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Grouping of 24 apple cultivars on the basis of starch degradation rate and their fruit pattern

Szalay, L., Ordidge, M., Ficzek, G., Hadley, P., Toth, M. and Battey, N. H. (2013) Grouping of 24 apple cultivars on the basis of starch degradation rate and their fruit pattern. Horticultural Science, 40 (3). pp. 93-101. ISSN 1805-9333

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The ripening processes of 24 apple cultivars were examined in the United Kingdom National Fruit Collection in 2010. Basically the starch content, and additionally ground colour, water-soluble solids content and flesh firmness were studied during ripening. The degradation of the starch content was evaluated using a 0–10 scale. A starch degradation value of 50% was taken to be the optimum harvest date, with harvest beginning at a value of 40% and finishing at 60%. Depending on the cultivar, this represented a harvest window of 9 to 21 days. Later ripening cultivars matured more slowly, leading to a longer harvesting period, with the exception of cv. Feuillemorte. Pronounced differences were observed among the cultivars on the basis of the starch degradation pattern, allowing them to be divided into four groups. Separate charts were elaborated for each group that are recommended for use in practice.

Item Type:Article
Divisions:Life Sciences > School of Biological Sciences > Ecology and Evolutionary Biology
ID Code:34750
Uncontrolled Keywords:Malus × domestica; optimum harvest date; harvest window; starch content
Publisher:Czech Academy of Agricultural Sciences (CAAS)

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