Search Results - "A"
-
Disc harrowing intensity and its impact on soil properties and plant growth of agropastoral systems in the Llanos of Colombia
Published 2001“…Native savanna treatment was used as a control. Intensive disc harrowing improved macroporosity values of 0–5 cm soil layer up to 59% for grass-alone pasture system compared to native savanna. …”
Get full text
Journal Article -
Domestication patterns in common bean (Phaseolus vulgaris L.) and the origin of the Mesoamerican and Andean cultivated races
Published 2005“…The chloroplast data agree with those obtained from analyses based on morphology and isozymes and with other DNA polymorphisms in supporting independent domestications of common bean in Mesoamerica and the Andean region and in demonstrating a founder effect associated with domestication in each region. …”
Get full text
Journal Article -
Aluminum resistance in common bean (Phaseolus vulgaris) involves induction and maintenance of citrate exudation from root apices
Published 2010“…Initially, in both genotypes the short‐term (4 h) Al‐injury period was characterized by the absence of citrate efflux independent of the citrate content of the root apices, and reduction of cytosolic turnover of citrate conferred by a reduced Nicotinamide adenine dinucleotide phosphate–isocitrate dehydrogenase (EC 1.1.1.42) activity. …”
Get full text
Journal Article -
Evaluating purple passion fruit (Passifloraedulis Sims f. edulis) genetic variability in individuals from commercial plantations in Colombia
Published 2012“…Ten specimens were also included from Corpoica’s La Selva research center Passiflora germplasm bank. A non-commercial purple passion fruit plant and three species from the Passiflora genus (Passiflora maliformis, Passiflora edulis f. flavicarpa and Passiflora ligularis) were included as controls. …”
Get full text
Journal Article -
History, current status and collaborative research projects for Bemisia tabaci
Published 2001“…Biotypes have been identified in different areas of the world suggesting that B. tabaci may be a species-complex undergoing evolutionary change. …”
Get full text
Journal Article -
Influence of the Phaseolus vulgaris phaseolin level of incorporation, type and thermal treatment on gut characteristics in rats
Published 2006“…Raw phaseolin T incorporated at various levels led to an enlargement of duodenal villi together with a tendency for increased crypt depth in the jejunum (P=0·06). …”
Get full text
Journal Article -
Maize yield as affected by organic inputs and urea in the West African moist savanna
Published 2001“…Nutrient depletion is a major constraint to crop production for moist savanna soils, and inputs of nutrients are required to overcome this constraint. …”
Get full text
Journal Article -
Observations on the geographic distribution, ecology and conservation status of several phaseolus bean species in Costa Rica
Published 2001“…As most of the diversity in landraces has been explored, focus is now on the exploration of wild forms of the primary gene pool and wild species of the secondary gene pool. A germplasm collection was carried out in the field and resulted in the collection of 29 wild populations for six Phaseolus species; it complemented field work done in 1987. …”
Get full text
Journal Article -
On farm testing of integrated nutrient management strategies in Eastern Uganda
Published 2005“…This paper reports on a Participatory Learning and Action Research (PLAR) process that was initiated in three villages in eastern Uganda in September 1999 to enable small-scale farmers to reverse nutrient depletion of their soils profitably by increasing their capacity to develop, adapt and use integrated natural resource management strategies. …”
Get full text
Journal Article -
Phaseolin from Phaseolus vulgaris bean modulates gut mucin flow and gene expression in rats
Published 2010“…The hypothesis was tested using a control diet containing casein as the sole protein source and three other diets with casein being replaced by 33 and 67 % of unheated and 67 % of heated phaseolin. …”
Get full text
Journal Article -
Spatial aluminium sensitivity of root apices of two common bean (Phaseolus vulgaris L.) genotypes with contrasting aluminium resistance
Published 2007“…M Al) to different zones of the root apex using agarose blocks corroborated the importance of the transition zone (TZ, 1 2?mm) as a main target of Al. However, Al applied to the elongation zone (EZ) also contributed to the overall inhibition of root elongation. …”
Get full text
Journal Article -
Use of rainfall indices to analyze the effects of phosphate rocks on millet in the Sahel
Published 2011“…However, typical farmers in the Sahel barely use P rates above 20 kg ha-1 in view of the high cost of imported fertilizers. A low application rate of the local PR, 10 kg P ha-1, increased millet yield between 44 and 67%. …”
Get full text
Journal Article -
Interaccion micorriza vesiculo-arbuscular, Rhizobium-leguminosa en un Oxisol de los Llanos Orientales de Colombia
Published 1987“…En la tercera investigación (Experimento II), se evalúo en Centrosema la interacción MVA, Rhizobiumo N-químico (niveles equivalentes a 0, 30,55, 105,0 + Rhiz. y 30 + Rhiz. kg N ha-1) y dosis de P (0, 20, 40 y 80 kg ha-1). …”
Get full text
Journal Article -
Selección de forrajeras para zona de ladera del norte del Valle del Cauca (Colombia) mediante metodologías participativas
Published 2007“…Open evaluations, absolute evaluations and of preference order evaluation were applied; the last one was statistically analyzed with the methodology of logistical regression. A randomized block design was used, with three replicates for legumes and grasses, respectively. …”
Get full text
Journal Article -
Estado del Arte en Cambio Climático, Agricultura y Seguridad Alimentaria en Panamá
Published 2014“…Panamá ha sufrido diversos eventos climáticos que han afectado al sector agropecuario y la seguridad alimentaria de la población panameña; es por esto que el Ministerio de Desarrollo Agropecuario en conjunto con la Autoridad Nacional del Ambiente en colaboración con el Programa de Investigación CGIAR en Cambio Climático, Agricultura y Seguridad Alimentaria (CCAFS) en América Latina y con apoyo del Consejo Agropecuario Centroamericano (CAC) presentan el “Estado del Arte en Cambio Climático, Agricultura y Seguridad Alimentaria de Panamá”, que incluye el marco gubernamental y actores involucrados en torno a esta temática. Donde se evidencia que gran parte de las investigaciones y proyectos en el país se orientan hacia la adaptación al cambio climático, con un enfoque particular en el recurso hídrico, y en la preparación del sector agropecuario para enfrentar la variabilidad climática y aumentar su resiliencia. …”
Get full text
Brief -
Options for intensification of mixed crop-livestock systems in rural communities of south-western Niger: Prospects and constraints
Published 2004“…Explorative bio-economic optimisation models used to quantify and compare selected performance indicators of various farm types under different conditions revealed important socio-economic and ecological trade-offs. A recursive approach was used to project the analysis to 2020. …”
Get full text
Conference Paper -
Implications of changing domestic policies and globalisation for crop-livestock systems Development in West africa
Published 2004“…Globalisation, manifested in increased international trade, foreign direct investment and capital flows, is a phenomenon that is likely to assume greater importance in the future. …”
Get full text
Conference Paper -
Low input cattle production systems in tropical Africa: An analysis of actual and potential cow-calf productivity
Published 1996“…The majority of indigenous cows in ranches and research stations produced a weaned calf weight of 33-38 kg/100 kg cow or on average 75 percent more than cows in traditional systems. …”
Get full text
Conference Paper -
Geographic Differentiation of Colombian Neoleucinodes elegantalis (Lepidoptera: Crambidae) Haplotypes: evidence for solanaceae host plant association and Holdridge life zones for g...
Published 2013“…The most divergent populations of N. elegantalis were found in southern Colombia, at a location were Solanun quitoense might have originated. …”
Get full text
Journal Article -
Regional nitrogen budget of the Lake Victoria Basin, East Africa: Syntheses, uncertainties and perspectives
Published 2014“…The fraction of riverine N export to Lake Victoria accounted for 16%, which is much lower than for watersheds located in Europe and USA (25%). A significant reduction of the uncertainty of our N budget estimate for Lake Victoria Basin would be possible if better data on livestock systems and riverine N export were available. …”
Get full text
Journal Article