Búsqueda - Portal Conocimiento Público CL

Resultados de búsqueda

Journal Article 2006

Tissue culture for farmers : Participatory adaptation of low-input cassava propagation in Colombia

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

MANIHOT ESCULENTA

PLANT PROPAGATION

VITROPLANTS

Citar Enlace permanente

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

Transgenic plants of casssva (Manihot esculenta) with resistance to basta obtained by Agrobacterium-mediated transformation

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

MANIHOT ESCULENTA

TRANSGENIC PLANTS

AGROBACTERIUM

Citar Enlace permanente

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 1998

Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT

Autor: Martínez Racines, César Pompilio Tohme, Joseph M. López Gerena, J. Borrero Correa, Jaime C. McCouch, Susan R. Roca, William M. Chatel, M Guimaraes, Elcio Perpétuo

Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT. Este trabajo presenta el uso de especies silvestres de arroz en la obtención de germoplasma mejorado con mayor potencial de rendimiento y una base genética ampliada. Tres especies silvestres ...

Enlace original: https://cgspace.cgiar.org/handle/10568/44304

Investigación en Agricultura

ORYZA SATIVA

ORYZA

PLANT BREEDING

Citar Enlace permanente

Martínez Racines, César Pompilio , Tohme, Joseph M. , López Gerena, J. , Borrero Correa, Jaime C. , McCouch, Susan R. , Roca, William M. , Chatel, M , Guimaraes, Elcio Perpétuo , [Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT] , Estado actual del mejoramiento del arroz mediante la utilización de especies silvestres de arroz en CIAT

Journal Article 1995

Construcción de una genoteca de cDNA de fríjol (Phaseolus vulgaris L.) para mapeo genético

Autor: Ramírez, H. Mayer, Jorge Edgard Roca, William M. Tohme, Joseph M. López, Y.

Se construyó una pequeña librería de cDNA de fríjol (phaseolus vulgaris L.) de alrededor de 1500 clones, con el fin de incrementar la saturación del mapa de ligamiento de fríjol con marcadores de RFLPs. Para la generación de la librería se utilizó la técnica de amplificación por PCR (Jepson et al...

Enlace original: https://cgspace.cgiar.org/handle/10568/44264

Investigación en Agricultura

PHASEOLUS VULGARIS

MESSENGER RNA

DNA

Citar Enlace permanente

Ramírez, H. , Mayer, Jorge Edgard , Roca, William M. , Tohme, Joseph M. , López, Y. , [Construcción de una genoteca de cDNA de fríjol (Phaseolus vulgaris L.) para mapeo genético] , Construcción de una genoteca de cDNA de fríjol (Phaseolus vulgaris L.) para mapeo genético

Journal Article 1998

Genetic variation analysis of the genus Passiflora L. using RAPD markers

Autor: Fajardo, Diego Angel, F. Grum, M. Tohme, Joseph M. Lobo Arias, M Roca, William M. Sánchez, I.

Genetic analysis based on Random Amplified Polymorphic DNA (RAPD) was carried out on 52 accessions representing 14 species of the genus Passiflora L. using 50 random 10-mer primers. A dendrogram constructed using the Dice similarity coefficient and the UPGMA algorithm based on 626 reproducible po...

Enlace original: https://cgspace.cgiar.org/handle/10568/42908

Investigación en Agricultura

PASSIFLORA

GENETIC VARIATION

GENETIC MARKERS

Citar Enlace permanente

Fajardo, Diego , Angel, F. , Grum, M. , Tohme, Joseph M. , Lobo Arias, M , Roca, William M. , Sánchez, I. , [Genetic variation analysis of the genus Passiflora L. using RAPD markers] , Genetic variation analysis of the genus Passiflora L. using RAPD markers

Journal Article 2001

Genome mapping in cassava improvement: Challenges, achievements and opportunities

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

MANIHOT ESCULENTA

GENOMES

GENETIC MAPS

Citar Enlace permanente

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 1989

Identification of cultivars of the forage legume Pueraria phaseoloides by electrophoretic patterns of storage proteins

Autor: Hussain, A. Bushuk, W Roca, William M.

A polyacrylamide gel electrophoresis procedure was developed for discriminating cultivars of the forage legume Pueraria phaseoloides on the basis of the patterns of cotyledon proteins. The genotypic marker proteins were extracted with 5M acetic acid and electrophoresed at pH 3.1 in aluminum lacta...

Enlace original: https://cgspace.cgiar.org/handle/10568/42948

Investigación en Agricultura

PUERARIA PHASEOLOIDES

VARIEDADES

IDENTIFICACION

Citar Enlace permanente

Hussain, A. , Bushuk, W , Roca, William M. , [Identification of cultivars of the forage legume Pueraria phaseoloides by electrophoretic patterns of storage proteins] , Identification of cultivars of the forage legume Pueraria phaseoloides by electrophoretic patterns of storage proteins

Journal Article 1998

Contributions of in-vitro biology to cassava improvement

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

MANIHOT ESCULENTA

CRYOPRESERVATION

MICROPROPAGATION

Citar Enlace permanente

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

Journal Article 2004

Introgression in common bean x tepary bean interspecific congruity-backcross line as measured by AFLP markers

Autor: Muñoz Flórez, Ligia Carmenza Blair, Matthew W. Duque E., Myriam Cristina Tohme, Joseph M. Roca, William M.

Congruity and recurrent backcross interspecific hybrids between common bean (Phaseolus vulgaris L.) and tepary bean (P. acutifolius A. Gray) were compared for the amount of introgression occurring between genomes by amplified fragment length polymorphism (AFLP) markers. A total of 60 genotypes we...

Enlace original: https://cgspace.cgiar.org/handle/10568/43608

Investigación en Agricultura

PHASEOLUS VULGARIS

PHASEOLUS ACUTIFOLIUS

GENOTYPES

Citar Enlace permanente

Muñoz Flórez, Ligia Carmenza , Blair, Matthew W. , Duque E., Myriam Cristina , Tohme, Joseph M. , Roca, William M. , [Introgression in common bean x tepary bean interspecific congruity-backcross line as measured by AFLP markers] , Introgression in common bean x tepary bean interspecific congruity-backcross line as measured by AFLP markers

Journal Article 1999

Biotecnología y seguridad alimentaria en los países en desarrollo

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

BIOTECHNOLOGY

FOOD SECURITY

DEVELOPING COUNTRIES

Citar Enlace permanente

Roca, William M. , [Biotecnología y seguridad alimentaria en los países en desarrollo] , Biotecnología y seguridad alimentaria en los países en desarrollo

Descubre y comparte nuestro conocimiento público

Resultados de búsqueda