, is hardly explored in this field. Enca...

Soil degradation derived from inappropriate, intensive agricultural practices and climatic changes, comes as a great global concern. The long periods of drought and irregular precipitation leads to reduced vegetation, intensified erosion processes and poor soils with high drainage, low organic matter content and water retention. The incorporation o...

Common bean (Phaseolus vulgaris L.) is a staple food worldwide due to its nutritional value, with high protein and minerals content. Traditional agriculture is declining worldwide due to intensive agriculture, with loss of crop biodiversity and nutritional quality. The effect of location and weather events can also affect crop yield and quality, de...

Overexploitation of resources makes the reutilization of waste a focal topic of modern society, and the question of the kind of wastes that can be used is continuously raised. Sewage sludge (SS) is derived from the wastewater treatment plants, considered important underused biomass, and can be used as a biofertilizer when properly stabilized due to...

Taro (Colocasia esculenta (L.) Schott) and sweet potato (Ipomoea batatas (L.) Lam.) are important food crops worldwide, whose productivity is threatened by climatic constraints, namely drought. Data calibration, validation, and model development of high-precision near-infrared spectroscopy (NIRS) involving multivariate analyses are needed for the f...

Taro (Colocasia esculenta (L.) Schott) is a staple food and represents an important food security role in most tropical regions. It is, unfortunately, susceptible to prolonged drought conditions. Abscisic acid (ABA) is a well-documented stress-induced phytohormone that tolerant crops usually accumulate in leaves to induce stomatal closure, preventi...

Sweet potato (Ipomoea batatas L.), typically cultivated in temperate climates under low inputs, is one of the most important crops worldwide. Abscisic acid (ABA) is an important plant stress‐induced phytohormone. Hitherto, few works analyzed the ABA function in sweet potato tissue growth. Very scarce information is available concerning the ABA role...

PT: A Madeira possui condições agroecológicas únicas, que permitem o desenvolvimento de grande diversidade de espécies frutícolas. A macieira é uma fruteira tradicional na Madeira que se distribui pelas suas freguesias montanhosas, desde o Oeste, Achadas da Cruz, até o Este, Faial. O cultivo da macieira desenvolve-se em pequenos pomares, que alberg...

Taro (Colocasia esculenta (L.) Schott) is a substantial staple food in most of the tropical regions. Prolonged exposure to drought impairs crop production worldwide. Tolerant crops have the best capability to cope and avoid drought, through phenotypic flexibility mechanisms. The water use efficiency (WUE) is well known in taro crops, but very scarc...

BACKGROUND The presence of insoluble calcium oxalate druse crystals (CaOx) in sweet potato (Ipomoea batatas) can negatively affect its nutritional quality. Photosynthesis, starch, and protein composition are linked with oxalate synthesis and tuber quality under water scarcity. Our main objective was the oxalate quantitation of sweet potato tubers a...

Sweet potato (Ipomoea batatas (L.) Lam.) is an important staple food in several regions of the world. Water scarcity is the most devastating abiotic stress, with a great impact on crop productivity, food security, and subsistence. Drought restricts the nutrient intake and transport into the plant. Tolerant crops have morphological mechanisms of dro...

Sweet potato (Ipomoea batatas L.) is an important crop in the world, cultivated in temperate climates under low inputs. Drought changes the plant biomass allocation, together with the carbon and nitrogen isotopic composition (δ13C and δ15N), whose changes are faintly known in sweet potato crops. Here, we show the biomass allocation of eight sweet p...

Madeira Archipelago holds specific maize genetic resources whose populations, representing field diversity, were previously classified into four main landrace groups. The ISOPs 0061 and 0070, with common names of “Milho Sequeiro” and “Milho Branco” yellow and white maize, respectively, represent the ideotypes of two of these landraces. These ideoty...

The archipelago of Madeira has agroecological conditions, allowing the development of a great diversity of temperate fruit species. The apple trees grown in small orchards distributed in the high altitude parishes of Madeira. Its cultivation extends from the Achadas da Cruz to Faial, being the most expressive production in Ponta do Pargo, Prazeres,...

Oxalate (calcium oxalate) accumulation in taro plants (Colocasia esculenta (L.) Schott) impacts their nutritional quality, producing acridity, causing lips, mouth and throat tissues swelling if consumed fresh. The oxalate content is related to photosynthesis, through the glycolate–glyoxylate oxidation pathway. The plant’s photosynthetic rate usuall...

Taro (Colocasia esculenta L. Schott) is an important staple food crop in tropical and developing countries, having high water requirements. The purpose of this study was to evaluate the feasibility of using carbon and nitrogen isotopic composition (δ13C and δ15N) as a physiological indicator of taro response to drought, and elucidation of the relat...

Blueberries have a well-deserved reputation as a potential functional food, supported by studies which have identified and quantified various nutrients and bioactive phytochemicals with known benefits for human diet and health. Wild blueberries have attracted particular attention due to the levels and concentrations of those phytonutrients. This st...

Taro [Colocasia esculenta (L.) Schott] is a root crop which is an important staple food in many regions of the world, producing 10.5 million tonnes on 1.4 million hectares a year. The crop is cultivated in wet (rain fed) or irrigated conditions, requiring on average 2,500 mm water per year, and in many countries it is cultivated in flooded plots. I...

The purpose of this study was to assess the influence of oxalates in plant response to stress, when taro corms and shoots are submitted to drought conditions. Oxalates (soluble, insoluble and total), chlorophyll content index (CCI), crude protein, starch, starch water solubility (SWS) and starch swelling power (SSP) were evaluated in seven taro acc...

The Phaseolus vulgaris L. is one of the traditional and most important leguminous crops in the Island of Madeira. The island´s bioclimatic tiers, agro-ecological environment and traditional farming practices had a great influence on the evolution of regional bean landraces. The variability of the nutritional and mineral seeds composition of 59 acce...

PT: O presente trabalho teve como objectivo proceder à avaliação da qualidade nutricional de 20 variedades regionais de Phaseolus vulgaris L. e à análise comparativa dos parâmetros bioquímicos (nutricionais e anti-nutricionais) obtidos recorrendo às técnicas analíticas convencionais por química molhada e de NIRS (Near Infra-Red Spectroscopy). Uma t...

PT: Nos últimos 60 anos, a agricultura intensiva contribuiu para a rápida substituição da agricultura tradicional, acelerando a perda de agrobiodiversidade, e refletiu-se nos recursos genéticos das principais culturas agrícolas. As práticas e modo de produção tradicionais, assim como a pequena propriedade agrícola têm contrariado a perda dessa dive...