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Ceballos, H.Pérez Velásquez, Juan CarlosJaramillo O, GMorante, NCalle, FLenis, Jorge I.[Inheritance of agronomically relevant traits in cassava]Inheritance of agronomically relevant traits in cassava
Pérez Velásquez, Juan CarlosCeballos, H.Lenis, Jorge I.Ortega, E.Calle, FMorante, N[Stability and genotype by environment analysis in cassava]Stability and genotype by environment analysis in cassava
Pérez Velásquez, Juan CarlosOrtega, E.Lenis, Jorge I.Morante, NEspitia Camacho, MMCeballos, H.[Correlaciones genéticas, fenotípicas y ambientales entre diferentes caracteres en yuca]Correlaciones genéticas, fenotípicas y ambientales entre diferentes caracteres en yuca
Chávez, Alba L.Ceballos, H.Sánchez, T.Tohme, Joseph M.[Nutritional and agronomic advantages of yellow rooted cassava]Nutritional and agronomic advantages of yellow rooted cassava

In large ex situ germplasm collections, such as that maintained at CIAT for cassava, it is common to observe duplicates. The presence of duplicate clones increases the cost of conservation without contributing to representation or the available genetic base for crop improvement. To identify group...


Ocampo Nahar, César H.Angel, F.Jiménez, A.Jaramillo O, GHershey, Clair H.Granados F, EIglesias, C.A.[DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm]DNA fingerprinting to confirm possible genetic duplicates in cassava germplasm
Parkes, E.Kulakow, P.A.Alamu, E.O.Maziya-Dixon, B.B.Aina, O.O.Ofei, R.Iluebbey, P.Agbona, A.Bakare, M.Dixon, A.[Performance of proVitamin A cassava clones across eleven environments in two seasons in Nigeria]Performance of proVitamin A cassava clones across eleven environments in two seasons in Nigeria
Hirumi, H.Hirumi, K.Doyle, J.J.[Cultivation, complete cyclic Development and cloning of Trypanosoma brucei in vitro]Cultivation, complete cyclic Development and cloning of Trypanosoma brucei in vitro

Several species of double-stranded RNA (dsRNA) were found to occur in the cassava clone Secundina, which was thought to be virus- free. A large dsRNA molecule (6.6 x 106 Mr = relative molecular mass)(L-dsRNA) was shown to be graft, but not mechanically transmitted and occurred primarily in a nucl...


Gabriel, C.J.Walsh, RNolt, Barry L.[Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)]Postharvest root deterioration or vascular streaking of cassava clones (accessions and breeding lines) was evaluated with harvests at different ages (8 and 12 mo.), seasons (beginning and end of wet season), and locations (CIAT-Palmira, Carimagua, and Caribia in Colombia) to assess the effect of environmental factors on cassava genotypes. Vascular streaking was sensitive to any of these environmental factors. Genotype x location interaction was highly significant suggesting that final cv. selection should be carried out in each location. Genetic analysis carried out in one location suggested that inheritance of vascular streaking was, at least partly, controlled by additive factors and was quantitative rather than qualitative. Narrow sense heritability of 0.64 was obtained. Vascular streaking was highly and significantly correlated with root DM content in all the trials conducted during 7 yr. Since free recombination between resistance to vascular streaking and high root DM content may not be possible, the most acceptable balance between these 2 traits should be defined according to the use of product and edaphoclimatic condition of production area prior to selection program. (AS)
Akol, G.W.O.Murray, M.Morrison, W. Ivan[Early events in the pathogenesis of African trypanosomiasis in domestic cattle. 2. Cyclical rechallenge of cattle exposed to cloned isolates of Trypanosoma congolense]Early events in the pathogenesis of African trypanosomiasis in domestic cattle. 2. Cyclical rechallenge of cattle exposed to cloned isolates of Trypanosoma congolense

The existence of endophytes in cassava was suspected for the following reasons: (a) A wide range variation of root yield is frequent among disease-symptomless plants growing on the same plot; (b) root yield of low-yielding, virus-free plants of traditional clones can be increased by meristem cult...


Rivera, MFLaberry Saavedra, Rafael AlbertoLozano, J.C.[Evidences for endophytes parasiting traditional clones of cassava (Manihot esculenta Crantz)]Evidences for endophytes parasiting traditional clones of cassava (Manihot esculenta Crantz)

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