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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...


Ceballos, H.Pandey, S.Narro Leon, LAPérez 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
Pérez Velásquez, Juan CarlosCeballos, H.Ramírez, I.C.Lenis, Jorge I.Calle, FMorante, N[Adjustment for missing plants in cassava evaluation trials]Adjustment for missing plants in cassava evaluation trials

Fory Sánchez, L.F.Velásquez, A.M.Nagles, CJarvis, AndyCalle, FLenis, Jorge I.Pérez Velásquez, Juan CarlosCeballos, H.[Linea de base para la toma de desiciones en bioseguridad: desarrollo de un modelo para la evaluación de flujo de genes en yuca III. Persistencia de plantas voluntarias en campos del agricultor de yuca (Manihot esculenta Crantz)]Linea de base para la toma de desiciones en bioseguridad: desarrollo de un modelo para la evaluación de flujo de genes en yuca III. Persistencia de plantas voluntarias en campos del agricultor de yuca (Manihot esculenta Crantz)

Ceballos, H.Morante, NCalle, FLenis, Jorge I.Jaramillo O, GPérez Velásquez, Juan Carlos[Mejoramiento genético de la yuca]Mejoramiento genético de la yuca

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 ...


Pérez Velásquez, Juan CarlosSouza Junior, C.L. deNarro Leon, LAPandey, 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

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...


Pérez Velásquez, Juan CarlosCeballos, H.Jaramillo, GustavoMorante, NCalle, FArias, B.Bellotti, Anthony C.[Epistasis in cassava adapted to midaltitude valley environments]Epistasis in cassava adapted to midaltitude valley environments
Sánchez, T.Ceballos, H.Debouck, Daniel G.Mafla, G.Calle, FPérez Velásquez, Juan CarlosDufour, D.L.Morante, NTohme, Joseph M.[Variation in starch and root quality traits in cassava]Variation in starch and root quality traits in cassava
Pérez Velásquez, Juan CarlosCeballos, H.Lentini, ZLópez, J.Morante, N[Introduction of inbreeding and analysis of inbreeding depression in eight S1 cassava families]Introduction of inbreeding and analysis of inbreeding depression in eight S1 cassava families

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...


Sánchez, T.Salcedo, ECeballos, H.Dufour, D.L.Mafla, G.Morante, NCalle, FPérez Velásquez, Juan CarlosDebouck, Daniel G.Jaramillo, GustavoMoreno, I.X.[Screening of starch quality traits in cassava (Manihot esculenta Crantz)]Screening of starch quality traits in cassava (Manihot esculenta Crantz)

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...


Calle, FPérez Velásquez, Juan CarlosGaitan, WMorante, NCeballos, H.Llano Rodríguez, Germán AlbertoÁlvarez, 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

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