Ng, N. Q.    

Firstname:N. Q. 
Surname:Ng 
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Publications as Author



2011

Genetic diversity in bambara groundnut (Vigna subterranea (L.) verdc.) as revealed by phenotypic descriptors and DArT marker analysis, Olukolu, B. A., Mayes, S., Stadler, F., Ng, N. Q., Fawole, I.*, Dumet, D., Azam-Ali, S., Abbott, A. G. and Kole, C.*, in: Genetic Resources and Crop Evolution, ISSN 0925-9864, 2011. [DOI]
 

2008

Genetic diversity in wild relatives of cowpea (Vigna unguiculata) as revealed by simple sequence repeats (SSR) markers, Ogunkanmi, L. A.*, Ogundipe, O. T.*, Ng, N. Q. and Fatokun, C., in: Journal of Food, Agriculture and Environment, volume 6, number 3&4, pages 132-137, ISSN 1459-0255, 2008.
 

2007

Genetic diversity in yard-long-bean (Vigna unguiculata subspecies unguiculata cv-gr sesquipedalis) as revealed by simple sequence repeat (SSR) markers, Ogunkanmi, L. A.*, Ogundipe, O. T.*, Ng, N. Q., Scoles, G. J. and Fatokun, C., in: Journal of Genetics and Breeding, volume 61, ISSN 0394-9257, 2007.
 
Variations in microtuberization among local, improved and exotic yam accessions in Nigeria, Balogun, M., Ng, N. Q., Fawole, I. and Kikuno, H ., in: Proceeding of 20th Annual Conference Biotechnology Society of Nigeria, Ebonyi State University, Abakaliki, Nigeria, 14-17 November, 2007, pages 44-47, 2007.
 

2006

Interaction among cultural factors in microtuberization of white yam (Dioscorea rotundata), Balogun, M., Fawole, I., Ng, S. Y. C., Ng, N. Q., Shiwachi, H . and Kikuno, H ., in: Tropical Science, volume 46, number 1, pages 55-59, ISSN 0041-3291, 2006.
 

2004

Responses of white yam (Dioscorea rotundata) cultivars to inoculation with three viruses, Odu, B., Hughes, J., Asiedu, R., Ng, N. Q., Shoyinka, S.* and Oladiran, O., in: Plant Pathology, volume 53, number 2, pages 141-147, ISSN 0032-0862, 2004.
 
Comparative effects of explant source and genotype on in vitro tuberization in Dioscorea alata and D. rotundata, Balogun, M., Ng, S. Y. C., Shiwachi, H ., Ng, N. Q. and Fawole, I., in: Tropical Science, volume 44, number 4, pages 196-200, 2004.
 
Proceedings of the 8th Triennial Symposium of ISTRC-AB, September 2004, IITA, Ibadan, Nigeria, Aikpokpodion, P., Ng, N. Q. and Akoroda, M., International Institute of Tropical Agriculture (IITA), 2004.
 

2003

Contribution a la caracterisation agro-morphologiques des ignames de l'espece Dioscorea alata L. en Cote d'Ivoire, Kouaku, A. M., Mignouna, H., Ng, N. Q., Asiedu, R., Zoundjihekpon, J., Ahoussou, N., Doumbia, S. and Zohouri, P. G., in: Root crops: the small processor and development of local food industries for market economy: proceeding of the Eighth Triennial Syposium of the International Society for Tropical Root Crops - Africa Branch (ISTRC-AB), 12-16 November 2001, Ibadan, Nigeria, pages 620-625, 2003.
 

2002

Wet-cold preservation of West African yam (Dioscorea spp.) pollen, Daniel, I.*, Ng, N. Q., Tayo, T. and Togun, A.*, in: Journal of Agricultural Science, volume 138, pages 57-62, 2002.
 
Cassava genetic resources and conservation, Ng, N. Q. and Ng, S. Y. C., pages 167-177, Wallingford, UK: CABI, 2002.
 

2001

Access to and sharing of plant biodiversity: the case of IITA in helping African nations to fight famine, Ng, N. Q., Asiedu, R., Singh, B., Menkir, A., Tenkouano, A., Asafo-Adjei, B.*, Ng, S. Y. C., Whyte, J., Badu-Apraku, B., Mahungu, N. and Ortiz, R., pages 91, 2001.
 

2000

Cryopreservation of cassava and yam shoot tips by fast freezing, Ng, S. Y. C. and Ng, N. Q., in: Cryopreservation of tropical plant germplasm-current research progress and application. Rome, Italy: Japan International Research Center for Agricultural Sciences(JIRCAS); International Plant Genetic Resources Institute (IPGRI), pages 136-139, 2000.
 
West African yam seeds stored under desiccated and cold storage conditions are orthodox, Daniel, I.*, Ng, N. Q., Tayo, T. and Togun, A.*, in: Seed Science and Technology, volume 27, pages 969-975, 2000.
 
Storage of pollens for long-term conservation of yam genetic resources, Ng, N. Q. and Daniel, I.*, in: Cryopreservation of tropical plant germplasm-current research progress and application. Tsukuba, Japan; Rome, Italy: Japan International Research Center for Agricultural Sciences (JIRCAS); International Plant Genetic Resources Institute (IPGRI), pages 136-139, 2000.
 

1999

International Institute of Tropical Agriculture, Schilder, A. M. C., Florini, D. A., Berner, D. K., Hughes, J., Ng, S. Y. C., Ng, N. Q., Thottappilly, G. and Haug, T. M., pages 65-78, APS Press, 1999.
 
Biotechnology in germplasm management of cassava and yams: in plant conservation biotechnology, Ng, S. Y. C., Mantell, S. H. and Ng, N. Q., pages 179-209, Taylor and Francis, 1999.
 
Potential contributions of pollen banks to yam improvement, Daniel, I.*, Tayo, T., Ng, N. Q. and Togun, A.*, in: Genetics Society of Nigeria anniversary sourvenir brochure and book of abstracts, 1999 annual conference and 25th anniversary celebrations, National Cereal Research Institute Badeggi, 7-9 September, 1999, pages 24, 1999.
 
Integrating a geographic information system with germplasm databases, Jagtap, S. and Ng, N. Q., in: DNA marker-assisted improvement of the staple crops of sub-Saharan Africa. Proceedings of a workshop on DNA markers, Ibadan, Nigeria, 21–22 August 1996, pages 85-92, International Institute of Tropical Agriculture (IITA); CTA, 1999.
 
Yam field genebank management at IITA, Ng, S. Y. C. and Ng, N. Q., pages 124-126, IPGRI, 1999.
 
Germplasm characterization at IITA, Ng, N. Q., Thottappilly, G. and Mignouna, H., in: DNA marker-assisted improvement of the staple crops of sub-Saharan Africa: proceedings of a workshop on DNA markers, Ibadan, Nigeria, 21-22 August 1996, pages 78-84, International Institute of Tropical Agriculture (IITA); CTA, 1999.
 
Yam field genebank management at IITA, Ng, N. Q. and Ng, S. Y. C., pages 16-18, IPGRI, 1999.
 

1998

Application of molecular markers in germplasm enhancement of cassava (Manihot esculenta Crantz) and yam (Dioscorea spp.) at IITA, Mignouna, H., Asiedu, R., Dixon, A., Tonukari, N. J., Ng, N. Q., Thottappilly, G., Knox, M. R. and Ellis, T., in: Technical document, FAO/IAEA on 'Use of novel DNA fingerprinting techniques for the detection and characterisation of genetic variation in vegetatively propagated crops', Mumbi, India, 24-27 February 1997, 1998.
 
Potential of seed storage for long-term conservation of yam germplasm, Daniel, I.*, Ng, N. Q. and Tayo, T., in: Root crops and poverty alleviation: proceedings of the Sixth Triennial Symposium of the International Society for Tropical Root Crops�Africa Branch (ISTRC�AB), Lilongwe, Malawi, 22�28 October 1995, pages 409-411, International Institute of Tropical Agriculture: ISTRC�AB, 1998.
 
Genetic diversity in cowpea as revealed by random amplified polymorphic DNA, Mignouna, H., Ng, N. Q., Ikea, J. and Thottappilly, G., in: Journal of Genetics & Breeding, volume 53, pages 151-159, ISSN 0394-9257, 1998.
 
Theoretical and practical considerations in the regeneration of cowpea germplasm at IITA, Ng, N. Q. and Hughes, J., pages 76-80, IPGRI, 1998.
 

1997

Rice, Jackson, M. T., Loresto, G. C., Appa Rao, S., Jones, M., Guimaraes, E. P. and Ng, N. Q., pages 273-291, Cambridge University Press, 1997.
 
Flavonoid HPLC fingerprints of wild Vigna species, Lattanzio, V. A., Cardinali, A., Linsalata, V., Perrino, P. and Ng, N. Q., pages 66-74, chapter 6, International Institute of Tropical Agriculture (IITA); Japan International Research Center for Agricultural Sciences (JIRCAS), 1997.
 
Yams, Asiedu, R., Wanyera, N., Ng, S. Y. C. and Ng, N. Q., pages 57-66, Cambridge University Press, Cambridge, UK, 1997.
 
Cassava, Bonierbale, M., Guevara, C., Dixon, A., Ng, N. Q., Asiedu, R. and Ng, S. Y. C., pages 1-21, chapter 1, Cambridge University Press, 1997.
 
Wide crossing in African Vigna species, Fatokun, C., Perrino, P. and Ng, N. Q., pages 50-57, chapter 4, International Institute of Tropical Agriculture (IITA); Japan International Research Center for Agricultural Sciences (JIRCAS), 1997.
 
Utilization of Oryza glaberrima resources for lowland rice improvement, Singh, B. N., Maji, A. T.*, Ng, N. Q., Paul, C., Williams, C. and Ukwungwu, M., pages 177-187, WARDA/ADRAO, 1997.
 
Isozyme markers and taxonomic relationships among Vigna species, Sonnante, G., Piergiovanni, A. R., Ng, N. Q. and Perrino, P., pages 58-65, chapter 5, International Institute of Tropical Agriculture (IITA); Japan International Research Center for Agricultural Sciences (JIRCAS), 1997.
 
Characterization and evaluation of IITA's bambara groundnut collection, Goli, A. E., Begemann, F. and Ng, N. Q., pages 101-108, International Plant Genetic Resources Institute (IPGRI), 1997.
 
Genetic polymorphism of cassava within the Republic of Benin detected with RAPD markers, Tonukari, N. J., Thottappilly, G., Ng, N. Q. and Mignouna, H., in: African Crop Science Journal, volume 5, number 3, pages 219-228, ISSN 1021-9730, 1997.
 
Introgression of African landraces and arborescent cassava in genetic improvement of cassava in SSA: problems, progress and prospects, Dixon, A., Asiedu, R. and Ng, N. Q., in: Paper presented at the regional workshop for the conservation and utlization of cassava, sweetpotato and yam germplasm in sub-Saharan Africa, organized by CIP/IITA/IPGRI in Nairobi, 11-13 November, 1997, 1997.
 
Cassava in vitro germplasm management at the International Institute of Tropical Agriculture, Ng, S. Y. C. and Ng, N. Q., in: African Journal of Root and Tuber Crops, volume 2, pages 232-234, 1997.
 
Origin, taxonomy and morphology of Vigna unguiculata (L.) Walp, Padulosi, S. and Ng, N. Q., pages 1-12, chapter 1, International Institute of Tropical Agriculture (IITA); Japan International Research Center for Agricultural Sciences (JIRCAS), 1997.
 
Germplasm conservation in food yams (Dioscorea spp.): constraints, application and future prospects, Ng, S. Y. C. and Ng, N. Q., volume 1, pages 257-286, Science Publishers, 1997.
 
Cowpea, Ng, N. Q. and Singh, B., pages 82-99, Cambridge University Press, 1997.
 
Yam characterization and evaluation: problems and prospects, Ng, N. Q., Asiedu, R. and Mignouna, H., in: Paper presented at the regional workshop for the conservation and utlization of cassava, sweetpotato and yam germplasm in sub-Saharan Africa, organized by CIP/IITA/IPGRI in Nairobi, 11-13 November, 1997, 1997.
 
Cassava and yam genetic resources conservation and use in Africa: an overview from IITA, Ng, N. Q., Asiedu, R., Dixon, A., Ng, S. Y. C., Abaka-Whyte, J. and Mahungu, N., in: Paper presented at the regional workshop for the conservation and utlization of cassava, sweetpotato and yam germplasm in sub-Saharan Africa, organized by CIP/IITA/IPGRI in Nairobi, 11-13 November, 1997, 1997.
 

1996

Chemosystematic study of the flavonoids of Vigna, Lattanzio, V., Cardinali, A., Linsalata, V., Perrino, P. and Ng, N. Q., in: Genetic Resources and Crop Evolution, volume 43, pages 493-504, 1996.
 
Resistance to the legume pod borer, Maruca vitrata Fabricius and the probable modalities involve in wild Vigna, Jackai, L., Padulosi, S. and Ng, N. Q., in: Crop Protection, volume 15, number 8, pages 753-761, 1996.
 
Relationships of Vigna unguiculata (L) Walp., V. vexilata (L) A.Rich. and species of section Vigna based on isozyme variation, Sonnante, G., Piergiovanni, A. R., Ng, N. Q. and Perrino, P., in: Genetic Resources and Crop Evolution, volume 43, pages 157-165, 1996.
 
Molecular markers in germplasm enhancement of yams (Dioscorea spp.), Mignouna, H., Ng, N. Q., Asiedu, R. and Thottappilly, G., in: 2nd Internaitonal Crop Science Congress, 17-24 November 1996, Newsletter, India: abstracts of poster session, pages 312, 1996.
 
Molecular markers in germplasm enhancement of yams (Dioscorea spp.), Mignouna, H., Ng, N. Q., Asiedu, R. and Thottappilly, G., in: 2nd Internaitonal Crop Science Congress, 17-24 November 1996, Newsletter, India: abstracts of poster session, pages 312, 1996.
 
Conservation des ressources genetiques par le stockage des graines: Guide de recherche de l'Iita, No. 52, Ng, N. Q., Guide de recherche de l'Iita, No. 52, International Institute of Tropical Agriculture (IITA), 1996.
 
The role of Plant Quarantine Service in germplasm conservation, Ng, N. Q., pages 29-35, International Institute of Tropical Agriculture (IITA); Plant Quarantine Service of Nigeria, 1996.
 
Preservation of genetic resources by seed storage: IITA research guide, No. 52, Ng, N. Q., IITA research guide, No. 52, International Institute of Tropical Agriculture (IITA), 1996.
 

1995

Random amplified polymorphism DNA (RAPD) markers for genetic fingerprinting of IITA elite clones and landraces of root crops, Mignouna, H., Asiedu, R., Tonukari, N. J., Ng, N. Q. and Thottappilly, G., in: Extended synopses, FAO/IAEA International Symposium on the use of induced mutations and molecular techniques for crop improvement, 19-23 June 1995, Vienna, Austria. IAEA-SM-340, pages 199, 1995.
 
Diallel analysis of resistance to rice yellow mottle virus in African rice Oryza glabelrrima Steud, Paul, C., Ng, N. Q. and Ladeinde, T. A. O.*, in: Journal of Genetics and Breeding, volume 49, pages 217-222, 1995.
 

1994

Screening germplasm of Vigna vexillata for resistance to cowpea mottle virus, Thottappilly, G., Ng, N. Q. and Rossel, H. W., in: International Journal of Tropical Plant Diseases, volume 12, pages 75-80, 1994.
 
Approaches for yam germplasm conservation, Ng, N. Q. and Ng, S. Y. C., in: In: Food crops for food security in Africa: proceedings of the Fifth Triennial Symposium of the International Society for Tropical Root Crops-African Branch, 22-28 November 1992, Kampala, Uganda, pages 135-140, ISBN: 978-2079-00-2; ISTRC-AB; CTA; International Institute of Tropical Agriculture (IITA), 1994.
 
Cassava genetic resources programme at the International Institute of Tropical Agriculture, Ng, N. Q., Asiedu, R. and Ng, S. Y. C., in: Report of the First Meeting of the International Network for Cassava Genetic Resources, CIAT, Cali, Colombia, 19-23 August 1992, pages 71-76, International Plant Genetic Resources Institute (IPGRI), 1994.
 

1993

The relevance of stomatal frequency, type and size in the delimitation of three complex species of Dioscorea L. (Dioscoreaceae), Ugborogho, R. E., Ng, N. Q., Thottappilly, G. and Hahn, S. K., in: Feddes Repertorium, volume 104, number 7-8, pages 485-496, 1993.
 
Protease inhibitors and lectins in cowpea, Marconi, E., Ng, N. Q. and Carnovale, E., in: Food Chemistry, volume 47, number 1, pages 37-40, 1993.
 
A useful and unexploited herb, Vigna marina (Leguminosale Papilionoidea) and the taxonomic revision of its genetic diversity, Padulosi, S. and Ng, N. Q., in: Bulletin du JardinBotanique National de Belgique, volume 62, pages 119-126, 1993.
 
Multipurpose tree and shrub permplasm evaluation and conservation at IITA, Ng, N. Q., Ladipo, D. O., Kang, B. and Atta-Krah, A. N., in: Proceedings of the International Consultation on the Development of the ICRAF MPT-Germplasm resources Centre, Nairobi, pages 144-156, International Centre for Research in Agroforestry, International Centre for Research in Agroforestry, Nairobi, Kenya, 1993.
 

1992

Barriers to interspecific hybridization between Vigna unguiculata and Vigna vexillata, Barone, A., Del Giudice, A. and Ng, N. Q., in: Sexual Plant Reproduction, volume 5, pages 195-200, 1992.
 
Wide crosses of Vigna food legumes, Ng, N. Q., pages 75-80, CTA; International Institute of Tropical Agriculture (IITA), 1992.
 
Constraints in the accessibility and use of germplasmcollections, Ng, N. Q. and Padulosi, S., pages 45-50, CTA; International Institute of Tropical Agriculture (IITA), 1992.
 

1991

Germplasm diversity in bambara groundnut and prospects for crop improvement, Goli, A. E., Begemann, F. and Ng, N. Q., pages 195-202, International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR, ISBN 978 131 0634, 1991.
 
Survey of wild Vigna in southern Africa, Padulosi, S., Laghetti, G., Ng, N. Q., Perrino, P. and Pienaar, B., in: Plant Genetic Resources Newsletter, volume 83/84, pages 5-8, 1991.
 
Reduced growth storage of germplasm, Ng, S. Y. C. and Ng, N. Q., pages 11-39, Chapman and Hall, 1991.
 
Long-term seed conservation, Ng, N. Q., pages 135-148, IBPGR, International Institute of Tropical Agriculture (IITA); UNEP, 1991.
 
The genetic resources activities of the International Institute of Tropical Agriculture, Ng, N. Q., pages 27-33, International Institute of Tropical Agriculture (IITA); IBPGRI; UNEP; CNR, 1991.
 
African rice diversity: conservation and prospects for crop improvement, Ng, N. Q., Chang, T. T., Vaughan, D. A. and Zuno-Alto Veros, C., volume II, pages 213-227, chapter 3.9, International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR, ISBN 978 131 063 4, 1991.
 
Cowpea genepool distribution and crop improvement, Ng, N. Q. and Padulosi, S., volume II, pages 161-174, chapter 3.5, International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR, ISBN 978 131 0634, 1991.
 
Crop genetic resources of Africa, Ng, N. Q., Perrino, P., Attere, F.H. and Zedan, H., volume II, International Institute of Tropical Agriculture (IITA); IBPGR; UNEP; CNR, 1991.
 

1990

Biochemical seed analysis in relation to bruchid resistance, Piergiovanni, A. R., Della Gatta, C., Singh, B., Singh, S. R., Ng, N. Q. and Perrino, P., pages 119-127, International Institute of Agriculture (IITA), 1990.
 
Nutritional evaluation of wild and cultivated species of cowpea, Marconi, E., Lomardi-Boccia, G., Carnovale, E. and Ng, N. Q., pages 101-110, International Institute of Tropical Agriculture (IITA), 1990.
 
Trypsin inhibitor levels in raw and cooked cowpea (Vigna unguiculata) seeds, Carsky, R., Della Gatta, C., Piergiovanni, A. R., Ng, N. Q., Perrino, P. and Carnovale, E., in: Lebensmittel-Wissenschaft und Technologie, volume 21, number 6, pages 1-3, 1990.
 
Investigation on the isozyme genotype and KCIO3 resistance of seedlings in African deep water rice, Oryza glaberrima Steudel, Hakoda, H., Inouye, J. and Ng, N. Q., in: Japanese Journal of Crop Science, volume 59, number 1, pages 198-199, 1990.
 
Collecting missions in Swaziland and Zimbabwe, Padulosi, S., Laghetti, G., Ng, N. Q. and Perrino, P., in: Plant Genetic Resources Newsletter, volume 78/79, pages 38, 1990.
 
Fatty acid composition and insect resistance in Vigna unguiculata seeds, Piergiovanni, A. R., Della Gatta, C., Ng, N. Q., Singh, B., Singh, S. R. and Perrino, P., in: Journal of the Science of Food and Agriculture, volume 52, pages 47-53, 1990.
 
Collecting germplasm in Zimbabwe, Padulosi, S. and Ng, N. Q., in: Plant Genetic Resources Newsletter, volume 78/79, pages 35-36, 1990.
 
Collecting wild Vigna and Oryza in Tanzania, Padulosi, S. and Ng, N. Q., in: Plant Genetic Resources Newsletter, volume 78/79, pages 39-40, 1990.
 
Wild Vigna species in Africa: their collection and potential utilization, Padulosi, S. and Ng, N. Q., pages 58-77, International Institute of Tropical Agriculture (IITA), 1990.
 
Embryological study of crosses between Vigna unguiculata and V. vexillata, Barone, A. and Ng, N. Q., pages 151-160, International Institute of Tropical Agriculture (IITA), 1990.
 
Recents developments in cowpea germplasm collection, conservation, evaluation and research at the Genetic Resources Unit, Ng, N. Q., pages 13-28, International Institute of Tropical Agriculture (IITA), 1990.
 
Cowpea genetic resources, Ng, N. Q. and Monti, L. M., 1990.
 

1989

Cowpea research at IITA, Singh, S. R., Jackai, L., Singh, B., Ntare, B. R., Rossel, H. W., Thottappilly, G., Ng, N. Q., Hossain, M. A., Cardwell, K., Padulosi, S. and Myers, O., International Institute of Tropical Agriculture (IITA), 1989.
 
Preliminary studies on some ecological characteristics of African deep water rice (Oryza glaberrima Steud.), Inouye, J., Hakoda, H. and Ng, N. Q., in: Japanese Journal of Agriculture, volume 33, number 3, pages 158-163, 1989.
 

1988

Harvesting period of Bambarra groundnut for maximum yield and seed quality in the humid tropics, Goli, A. E. and Ng, N. Q., 1988.
 
The genebank at IITA and its significance for crop improvement in Africa with special reference to cowpea germplasm, edited by Engels, J.M.M., Ng, N. Q., pages 302-321, Plant Genetic Resource Center, 1988.
 

1986

Cowpea Taxonomy, origin and germplasm, Ng, N. Q. and Marechal, R., pages 11-21, 1986.
 

1984

Plant genetic resources conservation facilities at the International Institute of Tropical Agriculture, Ng, N. Q., 1984.
 
Cowpea origin, diversity, taxonomy and germplasm, Ng, N. Q. and Marechal, R., International Institute of Tropical Agriculture (IITA), 1984.
 

1982

Genectic Resources Programme of IITA, Ng, N. Q., in: Plant Genetic Resources Newsletter, volume 49, pages 26-31, 1982.
 
Survey of Plant Genectic Resources in Africa, Ng, N. Q., 1982.
 

Publications as Editor

1991

Crop genetic resources of Africa: vol. I, volume 1, IBPGR; UNEP; Ineternational Institute of Tropical Agriculture (IITA); CNR, 1991.