Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Dissertação |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.5/12214 |
Resumo: | Mestrado Vinifera Euromaster - Instituto Superior de Agronomia - UL |
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7160 |
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Effect of pre-bloom leaf defoliation on cluster morphology and disease pressuredefoliationfruit-setcluster morphologyRieslingcool climateMestrado Vinifera Euromaster - Instituto Superior de Agronomia - ULDefoliation of grapevines have been shown to impact fruit set and fruit development, although the extent to and timing of which defoliation impacts fruit set and development is still being investigated. This is useful for the purpose of managing crop load and can be a useful tool for disease management. Currently, the understanding is that removal of leaves from the fruiting zone alters the source-sink balance, forcing the grapevine to down-prioritize flowering resulting in reduced fruit set, smaller clusters and less rot (Incidence x Severity). The purpose of this project is to investigate how pre-bloom removal of the six basal leaves on Riesling (clone 49) grapevines alters fruit set, cluster morphology and berry composition. The experiment was conducted in 2014 at Michigan State University’s Southwest Michigan research and Extension Center in Benton Harbor, MI (lat. 42005’10.55” N, long. 86021’03.68”W). Our experiments show that there is a significant impact on fruit set as a consequence of defoliation, where defoliated vines showed a lower percentage of fruit set compared to control (43% vs. 63.4%) and the lower fruit set percentage also yielded less rot within the clusters (21.3% vs. 31.5%). Differences were noted in the rachis development (rachis were heavier and thicker with longer lateral branches in the control), but no significant changes were observed in berry composition and the proportions of successfully to unsuccessfully seeded berries as a result of the treatmentISA-ULLopes, Carlos Manuel AntunesSabbatini, PaoloRepositório da Universidade de LisboaPoulsen, Kristian Wermuth2016-09-26T14:29:48Z20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/10400.5/12214engPoulsen, K.W. - Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure. Lisboa: ISA, 2015, 49 p.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-12-24T01:32:29Zoai:www.repository.utl.pt:10400.5/12214Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:58:23.176790Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
title |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
spellingShingle |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure Poulsen, Kristian Wermuth defoliation fruit-set cluster morphology Riesling cool climate |
title_short |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
title_full |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
title_fullStr |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
title_full_unstemmed |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
title_sort |
Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure |
author |
Poulsen, Kristian Wermuth |
author_facet |
Poulsen, Kristian Wermuth |
author_role |
author |
dc.contributor.none.fl_str_mv |
Lopes, Carlos Manuel Antunes Sabbatini, Paolo Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Poulsen, Kristian Wermuth |
dc.subject.por.fl_str_mv |
defoliation fruit-set cluster morphology Riesling cool climate |
topic |
defoliation fruit-set cluster morphology Riesling cool climate |
description |
Mestrado Vinifera Euromaster - Instituto Superior de Agronomia - UL |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z 2016-09-26T14:29:48Z |
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/10400.5/12214 |
url |
http://hdl.handle.net/10400.5/12214 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Poulsen, K.W. - Effect of pre-bloom leaf defoliation on cluster morphology and disease pressure. Lisboa: ISA, 2015, 49 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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799131069456318464 |