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Journal Article 1997

Autor: Ortiz, R. Crouch, J.H.

Plantain-derived tetraploid hybrids are routinely crossed In Musa breeding programmes with diploid Musa accessions for the efficient generation of putative triploid hybrid seed. However, natural open pollination of these same tetraploid hybrids also consistently generates viable seed. The mean ge...

Enlace original: https://cgspace.cgiar.org/handle/10568/98634

Investigación en Agricultura
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Ortiz, R. ,  Crouch, J.H. ,  [The efficiency of natural and artificial pollinators in plantain (Musa spp. AAB group) hybridisation and seed production] ,  The efficiency of natural and artificial pollinators in plantain (Musa spp. AAB group) hybridisation and seed production
Journal Article 1997

Autor: Ortiz, R. Austin, P.D. Vuylsteke, D.R.
Enlace original: https://cgspace.cgiar.org/handle/10568/98659

Investigación en Agricultura
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Ortiz, R. ,  Austin, P.D. ,  Vuylsteke, D.R. ,  [IITA High Rainfall Station: twenty years of research for sustainable agriculture in the West African humid forest] ,  IITA High Rainfall Station: twenty years of research for sustainable agriculture in the West African humid forest
Journal Article 1997

Autor: Osuji, J.O. Okoli, B.E. Vuylsteke, D.R. Ortiz, R.

Plantains and bananas (Musa spp. L.) are inter- or intraspecific triploid hybrids derived from crosses between M. acuminata Colla. (A genome) and M. balbisiana Colla. (B genome). Cultivars have been assigned to different taxonomic groups (AA, BB, AAA, AAB, ABB, etc.) based on morphological qualit...

Enlace original: https://cgspace.cgiar.org/handle/10568/98675

Investigación en Agricultura
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Osuji, J.O. ,  Okoli, B.E. ,  Vuylsteke, D.R. ,  Ortiz, R. ,  [Multivariate pattern of quantitative trait variation in triploid banana and plantain cultivars] ,  Multivariate pattern of quantitative trait variation in triploid banana and plantain cultivars
Journal Article 1997

Autor: Ortiz, R. Vuylsteke, D.R.

Plantain and banana (Musa spp. L.) polyploid hybrids have been obtained after interspecific hybridisation and ploidy manipulations (i.e., interploidy crosses). The identification of promising hybrids for cultivar release requires their field testing to assess agronomic performance. The potential ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98707

Investigación en Agricultura
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Ortiz, R. ,  Vuylsteke, D.R. ,  [Improved polyploid Musa germplasm developed by IITA through ploidy manipulations] ,  Improved polyploid Musa germplasm developed by IITA through ploidy manipulations
Journal Article 1997

Autor: Ortiz, R.

Sexual polyploidization explains the formation of most polyploid crop species and provides means for their genetic improvement. This paper reports the occurrence and inheritance of 2 n pollen in diploid and polyploid Musa . Pollen samples of male fertile accessions available in the field gene ban...

Enlace original: https://cgspace.cgiar.org/handle/10568/95951

Investigación en Agricultura
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Ortiz, R. ,  [Occurence and inheritance of 2n pollen in Musa] ,  Occurence and inheritance of 2n pollen in Musa
Journal Article 1997

Autor: Ortiz, R. Craenen, K. Vuylsteke, D.R.

Plantains (Musa spp. AAB group) are starchy bananas widely grown in Africa and tropical America by small landholders. Genetic analysis of the plantain genome is difficult due to its triploidy and high sterility. Ploidy manipulations (scaling up and down the number of chromosomes) and interspecifi...

Enlace original: https://cgspace.cgiar.org/handle/10568/95950

Investigación en Agricultura
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Ortiz, R. ,  Craenen, K. ,  Vuylsteke, D.R. ,  [Ploidy manipulations and genetic markers as tools for analysis of quantitative trait variation in progeny derived from triploid plantains] ,  Ploidy manipulations and genetic markers as tools for analysis of quantitative trait variation in progeny derived from triploid plantains
Journal Article 2003

Autor: Dixon, Alfred G.O. Bandyopadhyay, Ranajit Coyne, D.L. Ferguson, M. Ferris, R.S.B. Hanna, R. Hughes, J. Ingelbrecht, I. Legg, J.P. Mahungu, N.M. Manyong, Victor M. Mowbray, D. Neuenschwander, P. Whyte, J. Hartmann, P. Ortiz, R.

Cassava(Manihot esculenta), a root crop originating in Tropical America, has been called Africa’s food insurance but vital as that is, it has the potential to be much more. Already, cassava provides more than half of the dietary calories for over 200 million people in sub-Saharan Africa (about ha...

Enlace original: https://cgspace.cgiar.org/handle/10568/96342

Investigación en Agricultura
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Dixon, Alfred G.O. ,  Bandyopadhyay, Ranajit ,  Coyne, D.L. ,  Ferguson, M. ,  Ferris, R.S.B. ,  Hanna, R. ,  Hughes, J. ,  Ingelbrecht, I. ,  Legg, J.P. ,  Mahungu, N.M. ,  Manyong, Victor M. ,  Mowbray, D. ,  Neuenschwander, P. ,  Whyte, J. ,  Hartmann, P. ,  Ortiz, R. ,  [Cassava: from poor farmers crop to pacesetter of African rural development] ,  Cassava: from poor farmers crop to pacesetter of African rural development
Journal Article 2008

Autor: Reddy, B.V.S. Ramesh, S Kumar, A. Wani, S.P. Ortiz, R. Sreedevi, TK

Soaring prices of fossil fuels, geo-political issues and environmental pollution associated with fossil fuel use has led to worldwide interest in the production and use of bio-fuels. Both the developed and developing countries have developed a range of policies to encourage production of combusti...

Enlace original: https://cgspace.cgiar.org/handle/10568/43227

Investigación en Agricultura
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Reddy, B.V.S. ,  Ramesh, S ,  Kumar, A. ,  Wani, S.P. ,  Ortiz, R. ,  Sreedevi, TK ,  [Bio-fuel crops research for energy security and rural development in developing countries] ,  Bio-fuel crops research for energy security and rural development in developing countries

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