publication
Predicting runoff risks by digital soil mapping
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/77398
Abstract
Digital soil mapping (DSM) permits continuous mapping soil types and properties through raster formats considering variation within soil class, in contrast to the traditional mapping that only considers spatial variation of soils at the boundaries of delineated polygons. The objective of this study was to compare the performance of SoLIM (Soil Land Inference Model) for…
publication
Comparative morphology, biology and histology of reproductive development in three lines of Manihot esculenta Crantz (Euphorbiaceae: Crotonoideae)
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/51500
Publication year
2013
Authors
Perera, Prasanthi I.P.
Quintero, M.
Dedicova, Beata
Kularatne, J.D.J.S.
Ceballos, H.
Full…
publication
Mutation breeding for heat and drought tolerance in tepary bean (<em>Phaseolus acutifolius</em> A. Gray)
https://hdl.handle.net/10568/116165
Abstract
Tepary bean (<em>Phaseolus acutifolius</em> A. Gray) is more heat and drought tolerant than common bean (<em>P. vulgaris L.</em>). Four hundred mutant lines of two tepary accessions (G40068 and G40159) were generated by ethyl methane sulfonate (EMS) treatment. In preliminary studies of the M5 mutant lines under abiotic stress, three mutant lines (CMT…
publication
Biological control of an invasive pest eases pressures on global commodity markets
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/97455
Abstract
In an increasingly globalized world, invasive species cause major human, financial, and environmental costs. A cosmopolitan pest of great concern is the cassava mealybug Phenacoccus manihoti (Hemiptera: Pseudococcidae), which invaded Asia in 2008. Following its arrival, P. manihoti inflicted measurable yield losses and a 27% drop in…
publication
Large scale land acquisitions and REDD+: a synthesis of conflicts and opportunities
https://hdl.handle.net/10568/80729
Abstract
Large scale land acquisitions (LSLA), and Reducing Emissions from Deforestation and forest Degradation (REDD+) are both land based phenomena which when occurring in the same area, can compete with each other for land. A quantitative analysis of country characteristics revealed that land available for agriculture, accessibility, and political stability are key explanatory factors for a country being targeted…
publication
Digital descriptors sharpen classical descriptors, for improving genebank accession management: A case study on Arachis spp. and Phaseolus spp.
https://hdl.handle.net/10568/173546
Abstract
High-throughput phenotyping brings new opportunities for detailed genebank accessions characterization based on image-processing techniques and data analysis using machine learning algorithms. Our work proposes to improve the characterization processes of bean and peanut accessions in the CIAT genebank through the identification of phenomic…
publication
A bioassay to test HCN toxicity to the burrowing bug, Cyrtomenus bergi
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/42516
Publication year
2003
Authors
Cortés González, María Luisa
Sánchez, T.
Riis, L
Bellotti, Anthony C.
Calatayud, Paul-André
DOI
https://doi.org/10.1046/j.0013-8703.2003.00108.x
Publication Type…
publication
Do additional sugar sources affect the degree of attendance of Dysmicoccus brevipes by the fire ant Solenopsis geminata?
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/51427
Abstract
Mutualistic interactions between ants and Hemiptera are mediated to a large extent by the amount and quality of sugar‐rich honeydew produced. Throughout the neotropics, the predaceous fire ant Solenopsis geminata (Fabricius) (Hymenoptera: Formicidae) is found in association with colonies of the…
publication
Evaluación preliminar de técnicas de crioconservación en una accesión de Solanum phureja
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/44324
Abstract
The Tibaitatá Research Center of Corpoica is the repository of the main Colombian potato germplasm collection with 1098 accessions, 151 belonging to Solanum phureja (98 preserved in vitro and 53 in the field), a key species because it posses resistant genes against Phytophtora infestans and because it is an important food resource…
publication
Nutrient composition and in vitro ruminal fermentation of tropical legume mixtures with contrasting tannin contents
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/43898
Abstract
Various combinations of a low-tannin herbaceous legume (Vigna unguiculata) and foliage of tanniniferous shrub legumes (Calliandra calothyrsus, Flemingia macrophylla and Leucaena leucocephala) or a low-tannin shrub legume (Cratylia argentea), all mixed together with a low-quality tropical grass (Brachiaria…
publication
Morpho-anatomical adaptations to waterlogging by germplasm accessions in a tropical forage grass
https://hdl.handle.net/10568/35019
Abstract
Soil waterlogging reduces gas exchange between the soil and the atmosphere, leading to oxygen deprivation in the rhizosphere. Brachiaria spp. are the most widely sown forage grasses in tropical America. Among commercial Brachiaria grasses, B. humidicola shows superior tolerance to waterlogged soils based on maintenance of growth and reduced leaf chlorophyll loss and senescence. However, little…
publication
Waterlogging-induced changes in root architecture of germplasm accessions of the tropical forage grass Brachiaria humidicola
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/42286
Abstract
Waterlogging is one of the major factors limiting the productivity of pastures in the humid tropics. Brachiaria humidicola is a forage grass commonly used in zones prone to temporary waterlogging. Brachiaria humidicola accessions adapt to waterlogging by increasing aerenchyma in nodal roots above…
publication
Modelo de optimización para los sistemas de producción agropecuarios de la microrregión Valle del Cesar, Colombia
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/44358
Abstract
Colombia is going through a dynamic research and technology transfer effort in order to improve its livestock enterprise. Animal production system of twenty-two ecoregions in the lowland tropics are being characterized for ex-ante analysis to define technological alternatives. The Valley of Cesar in…
publication
A comparison study of five different methods to measure carotenoids in biofortified yellow cassava (Manihot esculenta)
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/99098
Abstract
The most commonly used method for measuring carotenoid concentration is high-performance liquid chromatography (HPLC). Nevertheless, easier, quicker, and less costly proxy methods exist. We aimed to determine the diagnostic performance of several proxy methods: the spectrophotometer, iCheck Carotene,…
publication
Novel germplasm of tepary and other Phaseolus bean wild relatives from dry areas of Southwestern USA
https://hdl.handle.net/10568/177836
Abstract
Heat and drought stresses threaten global bean production. Additional genetic resources are needed in genebanks for future improvement of bean crops through breeding for tolerance. The USA southwestern Sky Island mountains contain such genetic resources that have not been adequately collected nor characterized. Continuing the work done in 2023, a 9-day exploration in 2024 in southern New…
