Vol. 10 No. 2 (2004)
Articles

Flavonoids, chalcones and phenyl-propanoids in apple and pear flowers

Published May 10, 2004
https://doi.org/10.31421/IJHS/10/2/459
Authors
Gy. Horváth
University of Pécs, Faculty of Natural Sciences, Institute of Biology, Dept. of Botany 7624 Pécs, Ifjúság útja 6., Hungary
, A. Farkas
University of Pécs, Faculty of Natural Sciences, Institute of Biology, Dept. of Botany 7624 Pécs, Ifjúság útja 6., Hungary
, Gy. L. Szabó
University of Pécs, Faculty of Natural Sciences, Institute of Biology, Dept. of Botany 7624 Pécs, Ifjúság útja 6., Hungary
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Keywords
apple pear Erwinia amylovora phloretin chlorogenic acid phytoalexin thin layer chromatography
How to Cite
Selected stlye: APA
Horváth, G., Farkas, A., & Szabó, G. L. (2004). Flavonoids, chalcones and phenyl-propanoids in apple and pear flowers. International Journal of Horticultural Science, 10(2), 35–38. https://doi.org/10.31421/IJHS/10/2/459
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Dates
Published date: 2004-05-10
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Abstract

The presence of phloretin-glycosides in the hypanthium and pistil of apple and pear flowers can be verified. Thin layer chromatography is a reliable method for detecting phloretin, gained by acidic hydrolysis. The dominance of phloretin was equally characteristic for flowers in apple (`Sampion', 'Freedom') and pear (Tem-re Bosc', 'Conference') cultivars treated with various bioregulators (Biomit, Bion 50WG, Regalis), no significant difference could be found visually as compared to control samples. Chlorogenic acid and caffeic acid was detected in all apple and pear samples, rutin was present only in pear, and hyperoside was found only in a few apple samples.

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