Influence of the rootstock on the physical-mechanical properties of the plum fruit (Prunus domestica L.)

The research was conducted in the experimental-production plum orchard during 2013. Some of the most important physical and mechanical properties of the fruit were investigated in three plum cultivars („Čačanska Rana‟, „Čačanska Lepotica‟ i „Čačanska Najbolja‟) grafted on four rootstocks: one generative Myrobalan (Prunus cerasifera Ehrh.) and three vegetative ones (Pixy, St. Julien A and Ferley). St. Julien A induced the highest all three fruit dimensions in „Čačanska Najbolja‟, and length and thickness in „Čačanska Lepotica‟. Myrobalan and Fereley had the same effect in the „Čačanska Rana‟. St. Julien A influenced the biggest fruit firmness in „Čačanska Najbolja‟ and the smallest in „Čačanska Lepotica‟.