Growth intensity of apple-trees on clonal rootstocks before the beginning of fruit bearing
2006
Haak, E., Estonian Univ. of Life Sciences, Karksi-Nuia (Estonia). Inst. of Agricultural and Environmental Sciences. Polli Horticultural Research Centre
In the years 2001-2004, the trial was carried out, within the collaborative project of four countries Baltic Fruit Rootstock Studies, aimed at the evaluation of the suitability of different rootstocks for Estonian conditions. Performance of two apple cultivars, 'Belorusskoje Malinovoje' and 'Auksis', was compared on 11 dwarfing or semi-dwarfing clonal rootstocks. M.9 served as control. The trees were planted at the Polli Horticultural Institute, southwest Estonia, in the spring 2001. Preliminary results, concerning initial tree vigour on different rootstocks and their resistance to Estonian climatic conditions during the first four years in the orchard, are given in this paper. In the first years after planting apple trees showed the strongest growth on the rootstocks 'Bulboga', M.26 and B146.
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