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Effect of rootstocks on growth and fruiting of apple trees. II. Effect on Gloster up to five years after planting

Władysław Poniedziałek, Kazimierz Nosal, Stanisław Porębski

Department of Pomology
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

Gloster apple trees were planted in autumn 1986 on MM 106, M 26, and M 9 rootstocks in a randomized block design with 4 replications and 3 trees per plot. Five years after planting the trees on MM 106 and M 26 rootstocks had similar growth and gave similar yields. Their crop efficiency was almost identical. The trees on MM 106 rootstock seem to perform better because they do not need support as do those on M 26 rootstock. The trees on M 9 rootstock were dwarfed to a greater degree and gave a lower cumulative yield/tree but showed the highest efficiency. The greatest mean fruit weight was found on this rootstock, the differences being non-significant.

Poniedziałek W., Nosal K., Porębski S., 1995. Effect of rootstocks on growth and fruiting of apple trees. II. Effect on Gloster up to five years after planting. Folia Horticulturae 7/2: 11-18.