DSpace Collection:http://hdl.handle.net/10174/10282024-03-04T11:45:09Z2024-03-04T11:45:09ZNovas oportunidades para um desenvolvimento rentável e sustentável da agrosilvicultura: o Alqueva como case-studyAlagador, DiogoSilva, José Rafaelhttp://hdl.handle.net/10174/356952023-11-22T10:17:47Z2023-06-13T23:00:00ZTitle: Novas oportunidades para um desenvolvimento rentável e sustentável da agrosilvicultura: o Alqueva como case-study
Authors: Alagador, Diogo; Silva, José Rafael
Editors: Alagador, Diogo; Silva, José Rafael; Sabino, Sofia; Flores, Rui; Santiago Parada, Noémi; Pinto, Luísa; Ruas, Filipa; Tomaz, Stephane
Abstract: A sociedade tem vindo a tomar consciência do valor vital de ecossistemas biodiversos e funcionais. Num mundo onde a pegada humana é extensa, raros e exíguos são os espaços onde se podem assegurar os valores ecossistémicos de uma forma duradoura. Aparte o reconhecimento da necessidade de existirem áreas de produção intensiva de alimentos, bem como de áreas de protecção exclusiva da biodiversidade e ecossistemas, a maior parte do território necessitará de ser gerido de uma forma multifuncional. Este é o desígnio inerente ao Pacto Ecológico Europeu, uma visão comunitária estratégica que pretende a unificação do desenvolvimento económico, agrícola, florestal, energético e ambiental. O projecto AgroSatAdapt tem como objectivo desenvolver o conceito de multi-funcionalidade optimizada em três regiões-teste do Alentejo. Pretende identificar quais os modos de produção que permitam maximizar a capacidade de adaptação da biodiversidade a alterações climáticas, o sequestro de carbono e retenção de água sem que para tal se percam os legítimos objectivos económicos inerentes às actividades agroflorestais. O projecto pretende igualmente informar os stakeholders sobre a utilidade da metodologia empregue, sua flexibilidade e sua actualidade num momento em que face ao emergir de mercados para pagamento por serviços de ecossistemas surgem novas oportunidades de negócio.2023-06-13T23:00:00ZPlant-nematode co-cultures in the screening of sustainable nematicides against soil-dwelling parasitic nematodes of plantsFaria, Jorge M. S.Vicente, Cláudia S. L.Rusinque, LeidyCamacho, Maria JoãoInácio, Maria Lhttp://hdl.handle.net/10174/349842023-05-04T13:37:52Z2022-01-01T00:00:00ZTitle: Plant-nematode co-cultures in the screening of sustainable nematicides against soil-dwelling parasitic nematodes of plants
Authors: Faria, Jorge M. S.; Vicente, Cláudia S. L.; Rusinque, Leidy; Camacho, Maria João; Inácio, Maria L
Abstract: The diseases caused by plant parasitic nematodes are still a serious constraint to modern global crop production. An
increasing number of active compounds in commercial nematicidal formulations is being banned from use by common
policies of pest management. Farmer communities report a low efficiency for the replacement pesticides, which reflects
on crop yield and productivity. Novel sustainable biopesticides are urgently needed to cope with global food demands
while respecting the most recent environmental policies. Plant-nematode co-cultures offer a stable biotechnological
screening tool able to assess the active compound’s nematicidal activity and its effect on host tissues, simultaneously,
in an easily accessible system that simulates natural infection. These systems are being developed and optimized at the
Nematology laboratory of INIAV. Preliminary results were obtained for co-cultures of Solanum lycopersicum with the
nematode Meloidogyne ethiopica and S. tuberosum with Globodera pallida. Future studies will target other plant parasitic
nematodes, e.g., the root lesion nematodes (Pratylenchus penetrans) in transgenic roots of potato and the pinewood
nematode (Bursaphelenchus xylophilus) on in vitro pine shoots (Pinus sp.).2022-01-01T00:00:00ZControl of the root lesion Pratylenchus penetrans - the effect of nematocidal activity of plant-derived compoundsBarbosa, PedroFaria, Jorge M. S.Figueiredo, A. C.Mota, ManuelVicente, Cláudia S. L.http://hdl.handle.net/10174/349822023-05-04T13:35:28Z2022-01-01T00:00:00ZTitle: Control of the root lesion Pratylenchus penetrans - the effect of nematocidal activity of plant-derived compounds
Authors: Barbosa, Pedro; Faria, Jorge M. S.; Figueiredo, A. C.; Mota, Manuel; Vicente, Cláudia S. L.
Abstract: The root lesion nematode, Pratylenchus penetrans, is one of the most harmful plant parasites, responsible for worldwide
productivity losses in a significant number of plant hosts. Generally, chemical control relies on synthetic compounds
used through fumigation or direct contact, which offers a systemic protection. These control methods are costly and
hazardous to the environment and to humans. Phytochemicals may play an important role in nematode control. The
nematicidal activity of eight compounds that occur naturaly in plants, from two classes of compounds, was assessed
at 2 mg/mL, for 24 h. Bioassays were performed following the standard direct contact methodology. P. penetrans was
remarkably tolerant to the tested compounds, with mortality range between 1.0 and 5.8 %. To the best of our knowledge,
the nematicidal activity of 4 phenolic compounds (catechin, caffeic acid, gallic acid and gentisic acid) was evaluated for
the first time for P. penetrans.2022-01-01T00:00:00ZInfluência do estado de maturação na qualidade de cereja ‘Sweetheart’Ricardo-Rodrigues, S.Agostinho, J.Laranjo, M.Agulheiro-Santos, A.C.http://hdl.handle.net/10174/347262023-02-24T15:55:41Z2022-02-03T00:00:00ZTitle: Influência do estado de maturação na qualidade de cereja ‘Sweetheart’
Authors: Ricardo-Rodrigues, S.; Agostinho, J.; Laranjo, M.; Agulheiro-Santos, A.C.
Abstract: The cherry is highly appreciated for its organoleptic and nutritional qualities, and for its important role in disease
prevention. The correct definition of the ripeness at harvest is indispensable for placing the cherry on the market
with high quality. Early harvesting, either for fear of rain or for immediate economic return, often occurs especially
at the beginning of the campaign. This study aims to evaluate the quality of ‘Sweetheart’ cherries at three stages of ripeness (early ripeness, commercial ripeness, and advanced ripeness), to assist the producer in defining the ideal time to harvest so that the fruit reaches the market with high quality. The results obtained suggest that the ‘Sweetheart’ cherry, at commercial ripeness, reaches values of firmness, soluble solids and acidity acceptable to the consumer. However, cherries fully ripened on the tree show better nutritional quality, with higher values of antioxidant activity, and phenolic compounds. For consumers to have cherries with high nutritional and sensory quality, the producer must determine the optimal cherry harvest stage, to minimise quality losses and dispose of production quickly and in good conditions, reducing waste.2022-02-03T00:00:00Z