Articles
Performances of four Romanian prune cultivars grafted on two rootstocks under the Trident canopy
Article number
1384_21
Pages
155 – 164
Language
English
Abstract
Four local Romanian prune cultivars: Gemenea, Brumării, Record and Record mutant were grafted on Mirobolan 29C and Ishtara rootstocks and planted in early spring of 2013 at the Faculty of Horticulture in București.
The trees planted at 4.0×2.5 m were trained as Trident canopy on four wire trellis fixed on pine poles.
Typical winter and summer pruning, completed with axes leading on trellis wires have been used to form a parallel Trident canopy.
Tree growth, expressed as tree height and trunk cross-sectional area, average yield tree‑1 and ha‑1, and the grafting compatibility between scions and rootstocks were recorded.
Rootstocks significantly influenced the tree vigour and productivity of tested cultivars.
The vegetative trait measurements showed that cultivars grafted on Myrobalan 29C were the most vigorous.
The highest cumulative yields were obtained from Record mutant grafted on Ishtara, while the lowest yield was harvested from Brumării on Myrobalan 29C. Some fruit morpho-chemical parameters as weight, fruit shape index, firmness and soluble solids content were studied annually (2014-2020) after ripening.
The largest fruit weight was recorded on the cultivars grafted on Ishtara rootstock, while the smallest one on Myrobalan 29C. Gemenea and Record were the most promising for fresh consumption, while Brumării, due to its highest content of dry matter, can be recommended for processing.
By analysing tree growth parameters, fruit quality and production, Trident canopy showed to be suitable for medium density planting systems in prune orchards.
The trees planted at 4.0×2.5 m were trained as Trident canopy on four wire trellis fixed on pine poles.
Typical winter and summer pruning, completed with axes leading on trellis wires have been used to form a parallel Trident canopy.
Tree growth, expressed as tree height and trunk cross-sectional area, average yield tree‑1 and ha‑1, and the grafting compatibility between scions and rootstocks were recorded.
Rootstocks significantly influenced the tree vigour and productivity of tested cultivars.
The vegetative trait measurements showed that cultivars grafted on Myrobalan 29C were the most vigorous.
The highest cumulative yields were obtained from Record mutant grafted on Ishtara, while the lowest yield was harvested from Brumării on Myrobalan 29C. Some fruit morpho-chemical parameters as weight, fruit shape index, firmness and soluble solids content were studied annually (2014-2020) after ripening.
The largest fruit weight was recorded on the cultivars grafted on Ishtara rootstock, while the smallest one on Myrobalan 29C. Gemenea and Record were the most promising for fresh consumption, while Brumării, due to its highest content of dry matter, can be recommended for processing.
By analysing tree growth parameters, fruit quality and production, Trident canopy showed to be suitable for medium density planting systems in prune orchards.
Authors
L.M. Iliescu, E.G. Stan, A.G. Peticilă, C.A. Mihai, F. Stănică
Keywords
planting system, vigour, yield, fruit characteristics
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