Comparison of characteristics of bananas (Musa sp.) from the somaclone CIEN BTA-03 and its parental clone Williams

Issue		Fruits Volume 59, Number 4, July-August 2004


Page(s)		257 - 263
DOI		10.1051/fruits:2004024

Fruits 59 (2004) 257-263
DOI: 10.1051/fruits:2004024

Comparison of characteristics of bananas (Musa sp.) from the somaclone CIEN BTA-03 and its parental clone Williams

Unai Emaldi^a, Iselen Trujillo^b and Eva de García^c

^a Instituto de Ciencia y Tecnología de Alimentos, Facultad de Ciencias, Universidad Central de Venezuela, Apartado 47114, Caracas 1041A, Venezuela
^b Centro de Estudios de Agroecología Tropical, Instituto de Estudios Científicos y Tecnológicos, Universidad Nacional Experimental "Simón Rodríguez", Apartado 47925, Caracas 1010, Venezuela
^c Centro de Botánica Tropical, Instituto de Biología Experimental, Facultad de Ciencias, Universidad Central de Venezuela, Apartado 47114, Caracas 1041A, Venezuela

(Received 5 April 2003 Accepted 1 March 2004)

Abstract - Introduction. Banana plants (Musa sp.) face problems caused by diseases such as Yellow Sigatoka (Mycosphaerella musicola), which is responsible for significant economic losses. Through micropropagation techniques, a somaclone variety called CIEN BTA-03 resistant to this disease was obtained. The purpose of this study was to compare fruits of somaclone CIEN BTA-03 and its parental clone Williams. Materials and methods. Fruits from both clones were studied, determining shape, weight, dimensions, proportions, pulp viscosity and consistency, total solids, soluble solids, pH, titratable acidity, sugars, ash, total phenolic content and crude fiber, and analyzing their color, odor and taste. Results and discussion. Clones differed in shape, weight and [pulp/peel] ratio. Pulps also differed in viscosity, pH, and soluble solids, sugars and phenolic compound contents. Differences between the two clones favored clone CIEN BTA-03, since it was better ranked for the color, odor and taste characteristics. Conclusion. Despite being resistant to Yellow Sigatoka, somaclone CIEN BTA-03 shows better sensory characteristics than its parental clone Williams.

Résumé - Introduction. La culture du bananier (Musa sp.) doit faire face à divers problèmes dont certaines maladies comme la Sigatoka jaune (Mycosphaerella musicola). Cette maladie entraîne des pertes économiques considérables. À l'aide de techniques de micropropagation, une variété de bananier somaclonale a été obtenue. Cette variété nommée CIEN BTA-03 est résistante à la Sigatoka jaune. Notre étude a cherché à comparer les fruits du somaclone CIEN BTA-03 et de son clone parental Williams. Matériel et méthodes. Les fruits des deux clones ont été caractérisés selon leur morphologie et composition, dont leurs forme, poids, dimensions, proportions, viscosité de la pulpe et consistance, contenu en solides totaux, solides solubles et sucres, pH, acidité totale, cendres, composition phénolique totale et en fibre brute, ainsi que selon les caractéristiques organoleptiques telles que la couleur, l'odeur et le goût. Résultats et discussion. Les clones étudiés ont présenté des différences de forme, poids, ainsi que de rapport [pulpe/peau]. D'autre part, les pulpes se sont différenciées par leur viscosité, pH, solides solubles, contenu de sucres et composition phénolique totale. Les différences trouvées entre les deux clones étudiés nous permettent d'établir que le clone CIEN BTA-03 possède des caractéristiques favorables de couleur, odeur et goût. Conclusion. Outre le fait d'être résistant à la Sigatoka jaune, le somaclone CIEN BTA-03 a de meilleures caractéristiques sensorielles que son parent Williams.

Key words: Venezuela / Musa / Mycosphaerella musicola / variety trials / agronomic characters / chemical composition / organoleptic properties

Mots clés : Venezuela / Musa / Mycosphaerella musicola / essai de variété / caractère agronomique / composition chimique / propriété organoleptique

Corresponding author: Unai Emaldi uemaldi@strix.ciens.ucv.ve

© CIRAD, EDP Sciences 2004

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