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Journal Article 1987

Autor: Porto, M.C.M. El-Sharkawy, Mabrouk A. Cock, James H. Hernández, A. del P. Cadena, G. de

Growth and N uptake in pot-grown maize, beans, and cassava were evaluated under 2 levels of soil N at CIAT-Palmira (Colombia). The lower amount of the element reduced its uptake by the 3 species, resulting in lower tissue concn., especially in the leaves. Under low N, DM accumulation was also red...

Enlace original: https://cgspace.cgiar.org/handle/10568/88594

Investigación en Agricultura
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Porto, M.C.M. ,  El-Sharkawy, Mabrouk A. ,  Cock, James H. ,  Hernández, A. del P. ,  Cadena, G. de ,  [Crescimento, fotossintese e eficiencia do uso de nitrogenio em milho, feijao e mandioca submetidos a dois niveis de N no solo] ,  Crescimento, fotossintese e eficiencia do uso de nitrogenio em milho, feijao e mandioca submetidos a dois niveis de N no solo
Report 1985

Autor: El-Sharkawy, Mabrouk A. Cock, James H.
Enlace original: https://cgspace.cgiar.org/handle/10568/71813

Investigación en Agricultura
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El-Sharkawy, Mabrouk A. ,  Cock, James H. ,  [The humidity factor in stomatal control and its effect on crop productivity] ,  The humidity factor in stomatal control and its effect on crop productivity
Journal Article 1995

Autor: Cadavid López, Luis Fernando Acosta, Alvaro El-Sharkawy, Mabrouk A.

Although cassava -a tropical crop- is regarded as a staple food crop for millions of people worldwide, it is still considered as a subsistence crop and seldom receives adequate crop management. Average yields are less than 8 t/ha. Colombia`s North Coast, where large areas of sandy soils are plant...

Enlace original: https://cgspace.cgiar.org/handle/10568/88804

Investigación en Agricultura
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Cadavid López, Luis Fernando ,  Acosta, Alvaro ,  El-Sharkawy, Mabrouk A. ,  [Efecto de preparación mulch y abonamiento en el cultivo de la yuca (Manihot esculenta Crantz) en suelos arenosos de Colombia] ,  Efecto de preparación mulch y abonamiento en el cultivo de la yuca (Manihot esculenta Crantz) en suelos arenosos de Colombia
Book Chapter 2012

Autor: El-Sharkawy, Mabrouk A. Mejía de Tafur, María Sara López, Yamel
Enlace original: https://cgspace.cgiar.org/handle/10568/81843

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El-Sharkawy, Mabrouk A. ,  Mejía de Tafur, María Sara ,  López, Yamel ,  [Cassava productivity, photosynthesis, ecophysiology, and response to environmental stresses in the tropics:A multidisciplinary approach to crop improvement and sustainable production] ,  Cassava productivity, photosynthesis, ecophysiology, and response to environmental stresses in the tropics:A multidisciplinary approach to crop improvement and sustainable production
Book Chapter 1991

Autor: Cock, James H. El-Sharkawy, Mabrouk A.

Different physiological characteristics of the cassava plant, which can be used as selection parameters, are reviewed, namely LAI, HI, biomass production, plants with amphistomatic leaves, and C4 photosynthesis. Experience indicates that it is better to select var. showing lower yield reduction u...

Se revisan diferentes caracteristicas fisiologicas de la planta de yuca que se pueden utilizar como parametros de seleccion: IAF, IC, produccion de biomasa, plantas con hojas amfistomatosas y fotosintesis C4. Se enfatiza que se debe tratar de seleccionar var. que presenten menor disminucion en co...

Enlace original: https://cgspace.cgiar.org/handle/10568/82089

Investigación en Agricultura
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Cock, James H. ,  El-Sharkawy, Mabrouk A. ,  [Caracteristicas fisiologicas para la seleccion de yuca] ,  Caracteristicas fisiologicas para la seleccion de yuca
Journal Article 2000

Autor: El-Sharkawy, Mabrouk A. Cadavid López, Luis Fernando

As cassava is grown mostly by small resource-limited farmers throughout the tropics on low-fertility soils with little fertilization and, due to the large potassium (K) export in harvested roots, genotypes that tolerate low-K soils and respond to K fertilization are warranted. The objective of th...

Enlace original: https://cgspace.cgiar.org/handle/10568/42909

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El-Sharkawy, Mabrouk A. ,  Cadavid López, Luis Fernando ,  [Genetic variation within cassava germplasm in response to potassium] ,  Genetic variation within cassava germplasm in response to potassium
Journal Article 1997

Autor: Pellet, D El-Sharkawy, Mabrouk A.

Four contrasting varieties of cassava (Manihot esculenta Crantz) were grown for ten months over two consecutive seasons in hillside Colombia with or without nitrogen, phosphorus and potassium fertilization. Sequential harvests were every two months. The two varieties well adapted to acid soils (C...

Enlace original: https://cgspace.cgiar.org/handle/10568/43248

Investigación en Agricultura
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Pellet, D ,  El-Sharkawy, Mabrouk A. ,  [Cassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability] ,  Cassava varietal response to fertilization: Growth dynamics and implications for cropping sustainability
Conference Paper 1995

Autor: Iglesias F., Carlos Ariel Bonierbale, Merideth W. El-Sharkawy, Mabrouk A. Lozano T., José Carlos Bellotti, Anthony C. Wheatley, Christopher C.

Cassava is an important energy-rich food for millions of people in tropical developing countries. The crop has reached that status after thousands of years of evolution under diverse agro-ecosystems, movement of germplasm within and across continents, and more recently, through scientific genetic...

Enlace original: https://cgspace.cgiar.org/handle/10568/80356

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Iglesias F., Carlos Ariel ,  Bonierbale, Merideth W. ,  El-Sharkawy, Mabrouk A. ,  Lozano T., José Carlos ,  Bellotti, Anthony C. ,  Wheatley, Christopher C. ,  [Focusing basic research for cassava varietal improvement] ,  Focusing basic research for cassava varietal improvement
Journal Article 1990

Autor: El-Sharkawy, Mabrouk A. Cock, James H.

In recent studies of cassava at CIAT, net CO2 uptake rates of 20 to 35 ?mol CO2 m?2 s?1 were commonly observed. Cassava photosynthesis has a high optimum temperature (35°C) and a wide plateau (25 to 35°C) corresponding to the temperature range under which cassava is cultivated. Leaf photosynthesi...

Enlace original: https://cgspace.cgiar.org/handle/10568/43951

Investigación en Agricultura
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El-Sharkawy, Mabrouk A. ,  Cock, James H. ,  [Photosynthesis of cassava (Manihot esculenta)] ,  Photosynthesis of cassava (Manihot esculenta)
Journal Article 2007

Autor: El-Sharkawy, Mabrouk A.

The paper summarizes research conducted at International Center for Tropical Agriculture (CIAT) on responses of cassava to extended water shortages in the field aided by modern gas-exchange and water-relation techniques as well as biochemical assays. The aim of the research was to coordinate basi...

Enlace original: https://cgspace.cgiar.org/handle/10568/43955

Investigación en Agricultura
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El-Sharkawy, Mabrouk A. ,  [Physiological characteristics of cassava tolerance to prolonged drought in the tropics : Implications for breeding cultivars adapted to seasonally dry and semiarid environments] ,  Physiological characteristics of cassava tolerance to prolonged drought in the tropics : Implications for breeding cultivars adapted to seasonally dry and semiarid environments

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