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Journal Article 1997

Autor: Tonukari, N.J. Thottappilly, G. Ng, N.Q. Mignouna, H.

A knowledge of the extent of genetic variation in a crop is a prerequisite for its improvement. In cassava (Manihot esculenta Crantz) such knowledge is lacking especially at the DNA level. The genetic variation among 28 cassava varieties collected from different locations in the Republic of Benin...

La connaissance de l'importance de variation genetique chez une culture est necessaire pour son amelioration. Chez le manioc (Manihot esculenta Crantz), une telle connaissance manque surtout au niveau du DNA. La variation genetique parmi les 28 varietes du manioc recueillies de differentes locali...

Enlace original: https://cgspace.cgiar.org/handle/10568/95931

Investigación en Agricultura
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Tonukari, N.J. ,  Thottappilly, G. ,  Ng, N.Q. ,  Mignouna, H. ,  [Genetic polymorphism of cassava within the Republic of Benin detected with RAPD markers] ,  Genetic polymorphism of cassava within the Republic of Benin detected with RAPD markers
Journal Article 2004

Autor: Balogun, M.O. Ng, S.Y. Shiwachi, H. Ng, N.Q. Fawole, I.

Single node cuttings of two genotypes each of Dioscorea alata and D. rotundata from both plants grown in screen houses and in vitro plantlets were cultured in a tuberization medium. The screen house explants had significantly higher plantlet tuberization and primary nodal complex formation, and m...

Enlace original: https://cgspace.cgiar.org/handle/10568/103297

Investigación en Agricultura
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Balogun, M.O. ,  Ng, S.Y. ,  Shiwachi, H. ,  Ng, N.Q. ,  Fawole, I. ,  [Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata] ,  Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata
Journal Article 2000

Autor: Daniel, I. Ng, N.Q. Tayo, T. Togun, A.

Yam (Dioscorea spp., family Dioscoreaceae) is one of the most important food crops cultivated in the West African yam zone comprising the forest and savannah areas of Nigeria, Ghana, Cote d'Ivoire, Republic of Benin, and Togo, which account for more than 90% of the 4.59 million ha of yam cultivat...

Enlace original: https://cgspace.cgiar.org/handle/10568/99844

Investigación en Agricultura
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Daniel, I. ,  Ng, N.Q. ,  Tayo, T. ,  Togun, A. ,  [West African yam seeds stored under desiccated and cold storage conditions are orthodox] ,  West African yam seeds stored under desiccated and cold storage conditions are orthodox
Journal Article 1992

Autor: Barone, A. Giudice, A. del Ng, N.Q.

Interspecific hybridization between Vigna unguiculata and V. vexillata always failed: no seed was obtained in both crossing directions. Two different barriers to crossability were found: a pre-zygotic barrier and a post-zygotic one. Many abnormalities were observed in pollen-tube development, whi...

Enlace original: https://cgspace.cgiar.org/handle/10568/99890

Investigación en Agricultura
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Barone, A. ,  Giudice, A. del ,  Ng, N.Q. ,  [Barriers to interspecific hybridization between Vigna unguiculata and Vigna vexillata] ,  Barriers to interspecific hybridization between Vigna unguiculata and Vigna vexillata
Journal Article 1997

Autor: Ng, S.Y.C. Ng, N.Q.
Enlace original: https://cgspace.cgiar.org/handle/10568/103870

Investigación en Agricultura
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Ng, S.Y.C. ,  Ng, N.Q. ,  [Cassava in vitro germplasm management at the International Institute of Tropical Agriculture] ,  Cassava in vitro germplasm management at the International Institute of Tropical Agriculture
Journal Article 2004-04

Autor: Odu, B.O. Hughes, J.D.A. Asiedu, Robert Ng, N.Q. Shoyinka, S.A. Oladiran, O.A.

The responses of 24 white yam (Dioscorea rotundata) cultivars to mechanical and vector transmission with each of three viruses infecting yams were assessed through enzyme-linked immunosorbent assay (ELISA) and symptom development. The viruses were Dioscorea alata virus (DAV), genus Potyvirus; Dio...

Enlace original: https://cgspace.cgiar.org/handle/10568/96405

Investigación en Agricultura
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Odu, B.O. ,  Hughes, J.D.A. ,  Asiedu, Robert ,  Ng, N.Q. ,  Shoyinka, S.A. ,  Oladiran, O.A. ,  [Responses of white yam (Dioscorea rotundata) cultivars to inoculation with three viruses] ,  Responses of white yam (Dioscorea rotundata) cultivars to inoculation with three viruses
Journal Article 1998

Autor: Mignouna, H.D. Ng, N.Q. Ikea, J. Thottappilly, G.

Knowledge of the genetic relationships and variability among cultivated germplasm is important for facilitating the transfer of useful genes and maximizing the use of available germplasm resources. In this study, random amplified polymorphic DNA (RAPD) markers were used to assess genetic diversit...

Enlace original: https://cgspace.cgiar.org/handle/10568/100981

Investigación en Agricultura
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Mignouna, H.D. ,  Ng, N.Q. ,  Ikea, J. ,  Thottappilly, G. ,  [Genetic diversity in cowpea as revealed by random amplified polymorphic DNA] ,  Genetic diversity in cowpea as revealed by random amplified polymorphic DNA
Journal Article 1996

Autor: Lattanzio, V. Cardinali, A. Linsalata, V. Perrino, P. Ng, N.Q.

Flavonoid chemical markers together with other biochemical markers and/or morphological data can provide useful characters for defining species in Vigna genus. In this paper flavonoid HPLC fingerprints have been utilized to assess taxonomic relationships amongst species and accessions of Vigna.Wi...

Enlace original: https://cgspace.cgiar.org/handle/10568/101029

Investigación en Agricultura
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Lattanzio, V. ,  Cardinali, A. ,  Linsalata, V. ,  Perrino, P. ,  Ng, N.Q. ,  [A Chemosystematic study of the flavonoids of Vigna] ,  A Chemosystematic study of the flavonoids of Vigna
Journal Article 1995

Autor: Paul, C. Ng, N.Q. Ladeinde, T.A.

The genetics of resistance to rice yellow mottle sobemovirus (RYMV) in O. glaberrima was studied in a 6 parent full diallel cross involving 4 resistant and 2 susceptible genotypes. F1 hybrids resulting from crosses between resistant and susceptible genotypes were susceptible. Susceptibility was c...

Enlace original: https://cgspace.cgiar.org/handle/10568/101063

Investigación en Agricultura
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Paul, C. ,  Ng, N.Q. ,  Ladeinde, T.A. ,  [Diallel analysis of resistance to rice yellow mottle virus in African rice Oryza glabelrrima Steud] ,  Diallel analysis of resistance to rice yellow mottle virus in African rice Oryza glabelrrima Steud

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