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Journal Article 2007

Autor: Egesi, Chiedozie N. Ogbe, F.O. Akoroda, M.O. Ilona, P. Dixon, A.

Cassava mosaic disease (CMD) caused by a group of begomoviruses and transmitted by whitefly vector is a serious disease in all the cassava-growing areas of Africa. Field evaluation with replication was conducted in 2003 and 2004 in three agroecologies in Nigeria to study the response of 40 cassav...

Enlace original: https://cgspace.cgiar.org/handle/10568/92162

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Ogbe, F.O. ,  Akoroda, M.O. ,  Ilona, P. ,  Dixon, A. ,  [Resistance profile of improved cassava germplasm to cassava mosaic disease in Nigeria] ,  Resistance profile of improved cassava germplasm to cassava mosaic disease in Nigeria
Journal Article 2011

Autor: Okechukwu, R.U. Kehinde, I.A. Afolabi, C. James, B. Egesi, Chiedozie N.

Eleven improved varieties project were multiplied in 2009 by primary producers associated with the USAID/ IITA project Unleashing the Power of Cassava in Africa in response to the Food Price Crisis (UPoCA) in seven States of Nigeria. In 2010, stems from these multiplication farms were distributed...

Enlace original: https://cgspace.cgiar.org/handle/10568/81157

Investigación en Agricultura
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Okechukwu, R.U. ,  Kehinde, I.A. ,  Afolabi, C. ,  James, B. ,  Egesi, Chiedozie N. ,  [Distribution of improved varieties of cassava and potential impact on root yield and disease reduction in Nigeria] ,  Distribution of improved varieties of cassava and potential impact on root yield and disease reduction in Nigeria
Journal Article 2010-03

Autor: Gegios, A. Amthor, R. Maziya-Dixon, B.B. Egesi, Chiedozie N. Mallowa, S. Nungo, R. Gichuki, S. Mbanaso, A. Manary, M.J.

Cassava contains little zinc, iron, and β-carotene, yet it is the primary staple crop of over 250 million Africans. This study used a 24-hour dietary recall to test the hypothesis that among healthy children aged 2–5 years in Nigeria and Kenya, cassava’s contribution to the childrens’ daily diets...

Enlace original: https://cgspace.cgiar.org/handle/10568/88228

Investigación en Agricultura
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Gegios, A. ,  Amthor, R. ,  Maziya-Dixon, B.B. ,  Egesi, Chiedozie N. ,  Mallowa, S. ,  Nungo, R. ,  Gichuki, S. ,  Mbanaso, A. ,  Manary, M.J. ,  [Children consuming cassava as a staple food are at risk for inadequate zinc, iron, and vitamin A intake] ,  Children consuming cassava as a staple food are at risk for inadequate zinc, iron, and vitamin A intake
Journal Article 2005

Autor: Egesi, Chiedozie N. Ogunyemi, S. Asiedu, Robert

A randomised complete block experiment was conducted in the 1998 and 1999 cropping seasons in five major yam growing areas in the yam belt of Nigeria to evaluate the performance and yield stability of six genotypes of water yarn (Dioscorea alata L). Location, genotype and their interaction effect...

Enlace original: https://cgspace.cgiar.org/handle/10568/91791

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Ogunyemi, S. ,  Asiedu, Robert ,  [Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria] ,  Genotype x environment interaction in water yam (Dioscorea alata) yield trials in five yamgrowing sites in Nigeria
Journal Article 2007

Autor: Egesi, Chiedozie N. Ilona, P. Ogbe, F.O. Akoroda, M.O. Dixon, A.

The identification of superior genotypes and mega-environments on the basis of multiple traits is a key objective of multi-environment trials in cassava (Manihot esculenta Crantz). The objective of this study was to examine the genetic variation and genotype 3 environment interaction (GEI) effect...

Enlace original: https://cgspace.cgiar.org/handle/10568/92178

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Ilona, P. ,  Ogbe, F.O. ,  Akoroda, M.O. ,  Dixon, A. ,  [Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria] ,  Genetic variation and genotype X environment interaction for yield and other agronomic traits in cassava in Nigeria
Journal Article 2006

Autor: Egesi, Chiedozie N. Asiedu, Robert Ude, G. Ogunyemi, S. Egunjobi, J.K.

Amplified fragment length polymorphism (AFLP) markers were employed to assess intraspecific variability in water yam (Dioscorea alata L.). Fifty-three accessions of diverse geographic origins in West and Central Africa (Benin, Côte d'Ivoire, Ghana, Nigeria and Chad) and Puerto Rico were analysed ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91764

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Asiedu, Robert ,  Ude, G. ,  Ogunyemi, S. ,  Egunjobi, J.K. ,  [AFLP marker diversity in water yam (Dioscorea alata L.)] ,  AFLP marker diversity in water yam (Dioscorea alata L.)
Journal Article 2007

Autor: Egesi, Chiedozie N. Onyeka, T.J. Asiedu, Robert

Anthracnose and virus diseases exert devastating impacts on yam production in many tropical regions of the world where the crop contributes to food security and income generation. The complexities in their epidemiology necessitate the use of integrated approaches in their management. Six genotype...

Enlace original: https://cgspace.cgiar.org/handle/10568/91458

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Onyeka, T.J. ,  Asiedu, Robert ,  [Severity of anthracnose and virus diseases of water yam (dioscorea alata L.) in NIgeria I: effects of yam genotype and date of planting] ,  Severity of anthracnose and virus diseases of water yam (dioscorea alata L.) in NIgeria I: effects of yam genotype and date of planting
Journal Article 2008

Autor: Baiyeri, K.P. Edibo, G.O. Obi, I.U. Ogbe, F.O. Egesi, Chiedozie N. Eke-Okoro, O.N. Okogbenin, Emmanuel Dixon, Alfred G.O.

Ten new cassava genotypes selected for high yield and tolerance to some biotic stresses were evaluated alongside the local best, Otupam and ‘TMS 30572\' (a widely cultivated hybrid genotype, as an improved check) for two cropping seasons with a view to obtaining suitable genotype(s) that could be...

Enlace original: https://cgspace.cgiar.org/handle/10568/90830

Investigación en Agricultura
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Baiyeri, K.P. ,  Edibo, G.O. ,  Obi, I.U. ,  Ogbe, F.O. ,  Egesi, Chiedozie N. ,  Eke-Okoro, O.N. ,  Okogbenin, Emmanuel ,  Dixon, Alfred G.O. ,  [Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern Nigeria] ,  Growth, yield and disease responses of 12 cassava genotypes evaluated for two cropping seasons in a derived savannah zone of southeastern Nigeria
Journal Article 2007

Autor: Egesi, Chiedozie N. Odu, B. Ogunyemi, S. Asiedu, Robert Hughes, J.

Use of genetic resistance is the most practical and economic way to manage major diseases of yams. In a search for sources of resistance, 40 water yam (Dioscorea alata L.) accessions from Benin, Ghana, Nigeria and Puerto Rico were screened under natural disease infection conditions in Ibadan, Nig...

Enlace original: https://cgspace.cgiar.org/handle/10568/92213

Investigación en Agricultura
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Egesi, Chiedozie N. ,  Odu, B. ,  Ogunyemi, S. ,  Asiedu, Robert ,  Hughes, J. ,  [Evaluation of water yam (Dioscorea alata L.) germplasm for reaction to yam anthracnose and virus diseases and their effect on yield] ,  Evaluation of water yam (Dioscorea alata L.) germplasm for reaction to yam anthracnose and virus diseases and their effect on yield
Journal Article 2019

Autor: Ikeogu, U.N. Akdemir, D. Wolfe, M.D. Okeke, U.G. Amaefula, C. Jannink, Jean-Luc Egesi, Chiedozie N.

Random forests (RF) was used to correlate spectral responses to known wet chemistry carotenoid concentrations including total carotenoid content (TCC), all-trans β-carotene (ATBC), violaxanthin (VIO), lutein (LUT), 15-cis beta-carotene (15CBC), 13-cis beta-carotene (13CBC), alpha-carotene (AC), 9...

Enlace original: https://cgspace.cgiar.org/handle/10568/106243

Investigación en Agricultura
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Ikeogu, U.N. ,  Akdemir, D. ,  Wolfe, M.D. ,  Okeke, U.G. ,  Amaefula, C. ,  Jannink, Jean-Luc ,  Egesi, Chiedozie N. ,  [Genetic correlation, genome-wide association and genomic prediction of portable NIRS predicted carotenoids in cassava roots] ,  Genetic correlation, genome-wide association and genomic prediction of portable NIRS predicted carotenoids in cassava roots

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