ISHS Acta Horticulturae 795: V International Cherry Symposium
PROGRESS IN CHERRY ROOTSTOCK RESEARCH |
| Author: | K. Hrotkó |
| Keywords: | Prunus avium, P. cerasus, breeding methods, seed tree selection, clonal, interspecific hybrids, physiology of scion/rootstock interactions, graft incompatibility |
| Abstract:
Cherry rootstock research over the last decade has been focused more on rootstock evaluation than on breeding new rootstocks. There are only a few new breeding projects and successful rootstock introductions, but many rootstock selections are in the evaluation stage. Cherry rootstock breeding has achieved a complete range of tree vigour levels, which was only a dream 30 to 40 years ago. Dwarfing rootstocks are used primarily for sweet cherries (Prunus avium L.) in intensive orchards, but they can be used for sour cherries (P. cerasus L.) as well, since some mechanical harvesters for small trees can be used (or are in development). Though the use of dwarfing rootstock is spreading, knowledge regarding rootstock/scion interactions and the mechanism(s) of rootstock effects on scion growth and crop development continues to be insufficient. The interactions between rootstock vigour, precocity, fruiting wood development, renewal capacity and crop load are complicated but essential for appropriate rootstock selection. The vigour of the site, orchard system and training and pruning methods also should be matched with the selected scion/rootstock combination. The rootstock’s role and relationship with these factors has been investigated; the results may help to understand the complex problem of rootstock selection for intensive orchards. | |
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