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Roca, William M.Mayer, Jorge EdgardPastor Corrales, Marcial A.Tohme, Joseph M.[International Scientific Meeting Phaseolus Beans Advanced Biotechnology Research Network (2, 1993, Cali, Colombia). Phaseolus Beans Advanced Biotechnology Research Network : Proceedings]International Scientific Meeting Phaseolus Beans Advanced Biotechnology Research Network (2, 1993, Cali, Colombia). Phaseolus Beans Advanced Biotechnology Research Network : Proceedings
Segovia, VSánchez, I.Mejía Jiménez, ARoca, William M.Lentini, Z[Micropropagación y regeneración de lulo (Solanum quitoense) por organogénesis]Micropropagación y regeneración de lulo (Solanum quitoense) por organogénesis
Escobar, R.Restrepo, J.Tohme, Joseph M.Roca, William M.[Use of tissue culture in cassava for rural households in Colombia]Use of tissue culture in cassava for rural households in Colombia

Somaclonal variation offers the possibility to obtain changes in one or a few characters of an otherwise outstanding cultivar without altering the remaining, and often unique, part of the genotype. It has been shown to be heritable for some species. A check line of Stylosanthes guianensis (Aubl.)...


Rao, Idupulapati M.Roca, William M.Ayarza, Miguel AngelTabares, EGarcía, R.[Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis]Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis
Núñez Zarantes, Víctor ManuelMartínez Racines, César PompilioNarváez Vásquez, JavierRoca, William M.[Obtención de líneas homocigotas de arroz [Oryza sativa L.] tolerantes a la toxicidad de aluminio utilizando el cultivo de anteras]Obtención de líneas homocigotas de arroz [Oryza sativa L.] tolerantes a la toxicidad de aluminio utilizando el cultivo de anteras
Roca, William M.Thro, Ann Marie[International Scientific Meeting Cassava Biotechnology Network (1, 1992, Cartagena de Indias, Colombia). Proceedings]International Scientific Meeting Cassava Biotechnology Network (1, 1992, Cartagena de Indias, Colombia). Proceedings
Roca, William M.Amézquita, María CristinaVillalobos A., V.M.[Estado actual y perspectivas de la biotecnología agrícola en América Latina y el Caribe: encuesta 1986]Estado actual y perspectivas de la biotecnología agrícola en América Latina y el Caribe: encuesta 1986
Marín, M.L.Mafla, G.Roca, William M.Withers, Lyndsey A.[Conservation of cassava (Manihot esculenta Crantz): The role of cryopreservation]Conservation of cassava (Manihot esculenta Crantz): The role of cryopreservation

The overall and specific objectives of a collaborative research project between the International Board for Plant Genetic Resources (IBPGR) and CIAT are given. The overall objective is to assess and demonstrate the technical and logistic aspects of establishing and operating a pilot in vitro acti...


Chavez, R.Roca, William M.Williams, J.T.[IBPGR-CIAT Collaborative Project on a pilot in vitro active genebank]IBPGR-CIAT Collaborative Project on a pilot in vitro active genebank

For many crops with preferential vegetative propagation, or which are sterile, or have seed unresponsive to standard seed storage techniques, in vitro methods can provide a valuable adjunct to other germplasm conservation strategies. Two types of in vitro gene banks are proposed: (i) an in vitro ...


Roca, William M.Chavez, R.Martin, M.L..Arias, D.I.Mafla, G.Reyes, Raúl[In vitro methods of germ-plasm conservation]In vitro methods of germ-plasm conservation

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