Articles
TWO-YEAR OBSERVATIONS ON THE BIOLOGY AND FRUCTIFICATION OF APRICOT
Article number
192_57
Pages
383 – 400
Language
Abstract
A two-year study has been carried out, on the autocompatibility and different productivity of "long" branches, of the following ten different cultivars of apricot of the Vesuvius area: Antonaniello, Cafona, Cerasiello, Fronne fresche, Palumella, Pellecchiella, Pollastrella, Sorrentina, Sommese.
Vicario.
Tests have shown in 1982 and 1983, that the flowers present on the apical portion of the long-branch have given, in eight cultivars out of ten, a percentage of (P = 0.05) above the ones sited on the basal portion of the same branches.
The same behaviour has been shown by the percentage of fructification (ratio between the yielded fruits and the flowers present at the beginning of the test). In relation to this percentage, in seven cultivars out of ten, the apical portion of the branches have shown higher values in comparison to the ones of the basal portion of the same branches.
The influence of the position of the flowers on the branch has been less marked.
In fact, the percentage of maturity (ratio between yield on fruit and fruit-set) in relation to the apical portion of the branches, has shown significant and higher differences than the one on the basal portion of the same branches, in only four cultivars out of ten.
These results would lead to the conclusion, that once set, indifferently from the position on the branch, they all have the same possibility to ripen.
This data has important practical consequences because it suggests that long-branches, on the contrary of what normally happens in the Vesuvius area, do not need to be shortened by pruning during Winter
Vicario.
Tests have shown in 1982 and 1983, that the flowers present on the apical portion of the long-branch have given, in eight cultivars out of ten, a percentage of (P = 0.05) above the ones sited on the basal portion of the same branches.
The same behaviour has been shown by the percentage of fructification (ratio between the yielded fruits and the flowers present at the beginning of the test). In relation to this percentage, in seven cultivars out of ten, the apical portion of the branches have shown higher values in comparison to the ones of the basal portion of the same branches.
The influence of the position of the flowers on the branch has been less marked.
In fact, the percentage of maturity (ratio between yield on fruit and fruit-set) in relation to the apical portion of the branches, has shown significant and higher differences than the one on the basal portion of the same branches, in only four cultivars out of ten.
These results would lead to the conclusion, that once set, indifferently from the position on the branch, they all have the same possibility to ripen.
This data has important practical consequences because it suggests that long-branches, on the contrary of what normally happens in the Vesuvius area, do not need to be shortened by pruning during Winter
Authors
G. Pugliano, M. Forlani
Keywords
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