publication
Estimating total losses from parasitoids for a field population of a continuously breeding insect, cassava mealybug, Phenacoccus herreni, (Homoptera: Pseudococcidae) in Colombia, S.A.
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/43419
Abstract
A Phenaccocus herreni Cox & Williams population studied in Colombia, S.A., across a complete cassava crop cycle did not exceed 81 mealybugs/plant. P. herreni densities in Colombia were highest in the dry season, as were levels of…
publication
Diversidad genética de la colección núcleo de silvestres de fríjol común (Phaseolus vulgaris L.) analizados mediante microsatélites fluorescentes
https://hdl.handle.net/10568/77649
Abstract
Las colecciones núcleo desarrollan un papel importante en la utilización de los recursos genéticos, ya que poseen el material prioritario para la mejora. El desarrollo y la aplicación de SSRs facilitan la adquisición de una gran cantidad de información genética para la caracterización de colecciones de germoplasma. El objetivo de este estudio fue…
publication
Tecnologías que ayudan a tomar mejores decisiones
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/70525
Publication year
2010
Authors
International Center for Tropical Agriculture
Full Citation
Tecnologías que ayudan a tomar mejores decisiones. 2010. Centro Internacional de Agricultura Tropical (CIAT), Cali, CO. 8 p. (CIAT Hoja Informativa No. 7…
publication
Principios básicos sobre la selectividad de los herbicidas
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/54222
Publication year
1981
Authors
Doll, Jerry D.
Fuentes de Piedrahíta, Cilia L.
Full Citation
Doll, Jerry D.; Fuentes de Piedrahíta, Cilia L. (eds.). 1981. Principios básicos sobre la selectividad de los herbicidas : Guía de estudio [en línea]. Centro Internacional…
publication
Cruzamiento del fríjol [conjunto audiotutorial]
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/54636
Abstract
This audiotutorial unit (cassette, printed script, 139 color slides, study guide, self-evaluation test), prepared by the Communications Support Unit at CIAT, is available for use with a manually or automatically synchronized slide projector/cassette tape recorder. Each unit is available from the Distribution Office at a cost of US$$50; photocopies of the study guide alone…
publication
Market access: components, interactions and implications in smallholder agriculture in the former homeland area of South Africa
https://hdl.handle.net/10568/65598
Publication year
2007
Authors
Obi, A
Pote, P
Chianu, Jonas N.
Full Citation
Obi, Ajuruchukwu; Pote, Peter; Chianu, Jonas N. 2007. Market access : Components, interactions and implications in smallholder agriculture in the former homeland area of South…
publication
Guía para la cartografía de niveles de restricción de los suelos, utilizando el sistema de información geográfica "MAP Maker Popular" y la hoja electrónica Excel
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/69619
Publication year
1999
Authors
Rodríguez, M.
Rubiano Sanabria, Yolanda
Muñoz, O.
Beaulieu, Nathalie
Full…
publication
Arroz transgénico con resistencia al virus de la hoja blanca del arroz (RHBV) en campo
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/57717
Publication year
2002
Authors
Fory Sánchez, L.F.
Tabares Z., Eddie
Lozano Potes, Iván
Mora, A.
Delgado, G.A.
Agrono, T.
Ordóñez, C.
Duque E., Myriam Cristina
Calvert, Lee A…
publication
Breeding for intercrops with special attention to beans for intercropping with maize
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/69888
Abstract
Some methodologies, including examples, for developing bean var. specifically adapted to intercropping with maize are considered. Since every breeding program has to contend with genotype x environment interactions, decisions have to be made regarding the locations for breeding nurseries, the conditions of soil fertility, and disease…
publication
Reconciling biodiversity conservation and food security: scientific challenges for a new agriculture
https://hdl.handle.net/10568/33369
Abstract
Production ecology and conservation biology have long focused on providing the knowledge base for intensive food production and biodiversity conservation, respectively. With increasing global food insecurity and continuing biodiversity decline, we show that the largely separate development of these fields is counterproductive. Scenario analyses suggest that feeding the world is possible…
publication
Alternative methods for rearing grass-feeding spittlebugs (Hemiptera: Cercopidae)
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/43166
Abstract
Two methodologies for rearing grass-feeding spittlebugs are described and were evaluated with Aeneolamia varia (Fabricius) on Brachiaria ruziziensis Germ. & Evrard. To promote biological studies, a new small-scale rearing unit was developed to maintain spittlebug life stages in the greenhouse year round. This unit features a plant…
publication
El rincón de los virus (definición, origen y sujetos de afección)
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/88836
Publication year
1996
Authors
Pineda López, Benjamín
Full Citation
Pineda López, Benjamín. 1996. El rincón de los virus (definición, origen y sujetos de afección). ASCOLFI Informa (Colombia). 22(3):43-45.
Publication Type
Journal…
publication
Simulating infertile acid soils with nutrient solutions: The effects on Brachiaria species
International Center for Tropical Agriculture (CIAT)
https://hdl.handle.net/10568/44098
Abstract
Aluminum toxicity limits plant growth in acid soils. Because of their advanced state of weathering, acid soils of the tropics also tend to be deficient in nutrients. A realistic assessment of plant adaptation to these soils would therefore require Al-toxic conditions under which growth is simultaneously limited by nutrient…
publication
Conservation tillage, local organic resources and nitrogen fertilizer combinations affect maize productivity in arid and semi-arid lands in Kenya
https://hdl.handle.net/10568/65546
Publication year
2007
Authors
Kihara, Job Maguta
Full Citation
Kihara, Job. 2007. Conservation tillage, local organic resources and nitrogen fertilizer combinations affect maize productivity in arid and semi-arid lands in Kenya [abstract] [online]. In: Bationo,…
publication
The climate of cloud forests
https://hdl.handle.net/10568/41948
Abstract
This chapter analyses the climatic conditions prevailing at sites where tropical montane cloud forests (TMCF) have been reported. Spatial data-sets of climate were used to describe the climate at 477 cloud forest sites identified by United Nations Environment Program (UNEP)-WCMC. Some 85% of the sites are found at altitudes between 400 and 2800 m a.s.l., with an average altitude of 1700 m. The range of altitudes at which cloud forests are found is extensive (220…
