Abstract
The aim of this research was to verify the possibility of limiting yield and delaying grape sugar
accumulation with postponement of finishing winter pruning after bud break in vines mechanically
pre-pruned in February. In 2014 and 2015, in a spur-pruned Sangiovese vineyard, the finishing
winter pruning treatments were carried out at BBCH0 (buds still dormant), BBCH15 and BBCH55
(when the apical shoots on the canes retained on vines with mechanical pre-pruning treatment were
10 and 20 cm long, respectively). Contrary to BBCH55 treatment, where the yield was drastically
reduced (-49%), the results show that this technique, simple and cheaper, applied at BBCH15 can
be useful in all situations where are required: 1) contain vine yield; 2) delay the technological
ripening and maintain higher titratable acidity; 3) improve the phenolic compounds in grape and
wine; 4) delay the useful period of grape harvest in specific vineyards, as can be required when
close to high acreage of the same grapevine cultivar or different cultivars with contemporaneous
ripeness can be need to avoid early racking with lost of color, tannins and aromatic compounds.
Titolo tradotto del contributo | [Autom. eng. transl.] Control of productivity and technological ripeness of grapes through late finishing interventions of winter pruning |
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Lingua originale | Italian |
Titolo della pubblicazione ospite | Acta Italus Hortus 19, Riassunti dei Lavori VI Convegno Nazionale di Viticoltura |
Pagine | 49-50 |
Numero di pagine | 2 |
Stato di pubblicazione | Pubblicato - 2016 |
Evento | VI Convegno Nazionale di Viticoltura - Pisa Durata: 4 lug 2016 → 7 lug 2016 |
Convegno
Convegno | VI Convegno Nazionale di Viticoltura |
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Città | Pisa |
Periodo | 4/7/16 → 7/7/16 |
Keywords
- Vitis vinifera
- potatura