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Report 1979

Autor: International Center for Tropical Agriculture

In Mondomo, state of Cauca (Colombia), a socioeconomic survey was made of the 7 famers in the area that participated in the program of demonstration plots. In general terms the educational level is varied, the majority (6) are full-time farmers who have lived in the area greater than 10 yr and ha...

Enlace original: https://cgspace.cgiar.org/handle/10568/71797

Investigación en Agricultura
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International Center for Tropical Agriculture ,  [Informe sobre siembra y evaluacion de germinacion de las parcelas sembradas en Mondomo (Cauca) en mayo de 1979 por el Programa de Economia de Yuca : Proyecto conjunto de ensayo y validacion de tecnologia (CIAT-ICA)] ,  Informe sobre siembra y evaluacion de germinacion de las parcelas sembradas en Mondomo (Cauca) en mayo de 1979 por el Programa de Economia de Yuca : Proyecto conjunto de ensayo y validacion de tecnologia (CIAT-ICA)
Report 1982

Autor: Hershey, Clair H.

Several physical and biological factors that limit cassava productivity are described: temp. and photoperiod, soil water availability, RH, soil characteristics (fertility and pH), and pests and diseases. Six edapho--climatic zones (ECZ) for cassava production are defined on the basis of temp.: lo...

Enlace original: https://cgspace.cgiar.org/handle/10568/71804

Investigación en Agricultura
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Hershey, Clair H. ,  [Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia] ,  Mejoramiento de la yuca para adaptacion en condiciones de estres : desarrollo de una metodologia
Report 1981

Autor: Bellotti, Anthony C.

The management of a sudden high population of the cassava hornworm (Erinnyis ello) is discussed on the basis of data referring to those occurring in Santander de Quilichao in May 1980, in plantations at the exptl. station at the Centro lnternacional de Agricultura Tropical (CIAT), and in a neighb...

Enlace original: https://cgspace.cgiar.org/handle/10568/71798

Investigación en Agricultura
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Bellotti, Anthony C. ,  [Manejo de una explosion del gusano cachon Erinnyis ello (L) (Lepidoptera: Sphingidae)] ,  Manejo de una explosion del gusano cachon Erinnyis ello (L) (Lepidoptera: Sphingidae)
Report 1980

Autor: Roca, William M.

Plant tissue culture includes a wide range of techniques: protoplast, cell, anther, callus, meristem and organ culture, all having one common factor: the growth of vegetative material in an aseptic environment; i,e., the sterilized culture medium in test tubes. In spite of the fact that several o...

Enlace original: https://cgspace.cgiar.org/handle/10568/71800

Investigación en Agricultura
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Roca, William M. ,  [Cultivo de tejidos en yuca] ,  Cultivo de tejidos en yuca
Report 1983

Autor: Bellotti, Anthony C. Reyes, J.A. Varela, Ana M. Castillo, J.

Cassava mealybugs constitute one of the major production problems of cassava in Africa and the Americas. The species already identified that attack cassava in the Americas include Phenacoccus manihoti, P. herreni, P. gossypii, and P. grenadensis. Since its introduction into Africa, P. manihoti ha...

Enlace original: https://cgspace.cgiar.org/handle/10568/71805

Investigación en Agricultura
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Bellotti, Anthony C. ,  Reyes, J.A. ,  Varela, Ana M. ,  Castillo, J. ,  [El piojo harinoso (Phenacoccus sp.) de la yuca; una de las plagas agricolas mas importantes en el mundo] ,  El piojo harinoso (Phenacoccus sp.) de la yuca; una de las plagas agricolas mas importantes en el mundo
Report 1981

Autor: Roca, William M.

Methods of vegetative reproduction are discussed using the results obtained with cassava and potato. Results of clone cleaning by heat therapy and in vitro meristem culture are given. Two methods for rapid cassava multiplication are proposed: by sprouts from cuttings and single leaf cuttings, whi...

Enlace original: https://cgspace.cgiar.org/handle/10568/71822

Investigación en Agricultura
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Roca, William M. ,  [Reproduccion vegetativa de materiales para la siembra libres de enfermedades] ,  Reproduccion vegetativa de materiales para la siembra libres de enfermedades
Report 1987

Autor: Lozano, J.C.

Research results obtained during 1975-87 on the biocontrol of cassava pathogens are summarized with emphasis on the use of fluorescent pseudomonads as biocontrol agents in different cassava production systems. Evidence of biocontrol of Uromyces spp. by the mycoparasite Darluca filum is reviewed. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/71838

Investigación en Agricultura
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Lozano, J.C. ,  [Biocontrol of cassava pathogens: A useful approach] ,  Biocontrol of cassava pathogens: A useful approach
Report 1978

Autor: Bellotti, Anthony C.

A program of biological control of the cassava hornworm appears feasible. The following biological control agents have been found to reduce hornworm populations effectively: Trichogramma spp. (egg parasites), Apanteles spp. (larval parasites), Polistes spp. (larval predators) and Bacillus thuring...

Enlace original: https://cgspace.cgiar.org/handle/10568/71791

Investigación en Agricultura
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Bellotti, Anthony C. ,  [Control biologico del gusano cachon (Erinnyis ello)] ,  Control biologico del gusano cachon (Erinnyis ello)
Report 1977

Autor: Amézquita de Quinones, M.C.

Part of the methodology of the analysis applied to the project of the hornworm (Erinnyis ello) on cassava is presented. The project studies the hornworm life cycle and population dynamics and the economic impact on cassava production under 2 conditions (1) in cages with controlled ideal condition...

Enlace original: https://cgspace.cgiar.org/handle/10568/71785

Investigación en Agricultura
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Amézquita de Quinones, M.C. ,  [Metodologia parcial de analisis proyecto "desarrollo del gusano cachon en la yuca"] ,  Metodologia parcial de analisis proyecto "desarrollo del gusano cachon en la yuca"
Report 1978

Autor: Riedel, RM

A survey was conducted on 205 soil samples collected from 12 sites in Colombia of different crops, including beans on which the research was mainly focussed (132 soil samples from 10 sites), in order to characterize problems of nematodes in the different regions, make comparisons, and suggest res...

Enlace original: https://cgspace.cgiar.org/handle/10568/71825

Investigación en Agricultura
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Riedel, RM ,  [Final report. Nematode survey] ,  Final report. Nematode survey

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