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Journal Article 1994

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

Secondary triploids were produced by crossing primary tetraploids with selected diploid partners and the parthenocarpic banana (Galeo). Comparisons between secondary tetraploids and secondary triploids showed that the secondary tetraploids generally had lower yields than secondary triploids. The ...

Enlace original: https://cgspace.cgiar.org/handle/10568/100900

Investigación en Agricultura
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Ortiz, R. ,  Vuylsteke, D.R. ,  [Preliminary evaluation of secondary Musa polyploids at IITA breeding station] ,  Preliminary evaluation of secondary Musa polyploids at IITA breeding station
Journal Article 2016-04

Autor: Andrade, M.I. Naico, A. Ricardo, J. Eyzaguirre, R. Makunde, G.S. Ortiz, R. Gruneberg, W.J.
Enlace original: https://cgspace.cgiar.org/handle/10568/72958

Investigación en Agricultura
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Andrade, M.I. ,  Naico, A. ,  Ricardo, J. ,  Eyzaguirre, R. ,  Makunde, G.S. ,  Ortiz, R. ,  Gruneberg, W.J. ,  [Genotype x environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique.] ,  Genotype x environment interaction and selection for drought adaptation in sweetpotato (Ipomoea batatas [L.] Lam.) in Mozambique.
Journal Article 1995

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

A multilocational evaluation trial comprising 18 Musa genotypes was carried out from 1991to1994 in three respective locations in Humid Forest (Onne, Nigeria and M' Balmayo, Cameroon) and the Forest- Savanna Transition (Ibadan, Nigeria) zones of West and Central Africa.

Une essai multilocal comprenant 18 genetype de Musa a ete counduit de 1991 a 1994 dans 3 sites representatives dan la foret humide (Onne, Nigeria and M'Balmayo, cameroun) et dans la zone de transition Foret-Savanne (Ibadan, Nigeria) en Afrique de l'Ouest et Centrale.

Enlace original: https://cgspace.cgiar.org/handle/10568/97332

Investigación en Agricultura
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Ortiz, R. ,  Vuylsteke, D.R. ,  Cauwer, I. de ,  [Genotype-by-environment interaction and phenotypic stability of Musa gemplasm in West and Central Africa] ,  Genotype-by-environment interaction and phenotypic stability of Musa gemplasm in West and Central Africa
Journal Article 1996

Autor: Craenen, K. Ortiz, R.

Plantain (Musa spp., AAB group) cultivation is threatened by black sigatoka, an airborne fungal (Mycosphaerella jijiensis Morelet) leaf spot disease. Several traits in plantains and bananas are mainly affected by major genes. The host resistance response to black sigatoka is under the control of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101044

Investigación en Agricultura
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Craenen, K. ,  Ortiz, R. ,  [Effect of the black sigatoka resistance locus bs1 and ploidy level on fruit and bunch traits of plantain-banana hybrids] ,  Effect of the black sigatoka resistance locus bs1 and ploidy level on fruit and bunch traits of plantain-banana hybrids
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
Enlace permanente
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
Journal Article 1994

Autor: Ortiz, R. Izquierdo, J.

The environment substantially affects the performance of tomato (Lycopersicon esculentum Mill.) genotypes in Latin America and the Caribbean (LAC). Therefore, stability analysis can be used to select stable, high-yielding genotypes. Nine open-pollinated and six hybrid tomato genotypes and the mos...

Enlace original: https://cgspace.cgiar.org/handle/10568/100929

Investigación en Agricultura
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Ortiz, R. ,  Izquierdo, J. ,  [Yield stability of hybrid and open pollinated tomato cultivars in Latin America and Caribbean] ,  Yield stability of hybrid and open pollinated tomato cultivars in Latin America and Caribbean
Journal Article 1995

Autor: Craenen, K. Ortiz, R.

Plantain (Musa spp., AAB group) cultivation is threatened by black sigatoka, an airborne fungal (Mycosphaerella fijiensis Morelet) leaf spot disease. Several traits in plantains and bananas are mainly affected by major genes. The host resistance response to black sigatoka is under the control of ...

Enlace original: https://cgspace.cgiar.org/handle/10568/101097

Investigación en Agricultura
Enlace permanente
Craenen, K. ,  Ortiz, R. ,  [Effect of the black sigatoka resistance gene bs1 and ploidy level in fruit and bunch traits of plantain banana hybrids] ,  Effect of the black sigatoka resistance gene bs1 and ploidy level in fruit and bunch traits of plantain banana hybrids
Journal Article 1995

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

Plantains (Musa spp., AAB group) are an important food crop and an integral component of the farming systems in the lowland humid forest zone of West and Central Africa. A group of 24 plantain cultivars, representing the major variability in West Africa, was evaluated for nine quantitative charac...

Enlace original: https://cgspace.cgiar.org/handle/10568/101088

Investigación en Agricultura
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Swennen, R. ,  Vuylsteke, D.R. ,  Ortiz, R. ,  [Phenotypic diversity and pattern of variation in West African plantains (Musa spp. AAB group)] ,  Phenotypic diversity and pattern of variation in West African plantains (Musa spp. AAB group)

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