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Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality

Bibliographic Details
Main Author: Farina, Gabriele
Publication Date: 2016
Format: Master thesis
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10400.5/13354
Summary: Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia - UL
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spelling Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine qualityleaf removalKaolineCabernet SauvignondehydrationsunlightMestrado em Viticultura e Enologia - Instituto Superior de Agronomia - ULWith the goal to improve the characteristics of the grapes, a Cabernet sauvignon vineyard in Maule valley (Chile) was subjected to 5 different typologies of defoliation compared with a control not defoliated. Different timing and quality of defoliation were analysed. It was also compared a kaolin based product to reduce the warming effect of the direct light on the clusters. The study of the canopy, through the point quadrat and the leaf area analyses, gave objective parameters and enabled to have a repeatibility on the years. The amount of light in the canopy and the temperature of the clusters were registered for each treatment in three different occasions. At the harvest the berries were counted and divided according the dehydration to understand the damage done by the sun. The influence of the light and the temperature was studied on the chemical composition of the musts of the vintage 2016 and on the wines of the vintage 2015 to find the best correlation between the solar exposition and the quality parameters of the grapes as the flavonoids. The 2015 wine resulted from the same trial was also sensory analysed by a panel to find additional differences between the treatments. If on one hand, the solar light allows to diminish the quantity of green aromas and to improve the chemical characteristics, an over-exposition could be dangerous for the grape. The aim of this study was to find the right compromise to have the benefit of the light without the damage of the heat. According to this research a total defoliation of the cluster zone during the veraison could be a damage for the yield and the sensory characteristics of the wine. On the other hand the “no act” philosophy of the control doesn’t seem a valid solution because it has the worst sensory results. Seems that in this South American context, the best solution could be a treatment that allow the exposition to the light of the cluster avoiding the hottest hours of the day and limiting the warming of the berriesISA-ULLopes, Carlos Manuel AntunesNovello, VittorinoRepositório da Universidade de LisboaFarina, Gabriele2020-01-01T01:30:11Z20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/13354TID:203738780engFarina, G. - Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality. Lisboa: ISA, 2016, 47 p.info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-03-17T16:07:31Zoai:repositorio.ulisboa.pt:10400.5/13354Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-29T04:03:33.094159Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
title Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
spellingShingle Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
Farina, Gabriele
leaf removal
Kaoline
Cabernet Sauvignon
dehydration
sunlight
title_short Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
title_full Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
title_fullStr Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
title_full_unstemmed Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
title_sort Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality
author Farina, Gabriele
author_facet Farina, Gabriele
author_role author
dc.contributor.none.fl_str_mv Lopes, Carlos Manuel Antunes
Novello, Vittorino
Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Farina, Gabriele
dc.subject.por.fl_str_mv leaf removal
Kaoline
Cabernet Sauvignon
dehydration
sunlight
topic leaf removal
Kaoline
Cabernet Sauvignon
dehydration
sunlight
description Mestrado em Viticultura e Enologia - Instituto Superior de Agronomia - UL
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
2020-01-01T01:30:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.5/13354
TID:203738780
url http://hdl.handle.net/10400.5/13354
identifier_str_mv TID:203738780
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Farina, G. - Evaluation of leaf removal strategies and cluster radiation protection on Cabernet Sauvignon grape and wine quality. Lisboa: ISA, 2016, 47 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ISA-UL
publisher.none.fl_str_mv ISA-UL
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833601927052525568

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