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Article

Performance of Croatina under Short-Cane Mechanical Hedging: A Successful Case of Adaptation

Stefano Poni, Fabio Bernizzoni, Pasquale Presutto, Barbara Rebucci
Am J Enol Vitic. January 2004 55: 379-388; published ahead of print January 01, 2004
Stefano Poni
Istituto di Frutti-viticoltura, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29100 Piacenza, Italy
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Fabio Bernizzoni
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Pasquale Presutto
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Barbara Rebucci
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Abstract

The hypothesis that short mechanical hedging can be successfully applied even on cultivars with low fruitfulness of basal buds was tested over four years (2000 to 2003) on Vitis vinifera L. cv. Croatina. Yield per vine increased from 23 to 49% on hedged vines as compared to short-cane hand-pruned vines; up to a 30% increase (equivalent to ∼60 nodes per vine) there was no detriment to grape quality, and labor demand was cut by 55 to 60%. Yield compensation in the hedged vines mostly occurred as reduced budbreak; weak or no compensation effects were seen for cluster weight and bud fruitfulness, respectively. A tendency for impaired quality was seen only at the highest node number per vine (∼75), while the linear relationship found between yield and node number per vine suggests that short-cane hand-pruning can also be feasible provided that at least 30 nodes per meter of row are retained. These findings indicate that mechanical pruning can be an excellent tool for converting traditionally long-cane pruned cultivars into short-cane pruned with related advantages in terms of more balanced growth and ripening and adaptability to full mechanization.

  • winter pruning
  • bud fruitfulness
  • grape quality
  • labor requirements
  • yield compensation

Acknowledgments: The authors thank Cesare Intrieri, University of Bologna, for critical reading of the manuscript, David Verzoni for editing and restyling the English text, and Giovanni Fugazza for lending the vineyard plots. This investigation was supported by a grant from CRPV, Filiera Viti-vinicola, Regione Emilia-Romagna, Italy.

  • Copyright 2004 by the American Society for Enology and Viticulture

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Vol 55 Issue 4

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Performance of Croatina under Short-Cane Mechanical Hedging: A Successful Case of Adaptation
Stefano Poni, Fabio Bernizzoni, Pasquale Presutto, Barbara Rebucci
Am J Enol Vitic.  January 2004  55: 379-388;  published ahead of print January 01, 2004

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Performance of Croatina under Short-Cane Mechanical Hedging: A Successful Case of Adaptation
Stefano Poni, Fabio Bernizzoni, Pasquale Presutto, Barbara Rebucci
Am J Enol Vitic.  January 2004  55: 379-388;  published ahead of print January 01, 2004
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