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Journal Article 1994

Autor: Watanabe, K. Orillo, M. Iwanaga, Masaru Ortiz, R. Freyre, R. Perez, S.

Diploid cultivated species, haploids derived from tetraploid cultivars, and their wildSolanum relatives were used to generate various diploid potato genetic stocks. These stocks have significant value in potato breeding because: 1) genetic diversity in the potato population can be kept variable w...

Enlace original: https://cgspace.cgiar.org/handle/10568/100899

Investigación en Agricultura
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Watanabe, K. ,  Orillo, M. ,  Iwanaga, Masaru ,  Ortiz, R. ,  Freyre, R. ,  Perez, S. ,  [Diploid potato germplasm derived from wild and landrace genetic resources] ,  Diploid potato germplasm derived from wild and landrace genetic resources
Journal Article 1993

Autor: Vuylsteke, D.R. Swennen, R. Ortiz, R.
Enlace original: https://cgspace.cgiar.org/handle/10568/98605

Investigación en Agricultura
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Vuylsteke, D.R. ,  Swennen, R. ,  Ortiz, R. ,  [Registration of 14 improved tropical Musa plantain hybrids with black sigatoka resistance] ,  Registration of 14 improved tropical Musa plantain hybrids with black sigatoka resistance
Journal Article 1997

Autor: Ortiz, R.

Musa cultivars (bananas and plantains) are important crops in the humid tropics of Africa, America and Asia. This paper reports the extent of morphological variation of the Musa germplasm maintained in the gene-bank of the International Institute of Tropical Agriculture in southeastern Nigeria. Q...

Enlace original: https://cgspace.cgiar.org/handle/10568/98635

Investigación en Agricultura
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Ortiz, R. ,  [Morphological variation in Musa germplasm] ,  Morphological variation in Musa germplasm
Journal Article 2000

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

Epidermal and histological characterization of Musa species and cultivars were carried out to investigate the descriptor value of calcium oxalate between groups and subgroups of cultivars. Epidermal peels of the bracts of selected plantain and banana cultivars stained with 0.01% safranin solution...

Enlace original: https://cgspace.cgiar.org/handle/10568/99892

Investigación en Agricultura
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Osuji, J.O. ,  Okoli, B.E. ,  Ortiz, R. ,  [Taxonomic value of calcium oxalate cystals in Musa germplasm] ,  Taxonomic value of calcium oxalate cystals in Musa germplasm
Journal Article 2003-12-15

Autor: Sanginga, Nteranya Dashiell, Kenton E. Diels, J. Vanlauwe, Bernard Lyasse, O. Carsky, R.J. Tarawali, Shirley A. Asafo-Adjei, B. Menkir, A. Schulz, S. Singh, B.B. Chikoye, D. Keatinge, D. Ortiz, R.

Sustainable resource management is the critical agricultural research and development challenge in sub-Saharan Africa. The accumulated knowledge on soil management gathered over the last 10 years, combined with solid crop improvement and plant health research at farmers’ level, has brought us to ...

Enlace original: https://cgspace.cgiar.org/handle/10568/950

Investigación en Agricultura
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Sanginga, Nteranya ,  Dashiell, Kenton E. ,  Diels, J. ,  Vanlauwe, Bernard ,  Lyasse, O. ,  Carsky, R.J. ,  Tarawali, Shirley A. ,  Asafo-Adjei, B. ,  Menkir, A. ,  Schulz, S. ,  Singh, B.B. ,  Chikoye, D. ,  Keatinge, D. ,  Ortiz, R. ,  [Sustainable resource management coupled to resilient germplasm to provide new intensive cereal-grain-legume-livestock systems in the dry savanna.] ,  Sustainable resource management coupled to resilient germplasm to provide new intensive cereal-grain-legume-livestock systems in the dry savanna.
Journal Article 2001

Autor: Ortiz, R.

This volume of Plant Breeding Reviews is dedicated to the memory of Dirk R. Vuylsteke who died tragically in an air crash on January 30, 2000, while actively engaged in his live long passion, the betterment of efforts to fight hunger and poverty in tropical Africa. Dirk was a leading Musa scienti...

Enlace original: https://cgspace.cgiar.org/handle/10568/92666

Investigación en Agricultura
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Ortiz, R. ,  [Dedication: Dirk R. Vuylesteke: Musa scientist and Humanitarian] ,  Dedication: Dirk R. Vuylesteke: Musa scientist and Humanitarian
Journal Article 2002

Autor: Upadhyaya, H. Bramel-Cox, P.J. Ortiz, R. Singh, S.

Peanut (Arachis hypogaea L.) breeding programs with a goal of rapid cultivar development have used mainly elite breeding lines and cultivars, which has resulted in the development of breeding materials with a narrow genetic base. Utilization of exotic germplasm resources in breeding programs is n...

Enlace original: https://cgspace.cgiar.org/handle/10568/92742

Investigación en Agricultura
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Upadhyaya, H. ,  Bramel-Cox, P.J. ,  Ortiz, R. ,  Singh, S. ,  [Developing a mini core of peanut for utilization of genetic resources] ,  Developing a mini core of peanut for utilization of genetic resources
Journal Article 2018

Autor: Batte, M. Mukiibi, A. Swennen, R.L. Uwimana, B. Pocasangre, L. Hovmalm, H.P. Geleta, M. Ortiz, R.

Morphological traits are commonly used for characterizing plant genetic resources. Germplasm characterization should be based on distinctly identifiable, stable and heritable traits that are expressed consistently and are easy to distinguish by the human eye. Characterization and documentation of...

Enlace original: https://cgspace.cgiar.org/handle/10568/89020

Investigación en Agricultura
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Batte, M. ,  Mukiibi, A. ,  Swennen, R.L. ,  Uwimana, B. ,  Pocasangre, L. ,  Hovmalm, H.P. ,  Geleta, M. ,  Ortiz, R. ,  [Suitability of existing Musa morphological descriptors to characterize East African highland ‘matooke’ bananas] ,  Suitability of existing Musa morphological descriptors to characterize East African highland ‘matooke’ bananas
Journal Article 1997

Autor: Ortiz, R. Langie, H.

Plantains (Musa spp., AAB group) are an important food crop in the humid lowlands of sub-Saharan Africa. Understanding the relationships between growth characteristics and yield potential (t ha-1 yr-1) would be useful in developing an ideotype to guide breeding efforts for this crop. We investiga...

Enlace original: https://cgspace.cgiar.org/handle/10568/95940

Investigación en Agricultura
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Ortiz, R. ,  Langie, H. ,  [Path analysis and ideotypes for plantain breeding] ,  Path analysis and ideotypes for plantain breeding

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