Descubre y comparte nuestro conocimiento público

Se han encontrado 14 recursos

Resultados de búsqueda

Journal Article 1998

Autor: Ceballos, H. Pandey, S. Narro Leon, LA Pérez Velásquez, Juan Carlos

Acid soils severely reduce maize (Zea mays L.) yield in the tropics. Breeding for tolerance to soil acidity provides a permanent, environmentally friendly, and inexpensive solution to the problem. This study was carried out to determine the relative importance of additive, dominant, and epistatic...

Enlace original: https://cgspace.cgiar.org/handle/10568/42549

Investigación en Agricultura
Enlace permanente
Ceballos, H. ,  Pandey, S. ,  Narro Leon, LA ,  Pérez Velásquez, Juan Carlos ,  [Additive, dominant, and epistatic effects for maize grain yield in acid and non-acid soils] ,  Additive, dominant, and epistatic effects for maize grain yield in acid and non-acid soils
Journal Article 2010

Autor: Pérez Velásquez, Juan Carlos Ceballos, H. Ramírez, I.C. Lenis, Jorge I. Calle, F Morante, N
Enlace original: https://cgspace.cgiar.org/handle/10568/42552

Investigación en Agricultura
Enlace permanente
Pérez Velásquez, Juan Carlos ,  Ceballos, H. ,  Ramírez, I.C. ,  Lenis, Jorge I. ,  Calle, F ,  Morante, N ,  [Adjustment for missing plants in cassava evaluation trials] ,  Adjustment for missing plants in cassava evaluation trials
Journal Article 2008

Autor: Pérez Velásquez, Juan Carlos Souza Junior, C.L. de Narro Leon, LA Pandey, S. León, C. de

Breeding programs for acid-soil tolerance are desirable as a relatively inexpensive and permanent way for increasing maize (Zea mays L.) yield on these soils. Our objective was to compare the genetic effects controlling the expression of maize traits in acid and non-acid soils. Seven related and ...

Enlace original: https://cgspace.cgiar.org/handle/10568/42910

Investigación en Agricultura
Enlace permanente
Pérez Velásquez, Juan Carlos ,  Souza Junior, C.L. de ,  Narro Leon, LA ,  Pandey, S. ,  León, C. de ,  [Genetics effects for maize traits in acid and non-acid soils] ,  Genetics effects for maize traits in acid and non-acid soils
Journal Article 2005

Autor: Pérez Velásquez, Juan Carlos Ceballos, H. Jaramillo, Gustavo Morante, N Calle, F Arias, B. Bellotti, Anthony C.

Little is known about the inheritance of agronomic traits in cassava (Manihot esculenta Crantz). The vegetative multiplication of cassava allows cloning of individual genotypes, and separates environmental from genetic variation in the within-family variation. Knowing the magnitude of between- an...

Enlace original: https://cgspace.cgiar.org/handle/10568/43413

Investigación en Agricultura
Enlace permanente
Pérez Velásquez, Juan Carlos ,  Ceballos, H. ,  Jaramillo, Gustavo ,  Morante, N ,  Calle, F ,  Arias, B. ,  Bellotti, Anthony C. ,  [Epistasis in cassava adapted to midaltitude valley environments] ,  Epistasis in cassava adapted to midaltitude valley environments
Journal Article 2009

Autor: Sánchez, T. Salcedo, E Ceballos, H. Dufour, D.L. Mafla, G. Morante, N Calle, F Pérez Velásquez, Juan Carlos Debouck, Daniel G. Jaramillo, Gustavo Moreno, I.X.

Cassava (Manihot esculenta Crantz) is one of the most important sources of starch in the tropics. There is limited and contradictory information regarding cassava starch characteristics. The International Center for Tropical Agriculture (CIAT) holds in trust FAO's cassava germplasm collection. St...

Enlace original: https://cgspace.cgiar.org/handle/10568/44071

Investigación en Agricultura
Enlace permanente
Sánchez, T. ,  Salcedo, E ,  Ceballos, H. ,  Dufour, D.L. ,  Mafla, G. ,  Morante, N ,  Calle, F ,  Pérez Velásquez, Juan Carlos ,  Debouck, Daniel G. ,  Jaramillo, Gustavo ,  Moreno, I.X. ,  [Screening of starch quality traits in cassava (Manihot esculenta Crantz)] ,  Screening of starch quality traits in cassava (Manihot esculenta Crantz)
Journal Article 2005

Autor: Calle, F Pérez Velásquez, Juan Carlos Gaitan, W Morante, N Ceballos, H. Llano Rodríguez, Germán Alberto Álvarez, E.

There is a limited knowledge on the inheritance of traits with agronomic relevance in cassava. A diallel study among 10 parental clones was conducted in the acid-soils environment in the eastern savannas of Colombia. Thirty clones were obtained for each F1 cross. Each clone was represented by six...

Enlace original: https://cgspace.cgiar.org/handle/10568/42737

Investigación en Agricultura
Enlace permanente
Calle, F ,  Pérez Velásquez, Juan Carlos ,  Gaitan, W ,  Morante, N ,  Ceballos, H. ,  Llano Rodríguez, Germán Alberto ,  Álvarez, E. ,  [Diallel inheritance of relevant traints in cassava (Manihot esculenta Crantz) adapted to acid-soil savannas] ,  Diallel inheritance of relevant traints in cassava (Manihot esculenta Crantz) adapted to acid-soil savannas
Journal Article 2005

Autor: Jaramillo, Gustavo Morante, N Pérez Velásquez, Juan Carlos Calle, F Ceballos, H. Arias, B. Bellotti, Anthony C.

Cassava (Manihot esculenta Crantz) is an important commodity for industrial processes in tropical countries as one of the few alternatives to compete with imported maize (Zea mays L.). To maintain this competitiveness, cassava breeding needs to be as efficient as possible. This study provides one...

Enlace original: https://cgspace.cgiar.org/handle/10568/42736

Investigación en Agricultura
Enlace permanente
Jaramillo, Gustavo ,  Morante, N ,  Pérez Velásquez, Juan Carlos ,  Calle, F ,  Ceballos, H. ,  Arias, B. ,  Bellotti, Anthony C. ,  [Diallel analysis in cassava adapted to the midaltitude valleys environment] ,  Diallel analysis in cassava adapted to the midaltitude valleys environment
Journal Article 2004

Autor: Ceballos, H. Iglesias, C.A. Pérez Velásquez, Juan Carlos Dixon, Alfred G.O.

Although cassava is a major food crop, its scientific breeding began only recently compared with other crops. Significant progress has been achieved, particularly in Asia where cassava is used mainly for industrial processes and no major biotic constraints affect its productivity. Cassava breedin...

Enlace original: https://cgspace.cgiar.org/handle/10568/43245

Investigación en Agricultura
Enlace permanente
Ceballos, H. ,  Iglesias, C.A. ,  Pérez Velásquez, Juan Carlos ,  Dixon, Alfred G.O. ,  [Cassava breeding: opportunities and challenges] ,  Cassava breeding: opportunities and challenges
Journal Article 2005

Autor: Catch, NT Pérez Velásquez, Juan Carlos Lenis, Jorge I. Calle, F Morante, N Ceballos, H.

There is limited knowledge on the inheritance of agronomic traits in cassava and the importance of epistasis for most crops. A nine-parent diallel study was conducted in subhumid environments. Thirty clones were obtained from each F1 cross. Each clone was represented by six plants, which were dis...

Enlace original: https://cgspace.cgiar.org/handle/10568/43414

Investigación en Agricultura
Enlace permanente
Catch, NT ,  Pérez Velásquez, Juan Carlos ,  Lenis, Jorge I. ,  Calle, F ,  Morante, N ,  Ceballos, H. ,  [Epistasis in the expression of relevant traits in cassava (Manihot esculenta Crantz) for subhumid conditions] ,  Epistasis in the expression of relevant traits in cassava (Manihot esculenta Crantz) for subhumid conditions
Journal Article 2009

Autor: Rojas, MC Pérez Velásquez, Juan Carlos Ceballos, H. Baena Garcia, D Morante, N Calle, F

Inbreeding offers numerous advantages but also presents some problems for the genetic improvement of cassava (Manihot esculenta Crantz). One of the concerns is that inbreeding depression (ID) may be too drastic for (even partially) inbred materials to survive. A large experiment was conducted to ...

Enlace original: https://cgspace.cgiar.org/handle/10568/43184

Investigación en Agricultura
Enlace permanente
Rojas, MC ,  Pérez Velásquez, Juan Carlos ,  Ceballos, H. ,  Baena Garcia, D ,  Morante, N ,  Calle, F ,  [Analysis of inbreeding depression in eight S1 cassava families] ,  Analysis of inbreeding depression in eight S1 cassava families

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo