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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 1979

Autor: Cock, James H. Franklin, D. Sandoval, G. Juri, P.

A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then d...

Enlace original: https://cgspace.cgiar.org/handle/10568/88470

Investigación en Agricultura
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Cock, James H. ,  Franklin, D. ,  Sandoval, G. ,  Juri, P. ,  [The ideal cassava plant for maximum yield] ,  The ideal cassava plant for maximum yield
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
Journal Article 1987

Autor: Riano, N.M. Cock, James H. López F., Y. El-Sharkawy, Mabrouk A. Bastidas, G.

Cassava, bean, and maize leaves were fed with (14)CO2 in light; the primary products of photosynthesis were identified 5 and 10 s after assimilation. In cassava, approx. 40-60 percent were incorporated in C4 acids with 30-50 percent in phosphoglyceric acid, which indicates that cassava possesses ...

Enlace original: https://cgspace.cgiar.org/handle/10568/88590

Investigación en Agricultura
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Riano, N.M. ,  Cock, James H. ,  López F., Y. ,  El-Sharkawy, Mabrouk A. ,  Bastidas, G. ,  [Caracteristicas fotosinteticas de la yuca (Manihot esculenta Crantz): Productos iniciales de fijacion con (14)CO2] ,  Caracteristicas fotosinteticas de la yuca (Manihot esculenta Crantz): Productos iniciales de fijacion con (14)CO2
Journal Article 1979

Autor: Cock, James H. Franklin, D. Sandoval, G Juri, P.

A series of trials were carried out using cassava. Crop growth rate increased with leaf area up to LAI 4; root growth rate increased up to LAI 3-3.5, then declined. LAI is determined by leaf size, leaf formation rate and individual leaf life. Leaf size reached a max 4 mo after planting and then d...

Enlace original: https://cgspace.cgiar.org/handle/10568/69945

Investigación en Agricultura
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Cock, James H. ,  Franklin, D. ,  Sandoval, G ,  Juri, P. ,  [La planta ideal de yuca para obtener rendimientos máximos] ,  La planta ideal de yuca para obtener rendimientos máximos
Journal Article 1976

Autor: Cock, James H.

Forty different cultivars of cassava were grown in unreplicated plots at a plant population of 20,000 plants/ha in fertile soil. Harvests were taken at 4, 6, 8, 10 and 12 mo after planting 18 varieties. The characteristics of the 2 highest yielding varieties, M Colombia 113 (66 tons/ha) and M Col...

Enlace original: https://cgspace.cgiar.org/handle/10568/88330

Investigación en Agricultura
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Cock, James H. ,  [Characteristics of high yielding cassava varieties] ,  Characteristics of high yielding cassava varieties

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