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Los recientes cambios en los sistemas de producción de maíz (Zea mays L.), incluyendo siembras escalonadas y continúas del cultivo en Colombia, han incrementado la incidencia de algunas enfermedades, entre las que se destaca el mosaico de la caña de azúcar (SCMV). Estudios de varios investigadore...


Salazar Erazo, SMLeón, C. de[Selección de líneas de maíz (Zea mays L.) con resistencia al virus del mosaico de la caña de azúcar (SCMV)]Selección de líneas de maíz (Zea mays L.) con resistencia al virus del mosaico de la caña de azúcar (SCMV)

Una de las principales herramientas para el manejo de pudriciones radicales causadas por diversas especies de Phytophthora, es el uso de resistencia varietal, para lo cual se hace necesario entender la complejidad de la base genética de la yuca. Con este propósito, se evalué la resistencia de los...


Álvarez, E.Loke, JRivera, SLlano Rodríguez, Germán Alberto[Genética de la resistencia a pudrición causada por Phytophthora tropicalis en dos poblaciones segregantes de yuca (Manihot esculenta Crantz)]Genética de la resistencia a pudrición causada por Phytophthora tropicalis en dos poblaciones segregantes de yuca (Manihot esculenta Crantz)
Martínez, A.K.Morales, Francisco JoséVallejo Cabrera, Franco Alirio[Caracterización molecular de un begomovirus del tomate en el Valle del Cauca, Colombia, y búsqueda de fuentes de resistencia para el mejoramiento de la variedad Unapal Maravilla = Molecular characterization of a begomovirus affecting tomato in the Cauca Valle - Colombia and identification of sources of resistance to improve the variety Unapal Maravilla]Caracterización molecular de un begomovirus del tomate en el Valle del Cauca, Colombia, y búsqueda de fuentes de resistencia para el mejoramiento de la variedad Unapal Maravilla = Molecular characterization of a begomovirus affecting tomato in the Cauca Valle - Colombia and identification of sources of resistance to improve the variety Unapal Maravilla

N'Guessan, K.F.Lachenaud, P.N'Goran, J.A.K.Eskes, A.B.[Antixenosis as a mechanism of cocoa resistance to the cocoa mirid, Sahlbergella singularis (Hemiptera: Miridae)]Antixenosis as a mechanism of cocoa resistance to the cocoa mirid, Sahlbergella singularis (Hemiptera: Miridae)

Stylosanthes guianensis is a diverse tropical and subtropical forage legume of great potential. Foliar blight disease, caused by Rhizoctonia solani AG-1, can be a significant constraint to the legume’s production in some areas. The pathogen has a broad range of host plant species, and can survive...


Kelemu, SegenetChangshun, JGuixi, HSegura, G.[Genetic transformation of the tropical forage legume Stylosanthes guianensis with a rice-chitinase gene confers resistance to Rhizoctonia foliar blight disease]Genetic transformation of the tropical forage legume Stylosanthes guianensis with a rice-chitinase gene confers resistance to Rhizoctonia foliar blight disease

Thirteen cassava genotypes were evaluated at the International Institute of Tropical Agriculture, Ibadan, Nigeria for anthracnose (CAD), bacterial blight (CBB) and cassava mosaic disease (CMD) incidence and severity, and their effects on yield, for three consecutive planting seasons. There were s...


Fokunang, C.N.Ikotun, TDixon, Alfred G.O.Akem, C.N.[Field reaction of cassava genotypes to anthranose, bacterial blight, cassava mosaic disease and their effects on yield]Field reaction of cassava genotypes to anthranose, bacterial blight, cassava mosaic disease and their effects on yield
Fregene, Martin A.Matsumura, HAkano, A.O.Dixon, Alfred G.O.Terauchi, R.[Progress towards cloning the single dominant gene conferring immunity to cassava mosaic disease (CMD)]Progress towards cloning the single dominant gene conferring immunity to cassava mosaic disease (CMD)
Autor: Gruner, L.

In this overview, the results of studies in France were given on the genetic variability in resistance to helminth parasites in Romonov and Merino d'Arles sheep and Saanen and Alpine goats. The paper focusses on diversity of helminth parasites, innate vs acquired resistance, criteria for genetic ...


Gruner, L.[Overview of genetic basis of resistance to endoparasites in small ruminants]Overview of genetic basis of resistance to endoparasites in small ruminants
Santaella Tenorio, MZuluaga, PASuárez, EGonzález, C.López, C.E.Acosta, I.Badillo, ARestrepo, S.Tohme, Joseph M.Verdier, Valérie[Characterization of defense genes to cassava bacterial blight]Characterization of defense genes to cassava bacterial blight
Tomkins, JPFregene, Martin A.Tohme, Joseph M.Wing, RA[Involvement of farmers in the development of cassava low-cost input, in vitro propagation methods]Involvement of farmers in the development of cassava low-cost input, in vitro propagation methods

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