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Cassava is a high-yielding crop, well adapted to areas of the tropics with low, uncertain rainfall and mean temperatures above 20 degrees Celsius.It has the ability to grow on very acid soils where few other crops will grow atall; however, highest yields are obtained under more fertile conditions...


Cock, James H.Rosas SC[Ecophysiology of cassava]Ecophysiology of cassava

Cock, James H.Wholey, D.W.Lozano, J.C.Toro, Julio C.[Sistema rápido de propagación de yuca]Sistema rápido de propagación de yuca

Se llevó a cabo una serie de ensayos con yuca (Manihot esculenta Crantz). La tasa de crecimiento del cultivo aumentó proporcionalmente con el índice de área foliar (IAF) hasta un IAF de 4, y la tasa de crecimiento de la raíz aumentó basta un IAF de 3 -3,5 y luego disminuyó. El IAF se determina de...


Cock, James H.Franklin, DLSandoval, GJuri, P.[La planta ideal de yuca para obtener rendimientos máximos]La planta ideal de yuca para obtener rendimientos máximos

A trend exists for using natural dried cassava as an animal feed. However, the technology of cassava drying is not well developed. The rate at which cassava dries when placed in the open air depends on the drying system, the relative humidity, the air temperature and the wind velocity. Particles ...


Roa, GCock, James H.[Natural drying of cassava]Natural drying of cassava

Analysis of previously published data shows that an extremely close correlation (r(2) = 0.83) exists between stomatal sensitivity to changes in leaf to air vapor pressure deficit and the maximum leaf conductance at low VPD in a wide range of plant species. The hypothesis is presented that stomata...


El-Sharkawy, Mabrouk A.Cock, James H.[Stomatal sensitivity to air humidity : a hypothesis for its control through peristomatal evaporation]Stomatal sensitivity to air humidity : a hypothesis for its control through peristomatal evaporation

The possibilities of underdeveloped countries to satisfy their needs for food and to improve the standard of Eving through cassava production are analyzed. The following aspects are studied: potential cassava production (current and potential situation), general research policies and areas (var. ...


Cock, James H.Lynam, John K.[Cassava: future potential and development needs]Cassava: future potential and development needs
Leihner, D.E.Cock, James H.[Pautas para la producción y selección de material reproductivo de yuca]Pautas para la producción y selección de material reproductivo de yuca

The possibilities of underdeveloped countries to satisfy their needs for food and to improve the standard of Eving through cassava production are analyzed. The following aspects are studied: potential cassava production (current and potential situation), general research policies and areas (var. ...

Se analizan las posibilidades de los paises subdesarrollados para satisfacer sus necesidades de alimentacion y mejorar el nivel de vida con base en la produccion de yuca. Se contemplan los siguientes aspectos: produccion potencial de la yuca (situacion actual y potencial), politica general de la ...


Cock, James H.Lynam, John K.[Potencial futuro e investigacion necesaria para el incremento de la yuca]Potencial futuro e investigacion necesaria para el incremento de la yuca

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)


Toro, Julio C.Roca, W.Cock, James H.[Metodos de multiplicacion acelerada de material genetico promisorio de yuca Manihot esculenta Crantz]Metodos de multiplicacion acelerada de material genetico promisorio de yuca Manihot esculenta Crantz

Multiple cropping, sequential cropping, intercropping, mixed intercropping, intercropping in rows, in strips, relayed intercropping, cropping patterns, monoculture, crop rotation and land equivalent ratio are defined. The characteristics of multiple cropping and intercropping with beans are discu...

Se definen: cultivo multiple, en secuencia, intercalado, intercalado mixto, intercalado en surcos, intercalado en bandas o fajas, intercalado de relevo, patron de cultivo, monocultivo, rotacion de cultivos y relacion equivalente de terreno. Se describen en detalle las caracteristicas de los culti...


Thung, M.Cock, James H.[La yuca como cultivo principal de un sistema de cultivo multiple]La yuca como cultivo principal de un sistema de cultivo multiple

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