A5044927740- Plant Virus Research Studies
- Radioactivity and Radon Measurements
- Agronomic Practices and Intercropping Systems
- Plant pathogens and resistance mechanisms
- Legume Nitrogen Fixing Symbiosis
- Soil Carbon and Nitrogen Dynamics
- Pesticide and Herbicide Environmental Studies
- Mining and Resource Management
- Geological and Tectonic Studies in Latin America
- Nematode management and characterization studies
- Geochemistry and Geologic Mapping
- Plant Pathogens and Fungal Diseases
- Heavy metals in environment
- Oil Palm Production and Sustainability
- Ruminant Nutrition and Digestive Physiology
- Environmental and Ecological Studies
- Plant Pathogenic Bacteria Studies
- Cassava research and cyanide
- Rabbits: Nutrition, Reproduction, Health
- Agriculture and Rural Development Research
- Geochemistry and Elemental Analysis
- Heavy Metal Exposure and Toxicity
- Agricultural and Food Production Studies
- Environmental and Social Impact Assessments
- Soil and Water Nutrient Dynamics
Universidad Tecnológica de Panamá
2021-2025
Instituto Politécnico Nacional
2020
Adaptive Biotechnologies (United States)
2019
Canadian Society of Microbiologists
1970
The El Valle Volcanic Complex, located in the province of Cocle, Panama, presents geological characteristics that could be linked to public health problems. This study focuses on municipalities San Juan de Dios, Pajonal, and Caballero, where water is consumed directly from springs (groundwater outcrops). region has a high incidence non-traditional chronic kidney disease (nt-CKD) may associated with natural presence potentially toxic elements (PTEs) water. aimed analyze concentration PTEs...
Abstract The effect of 2,4‐dichloro‐6‐(o‐chloroanilino)‐ s ‐triazine (dyrene) and manganese ethylene bisdithiocarbamate (maneb) at 0, 15, 60, 240, 960 ppm on nitrification 100 applied NH 4 ‐N, ammonification soil nitrogen, the degradation these fungicides, were studied in a lateritic clay fertile loam incubated 24C for 16 weeks. Inhibition by fungicides was lesser shorter duration rapidly nitrifying than slow soil. chemicals inhibited ammonia oxidizing bacteria but not nitrite bacteria....
Mining affects the environment, particularly through persistence of accumulation tailings materials; this is aggravated under tropical climatic conditions, which favours release potentially toxic elements (PTEs) bioavailable to local flora and fauna supposing a risk human health. The Remance gold mine (Panamá), exploited intermittently for more than 100 years, has remained derelict over 20 years. Within area live farmers who carry out subsistence agriculture livestock activities. objective...
Un virus (BVBMV) capaz de provocar ligeros síntomas mosaico y el bandeado las nervaduras en varias especies plantas fue aislado habichuelas (Phaseolus vulgaris L.) cultivadas un predio experimental. El se transmitió por medios mecánicos a través áfidos. Los resultados obtenidos estudios realizados sobre la transmisibilidad, gama hospedadoras, serología propiedades físicas del referido agente viroso indican que trata una cepa, posiblemente nueva, común pepinillo (CMV).
Nodulation was recorded on 13 previously unreported indigenous legume species of Puerto Rico. A description the nodule, Rhizobium culture, and soil moisture conditions at site collection are given for each new record.
La piña es el segundo cultivo perenne tropical con más importancia a nivel mundial después del banano, aportando 20% volumen total de frutos tropicales. calidad la panameña deleite nacional y mercados internacionales como Europa Estados Unidos, siendo Chorrera mayor productor país. El objetivo este estudio realizar un muestreo geoquímico aplicado labores agrícolas, fin generar mapas geoquímicos pH conductividad eléctrica que sean utilidad producción finca en estudio. se realizó una malla...
El Programa Internacional de Geociencias y Geoparques, la UNESCO, reconoce el valor excepcional que tiene conocimiento ciencia geológica en uso los recursos tierra para mantenimiento nuestra sociedad, prevención desastres naturales, cambio climático, riesgos geológicos interés este despierta turistas. Considera oportuno unir geológico a otros valores ecológicos culturales potenciar un desarrollo económico sostenible plano local, base todos subproductos genera turismo: empleos nuevas...
Durante 18 meses se estudiaron, en condiciones de laboratorio, los cambios producidos microorganismos presentes el suelo arcilloso ácido laterítico Humatas y alcalino fértil San Antón lómico, ambos incubados a 23° ± 1° C. después haber recibido aplicaciones 2,4- dicloro-(o-cloroaniline)-s-triazina (Dyrene) etileno bisditiocarbamato manganeso (Maneb) concentraciones 0, 60, 240 960 p.p.m. En general, número bacterias aumentó actinomicetos hongos disminuyó, especialmente las más altas agentes...
Se llevó a cabo en Puerto Rico una búsqueda por legumbres nativas tropicales noduladas de posible utilidad agrícola. hallaron 49 estas especies legumbres, las cuales 13 eran y no se habían informado antes. describen los nódulos rizóbicos y, además, presentan observaciones agronómicas sobre el hábito crecimiento plantas sus habitats.
Nitrification was inhibited in an acid soil by 60 p/m or more of Nemagon; the NH4+ oxidizing bacteria being affected but not Nitrobacter, as NO2- accumulation observed. Nitrogen mineralization even at 20,000 Nemagon and increase available P, Mn, a rise pH occurred both alkaline soils. Extractable zinc increased soil. DD extremely toxic to nitrifying bacteria; much so than Nemagon. It Nitrobacter. progressively depressed with increasing levels DD. resulted decrease extractable P. Mn soils,...
<p><strong>Abstract</strong></p><p>The Remance gold mine, in Veraguas (central Panama), had its last mining operation 1999, using the cyanidation process for Au separation. As a result of this activity, three waste tailings were exposed to weather, addition mine dumps and open pit areas. Currently area is inhabited by peasants who develop subsistence agriculture livestock. Therefore, objective study has been evaluate...