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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...

En este módulo se ilustra la manera en que los tallos de yuca (material de siembra) se almacenan debajo de un árbol desde el momento de su cosecha hasta que llega el momento de su utilización para iniciar un nuevo ciclo de cultivo. Se muestra también los cangres o estacas obtenidos de cada tallo ...

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...

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. ...

Research was conducted at the Centro Internacional de Agricultura Tropical (CIAT) in 1980 in order to solve the problem of low cassava yields in Loja, Ecuador, Objectives were: (1) to determine the effect of vertical and horizontal plantings of cuttings on the emergence and competitive vigor of c...

The results of regional trials for promising cassava var. under uniform improved technology are given. Trials were conducted in Media Luna, Chigorodo, Carimagua, Rio Negro, San Martin, CIAT- Palmira, CIAT-Quilichao, and Caicedonia. In 7 of the 8 sites, var. M COL 1684, CM 342-55, and CM 489-1 out...

Se presentan los resultados de las pruebas regionales para obtener var. promisorias de yuca con tecnologia uniforme mejorada. Se realizaron evaluaciones en Media Luna, Chigorodo, Carimagua, Rio Negro, San Martin, CIAT-Palmira, CIAT-Quilichao y Caicedonia. En 7 de los 8 sitios evaluados, las var. ...

The results of regional trials for promising cassava var. under uniform improved technology are given. Trials were conducted in Media Luna, Chigorodo, Carimagua, Rio Negro, San Martin, CIAT- Palmira, CIAT-Quilichao, and Caicedonia. In 7 of the 8 sites, var. M COL 1684, CM 342-55, and CM 489-1 out...

Se presentan los resultados de las pruebas regionales para obtener var. promisorias de yuca con tecnologia uniforme mejorada. Se realizaron evaluaciones en Media Luna, Chigorodo, Carimagua, Rio Negro, San Martin, CIAT-Palmira, CIAT-Quilichao y Caicedonia. En 7 de los 8 sitios evaluados, las var. ...

Two methods of rapid propagation of promissory cassava genetic material are described in detail: by shoots on 2-node stem sections and by single leaf-bud cuttings. (CIAT)

Se describen en detalle 2 metodos de multiplicacion acelerada de material genetico promisorio de yuca: el de retonos de estacas de 2 nudos y el de esquejes de una hoja y yema. (CIAT)

Adequate resources and infrastructure for the exchange of cassava germplasm are discussed according to the type of material received (sexual seed, cuttings, and meristems). The final objective of exchanging cassava germplasm among different countries is to obtain improved var.; in order to do so,...

Se analizan los recursos y la infraestructura adecuados para el intercambio de germoplasma de yuca segun el tipo de material que se reciba (semilla sexual, estacas y meristemas). El objetivo final del intercambio de yuca entre diferentes paises es obtener var. mejoradas; para lograrlo se requiere...

Two cassava propagation techniques, proposed by CIAT, with small modifications according to the location and climatic conditions of the corresponding region of Panama, are described. The 1st method, using stem cuttings or sprouts, allows between 12,000 and 24,400 cuttings to be produced per yr, e...

Se describen 2 tecnicas de propagacion de yuca, propuestas por CIAT, con algunas modificaciones ligeras realizadas segun la ubicacion y las condiciones climaticas de la region del pais: el metodo de estacas caulinares o retonos y el metodo de esquejes de una hoja y una yema. El primer metodo perm...