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Information is presented on 2 cassava var., ICA-Catumare and ICA-Cebucan, released by the Instituto Colombiano Agropecuario and CIAT, for the Colombian Llanos Orientales. ICA-Catumare originates from the cross between regional var. Guajiba and CMC-86. ICA- Cebucan originates from the cross betwee...


Rodríguez H, N.S.Hershey, Clair H.[Dos nuevas variedades de yuca de alta produccion para los Llanos Orientales]Dos nuevas variedades de yuca de alta produccion para los Llanos Orientales

A detailed socio-economic description is given of this rustic farm community on the Atlantic Coast of Colombia. Where cassava is the main source of income. Av temp is 28 degrees Celsius, annual rainfall 1556 mm; the sandy soils (pH 5.5-6) have less than 1 percent OM, less than 15 ppm P and less t...


Díaz Duque, R.O.[El cultivo de la yuca en La Colorada, Media Luna]El cultivo de la yuca en La Colorada, Media Luna

The criteria for technology design are as follows: suitable for areas presently marginal for agricultural production; low inputs; give a nonperishable product for transportation; simple to transfer and easy to manage, requiring minimal changes in the traditional systein, Some problems that are be...


Cock, James H.[Criteria for design of a new technology]Criteria for design of a new technology

The reasons an integrated pest and disease control in cassava is justified are analyzed. Some cultural practices are listed that would lessen the problems caused by negative production factors within an ecosystem and would give high stable yields. Recommendations are given to maintain and enrich ...


Lozano, J.C.Bellotti, Anthony C.[Integrated control of diseases and pest of cassava (Manihot esculenta Crantz)]Integrated control of diseases and pest of cassava (Manihot esculenta Crantz)

CIAT activities in developing biotechnology applications to cassava in the last decade are described. The strategies to identify research topics and implement in house capabilities and an international cooperative effort in cassava biotechnology are emphasized. Successful integration of selected ...


Roca, William M.Henry, GuyAngel, F.Sarria, R[Biotechnology research applied to cassava improvement at the International Center of Tropical Agriculture (CIAT)]Biotechnology research applied to cassava improvement at the International Center of Tropical Agriculture (CIAT)

About 150 pests of cassava are cited. About 110 are insects and the rest are nematodes (38), arachnids (3) and chilopods (1). Insects are listed by orders; the stage causing damage, type of damage, and distribution are listed as well. (CIAT)


International Center for Tropical Agriculture[Pests of cassava in the world]Pests of cassava in the world

The process of identifying the "relevant constraints" and their incidence on breeding programs and agricultural research of international centers are explained and case histories are provided on the role of these 3 types of information (macro stage, micro stage, critical inference stage) related ...


Sanders, J.H.Lynam, John K.[Systems of production of beans and cassava in Latin America with implications for research design]Systems of production of beans and cassava in Latin America with implications for research design

A new disease of cassava has been found inducing epidemics in several cassava-growing areas of Colombia during the rainy season. The disease can be recognized by a characteristic exaggerated elongation of the internodes of young stems of infected plants and by the distortion and deformation of th...


Lozano, J.C.Booth, RH[The superelongation disease of cassava]The superelongation disease of cassava
Autor: Lynam, JL

The role of on-farm testing in the development of new cassava technology at the Centro Internacional de Agricultura Tropical (CIAT) is described in detail. On farm cassava trials have established a link between the research program and farms in the 1st stages of technology development. These tria...


Lynam, JL[A farming system analysis of improved cassava technology]A farming system analysis of improved cassava technology

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