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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
Journal Article 1997

Autor: Cayón Gutiérrez, Manuel Gerardo El-Sharkawy, Mabrouk A. Mejía de Tafur, María Sara

The effects produced by water stress and three relative humidity (R.H) levels (3q-53%, 5461% & 62-82%) were measured on photosynthesis, stomatal conductance and transpiration rate. Stomatal opening and density were measured in stressed and non stressed plants of plantain (Dominico-Harton) and ora...

Enlace original: https://cgspace.cgiar.org/handle/10568/88858

Investigación en Agricultura
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Cayón Gutiérrez, Manuel Gerardo ,  El-Sharkawy, Mabrouk A. ,  Mejía de Tafur, María Sara ,  [Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano] ,  Efectos fisiológicos del estrés hídrico sobre varias especies vegetales. II. Naranja y plátano
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
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

Investigación en Agricultura
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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
Journal Article 2016

Autor: El-Sharkawy, Mabrouk A.
Enlace original: https://cgspace.cgiar.org/handle/10568/70961

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El-Sharkawy, Mabrouk A. ,  [Prospects of photosynthetic research for increasing agricultural productivity, with emphasis on the tropical C4 Amaranthus and the cassava C3-C4 crops] ,  Prospects of photosynthetic research for increasing agricultural productivity, with emphasis on the tropical C4 Amaranthus and the cassava C3-C4 crops
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
Journal Article 2002

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

A two-year field trial was conducted to study the effects of prolonged water stress on cassava (Manihot esculenta) productivity, and on nutrient uptake and use efficiency. Four contrasting cultivars were supplied with adequate fertilization and watering, except when water was excluded by covering...

Enlace original: https://cgspace.cgiar.org/handle/10568/44049

Investigación en Agricultura
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El-Sharkawy, Mabrouk A. ,  Cadavid López, Luis Fernando ,  [Response of cassava to prolonged water stress imposed at different stages of growth] ,  Response of cassava to prolonged water stress imposed at different stages of growth
Journal Article 1987

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

Cassava (Manihot esculenta Crantz) is a staple food for a large sector of human population in the tropics. It is widely produced for its starchy roots by small farmers over a range of environments on poor infertile soils with virtually no inputs. It is highly productive under favorable conditions...

Enlace original: https://cgspace.cgiar.org/handle/10568/44051

Investigación en Agricultura
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El-Sharkawy, Mabrouk A. ,  Cock, James H. ,  [Response of cassava to water stress] ,  Response of cassava to water stress

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