The effect of training systems and planting density on growth and fruiting of plum trees budded on divaricata prune seedling rootstock
Zygmunt S. Grzyb, Mirosław Sitarek
Research Institute of Pomology and Floriculture
Pomologiczna 18, 96-100 Skierniewice, Poland
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‘Amers’ plum trees (Prunus domestica L.) budded on
seedlings of P. cerasifera var. divaricata Led. were planted
in the spring of 1994 at the Experimental Orchard in D±browice near
Skierniewice. The trees were planted at a distance of 4.5 m between rows
and in diverse distances in the row (2.0, 2.5, 3.0 m). Two training
systems were applied - regulated tree and spindle. Dense planting of plums
suppressed more growth intensity of spindle trees than regulated trees.
Trees trained as spindle produced a lower yield than lightly pruned
regulated ones. Diverse planting distances had an effect on yield per tree
and the crop calculated in tons per hectare - the greater the planting
density, the lower the cumulative yield per tree but the higher the
production per ha. Planting density had no effect on fruit quality but the
system of training did so. Mean fruit weight from spindle trees was
generally greater than that from regulated ones.
Grzyb Z.S., Sitarek M., 2003. The effect of training systems and planting density on
growth and fruiting of plum trees budded on divaricata prune seedling rootstock. Folia Horticulturae 15/1: 69-74.