Folia Horticulturae

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Effect of rootstocks on growth and fruiting of apple trees. I. Effect on Jonagold 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

Jonagold apple trees were planted in autumn 1986 on MM 106, M 26, and M9 rootstocks in a randomized block design with 4 replications and 3 trees per plot. A significantly stronger growth of the trees was noted on MM 106 and the weakest on M 9. On the trunk cross-section area basis the following vigour on different rootstocks was found: MM 106 - 100%, M 26 - 67%, M 9 - 37%. The trees began to bear in 1989. The strongest growing trees on MM 106 rootstock gave the highest cumulative yield per tree and trees on M 9 the lowest. Efficiency of the trees was greatest on M 9 and similar on M 26 and MM 106. Significantly larger fruits were obtained on M 9 rootstock.

Poniedziałek W., Nosal K., Porębski S., 1995. Effect of rootstocks on growth and fruiting of apple trees. I. Effect on Jonagold up to five years after planting. Folia Horticulturae 7/1: 145-152.