Descubre y comparte nuestro conocimiento público

Se han encontrado 2.202 recursos

Resultados de búsqueda

In tropical dry seasons, survival of small arthropods such as predatory mites is often negatively affected by low relative humidity (RH). For species that do not diapause or migrate to refuges, the ability of the habitat to mitigate climatic conditions becomes crucial. ...


Zundel, C.Nagel, P.Hanna, R.Korner, F.Scheidegger, Urs C.[Environment and hostplant genotype effects on the seasonal dynamics of a predatory mite on cassava in subhumid tropical Africa]Environment and hostplant genotype effects on the seasonal dynamics of a predatory mite on cassava in subhumid tropical Africa

Diagnostic surveys were conducted in 2002 and 2003 in order to provide a comprehensive and detailed assessment of the status of cassava mosaic disease (CMD) in the Republic of Congo (ROC) and to determine if the disease was spreading. In 2002, 105 farmers’ fields were assessed in the four major c...


Ntawuruhunga, PheneasOkao-Okuja, G.Bembe, A.Obambi, M.Armand Mvila, J.C.Legg, J.P.[Incidence and severity of cassava mosaic disease in the Republic of Congo]Incidence and severity of cassava mosaic disease in the Republic of Congo

Iron (Fe) and Zinc (Zn) concentrations in tuberous roots of twenty-five cassava (Manihot esculenta Crantz) genotypes were determined over 2 years (2004/2005 and 2005/2006) at five locations representing distinct agroecologies in Nigeria. The objectives were to study the magnitude and nature of ge...


Ssemakula, G.N.Dixon, Alfred G.O.Maziya-Dixon, B.B.[Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots]Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots

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 Carot...


Jaramillo Valencia, Angélica M.Londoño, Luis FernandoOrozco, Juan CamiloPatiño, GelverBelalcázar, JohnDavrieux, FabriceTalsma, Elise F.[A comparison study of five different methods to measure carotenoids in biofortified yellow cassava (Manihot esculenta)]A comparison study of five different methods to measure carotenoids in biofortified yellow cassava (Manihot esculenta)

CIAT systematically evaluates all germplasm accessions in diverse sites in Colombia, to obtain a broad characterization of adaptation to different soils and climates, resistance to many pests and diseases, and quality traits. The information is used primarily to select parents which can potential...


International Center for Tropical Agriculture[Cassava Diseases Evaluation - Edaphoclimatic Zone 2: Lowland Tropics; Acid Soils; Medium to High Precipitation]Cassava Diseases Evaluation - Edaphoclimatic Zone 2: Lowland Tropics; Acid Soils; Medium to High Precipitation
International Center for Tropical AgricultureCaicedo, AMCalatayud, Paul-AndréInstitut de recherche pour le développement, FranceBellotti, Anthony C.[Potential of biocontrol of six entomopathogenic nematodes species against Cyrtomenus bergi in the laboratory]Potential of biocontrol of six entomopathogenic nematodes species against Cyrtomenus bergi in the laboratory
Morillo Coronado, Ana Cruz[Mapeo de regiones del genoma asociadas con el contenido de B-caroteno en yuca Manihot esculenta Crantz. Tesis (Doctor en Ciencias Agrarias, Área Mejoramiento Genético de Plantas)]Mapeo de regiones del genoma asociadas con el contenido de B-caroteno en yuca Manihot esculenta Crantz. Tesis (Doctor en Ciencias Agrarias, Área Mejoramiento Genético de Plantas)
Laberry Saavedra, Rafael AlbertoLozano T., José Carlos[El añublo bacterial de la yuca por Xanthomonas campestris pv. manihotis: estado actual]El añublo bacterial de la yuca por Xanthomonas campestris pv. manihotis: estado actual
Autor: Herren, H.

The International Institute of Tropical Agriculture (IITA), the Centro International de Agricultura Tropical (CIAT), and many national agricultural research systems (NARS) have devoted considerable attention to cassava improvement. However, many biotic constraints still limit the expansion of thi...


Herren, H.[Cassava pest and disease management: an overview]Cassava pest and disease management: an overview

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso