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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/537

Title: Influência do sistema de condução nos prejuizos resultantes da traça-da-uva e da podridão-cinzenta nas castas Syrah e Trincadeira
Authors: Santos, Maria Fernanda Castiço dos
Advisor: Mexia, António Marques
Castro, Rogério Neves de
Keywords: vitis vinifera
Lobesia botrana
Botrytis cinerea
Lys
Lyre
Lira
vertical shoot positioned
Monoplano ascendente
Issue Date: 2007
Abstract: A study was conducted to assess the influence of different training systems in the resulting damages caused by the grape-berry-moth (Lobesia botrana Denis & Schiff.) and grey-mold (Botrytis cinerea Pers.), as a way to determine the effect of canopy structure in the behaviour of the major vineyard enemies. Field experiments were performed during the 2002 growing season, in an experimental vineyard at Instituto Superior de Agronomia, in Vitis vinifera L. varieties: ‘Syrah’ and ‘Trincadeira’, using three different training systems – Lys, Lyre and Vertical Shoot Positioned. Canopy structure was determined by leaf area index, canopy dimension and density assessed at compact bunches. Damage intensity was evaluated by weekly sampling of leafs and bunches of grapes. Incidence and severity were determined for diseases, whereas for grape-berry-moth was determined its life cycle and percentage of attacked bunches of grapes. In the mentioned growing season three generations of grape-berry-moth were observed, with preference by ‘Syrah’ grapes. This variety had an higher incidence and severity of grey-mold on grapes. Lys training system showed an higher leaf area and the highest attack by Lobesia botrana. The training system Lyre in ‘Trincadeira’ and Vertical Shoot Positioned in ‘Syrah’ presented a lower severity of grey-mold.
Description: Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/537
Appears in Collections:BISA - Dissertações de Mestrado / Master Thesis

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