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Journal Article 1995

Autor: Welsh, W Bushuk, W Roca, William M. Singh, Shree P.

The value of intra- and interracial populations in common bean (Phaseolus vulgaris L.) needs to be determined in order to create useful genetic variation for maximizing gains from selection, broadening the genetic base of commercial cultivars, and making efficient use of available resources. Five...

Enlace original: https://cgspace.cgiar.org/handle/10568/43256

Investigación en Agricultura
Enlace permanente
Welsh, W ,  Bushuk, W ,  Roca, William M. ,  Singh, Shree P. ,  [Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.] ,  Characterization of agronomic traits and markers of recombinant inbred lines from intra-and interracial populations of Phaseolus vulgaris L.
Journal Article 2008

Autor: González Amao, M.T. Panta, A. Roca, William M. Escobar Pérez, Roosevelt H. Engelmann, F.

Shoot-tips and somatic embryos are the explants of choice for the in vitro long-term storage of ex situ plant genetic resources in liquid nitrogen. Cryopreservation of organized structures has significantly progressed, especially for species of tropical origin, with the development of several vit...

Enlace original: https://cgspace.cgiar.org/handle/10568/43329

Investigación en Agricultura
Enlace permanente
González Amao, M.T. ,  Panta, A. ,  Roca, William M. ,  Escobar Pérez, Roosevelt H. ,  Engelmann, F. ,  [Development and large scale application of cryopreservation techniques for shoot and somatic embryo cultures of tropical crops] ,  Development and large scale application of cryopreservation techniques for shoot and somatic embryo cultures of tropical crops
Journal Article 2000

Autor: Chavez, Alba L. Bedoya Flores, JM Sánchez, T. Iglesias, C.A. Ceballos, H. Roca, William M.

The cassava core collection (601 genotypes) was evaluated for root and leaf contents of micronutrient minerals, ascorbic acid, and carotene. Wide genetic variability was observed for all measurements, indicating that there is good potential for exploiting and improving the nutritive value of cass...

Enlace original: https://cgspace.cgiar.org/handle/10568/43016

Investigación en Agricultura
Enlace permanente
Chavez, Alba L. ,  Bedoya Flores, JM ,  Sánchez, T. ,  Iglesias, C.A. ,  Ceballos, H. ,  Roca, William M. ,  [Iron, carotene, and ascorbic acid in cassava roots and leaves] ,  Iron, carotene, and ascorbic acid in cassava roots and leaves
Journal Article 1996

Autor: Angel, F. Barney, Victoria E. Tohme, Joseph M. Roca, William M.

Cassava (Manihot esculenta Crantz) germplasm collections are conventionally maintained by continuous vegetative propagation in the field. Tissue culture techniques provide a more convenient way to conserve germplasm. The cassava in vitro gene bank held in trust at CIAT comprises nearly 6000 acces...

Enlace original: https://cgspace.cgiar.org/handle/10568/44129

Investigación en Agricultura
Enlace permanente
Angel, F. ,  Barney, Victoria E. ,  Tohme, Joseph M. ,  Roca, William M. ,  [Stability of cassava plants at the DNA level after retrieval from 10 years of in vitro storage] ,  Stability of cassava plants at the DNA level after retrieval from 10 years of in vitro storage
Poster 2012

Autor: Fory Sánchez, L.F. Pérez, J.G. Duque, S. Calle, F Morante, N Bolaños, E. Herrera, P. Duque, M. Ceballos, H. Roca, William M. Gallego Sánchez, Gerardo J. Tohme, Joseph M.
Enlace original: https://cgspace.cgiar.org/handle/10568/58250

Investigación en Agricultura
Enlace permanente

Fory Sánchez, L.F. ,  Pérez, J.G. ,  Duque, S. ,  Calle, F ,  Morante, N ,  Bolaños, E. ,  Herrera, P. ,  Duque, M. ,  Ceballos, H. ,  Roca, William M. ,  Gallego Sánchez, Gerardo J. ,  Tohme, Joseph M. ,  [Linea base para la toma de decisiones en bioseguridad: desarrollo de un modelo para la evaluación de flujo de genes en yuca utilizando una linea androesteril (Manihot esculenta Crantz)] ,  Linea base para la toma de decisiones en bioseguridad: desarrollo de un modelo para la evaluación de flujo de genes en yuca utilizando una linea androesteril (Manihot esculenta Crantz)
Journal Article 2016-08-12

Autor: Chavarriaga Aguirre, Paul Brand, Alejandro Medina, Adriana Prías, Mónica Escobar Pérez, Roosevelt H. Martínez, Juan Díaz, Paula López Carrascal, Camilo Ernesto Roca, William M. Tohme, Joseph M.

The importance of cassava as the fourth largest source of calories in the world requires that contributions of biotechnology to improving this crop, advances and current challenges, be periodically reviewed. Plant biotechnology offers a wide range of opportunities that can help cassava become a b...

Enlace original: https://cgspace.cgiar.org/handle/10568/76548

Investigación en Agricultura
Enlace permanente
Chavarriaga Aguirre, Paul ,  Brand, Alejandro ,  Medina, Adriana ,  Prías, Mónica ,  Escobar Pérez, Roosevelt H. ,  Martínez, Juan ,  Díaz, Paula ,  López Carrascal, Camilo Ernesto ,  Roca, William M. ,  Tohme, Joseph M. ,  [The potential of using biotechnology to improve cassava: a review] ,  The potential of using biotechnology to improve cassava: a review
Journal Article 1992

Autor: Hoyos, R.A. Roca, William M. Hosfield, GL Mayer, Jorge Edgard
Enlace original: https://cgspace.cgiar.org/handle/10568/65759

Investigación en Agricultura
DNA
Enlace permanente
Hoyos, R.A. ,  Roca, William M. ,  Hosfield, GL ,  Mayer, Jorge Edgard ,  [Particle gun transient expression of sexual embryos of common bean] ,  Particle gun transient expression of sexual embryos of common bean
Conference Paper 2002

Autor: Escobar Pérez, Roosevelt H. Hernández, C.M. Restrepo M., José M. Ospina, GI Tohme, Joseph M. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65432

Investigación en Agricultura
Enlace permanente
Escobar Pérez, Roosevelt H. ,  Hernández, C.M. ,  Restrepo M., José M. ,  Ospina, GI ,  Tohme, Joseph M. ,  Roca, William M. ,  [Involvement of farmers in the development of cassava low-cost input, invitro propagation methods] ,  Involvement of farmers in the development of cassava low-cost input, invitro propagation methods
Journal Article 1997

Autor: Singh, Shree P. Debouck, Daniel G. Roca, William M.
Enlace original: https://cgspace.cgiar.org/handle/10568/65772

Investigación en Agricultura
Enlace permanente
Singh, Shree P. ,  Debouck, Daniel G. ,  Roca, William M. ,  [Successful interspecific hybridization between Phaseolus vulgaris L. and P. costaricensis Freytag & Debouck] ,  Successful interspecific hybridization between Phaseolus vulgaris L. and P. costaricensis Freytag & Debouck

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