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Using the infra-red gas analysis system, the rate of CO2 uptake, transpiration, leaf conductance and water use efficiency were determined on attached leaves of cassava cv. MCol 1522 and CG 403-18, which were grown in pots left outdoors. In the stress treatment, the water was withheld from the fou...


Guzmán R., G.El-Sharkawy, Mabrouk A.[Efecto de la disponibilidad hidrica del suelo sobre la anatomia foliar y el intercambio gaseoso de dos cultivares de yuca (Manihot esculenta Crantz)]Efecto de la disponibilidad hidrica del suelo sobre la anatomia foliar y el intercambio gaseoso de dos cultivares de yuca (Manihot esculenta Crantz)

The overall and specific objectives of a collaborative research project between the International Board for Plant Genetic Resources (IBPGR) and CIAT are given. The overall objective is to assess and demonstrate the technical and logistic aspects of establishing and operating a pilot in vitro acti...


Chavez, R.Roca, William M.Williams, J.T.[IBPGR-CIAT Collaborative Project on a pilot in vitro active genebank]IBPGR-CIAT Collaborative Project on a pilot in vitro active genebank
Autor: Reeves, J.

The importance of cassava, particularly in animal nutrition, is briefly discussed. The adaptability of cassava to infertile soils and low inputs, its production of more calories per land and labor unit than any other food crop, and its resistance to pests and diseases are highlighted. CIAT`s obje...


Reeves, J.[La yuca para alimentacion animal]La yuca para alimentacion animal

For many crops with preferential vegetative propagation, or which are sterile, or have seed unresponsive to standard seed storage techniques, in vitro methods can provide a valuable adjunct to other germplasm conservation strategies. Two types of in vitro gene banks are proposed: (i) an in vitro ...


Roca, William M.Chavez, R.Martin, M.L..Arias, D.I.Mafla, G.Reyes, Raúl[In vitro methods of germ-plasm conservation]In vitro methods of germ-plasm conservation
Autor: Romanoff, S

Basic information on how to train promoters is given as well as a series of procedures needed to successfully establish and develop new associations of cassava processors and promoters. Based on the experience acquired during the organization of the first associations in Manabi Province, Ecuador,...


Romanoff, S[Manual de referencia para la promocion de asociaciones de promotores y procesadores de yuca]Manual de referencia para la promocion de asociaciones de promotores y procesadores de yuca

An in-depth analysis is made of objectives and constraints in cassava development in Latin America. Integrated cassava development projects aim at promoting the organizational intervention by which small-scale cassava farmers are linked to high growth markets. The 6 main activities involved in th...


Lynam, John K.Janssen, W.[Methodology development for the planning and evaluation of integrated cassava development projects]Methodology development for the planning and evaluation of integrated cassava development projects

General information is presented on cassava cultivation in Colombia, trends in fresh cassava consumption, and fresh cassava conservation technology. The general objectives of creating markets for cassava packed in bags are also defined on the basis of the Barranquillan experience. The marketing a...


Ostertag Gálvez, Carlos F.[Metodologia para la creacion de mercados para yuca en bolsa con ejemplos de Barranquilla, Colombia]Metodologia para la creacion de mercados para yuca en bolsa con ejemplos de Barranquilla, Colombia

The materials and lab. procedures to differentiate and extract toxic aflatoxins produced by Aspergillus flavus and the nontoxic phenolic compound scopoletin in fresh and processed cassava roots are presented. (CIAT)


Wheatley, Christopher C.Laberry, R.A.[Metodo para diferenciar la presencia de aflatoxinas con la de escopoletina en raices frescas procesadas de yuca]Metodo para diferenciar la presencia de aflatoxinas con la de escopoletina en raices frescas procesadas de yuca

A method of rooting shoot tips is described, whereby plants free from cassava bacterial blight were produced. The use of this method, in addition to cultural practices, is proposed for producing pathogen-free foundation stock for a planting material certification program. (AS)


Lozano, J.C.Wholey, W[A technique for the production of bacteria-free planting stock of cassava (Manihot esculenta Crantz)]A technique for the production of bacteria-free planting stock of cassava (Manihot esculenta Crantz)

In view of the lack of information on the use of herbicides in polycultures including non-commercial crop species, 2 expt. were designed to identify herbicides and doses suitable for crop associations including cassava. A total of 6 products were tested single or in mixtures having been chosen fo...


López M., J.Leihner, D.E.[Control quimico de malezas en policultivos con yuca (Manihot esculenta Crantz)]Control quimico de malezas en policultivos con yuca (Manihot esculenta Crantz)

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