Apricot cultivar and rootstock development

Due to the large number of available apricot (Prunus armeniaca L.) cultivars and rootstocks and the high production risk, it is becoming increasingly important to find out which scion-rootstock combinations can be grown successfully.
Sixteen apricot scions were budded on 6 rootstocks.
The rootstocks used were ‘Apricot seedling’, ‘Montclar’, ‘Myrobalan 29C’, ‘Wavit’, ‘Rootpack R’ and ‘Fehér besztercei’. The scions were ‘Bergarouge’, ‘Bergeron’, ‘Ceglédi óriás’, ‘Ceglédi szilárd’, ‘Flavor Cot’, ‘Goldrich’, ‘Gönci magyar kajszi’, ‘Harogem’, ‘Lady Cot’, ‘Lilly Cot’, ‘Pannónia’, ‘Pink Cot’, ‘Roxana’, ‘Spring Blush’, ‘Tardif de Valence’ and ‘Tom Cot’. This research is carried out in the experimental orchard of the Research Station of Cegléd, Hungary.
The main effect of the different rootstocks can be observed in the growth habit of the scions, while the scion variety also had a moderate effect.
Survival ranged from 58% (‘Apricot seedling’) to 94% (‘Rootpack R’). Considering the trunk cross-sectional area, the rootstocks ‘Wavit’ (5.98 cm²) and ‘Fehér besztercei’ (7.58 cm²) produced the weakest growth for all cultivars, followed by ‘Myrobalan 29C’ (17.28 cm²) and ‘Apricot seedling’ (19.56 cm²), while ‘Montclar’ (20.41 cm²) and ‘Rootpack R’ (22.8 cm²) produced the strongest trees.

EHC2024: International Symposium on Genetic Resources in Horticulture: Screening, Propagation, Use, and Conservation

E. Mendelné Pászti, G. Bujdosó, Á. Mendel

Central-Hungary, climate adaptation, propagation, scion, soil, vegetative growth

https://doi.org/10.17660/ActaHortic.2025.1439.25