ISHS Acta Horticulturae 734: VIII International Symposium on Plum and Prune Genetics, Breeding and Pomology
ROOTSTOCKS IN PLUM GROWING - RESULTS OF AN INTER-NATIONAL ROOTSTOCK TRIAL |
| Authors: | W. Hartmann, H.-D. Beuschlein, J. Kosina, D. Ogasanović, D. Paszko |
| Keywords: | plum and prune, rootstocks, yield, fruit size, suckers |
| Abstract:
Tree development was very different at the diverse locations chosen for this trial. No one of the tested rootstocks ('Hamyra', 'St. Julien GF 655/2', 'Jaspi' and 'Ishtara') proved to be really dwarfing. The myrobalan ('Hamyra'), planted as control, grew the strongest. The most dwarfing rootstock was 'St. Julien GF 655/2'. The rankings of the growth on the various rootstocks were influenced by the choice of cultivar and by the location. Best specific and also best accumulated yield was, with one exception, found on the rootstock 'Jaspi'. This rootstock also produced the best fruit size at two locations; only in Germany it was placed second behind 'Ishtara' in this respect. But it must be noted that the influence of the site location on fruit size was very strong. Suckering was a problem only on 'St. Julien GF 655/2'. 'Jaspi' and 'Ishtara' are promising semi-dwarfing rootstocks. | |
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