NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil

Detalhes bibliográficos
Autor(a) principal: Silva,Alexsandro Oliveira da
Data de Publicação: 2023
Outros Autores: Silva,Davi José, Bassoi,Luis Henrique, Chaves,Agnaldo Rodrigues de Melo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162023000101402
Resumo: ABSTRACT Evaluating the effects of N and K supply on grapevines ( Vitis vinifera L.) and the techniques for nutritional diagnosis is of great importance for fertigation management of this crop. This study evaluated the effects of N and K fertigation on the soluble concentrations of NO 3 – and K + in the petiole sap and on the leaf chlorophyll index in drip irrigated ‘Syrah’ grapevine (from 17 June 2013 to 25 Nov 2014). The treatments consisted of five levels of N (0, 15, 30, 60 and 120 kg ha –1 ) and K 2 O (0, 15, 30, 60 and 120 kg ha –1 ), combined in an incomplete 5 2 factorial scheme in 13 combinations and arranged in randomized blocks with four replications. We determined NO 3 – and K + concentrations in petiole sap, leaf chlorophyll index, grapevine cluster mass and number per plant, mean grapevine cluster mass, and phenolic composition. High NO 3 – concentrations contributed positively to grapevine yield; however, increased K+ concentrations caused a negative response of sap. For 120 kg N ha –1 rate, NO 3 – in the sap and chlorophyll index showed higher values at the flowering stage, while high values for K + were observed during the grape-ripening stage.
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spelling NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of BrazilVitis vinífera L.fertigationpetioleABSTRACT Evaluating the effects of N and K supply on grapevines ( Vitis vinifera L.) and the techniques for nutritional diagnosis is of great importance for fertigation management of this crop. This study evaluated the effects of N and K fertigation on the soluble concentrations of NO 3 – and K + in the petiole sap and on the leaf chlorophyll index in drip irrigated ‘Syrah’ grapevine (from 17 June 2013 to 25 Nov 2014). The treatments consisted of five levels of N (0, 15, 30, 60 and 120 kg ha –1 ) and K 2 O (0, 15, 30, 60 and 120 kg ha –1 ), combined in an incomplete 5 2 factorial scheme in 13 combinations and arranged in randomized blocks with four replications. We determined NO 3 – and K + concentrations in petiole sap, leaf chlorophyll index, grapevine cluster mass and number per plant, mean grapevine cluster mass, and phenolic composition. High NO 3 – concentrations contributed positively to grapevine yield; however, increased K+ concentrations caused a negative response of sap. For 120 kg N ha –1 rate, NO 3 – in the sap and chlorophyll index showed higher values at the flowering stage, while high values for K + were observed during the grape-ripening stage.Escola Superior de Agricultura "Luiz de Queiroz"2023-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162023000101402Scientia Agricola v.80 2023reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2021-0122info:eu-repo/semantics/openAccessSilva,Alexsandro Oliveira daSilva,Davi JoséBassoi,Luis HenriqueChaves,Agnaldo Rodrigues de Meloeng2022-07-25T00:00:00Zoai:scielo:S0103-90162023000101402Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2022-07-25T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
title NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
spellingShingle NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
Silva,Alexsandro Oliveira da
Vitis vinífera L.
fertigation
petiole
title_short NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
title_full NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
title_fullStr NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
title_full_unstemmed NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
title_sort NO 3 – , K + , and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
author Silva,Alexsandro Oliveira da
author_facet Silva,Alexsandro Oliveira da
Silva,Davi José
Bassoi,Luis Henrique
Chaves,Agnaldo Rodrigues de Melo
author_role author
author2 Silva,Davi José
Bassoi,Luis Henrique
Chaves,Agnaldo Rodrigues de Melo
author2_role author
author
author
dc.contributor.author.fl_str_mv Silva,Alexsandro Oliveira da
Silva,Davi José
Bassoi,Luis Henrique
Chaves,Agnaldo Rodrigues de Melo
dc.subject.por.fl_str_mv Vitis vinífera L.
fertigation
petiole
topic Vitis vinífera L.
fertigation
petiole
description ABSTRACT Evaluating the effects of N and K supply on grapevines ( Vitis vinifera L.) and the techniques for nutritional diagnosis is of great importance for fertigation management of this crop. This study evaluated the effects of N and K fertigation on the soluble concentrations of NO 3 – and K + in the petiole sap and on the leaf chlorophyll index in drip irrigated ‘Syrah’ grapevine (from 17 June 2013 to 25 Nov 2014). The treatments consisted of five levels of N (0, 15, 30, 60 and 120 kg ha –1 ) and K 2 O (0, 15, 30, 60 and 120 kg ha –1 ), combined in an incomplete 5 2 factorial scheme in 13 combinations and arranged in randomized blocks with four replications. We determined NO 3 – and K + concentrations in petiole sap, leaf chlorophyll index, grapevine cluster mass and number per plant, mean grapevine cluster mass, and phenolic composition. High NO 3 – concentrations contributed positively to grapevine yield; however, increased K+ concentrations caused a negative response of sap. For 120 kg N ha –1 rate, NO 3 – in the sap and chlorophyll index showed higher values at the flowering stage, while high values for K + were observed during the grape-ripening stage.
publishDate 2023
dc.date.none.fl_str_mv 2023-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162023000101402
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162023000101402
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1678-992x-2021-0122
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.80 2023
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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