BEHAVIOUR OF SOME NECTARINE VARIETIES WITH DIFFERENT SHAPES OF CROWN

Nectarines, a heat loving species, have always found proper growing and fruit setting conditions in the south-eastern part of Romania, especially in Dobrogea.
Investigations were performed at the Research Station for Fruit Growing (RSFG) Constanta during three years on the behavior of nectarine varieties for different types of crown shape.
Four early nectarine cultivars were studied, three of them being created and homologated at the RSFG Constanta: ‘Cora’, ‘Delta’, ‘Romamer 2’, and ‘Crimsongold’, a foreign cultivar taken as a control treatment.
Another factor studied here was represented by crown shapes: Tatura trellis, Vertical axe, Veronese vase, Improved vase and four planting distances: 6 m x 2 m (833 trees/ha), 4 m x 1.5 m (1,666 trees/ha), 4 m x 3 m (833 trees/ha), and 4 m x 3.5 m (714 trees/ha), taken together.
It was emphasized that the influence of cultivar on the average fruit yield, depending on the crown shape, was higher in the Vertical axe shape with 4 m x 1.5 m planting distance for all cultivars studied.
This supports the idea of covering orchard expenses in a relatively short time for Vertical axe versus the other crown shapes.

II Balkan Symposium on Fruit Growing

C. Moale, C. Gavat, D. Hoza, L. Ion

Prunus persica, variety, crown shape, pruning

https://doi.org/10.17660/ActaHortic.2013.981.61