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Journal Article 2006

Autor: Escobar Pérez, Roosevelt H. Hernández, C.M. Larrahondo, N Ospina, GI Restrepo M., José M. Muñoz Flórez, Ligia Carmenza Tohme, Joseph M. Roca, William M.

The lack of good quality planting material of farmers' cassava varieties, produced locally and at low cost, is a major constraint limiting the expansion of cassava production in Colombia. This article describes the adaptation of conventional cassava propagation to a low-input scheme for rural tis...

Enlace original: https://cgspace.cgiar.org/handle/10568/44190

Investigación en Agricultura
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Escobar Pérez, Roosevelt H. ,  Hernández, C.M. ,  Larrahondo, N ,  Ospina, GI ,  Restrepo M., José M. ,  Muñoz Flórez, Ligia Carmenza ,  Tohme, Joseph M. ,  Roca, William M. ,  [Tissue culture for farmers : Participatory adaptation of low-input cassava propagation in Colombia] ,  Tissue culture for farmers : Participatory adaptation of low-input cassava propagation in Colombia
Journal Article 2000

Autor: Sarria, RA Torres Castro, Edgar Alonso Angel, F. Chavarriaga Aguirre, Paul Roca, William M.

Transgenic plants of cassava (Manihot esculenta) resistant to the herbicide Basta were obtained through Agrobacterium-mediated transformation. The plants also expressed the uidA gene and two were positive for PCR- and/or Southern-based detection of the nptII gene. Somatic-embryo-derived cotyledon...

Enlace original: https://cgspace.cgiar.org/handle/10568/44199

Investigación en Agricultura
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Sarria, RA ,  Torres Castro, Edgar Alonso ,  Angel, F. ,  Chavarriaga Aguirre, Paul ,  Roca, William M. ,  [Transgenic plants of casssva (Manihot esculenta) with resistance to basta obtained by Agrobacterium-mediated transformation] ,  Transgenic plants of casssva (Manihot esculenta) with resistance to basta obtained by Agrobacterium-mediated transformation
Journal Article 2001

Autor: Fregene, Martin A. Okogbenin, Emmanuel Mba, C Angel, F. Suarez, MC Gutiérrez A., Janeth Patricia Chavarriaga Aguirre, Paul Roca, William M. Bonierbale, Merideth W. Tohme, Joseph M.

Breeding goals of yield increases, root quality improvement, and disease resistance in cassava are considerably slowed down by biological characteristics of the crop, which includes a long growth cycle, a heterozygous genetic background and a poor knowledge of the organization of crop diversity. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/42913

Investigación en Agricultura
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Fregene, Martin A. ,  Okogbenin, Emmanuel ,  Mba, C ,  Angel, F. ,  Suarez, MC ,  Gutiérrez A., Janeth Patricia ,  Chavarriaga Aguirre, Paul ,  Roca, William M. ,  Bonierbale, Merideth W. ,  Tohme, Joseph M. ,  [Genome mapping in cassava improvement: Challenges, achievements and opportunities] ,  Genome mapping in cassava improvement: Challenges, achievements and opportunities
Journal Article 1998

Autor: Thro, Ann Marie Roca, William M. Iglesias, C.A. Henry, Guy Ng, S.Y.C.

Cassava (Manihot esculenta Crantz) is a tough and productive survival crop of smallholder farmers in the tropics. It is often grown where other crops fail. Research can make important contribution to food security and economic development in cassava-growing areas. This can be enhanced through in-...

Enlace original: https://cgspace.cgiar.org/handle/10568/43305

Investigación en Agricultura
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Thro, Ann Marie ,  Roca, William M. ,  Iglesias, C.A. ,  Henry, Guy ,  Ng, S.Y.C. ,  [Contributions of in-vitro biology to cassava improvement] ,  Contributions of in-vitro biology to cassava improvement
Conference Paper 2002

Autor: Escobar Pérez, Roosevelt H. Santos Meléndez, Luis Guillermo Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65454

Investigación en Agricultura
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Escobar Pérez, Roosevelt H. ,  Santos Meléndez, Luis Guillermo ,  Tohme, Joseph M. ,  Roca, William M. ,  [Cryopreservation of FEC lines as an aid for genetic transformation programs] ,  Cryopreservation of FEC lines as an aid for genetic transformation programs
Conference Paper 2002

Autor: Ladino Franco, YJ Mancilla, LI Chavarriaga Aguirre, Paul Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65455

Investigación en Agricultura
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Ladino Franco, YJ ,  Mancilla, LI ,  Chavarriaga Aguirre, Paul ,  Tohme, Joseph M. ,  Roca, William M. ,  [Transformation of cassava cv. TMS60444 (MNig11) with A. tumefaciens carrying a cry1Ab gene for insect resistance] ,  Transformation of cassava cv. TMS60444 (MNig11) with A. tumefaciens carrying a cry1Ab gene for insect resistance
Conference Paper 2002

Autor: López, D. Chavarriaga Aguirre, Paul Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65456

Investigación en Agricultura
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López, D. ,  Chavarriaga Aguirre, Paul ,  Tohme, Joseph M. ,  Roca, William M. ,  [Induction of friable embryogenic callus and plant regeneration in Colombian commercial cultivars] ,  Induction of friable embryogenic callus and plant regeneration in Colombian commercial cultivars
Conference Paper 2002

Autor: Montoya Moreno, JE Escobar Pérez, Roosevelt H. Chavarriaga Aguirre, Paul Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65457

Investigación en Agricultura
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Montoya Moreno, JE ,  Escobar Pérez, Roosevelt H. ,  Chavarriaga Aguirre, Paul ,  Tohme, Joseph M. ,  Roca, William M. ,  [Optimizing plant regeneration from friable embryogenic callus using temporary immersion systems] ,  Optimizing plant regeneration from friable embryogenic callus using temporary immersion systems
Conference Paper 2002

Autor: Escobar Pérez, Roosevelt H. Manrique Carpintero, Norma Constanza Debouck, Daniel G. Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65452

Investigación en Agricultura
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Escobar Pérez, Roosevelt H. ,  Manrique Carpintero, Norma Constanza ,  Debouck, Daniel G. ,  Tohme, Joseph M. ,  Roca, William M. ,  [Cryopreservation of cassava shoot tips using the encapsulation-dehydration technique] ,  Cryopreservation of cassava shoot tips using the encapsulation-dehydration technique
Conference Paper 2002

Autor: Escobar Pérez, Roosevelt H. Muñoz Flórez, Ligia Carmenza Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65453

Investigación en Agricultura
Enlace permanente
Escobar Pérez, Roosevelt H. ,  Muñoz Flórez, Ligia Carmenza ,  Tohme, Joseph M. ,  Roca, William M. ,  [Rapid propagation of cassava planting material by temporary immersion bioreactors] ,  Rapid propagation of cassava planting material by temporary immersion bioreactors

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