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Canopy management for fruitfulness

Canopy management for fruitfulness This paper reviews the influence of canopy management practices on grapevine bud fruitfulness and fruit yield per node. These practices include trellis‐training systems, shoot positioning, shoot orientation, shoot trimming, leaf removal in the fruiting zone, control of shoot number and spacing, and control of shoot vigour. An important theme of this review is the primary role that the light environment of the renewal zone plays in the regulation of shoots per node, bunches per shoot, weight per bunch and primary bud‐axis necrosis (PBN). Such necrosis is a possible cause of the low number of bunches per shoot associated with high shoot vigour and canopy shading; increased incidence of PBN results in a greater proportion of secondary, compared with primary shoots. As a consequence, average shoot fruitfulness is decreased by the replacement of the relatively fruitful primary shoots with less fruitful secondary shoots. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australian Journal of Grape and Wine Research Wiley

Canopy management for fruitfulness

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Publisher
Wiley
Copyright
Copyright © 2000 Wiley Subscription Services, Inc., A Wiley Company
ISSN
1322-7130
eISSN
1755-0238
DOI
10.1111/j.1755-0238.2000.tb00168.x
Publisher site
See Article on Publisher Site

Abstract

This paper reviews the influence of canopy management practices on grapevine bud fruitfulness and fruit yield per node. These practices include trellis‐training systems, shoot positioning, shoot orientation, shoot trimming, leaf removal in the fruiting zone, control of shoot number and spacing, and control of shoot vigour. An important theme of this review is the primary role that the light environment of the renewal zone plays in the regulation of shoots per node, bunches per shoot, weight per bunch and primary bud‐axis necrosis (PBN). Such necrosis is a possible cause of the low number of bunches per shoot associated with high shoot vigour and canopy shading; increased incidence of PBN results in a greater proportion of secondary, compared with primary shoots. As a consequence, average shoot fruitfulness is decreased by the replacement of the relatively fruitful primary shoots with less fruitful secondary shoots.

Journal

Australian Journal of Grape and Wine ResearchWiley

Published: Jul 1, 2000

References