A5054213914- Growth and nutrition in plants
- Agricultural and Food Sciences
- Forest ecology and management
- Seed Germination and Physiology
- Soil Management and Crop Yield
- Environmental and biological studies
- Plant tissue culture and regeneration
- Plant Stress Responses and Tolerance
- Rural Development and Agriculture
- Plant responses to water stress
- Occupational Health and Safety Research
- Pineapple and bromelain studies
- Remote Sensing and LiDAR Applications
- Phytochemistry Medicinal Plant Applications
- Fish biology, ecology, and behavior
- Plant nutrient uptake and metabolism
- Flowering Plant Growth and Cultivation
- Bioenergy crop production and management
- Botanical Research and Applications
- Conservation, Biodiversity, and Resource Management
United States Department of State
2024
Universidade Federal Rural da Amazônia
2015-2022
ABSTRACT Seedlings of açaí obtained from plant material native to floodplains (from Laranjeira and Muaná) adapted upland areas (cv. BRS-Pará ecotype Hideo) were cultivated between March October 2013 in a greenhouse, test the hypothesis that water requirement for seedling production varies according origin material. The seedlings subjected watering regimes corresponding 40, 70, 100 130% field capacity. Regardless material, vigorous was feasible only under irrigation produced capacity showed...
Studies dealing with the behavior, initial development, uptake and nutrient use efficiency of native Amazonian trees as a function fertilization are extremely important to support actions for recovery management degraded areas. The objective this study was evaluate influence different levels phosphorus (P) potassium (K) on growth in Tachigali vulgaris plantation. experiment installed tropical climate region eastern Amazonia, Brazil. Three doses P (0, 65.22 130.4 kg ha-1) three K 100 200 were...
This study aimed to evaluate the effects of sources and increasing doses nitrogen on growth gas exchange in plants Tachigali vulgaris.The experiment was conducted a greenhouse period from April July 2015.The experimental design randomized blocks factorial scheme (4 x 5), corresponding 4 5 with four replications.The seedlings were grown pots containing 3 dm soil.Nitrogen such as urea [(NH₂)₂CO], ammonium nitrate (NH4NO3), sulfate [(NH4) 2SO4] calcium [Ca (NO3)2] tested five 0, 75, 150, 225...
This study has aimed to test different methods of overcoming dormancy, accelerating and standardizing the initial seedling settling determining pre-germination treatment that is more effective for species Dialium guianense (Aubl.) Sandwitch. The seeds were submitted following treatments: Control (T1) – only asepsis was done by immersion in sodium hypochlorite (2 %) 3 minutes; sulfuric acid (98 % p.a.) 5, 10, 15 20 minutes (T2, T3, T4 T5, respectively); mechanical chisel plow (T6) (2%) seed...
The objective of this work was to evaluate the influence meteorological variables on height and diameter increment in a Tachigali vulgaris plantation fertilized with NPK. data were recorded by agroclimatological station Embrapa Amazônia Oriental, located Igarapé-Açu, period from March 2016 June 2018. monitoring rate plants done. collected were: monthly temperature, average maximum minimum temperature andprecipitation. quarterly periodic occurred June-September 2017 quarter, while highest...
O presente trabalho teve como objetivo, demonstrar os principais mecanismos utilizados no plantio e o quão esta atividade é rentável. A área de estudo está localizada Município Santarém-Novo-PA, sendo dados originários povoamento homogêneo paricá (Schizolobium amazonicum), em arranjo 3 m x m, 300 hectares. Foram avaliados, investimento na implantação, manutenção, colheita transporte do plantio, assim a produtividade povoamento. indicadores econômicos: Valor Presente Líquido (VPL); Anual...
The objective of this work was to evaluate the influence shade level on production T. myrmecophila seedlings. After 30 days seedling transplantation, seedlings were submitted following treatments: 100% light (full sun), 75% and 50% light. statistical design completely randomized with 5 replicates 10 each per treatment. data analyzed by repeated measures in time, measurements, performed every (150 evaluation). variables shoot height diameter. environment luminosity one that contributed most...
The study on nutritional needs of the tree species T. vulgaris, has a great contribution to formation and conduction plantations, resulting in their choice terms potential that been demonstrated comparative trials fast growing (more than 0.60 m/year height) strong regional demand for firewood coal. objective this was evaluate growth vulgaris response application nitrogen, phosphorus potassium, from beginning establishment until second year after planting. carried out municipality...
The propagation of S. amazonicum by seeds can result in uneven seedlings that are subject to poor quality, which is detrimental uniformity and productivity. absence an efficient method vegetative the species may be a limitation for genetic improvement, consequently increase productivity plantation. This study aimed evaluate effect indole-3-butyric acid (IBA) rooting cuttings paricá - Schizolobium parahyba var. (Huber ex Ducke) Barneby. obtained from stems then were treated with IBA...
Espécimes de Pectis elongata Kunth apresentam variações aromas quando maceradas, alguns acessos aroma cominho(PCH), enquanto outros capim-santo(PCS). O objetivo deste trabalho foi avaliar as morfoanatômicas dentre esses espécimes e caracterizá-los nesses aspectos. A partir material fértil com mesmo nível desenvolvimento, foram feitos registros morfológicos desenhos à Nankin, seguindo técnicas usuais na composição pranchas para fins taxonômicos. As fotomicrografias em microscopia fotônica...
Objetivou-se avaliar diferentes métodos de superação dormência sementes para potencializar a propagação Tachigali myrmecophila (Ducke) Ducke.Foram realizados cinco tratamentos: testemunha -fazendo-se apenas assepsia das por meio da imersão em hipoclorito sódio (2%) minutos; escarificação mecânica -assepsia (2 %) minutos e abrasão superfície semente à lixa nº 80, no lado oposto micrópila sementes, não danificar o embrião; ácido sulfúrico (98% p.a.) 10 ou 20 águaassepsia 5 água 24...
As boas propriedades da madeira de teca lhe conferem múltiplas aplicações, sendo muito valorizada no mercado internacional como nobre e alto valor agregado. O presente trabalho teve objetivo determinar os custos um povoamento florestal teca, assim as receitas geradas, por meio demonstrar dos cada etapa do empreendimento em estudo o retorno financeiro atividade. A área está localizada Município Santarém-Novo-PA, dados originários homogêneo Teca (Tectona grandis L. f.), arranjo 3 m x 4 m, 300...
Este trabalho objetivou identificar riscos ambientais para os ostreicultores do Nordeste Paraense, aumentar a segurança trabalhador na execução dessa atividade, descrevendo atividade ostreicultura, identificando possíveis físicos, biológicos, e ergonômicos ocorridos durante as etapas da assim como descrever medidas preventivas propondo treinamentos ginastica laborais desenvolvidas produtores ostreicultura. Foi observado altos índices de problemas saúde o pouco conhecimento respeito prevenção...