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Journal Article 2007

Autor: Mahalakshmi, V. Ng, Q. Atalobhor, J. Ogunsola, D. Lawson, M. Ortiz, R.

Yams (Dioscorea spp.) are important crops in some West African locations. The West African yam collections held at the IITA were characterized using the standard descriptor list for this crop (IPGRI/IITA. 1997. Descriptors for yam (Dioscorea spp.). International Institute of Tropical Agriculture,...

Enlace original: https://cgspace.cgiar.org/handle/10568/91461

Investigación en Agricultura
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Mahalakshmi, V. ,  Ng, Q. ,  Atalobhor, J. ,  Ogunsola, D. ,  Lawson, M. ,  Ortiz, R. ,  [Development of a West African yam Dioscorea spp. core collection] ,  Development of a West African yam Dioscorea spp. core collection
Journal Article 2007

Autor: Efombagn, M.I.B. Nyassé, S. Sounigo, O. Kolesnikova-Allen, M. Eskes, A.B.

As part of a participatory selection programme, promising individual trees were selected in 2004 in cocoa farms of southern and western Cameroon regions for yield and for low incidence of Phytophthora pod rot (Ppr) caused by Phytophthora megakarya. The aim of this study was to compare the levels ...

Enlace original: https://cgspace.cgiar.org/handle/10568/92192

Investigación en Agricultura
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Efombagn, M.I.B. ,  Nyassé, S. ,  Sounigo, O. ,  Kolesnikova-Allen, M. ,  Eskes, A.B. ,  [Participatory cocoa (Theobroma cacao) selection in Cameroon: Phytophthora pod rot resistant accessions identified in farmers fields] ,  Participatory cocoa (Theobroma cacao) selection in Cameroon: Phytophthora pod rot resistant accessions identified in farmers fields
Journal Article 1999

Autor: Ferris, R.S.B. Ortiz, R. Vuylsteke, D.R.

Triploid plantains (Musa AAB) are among the most important horticultural crops of West Africa. However, all landraces are susceptible to black Sigatoka, a fungal disease caused by Mycosphaerella fijiensis, Morelet. To ameliorate the spread of this epidemic, exotic triploid cooking bananas (ABB), ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98054

Investigación en Agricultura
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Ferris, R.S.B. ,  Ortiz, R. ,  Vuylsteke, D.R. ,  [Fruit quality evaluation of plantains, plantain hybrids, and cooking bananas] ,  Fruit quality evaluation of plantains, plantain hybrids, and cooking bananas
Journal Article 2006

Autor: Efombagn, M.I.B. Sounigo, O. Nyassé, S. Dauleux, M.M. Cilas, Christian Eskes, M.A. Allen, K.

The range of polymorphism of about 194 cocoa accessions collected in farms in Southern Cameroon during field surveys and 71 Trinitario and Upper Amazon clones available in genebanks on-station was assessed using 13 SSR markers. The gene diversity, genetic differentiation and genetic similarities ...

Enlace original: https://cgspace.cgiar.org/handle/10568/91407

Investigación en Agricultura
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Efombagn, M.I.B. ,  Sounigo, O. ,  Nyassé, S. ,  Dauleux, M.M. ,  Cilas, Christian ,  Eskes, M.A. ,  Allen, K. ,  [Genetic diversity in cocoa germplasm of southern Cameroon revealed by simple sequences repeat (SSRS) markers] ,  Genetic diversity in cocoa germplasm of southern Cameroon revealed by simple sequences repeat (SSRS) markers
Journal Article 2003

Autor: Ortiz, R. Golmirzaie, A.M.

The aim of this research was to determine the genetic variation available in some important characteristics for true potato seed breeding in intermediate and advanced stages of a breeding population developed by the Centro Internacional de la Papa. A factorial mating design was used to calculate ...

Enlace original: https://cgspace.cgiar.org/handle/10568/97986

Investigación en Agricultura
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Ortiz, R. ,  Golmirzaie, A.M. ,  [Genetic parameters for agronomic characteristics: II: intermediate and advanced stages in a Open Access potato seed breeding population] ,  Genetic parameters for agronomic characteristics: II: intermediate and advanced stages in a Open Access potato seed breeding population
Journal Article 2003

Autor: Ortiz, R. Golmirzaie, A.M.

The original variation in the source population as well as the selection method may influence the genetic variation in further cycles of genetic improvement. Therefore, the objectives of this research were to determine genetic parameters (variance components and heritability) in source and interm...

Enlace original: https://cgspace.cgiar.org/handle/10568/97985

Investigación en Agricultura
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Ortiz, R. ,  Golmirzaie, A.M. ,  [Genetic parameters for agronomic characteristics: 1: early and intermediate breeding populations of Open Access potato seed] ,  Genetic parameters for agronomic characteristics: 1: early and intermediate breeding populations of Open Access potato seed
Journal Article 2003

Autor: Ortiz, R.

Cowpea is the most important product in African dryland agriculture. Its protein-rich grains are the main product of the crop, which are commonly eaten in different forms by rural and urban peoples. African farmers growing cowpea in their fields often harvest low yields because many biotic and ab...

Enlace original: https://cgspace.cgiar.org/handle/10568/97984

Investigación en Agricultura
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Ortiz, R. ,  [An international public partnership for genetic enhancement of cowpea using a holistic approach to biotechnology] ,  An international public partnership for genetic enhancement of cowpea using a holistic approach to biotechnology
Journal Article 2017

Autor: Guild, Georgia E. Paltridge, Nicholas G. Andersson, Meike S. Stangoulis, James C.R.

Background and aims Biofortification breeding programs have the need for rapid and accurate screening methods to identify nutrient dense genotypes. This study explores the use of energy dispersive x-ray fluorescence (EDXRF) for the rapid screening of iron (Fe) and zinc (Zn) concentration in thre...

Enlace original: https://cgspace.cgiar.org/handle/10568/83153

Investigación en Agricultura
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Guild, Georgia E. ,  Paltridge, Nicholas G. ,  Andersson, Meike S. ,  Stangoulis, James C.R. ,  [An energy-dispersive X-ray fluorescence method for analysing Fe and Zn in common bean, maize and cowpea biofortification programs] ,  An energy-dispersive X-ray fluorescence method for analysing Fe and Zn in common bean, maize and cowpea biofortification programs
Journal Article 1988

Autor: Jackai, L.E.N. Singh, S.

As research on food crops intensifies in the tropics, the spotlight is being increasingly focused on the development of varieties with resistance to pests and diseases. Much of the time, money and patience needed to conduct research on host plant resistance (HpR) is spent on the development of me...

Enlace original: https://cgspace.cgiar.org/handle/10568/98633

Investigación en Agricultura
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Jackai, L.E.N. ,  Singh, S. ,  [Screening techniques for host plant resistance to cowpea insect pests] ,  Screening techniques for host plant resistance to cowpea insect pests
Journal Article 1997

Autor: Ortiz, R.

Several primary tetraploids with desirable attributes have been selected by Musa breeding programs. Diploid parental stocks have become available for further genetic improvement of the Musa genome. Hence, new genome manipulations should be tested before they become routine in breeding programs. T...

Enlace original: https://cgspace.cgiar.org/handle/10568/98644

Investigación en Agricultura
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Ortiz, R. ,  [Secondary polyploids, heterosis and evolutionary crop breeding for further improvement of the plantain and banana (Musa spp. L) genome] ,  Secondary polyploids, heterosis and evolutionary crop breeding for further improvement of the plantain and banana (Musa spp. L) genome

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