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Journal Article 1999

Autor: Roca, William M.

Se estima que la población mundial en el año 2020 será de 7.5 billones de habitantes, con más del 80% viviendo en los países en desarrollo (FAO, 1999). Aunque los datos globales sobre producción de alimentos superan el crecimiento de la población, un análisis por regiones o países (FAO, 1993) rev...

Enlace original: https://cgspace.cgiar.org/handle/10568/44250

Investigación en Agricultura
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Roca, William M. ,  [Biotecnología y seguridad alimentaria en los países en desarrollo] ,  Biotecnología y seguridad alimentaria en los países en desarrollo
Conference Paper 1995

Autor: Thro, Ann Marie Bonierbale, Merideth W. Roca, William M. Best, R. Henry, Guy

CBN is an informal forum for cassava biotechnologists, collaborating research and development specialists, and cassava research users. CBN`s research goals are genetic and processing improvements for cassava. Its development goal is to encourage interdisciplinary research in national programs of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55841

Investigación en Agricultura
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Thro, Ann Marie ,  Bonierbale, Merideth W. ,  Roca, William M. ,  Best, R. ,  Henry, Guy ,  [Why, what, who and when: an overview of the Cassava Biotechnology Network (CBN) and current cassava biotechnology research worldwide] ,  Why, what, who and when: an overview of the Cassava Biotechnology Network (CBN) and current cassava biotechnology research worldwide
Conference Paper 1995

Autor: Escobar Pérez, Roosevelt H. Mafla, G. Roca, William M.

Cassava is mostly growing by resource-limited farmers in the Americas, Africa, Asia and Oceania. The crop is an important source of food and income for millions in the tropics. Vegetative propagation, bulkiness of planting material and risk of genetic erosion make cassava an ideal target for inno...

Enlace original: https://cgspace.cgiar.org/handle/10568/55848

Investigación en Agricultura
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Escobar Pérez, Roosevelt H. ,  Mafla, G. ,  Roca, William M. ,  [Cryopreservation for long-term conservation of cassava genetic resources] ,  Cryopreservation for long-term conservation of cassava genetic resources
Conference Paper 1995

Autor: Sarria, RA Balcázar, N Destéfano Beltrán, L.J.C. Roca, William M.

To help solve breeding problems in cassava that have long eluded conventional strategies, a routine transformation protocol is esential. The agropine-mannopine nondisarmed strain of Agrobacterium tumefaciens (CIAT 1182) was selected and used with the binary vector pGV1040. This vector contains th...

Enlace original: https://cgspace.cgiar.org/handle/10568/55850

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Sarria, RA ,  Balcázar, N ,  Destéfano Beltrán, L.J.C. ,  Roca, William M. ,  [Progress in Agrobacterium-mediated transformation of cassava (Manihot esculenta Crantz)] ,  Progress in Agrobacterium-mediated transformation of cassava (Manihot esculenta Crantz)
Conference Paper 1995

Autor: Gómez, R. Angel, F. Bonierbale, Merideth W. Rodríguez, F. Tohme, Joseph M. Roca, William M.

Random amplified polymorphic DNA (RAPD) analysis was performed on three F1 populations obtained from intraspecific controlled crosses of cassava. Segregation of the RAPD fragments was analyzed to determine if these can serve as genetic markers in cassava for subsequent use in linkage analysis. Se...

Enlace original: https://cgspace.cgiar.org/handle/10568/55846

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Gómez, R. ,  Angel, F. ,  Bonierbale, Merideth W. ,  Rodríguez, F. ,  Tohme, Joseph M. ,  Roca, William M. ,  [Selecting heterozygous parents and single-dose markers for genetic mapping in cassava] ,  Selecting heterozygous parents and single-dose markers for genetic mapping in cassava
Conference Paper 1995

Autor: Henshaw, GG Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/55855

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Henshaw, GG ,  Roca, William M. ,  [Report of the working group on Manihot germplasm conservation, exchange and micropropagation] ,  Report of the working group on Manihot germplasm conservation, exchange and micropropagation
Conference Paper 1993

Autor: Sarria, RA Gómez, A. Cataño C, ML Herrera, P.V. Calderón, A. Mayer, Jorge Edgard Roca, William M.

Our strategy for Aqrobacterium-mediated cassava transformation involves the utilization of cotyledonary leaves from somatic embryos and infection with both wild and disarmed strains. Virulence tests for wild Aqrobacterium strains as well as regeneration protocols have been developed; the plasmid ...

Enlace original: https://cgspace.cgiar.org/handle/10568/55690

Investigación en Agricultura
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Sarria, RA ,  Gómez, A. ,  Cataño C, ML ,  Herrera, P.V. ,  Calderón, A. ,  Mayer, Jorge Edgard ,  Roca, William M. ,  [Towards the development of Agrobacterium tumefaciens and particle bombardment-mediated cassava transformation] ,  Towards the development of Agrobacterium tumefaciens and particle bombardment-mediated cassava transformation
Conference Paper 1993

Autor: Cataño C, ML Mornan, K Plazas, J Roca, William M.

Highly efficient systems for the isolation and in vitro culture of cassava pollen and zygotic embryos have been developed. These methodologies have allowed the manipulation of large quantities of isolated pollen from immature and mature anthers for use in studies towards haploid induction and pol...

Enlace original: https://cgspace.cgiar.org/handle/10568/55689

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Cataño C, ML ,  Mornan, K ,  Plazas, J ,  Roca, William M. ,  [Development of methodologies for the isolation and culture of cassava immature pollen and zygotic embryos] ,  Development of methodologies for the isolation and culture of cassava immature pollen and zygotic embryos
Conference Paper 1993

Autor: Mafla, G. Roca, William M. Reyes, R. Roa E, J.C. Muñoz M, L. Baca, AE Iwanaga, Masaru
Enlace original: https://cgspace.cgiar.org/handle/10568/55702

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Mafla, G. ,  Roca, William M. ,  Reyes, R. ,  Roa E, J.C. ,  Muñoz M, L. ,  Baca, AE ,  Iwanaga, Masaru ,  [In vitro management of cassava germplasm at CIAT] ,  In vitro management of cassava germplasm at CIAT

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