Hort. Sci. (Prague), 2006, 33(3):108-113 | DOI: 10.17221/3747-HORTSCI

Differences in fruit skin thickness between selected apple (Malus domestica Borkh.) cultivars assessed by histological and sensory methods

I. Homutová1, J. Blažek2
1 Faculty of Agrobiology, Food and Natural Resources, Czech University of Agriculture in Prague, Prague, Czech Republic
2 Research and Breeding Institute of Pomology, Holovousy, Czech Republic

In total 20 grown cultivars and advanced selections were included in a two-year study of apple skin thickness. The mean skin thickness of single cultivars measured on classical histological sections through the skin varied from 33.3 μm to 73.1 μm. The late ripening cultivars (Resista,Melrose, Angold and Zuzana) had a thicker skin than the earlier ripening ones. Direct measurements of the apple skin showed that its thickness was not uniform but variable to a great extent between single slices even within a very short distance. The magnitude of variability seemed to be also somewhat dependent on the cultivar. The skin thickness was significantly influenced by the year in some cultivars. The greatest difference in this respect was found in Gala Must where the skin was much thicker in 2003 than 2004. A close relationship was found between the varietal means of skin thickness obtained by direct measurement and corresponding mean scores of panellists. The values of Idared and Topaz were notably remote from the regression line. This disagreement was probably related to different skin structures of both cultivars.

Keywords: apple; skin; thickness; histology; sensory evaluation; cultivars; relationship

Published: September 30, 2006  Show citation

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Homutová I, Blažek J. Differences in fruit skin thickness between selected apple (Malus domestica Borkh.) cultivars assessed by histological and sensory methods. Hort. Sci. (Prague). 2006;33(3):108-113. doi: 10.17221/3747-HORTSCI.
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