Information is presented on 2 cassava var., ICA-Catumare and ICA-Cebucan, released by the Instituto Colombiano Agropecuario and CIAT, for the Colombian Llanos Orientales. ICA-Catumare originates from the cross between regional var. Guajiba and CMC-86. ICA- Cebucan originates from the cross betwee...
Rodríguez H, N.S.
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Hershey, Clair H.
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[Dos nuevas variedades de yuca de alta produccion para los Llanos Orientales]
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Dos nuevas variedades de yuca de alta produccion para los Llanos Orientales
Patiño Rodríguez, VM
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Hershey, Clair H.
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[Collection priorities for cassava (Manihot esculenta) and wild Manihot species in Latin America]
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Collection priorities for cassava (Manihot esculenta) and wild Manihot species in Latin America
A summary is made of the information available on cassava genetics, cytogenetics, flowering habits, flower structure, hybridization techniques, seed storage and germination. (CIAT)
Se resume la informacion disponible acerca de la genetica, citogenetica, habito de floracion, estructura de la flor, tecnica de hibridacion, almacenamiento y germinacion de la semilla de la yuca. (CIAT)
Hershey, Clair H.
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Amaya, A.
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[Genética, citogenética, estructura floral y técnicas de hibridación de la yuca]
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Genética, citogenética, estructura floral y técnicas de hibridación de la yuca
The importance of appropriate genetic variability for plant breeding work in cassava is highlighted; genetic erosion has been slight and therefore efforts should be made to collect and maintain germplasm of both cultivated and wild species. It is necessary to carry out physiological studies aimin...
Se enfatiza la importancia de una variabilidad genetica apropiada para trabajos de fitomejoramiento en yuca; se piensa que la erosion genetica ha sido poca y, por tanto, se deben hacer esfuerzos de recolectar y mantener germoplasma de tanto especies cultivadas como silvestres. Es necesario realiz...
Hershey, Clair H.
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[Observaciones generales sobre la ejecucion de programas de mejoramiento genetico de la yuca en America Latina]
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Observaciones generales sobre la ejecucion de programas de mejoramiento genetico de la yuca en America Latina
Several important areas in which plant breeders must make decisions are outlined; the factors affecting decision-making in given situations are also analyzed. Three aspects that markedly influence the general structure of a cassava breeding program are discussed in detail, namely (1) definition o...
Se esbozan algunas de las principales areas en las que un fitomejorador debe tomar decisiones, y algunos de los factores que afectan tales decisiones en una situacion dada. Se trataran de manera especial 3 aspectos que tienen una influencia marcada en la estructura general de un programa de mejor...
Hershey, Clair H.
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[Consideraciones para el diseno de un programa de mejoramiento de yuca]
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Consideraciones para el diseno de un programa de mejoramiento de yuca
Five new marker genes in cassava are described; they control the following traits: chlorophyll production in seedlings, stem growth habit, stem collenchyma color, root parenchyma color, and leaf lobe shape (pandurate vs. normal). Names were proposed for each loci and dominant and recessive phenot...
Cassava breeders and scientists in related fields from the 3 major cassava-producing continents (America, Africa, and Asia) were brought together for the lst time to discuss the latest advances in cassava breeding research and exchange ideas on future priorities. Most breeding programs now orient...
Hershey, Clair H.
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[Cassava breeding: A multidisciplinary review: Proceedings of a workshop, held in the Philippines, 4-7, March 1985]
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Cassava breeding: A multidisciplinary review: Proceedings of a workshop, held in the Philippines, 4-7, March 1985
Iglesias, C.A.
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Hershey, Clair H.
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[True cassava seed: Research for a production alternative]
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True cassava seed: Research for a production alternative