Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.

Detalhes bibliográficos
Autor(a) principal: CHAVES, A. R. de M.
Data de Publicação: 2016
Outros Autores: SILVA, D. J., AIDAR, S. de T., SANTOS, L. M., PRADO, K. A. C. de, COSTA, B. R. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1060196
Resumo: The nutrients availability can lead to changes on grapevines physiological behavior, which results in a great importance of studies regarding the application of potassium doses. The aim of this research was to evaluate the ecophysiological behavior of grapevine cultivar ?Syrah? growing under different potassium doses by fertigation, according to the determination of gas exchange, chlorophyll a, fluorescence and pigments index. Five years old plants, grafted on ?Paulsen 1103? rootstock, in a trellis system and planted at the Bebedouro Experimental Field, located in Petrolina, PE, Brazil, were evaluated. The experiment was composed by five potassium doses (0, 20, 40, 80 and 160 kg ha-1), applied by fertigation. The potassium sources were potassium sulfate, potassium nitrate and potassium chloride. The evaluations of the ecophysiologyical parameters were performed at four different times (07am, 10am, 1pm and 3pm) throughout the day on the flowering stage and the first and second fruit growth stages, determining gas exchange and chlorophyll a fluorescence and the pigments index was evaluated at the same grapevines leaves one time. Considering each evaluation period, it was observed that, according to the magnitude of the results for gas exchange, chlorophyll a fluorescence and pigments index, is not possible to indicate the best potassium dose. The climatic conditions during each period of evaluation influenced most the eco-physiological variables than the applied potassium doses, while the changes on pigments index were due to leaves development during the plant cycle.
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spelling Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.Fluorescência da clorofilaVale do São FranciscoEcofisiológiaChlorophyll a fluorescenceUvaFisiologia vegetalFotossíntesePotássioVitis ViniferaPhotosynthesisThe nutrients availability can lead to changes on grapevines physiological behavior, which results in a great importance of studies regarding the application of potassium doses. The aim of this research was to evaluate the ecophysiological behavior of grapevine cultivar ?Syrah? growing under different potassium doses by fertigation, according to the determination of gas exchange, chlorophyll a, fluorescence and pigments index. Five years old plants, grafted on ?Paulsen 1103? rootstock, in a trellis system and planted at the Bebedouro Experimental Field, located in Petrolina, PE, Brazil, were evaluated. The experiment was composed by five potassium doses (0, 20, 40, 80 and 160 kg ha-1), applied by fertigation. The potassium sources were potassium sulfate, potassium nitrate and potassium chloride. The evaluations of the ecophysiologyical parameters were performed at four different times (07am, 10am, 1pm and 3pm) throughout the day on the flowering stage and the first and second fruit growth stages, determining gas exchange and chlorophyll a fluorescence and the pigments index was evaluated at the same grapevines leaves one time. Considering each evaluation period, it was observed that, according to the magnitude of the results for gas exchange, chlorophyll a fluorescence and pigments index, is not possible to indicate the best potassium dose. The climatic conditions during each period of evaluation influenced most the eco-physiological variables than the applied potassium doses, while the changes on pigments index were due to leaves development during the plant cycle.AGNALDO RODRIGUES DE MELO CHAVES, CPATSA; DAVI JOSE SILVA, CPATSA; SAULO DE TARSO AIDAR, CPATSA; LUCIANA MARTINS SANTOS, UPE; KARINNE ALBUQUERQUE CAMPOS DE PRADO, UPE; BRUNO RICARDO SILVA COSTA.CHAVES, A. R. de M.SILVA, D. J.AIDAR, S. de T.SANTOS, L. M.PRADO, K. A. C. deCOSTA, B. R. S.2017-02-16T22:51:20Z2017-02-16T22:51:20Z2017-01-0920162017-02-16T22:51:20Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleComunicata Scientiae, v. 7, n. 3, p. 362-371, 2016.http://www.alice.cnptia.embrapa.br/alice/handle/doc/106019610.14295/CS.v7i3.1764enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T04:11:34Zoai:www.alice.cnptia.embrapa.br:doc/1060196Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T04:11:34falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T04:11:34Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
title Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
spellingShingle Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
CHAVES, A. R. de M.
Fluorescência da clorofila
Vale do São Francisco
Ecofisiológia
Chlorophyll a fluorescence
Uva
Fisiologia vegetal
Fotossíntese
Potássio
Vitis Vinifera
Photosynthesis
title_short Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
title_full Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
title_fullStr Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
title_full_unstemmed Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
title_sort Potassium doses on the ecophysiological characteristics of Syrah grapevine grown at São Francisco River Valley, Brazil.
author CHAVES, A. R. de M.
author_facet CHAVES, A. R. de M.
SILVA, D. J.
AIDAR, S. de T.
SANTOS, L. M.
PRADO, K. A. C. de
COSTA, B. R. S.
author_role author
author2 SILVA, D. J.
AIDAR, S. de T.
SANTOS, L. M.
PRADO, K. A. C. de
COSTA, B. R. S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv AGNALDO RODRIGUES DE MELO CHAVES, CPATSA; DAVI JOSE SILVA, CPATSA; SAULO DE TARSO AIDAR, CPATSA; LUCIANA MARTINS SANTOS, UPE; KARINNE ALBUQUERQUE CAMPOS DE PRADO, UPE; BRUNO RICARDO SILVA COSTA.
dc.contributor.author.fl_str_mv CHAVES, A. R. de M.
SILVA, D. J.
AIDAR, S. de T.
SANTOS, L. M.
PRADO, K. A. C. de
COSTA, B. R. S.
dc.subject.por.fl_str_mv Fluorescência da clorofila
Vale do São Francisco
Ecofisiológia
Chlorophyll a fluorescence
Uva
Fisiologia vegetal
Fotossíntese
Potássio
Vitis Vinifera
Photosynthesis
topic Fluorescência da clorofila
Vale do São Francisco
Ecofisiológia
Chlorophyll a fluorescence
Uva
Fisiologia vegetal
Fotossíntese
Potássio
Vitis Vinifera
Photosynthesis
description The nutrients availability can lead to changes on grapevines physiological behavior, which results in a great importance of studies regarding the application of potassium doses. The aim of this research was to evaluate the ecophysiological behavior of grapevine cultivar ?Syrah? growing under different potassium doses by fertigation, according to the determination of gas exchange, chlorophyll a, fluorescence and pigments index. Five years old plants, grafted on ?Paulsen 1103? rootstock, in a trellis system and planted at the Bebedouro Experimental Field, located in Petrolina, PE, Brazil, were evaluated. The experiment was composed by five potassium doses (0, 20, 40, 80 and 160 kg ha-1), applied by fertigation. The potassium sources were potassium sulfate, potassium nitrate and potassium chloride. The evaluations of the ecophysiologyical parameters were performed at four different times (07am, 10am, 1pm and 3pm) throughout the day on the flowering stage and the first and second fruit growth stages, determining gas exchange and chlorophyll a fluorescence and the pigments index was evaluated at the same grapevines leaves one time. Considering each evaluation period, it was observed that, according to the magnitude of the results for gas exchange, chlorophyll a fluorescence and pigments index, is not possible to indicate the best potassium dose. The climatic conditions during each period of evaluation influenced most the eco-physiological variables than the applied potassium doses, while the changes on pigments index were due to leaves development during the plant cycle.
publishDate 2016
dc.date.none.fl_str_mv 2016
2017-02-16T22:51:20Z
2017-02-16T22:51:20Z
2017-01-09
2017-02-16T22:51:20Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Comunicata Scientiae, v. 7, n. 3, p. 362-371, 2016.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1060196
10.14295/CS.v7i3.1764
identifier_str_mv Comunicata Scientiae, v. 7, n. 3, p. 362-371, 2016.
10.14295/CS.v7i3.1764
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1060196
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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