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Journal Article 2019

Autor: Nyine, M. Uwimana, B. Akech, V. Brown, A. Ortiz, R. Doležel, Jaroslav Lorenzen, J. Swennen, R.

Bunch weight increase is one of the major objectives of banana improvement programs, but little is known about the loci controlling bunch weight and its component traits. Here we report for the first time some genomic loci associated with bunch weight and its component traits in banana as reveale...

Enlace original: https://cgspace.cgiar.org/handle/10568/103733

Investigación en Agricultura
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Nyine, M. ,  Uwimana, B. ,  Akech, V. ,  Brown, A. ,  Ortiz, R. ,  Doležel, Jaroslav ,  Lorenzen, J. ,  Swennen, R. ,  [Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).] ,  Association genetics of bunch weight and its component traits in East African highland banana (Musa spp. AAA group).
Journal Article 1994

Autor: Ekanayake, I.J. Ortiz, R. Vuylsteke, D.R.

Leaf age effects on the leaf conductance to water vapour diffusion of the adaxial and abaxial leaf surfaces were measured in the morning and in the afternoon on 17 different plantain and banana (Musa spp.) genotypes. The irradiance levels increased three-fold while leaf to air vapour pressure def...

Enlace original: https://cgspace.cgiar.org/handle/10568/100892

Investigación en Agricultura
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Ekanayake, I.J. ,  Ortiz, R. ,  Vuylsteke, D.R. ,  [Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site] ,  Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site
Journal Article 1995

Autor: Ekanayake, I.J. Ortiz, R. Vuylsteke, D.R.

Cultivated plantains and bananas (Musa spp.) are important staple crops in the humid forest and midaltitude ecologies of sub-Saharan Africa. Their water requirement is relatively high and they are very sensitive to dry soil conditions, which greatly limits their range of cultivation. While long-t...

Enlace original: https://cgspace.cgiar.org/handle/10568/97333

Investigación en Agricultura
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Ekanayake, I.J. ,  Ortiz, R. ,  Vuylsteke, D.R. ,  [Physiological factors in drought tolerance of various Musa genotype] ,  Physiological factors in drought tolerance of various Musa genotype
Journal Article 1996

Autor: Ortiz, R.

Virus-like symptoms (due to banana streak virus, cucumber mosaic virus, or both) have been observed in plants of Musa hybrids (TMPx) and local landraces included in multilocational trials in sub-Saharan Africa. Virus-like symptom incidence in these multilocational trials was analyzed using the ad...

Enlace original: https://cgspace.cgiar.org/handle/10568/97339

Investigación en Agricultura
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Ortiz, R. ,  [The potential of AMMI analysis for field assessment of Musa genotypes to virus infection] ,  The potential of AMMI analysis for field assessment of Musa genotypes to virus infection
Journal Article 2000

Autor: Dahal, G. Ortiz, R. Tenkouano, A. Hughes, J. Thottappilly, G. Vuylsteke, D.R. Lockhart, B.E.L.

Micropropagated plants of 36 Musa genotypes with diverse genetic backgrounds, including 14 tetraploid plantain (TMPx) and banana (TMBx) hybrids, were evaluated for their response to banana streak badnavirus (BSV) infection under three environments from 1995 to 1997 in Nigeria. The characteristics...

Enlace original: https://cgspace.cgiar.org/handle/10568/92652

Investigación en Agricultura
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Dahal, G. ,  Ortiz, R. ,  Tenkouano, A. ,  Hughes, J. ,  Thottappilly, G. ,  Vuylsteke, D.R. ,  Lockhart, B.E.L. ,  [Relationship between natural occurrence of banana streak badnavirus and symptom expression, relative concentration of viral antigen, and yield characteristics of some micropropagated Musa spp] ,  Relationship between natural occurrence of banana streak badnavirus and symptom expression, relative concentration of viral antigen, and yield characteristics of some micropropagated Musa spp
Journal Article 2000

Autor: Blomme, Guy Ortiz, R.

The root system development of 11 genotypes from six diverse Musa groups was studied in detail at IITA High Rainfall Station (Onne, southeastern Nigeria). Plantain hybrids (TMPx 548-9, TMPx 1658-4) were compared with their maternal French plantain landrace (Obino l' Ewai) and their paternal diplo...

Enlace original: https://cgspace.cgiar.org/handle/10568/92603

Investigación en Agricultura
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Blomme, Guy ,  Ortiz, R. ,  [Preliminary assessment of root systems morphology in Musa] ,  Preliminary assessment of root systems morphology in Musa
Conference Paper 1994

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

Variety improvement of plantain and banana (Musa spp.) is based on genetic diversity, which provides the basis for selection gain. This paper reviews result obtained by the Plantain and Banana Improvement Programme (PBIP) of the International Institute of Tropical Agriculture in the development o...

Enlace original: https://cgspace.cgiar.org/handle/10568/97319

Investigación en Agricultura
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Ortiz, R. ,  Vuylsteke, D.R. ,  Ferris, R. ,  [Development of improved plantain/banana germplasm with black sigatoka resistance] ,  Development of improved plantain/banana germplasm with black sigatoka resistance
Journal Article 1996

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

In vitro-propagated plants of plantain (Musa spp., AAB group) did not manifest consistently superior horticultural performance compared to conventional propagules. Tissue culture plants grew vigorously and taller than sucker-propagated plants, but higher yield was not obtained, probably because o...

Enlace original: https://cgspace.cgiar.org/handle/10568/101013

Investigación en Agricultura
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Vuylsteke, D.R. ,  Ortiz, R. ,  [Field performance of conventional vs in vitro propagules of plantain (Musa spp., AAB group)] ,  Field performance of conventional vs in vitro propagules of plantain (Musa spp., AAB group)
Journal Article 1995

Autor: Cauwer, I. de Ortiz, R. Vuylsteke, D.R.

A multilocational evaluation trial comprising 18 Musa genotypes was carried out from 1991 to 1994 in three representative locations in the humid forest (Onne, Nigeria and M'Balmayo, Cameroon) and the Forest-savanna Transstion (Ibadan, Nigeria) Zones of West and Central Africa. The main objective ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101094

Investigación en Agricultura
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Cauwer, I. de ,  Ortiz, R. ,  Vuylsteke, D.R. ,  [Genotype by environment interaction in Musa germplasm revealed by multisite evaluation in subSaharan Africa] ,  Genotype by environment interaction in Musa germplasm revealed by multisite evaluation in subSaharan Africa
Journal Article 1994

Autor: Ortiz, R. Iwanaga, Masaru Peloquin, S.J.

The use of ploidy manipulations in potato breeding has been successfully applied by breeders at the International Potato Center (CIP) as a tool for germplasm enhancement and for the introduction of desirable genes of wild species into the cultivated gene pool. This methodology consists in reducin...

Enlace original: https://cgspace.cgiar.org/handle/10568/100920

Investigación en Agricultura
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Ortiz, R. ,  Iwanaga, Masaru ,  Peloquin, S.J. ,  [Breeding potatoes for developing countries using wild tuber bearing Solanum spp. and ploidy manipulations] ,  Breeding potatoes for developing countries using wild tuber bearing Solanum spp. and ploidy manipulations

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