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Effect of clonal rootstocks on some characteristics of quality of apples in Belarus

Anatolii M. Krivorot, Vyacheslav A. Samus', Ivan E. Zhabrovskii

Belarusian Research Institute for Fruit Growing
2 Kovaleva Street, Samokhvalovichi, Minsk region, 223013, Belarus
e-mail: belhort@it.org.by

An investigation concerning storage of apples from trees grown on different clonal rootstocks was carried out at the Belarusian Research Institute for Fruit Growing in the years 1998-2001. The cultivars ‘Antei’ (Belarus) and ‘Tellisaare’ (Estonia) were grown on four semi-dwarfing clonal rootstocks: 54-118 (Russia), D 1161 (Ukraine), B 16-20 (Russia), P 1 (Poland). The concentrations of soluble solids, titratable acids, ascorbic acid, sugars, pectins, and phenols in fruits of two apple cultivars were determined at harvest and after storage. Natural losses of mass, percentage of sound fruits, and of fruits affected by storage disorders were calculated on the basis of results of a three-year study. At the end of the storage period the content of soluble solids, titratable acid, ascorbic acid, pectins, and phenols in apples from trees on all the studied rootstocks decreased while the concentration of sugars and sugar/acid ratio increased, irrespective of the cultivar. Bifactorial analysis of variance showed that the cultivar was the the main factor affecting the proportion of sound apples and of fruits with physiological disorders while the factor rootstock affected the development of rot, the natural loss of mass and rotting apples being determined by interaction of the two factors.

Krivorot A.M., Samus' V.A., Zhabrovskii I.E., 2002. Effect of clonal rootstocks on some characteristics of quality of apples in Belarus. Folia Horticulturae 14/1: 235-241.