Descubre y comparte nuestro conocimiento público

Se han encontrado 13 recursos

Resultados de búsqueda

Journal Article 2000

Autor: Fregene, Martin A. Bernal, A. Duque E., Myriam Cristina Dixon, Alfred G.O. Tohme, Joseph M.

Amplified fragment length polymophism was assessed in 20 land races and nine elite lines of cassava from Africa, resistant and susceptible to the cassava mosaic disease (CMD). Eleven accessions from a representative core collection from Latin America, previously studied by AFLPs, were included as...

Enlace original: https://cgspace.cgiar.org/handle/10568/42554

Investigación en Agricultura
Enlace permanente
Fregene, Martin A. ,  Bernal, A. ,  Duque E., Myriam Cristina ,  Dixon, Alfred G.O. ,  Tohme, Joseph M. ,  [AFLP analysis of African cassava (Manihot esculenta Crantz) germplasm resistant to the cassava mosaic disease (CMD)] ,  AFLP analysis of African cassava (Manihot esculenta Crantz) germplasm resistant to the cassava mosaic disease (CMD)
Journal Article 1999

Autor: Nukenine, E.N. Dixon, Alfred G.O. Hassan, A.T. Asiwe, J.A.N.

Three field trials were conducted at IITA, Ibadan, Nigeria between 1993 and 1995 to identify a rapid method of screening cassava (Manihot esculenta Crantz) cultivars for canopy retention and to determine the association between canopy retention and resistance to green spider mite (Mononychellus t...

Enlace original: https://cgspace.cgiar.org/handle/10568/96062

Investigación en Agricultura
Enlace permanente
Nukenine, E.N. ,  Dixon, Alfred G.O. ,  Hassan, A.T. ,  Asiwe, J.A.N. ,  [Evaluation of cassava cultivars for canopy retention and its relationship with field resistance to green spider mite] ,  Evaluation of cassava cultivars for canopy retention and its relationship with field resistance to green spider mite
Journal Article 1999

Autor: Fokunang, C.N. Akem, C.N. Ikotun, T. Dixon, Alfred G.O.

Twelve cassava (Manihot esculenta Crantz) genotypes were planted under natural field conditions for two different cropping seasons (wet and dry), in 1992 and 1993 at the research farm of the International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. The trial studied the effect of p...

Enlace original: https://cgspace.cgiar.org/handle/10568/96063

Investigación en Agricultura
Enlace permanente
Fokunang, C.N. ,  Akem, C.N. ,  Ikotun, T. ,  Dixon, Alfred G.O. ,  [Effect of planting season on cassava anthracnose disease development] ,  Effect of planting season on cassava anthracnose disease development
Journal Article 2008

Autor: Ssemakula, G.N. Dixon, Alfred G.O. Maziya-Dixon, B.B.

Iron (Fe) and Zinc (Zn) concentrations in tuberous roots of twenty-five cassava (Manihot esculenta Crantz) genotypes were determined over 2 years (2004/2005 and 2005/2006) at five locations representing distinct agroecologies in Nigeria. The objectives were to study the magnitude and nature of ge...

Enlace original: https://cgspace.cgiar.org/handle/10568/90912

Investigación en Agricultura
Enlace permanente
Ssemakula, G.N. ,  Dixon, Alfred G.O. ,  Maziya-Dixon, B.B. ,  [Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots] ,  Stability of iron and zinc concentrations in selected genotypes of cassava (Manihot esculenta Crantz) tuberous roots
Journal Article 2003

Autor: Abdullahi, I. Atiri, G.I. Dixon, Alfred G.O. Winter, S. Thottappilly, G.

A survey was carried out in the 1996/97 and 1997/98 growing seasons on a field planted in three replicates with five clones of cassava at the International Institute of Tropical Agriculture, Ibadan, located in a transition forest, to determine the effects of cassava genotype and climate on the de...

Enlace original: https://cgspace.cgiar.org/handle/10568/97970

Investigación en Agricultura
Enlace permanente
Abdullahi, I. ,  Atiri, G.I. ,  Dixon, Alfred G.O. ,  Winter, S. ,  Thottappilly, G. ,  [Effects of cassava genotype, climate, and the Bemisia tabaci vector population on the development of African cassava mosaic geminivirus (ACMV)] ,  Effects of cassava genotype, climate, and the Bemisia tabaci vector population on the development of African cassava mosaic geminivirus (ACMV)
Journal Article 2002

Autor: Akano, A.O. Dixon, Alfred G.O. Mba, C Barrera Sabogal, E Fregene, Martin A.

Cassava mosaic disease (CMD) is the most-important disease of cassava (Manihot esculenta) in Africa, and is a potential threat to Latin American (LA) cassava production. Although this viral disease is still unknown in LA, its vector – the whitefly – has recently been found. The disease is best co...

Enlace original: https://cgspace.cgiar.org/handle/10568/42896

Investigación en Agricultura
Enlace permanente
Akano, A.O. ,  Dixon, Alfred G.O. ,  Mba, C ,  Barrera Sabogal, E ,  Fregene, Martin A. ,  [Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease] ,  Genetic mapping of a dominant gene conferring resistance to cassava mosaic disease
Journal Article 1998

Autor: Dixon, Alfred G.O. Nukenine, EN

Dry yield and yield components from 6 multilocational trials of cassava genotypes conducted for 3 years in Nigeria were used to study the nature and magnitude of genotype x environment (G x E) interaction and to determine the optimum resource allocation for cassava yield trials. The effects of en...

Enlace original: https://cgspace.cgiar.org/handle/10568/42915

Investigación en Agricultura
Enlace permanente
Dixon, Alfred G.O. ,  Nukenine, EN ,  [Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava] ,  Genotype x environment interaction and optimum resource allocation for yield and yield components of cassava
Journal Article 2002

Autor: Dixon, Alfred G.O. Ngeve, JM Nukenine, EN

Eight improved cassava ( Manihot esculenta check for this species in other resources Crantz) genotypes and one local variety were grown over three years in three agro-ecological zones of Nigeria, to study their response to natural infestations of African cassava mosaic disease (ACMD), cassava ba...

Enlace original: https://cgspace.cgiar.org/handle/10568/44047

Investigación en Agricultura
Enlace permanente
Dixon, Alfred G.O. ,  Ngeve, JM ,  Nukenine, EN ,  [Response of cassava genotypes to four biotic constraints in three agro-ecologies of Nigeria] ,  Response of cassava genotypes to four biotic constraints in three agro-ecologies of Nigeria
Journal Article 1998

Autor: Larbi, Asamoah Dixon, Alfred G.O. Smith, Jimmy W. Yusuf, A.T.

The objective of this study was to determine variations in root and foliage yields, crude protein (CP), and dry matter (DM) degradation characteristics of foliage among 25 cassava clones selected for green mite resistance at Ibadan, south-western Nigeria. Clones were sampled 12 months after plant...

Enlace original: https://cgspace.cgiar.org/handle/10568/29700

Investigación en Agricultura
Enlace permanente
Larbi, Asamoah ,  Dixon, Alfred G.O. ,  Smith, Jimmy W. ,  Yusuf, A.T. ,  [Variations in root and foliage yields and quality among green mite-resistant cassava clones] ,  Variations in root and foliage yields and quality among green mite-resistant cassava clones
Journal Article 2006

Autor: Lokko, Y Dixon, Alfred G.O. Offei, S Danquah, E.Y. Fregene, Martin A.

A study was conducted to determine the extent of genetic diversity among African cassava (Manihot esculenta Crantz) accessions resistant to the cassava mosaic virus disease (CMD), using simple sequence repeat (SSR) markers. The accessions included a breeding stock (clone 58308), five improved lin...

Enlace original: https://cgspace.cgiar.org/handle/10568/43200

Investigación en Agricultura
Enlace permanente
Lokko, Y ,  Dixon, Alfred G.O. ,  Offei, S ,  Danquah, E.Y. ,  Fregene, Martin A. ,  [Assessment of genetic diversity among African cassava Manihot esculenta Crantz accessions resistant to the cassava mosaic virus disease using SSR markers] ,  Assessment of genetic diversity among African cassava Manihot esculenta Crantz accessions resistant to the cassava mosaic virus disease using SSR markers

Selecciona los documentos para visualizarlos

Nombre del archivo Ver recurso
Marcar todos
Limpiar todo