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Caracterizacion nutricional del grano de 50 accesiones de maiz Cubano

Author: Martinez, M.
Author: Palacios-Rojas, N.
Author: Ortiz, R.
Year: 2009
ISSN: 0258-5936
dc.identifier.other: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0258-59362009000200013
URI: http://hdl.handle.net/10883/3201
Abstract: A nutritional quality analysis was performed to 50 yellow maize accessions collected in some farms from three regions of Cuba (western, center and east). Thus, the following characters were tested: ash, oil, total sugar, nitrogen, lysine and triptophan contents (%), at the International Breeding Center of Maize and Wheat (CIMMYT) in Mexico. As a result, standard values of ash, oil, sugar and lysine were obtained; however, with regard to sugar content, three accessions were notable. Concerning triptophan content, 76 % accessions have shown relatively high values, even when compared to some high-quality protein maize (QPM), which explains that 74 % of the overall population evaluated has a relatively high quality index surpassing a standard variety used as control, and even seven accessions overcome QPM evaluative reports in another region. This is an encouraging result, since it permits to draw up several strategies for improving the nutritional quality of some accessions, to be further applied to feed target populations and animals of interest. Also, significant correlations were recorded at the population studied. On the other hand, accessions were scattered when a Main Component analysis was made, so that accessions splitted up from others according to the characters having a decisive influence on maize nutritional quality.
Abstract: A nutritional quality analysis was performed to 50 yellow maize accessions collected in some farms from three regions of Cuba (western, center and east). Thus, the following characters were tested: ash, oil, total sugar, nitrogen, lysine and triptophan contents (%), at the International Breeding Center of Maize and Wheat (CIMMYT) in Mexico. As a result,standard values of ash, oil, sugar and lysine were obtained;however, with regard to sugar content, three accessions were notable. Concerning triptophan content, 76 % accessions have shown relatively high values, even when compared to some high-quality protein maize (QPM), which explains that 74 % of the overall population evaluated has a relatively high quality index surpassing a standard variety used as control, and even seven accessions overcome QPM evaluative reports in another region. This is an encouraging result, since it permits to draw up several strategies for improving the nutritional quality of some accessions, to be further applied to feed target populations and animals of interest. Also, significant correlations were recorded at the population studied. On the other hand, accessions were scattered when a Main Component analysis was made, so that accessions splitted up from others according to the characters having a decisive influence on maize nutritional quality.
Language: Spanish
Publisher: Instituto Nacional de Ciencias Agricolas
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Country: Cuba
Region: Central America
Pages: 80-88
Journal issue: 2
Journal: Cultivos Tropicales
Journal volume: 30
Keywords: Maize
Keywords: Quality
Keywords: Nutritive value
Keywords: triptophan
Keywords: Lysine
Publisher URI: http://redalyc.uaemex.mx/redalyc/src/inicio/ArtPdfRed.jsp?iCve=193215047010
Audicence: Researchers
Country of Focus: CUBA
Country of Focus: MEXICO


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  • Maize
    Maize breeding, phytopathology, entomology, physiology, quality, and biotech

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