|Authors: ||D. Sotirov, I. Krishkova|
|Keywords: ||Prunus cerasus, balance value, gross production, rate of profitability|
The study was carried out at the Institute of Agriculture, Kyustendil (Bulgaria). The aim was to compare economic indices of sour cherry production of the ‘Heimanns Rubinweichsel’, ‘M-15’ and ‘Nefris’ cultivars grown on their own roots (trees obtained by in vitro propagation) with trees grafted on seedlings of the ‘IK-M9’ Mahaleb rootstock.
The balance value, productivity and economic efficiency of these cultivars were evaluated.
The analysis showed that the balance value per one hectare of the own-rooted trees was higher than that of the grafted ones.
The gross production of trees grafted on ‘IK-M9’ was higher than that of the own-rooted.
The differences were 60.8% for ‘M-15’, 98.9% for ‘Nefris’ and 86.5% for ‘Heimanns Rubinweichsel’. The most suitable cultivar/rootstock combinations, from the economic point of view, were those of ‘M-15’ and ‘Nefris’, grafted on the ‘IK-M9’ rootstock.
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