Growth regulators effects on flower opening and fruit quality of pineapple

Detalhes bibliográficos
Autor(a) principal: Cunha, Getúlio Augusto Pinto da
Data de Publicação: 2014
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/16603
Resumo: A trial was conducted to test the effects of GA3, 2,4-D, metiquat chloride and 2-chloroetylfosfonic acid on the opening of pineapple flowers and upon some qualitative and quantitative characteristics of the fruit. Only the 2-chloroetylfosfonic acid (1.000, 2.000 and 3.000 ppm) inhibited flower opening. This compound also reduced the juice content and the number of slips per plant significantly. Despite some significant differences among a few treatments, in general most treatments, independent of their concentrations, had little effects on the other parameters studied, such as crown size, % eatable portion of the fruit, fruit weight and length fruit core diameter, total soluble solids, acidity and pH. Preliminary observations still showed that Fusarium moniliforme attack was lower in the fruits treated with 2-chloroetylfosfonic acid. The establishment of a cultural practice which inhibits the opening of the pineapple flowers could be valuable for the control of such disease. Further studies should be carried out in order to corroborate the preliminary results obtained in the present work.
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spelling Growth regulators effects on flower opening and fruit quality of pineappleEfeitos de fitorreguladores na abertura de flores e aspectos qualitativos e quantitativos do abacaxizeiro ‘Pérola'Ananas comosus; fruit quality; ‘fusariose"; 2-chloroetylfosfonic acidAnanas comosus; qualidade do fruto; fusariose; ácido 2-cloroetilfosfônicoA trial was conducted to test the effects of GA3, 2,4-D, metiquat chloride and 2-chloroetylfosfonic acid on the opening of pineapple flowers and upon some qualitative and quantitative characteristics of the fruit. Only the 2-chloroetylfosfonic acid (1.000, 2.000 and 3.000 ppm) inhibited flower opening. This compound also reduced the juice content and the number of slips per plant significantly. Despite some significant differences among a few treatments, in general most treatments, independent of their concentrations, had little effects on the other parameters studied, such as crown size, % eatable portion of the fruit, fruit weight and length fruit core diameter, total soluble solids, acidity and pH. Preliminary observations still showed that Fusarium moniliforme attack was lower in the fruits treated with 2-chloroetylfosfonic acid. The establishment of a cultural practice which inhibits the opening of the pineapple flowers could be valuable for the control of such disease. Further studies should be carried out in order to corroborate the preliminary results obtained in the present work.Substâncias reguladoras do crescimento, há muito tempo, são usadas na abacaxicultura, visando a antecipação da floração e uniformização da maturação do fruto pré-colheita. Neste trabalho foram estudados os efeitos do cloreto de metiquat, 2,4-D, AG3 e do ácido 2-cloroetilfosfônico, em três concentrações cada, na abertura das flores do abacaxizeiro. O ácido 2-cloroetilfosfônico foi o único produto a inibir totalmente a abertura das flores, nas dosagens de 1.000, 2.000 e 3.000 ppm, reduzindo também, significativamente, o número de mudas por planta e a percentagem de suco. Apesar de em alguns poucos casos ocorrerem diferenças estatísticas, em geral, não houve influência dos tratamentos sobre os aspectos qualitativos dos frutos, bem como sobre os valores referentes ao comprimento da coroa, percentagem de parte comestível do fruto, peso médio dos frutos, diâmetro do fruto e do eixo do fruto, comprimento do fruto sem coroa. Observações preliminares mostraram ainda que a incidência de fusariose nos frutos foi menor nos tratamentos com o ácido 2-cloroetilfosronico. O estabelecimento de uma prática cultural capaz de inibir a abertura das flores do abacaxizeiro poderia constituir-se num auxiliar valioso no controle da fusariose, tornando-se necessária, portanto, a realização de estudos mais detalhados, a fim de se comprovarem os resultados obtidos no presente trabalho.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCunha, Getúlio Augusto Pinto da2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/16603Pesquisa Agropecuaria Brasileira; v.15, n.4, abr. 1980; 423-429Pesquisa Agropecuária Brasileira; v.15, n.4, abr. 1980; 423-4291678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/16603/10892info:eu-repo/semantics/openAccess2014-04-15T19:35:38Zoai:ojs.seer.sct.embrapa.br:article/16603Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:35:38Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Growth regulators effects on flower opening and fruit quality of pineapple
Efeitos de fitorreguladores na abertura de flores e aspectos qualitativos e quantitativos do abacaxizeiro ‘Pérola'
title Growth regulators effects on flower opening and fruit quality of pineapple
spellingShingle Growth regulators effects on flower opening and fruit quality of pineapple
Cunha, Getúlio Augusto Pinto da
Ananas comosus; fruit quality; ‘fusariose"; 2-chloroetylfosfonic acid
Ananas comosus; qualidade do fruto; fusariose; ácido 2-cloroetilfosfônico
title_short Growth regulators effects on flower opening and fruit quality of pineapple
title_full Growth regulators effects on flower opening and fruit quality of pineapple
title_fullStr Growth regulators effects on flower opening and fruit quality of pineapple
title_full_unstemmed Growth regulators effects on flower opening and fruit quality of pineapple
title_sort Growth regulators effects on flower opening and fruit quality of pineapple
author Cunha, Getúlio Augusto Pinto da
author_facet Cunha, Getúlio Augusto Pinto da
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Cunha, Getúlio Augusto Pinto da
dc.subject.por.fl_str_mv Ananas comosus; fruit quality; ‘fusariose"; 2-chloroetylfosfonic acid
Ananas comosus; qualidade do fruto; fusariose; ácido 2-cloroetilfosfônico
topic Ananas comosus; fruit quality; ‘fusariose"; 2-chloroetylfosfonic acid
Ananas comosus; qualidade do fruto; fusariose; ácido 2-cloroetilfosfônico
description A trial was conducted to test the effects of GA3, 2,4-D, metiquat chloride and 2-chloroetylfosfonic acid on the opening of pineapple flowers and upon some qualitative and quantitative characteristics of the fruit. Only the 2-chloroetylfosfonic acid (1.000, 2.000 and 3.000 ppm) inhibited flower opening. This compound also reduced the juice content and the number of slips per plant significantly. Despite some significant differences among a few treatments, in general most treatments, independent of their concentrations, had little effects on the other parameters studied, such as crown size, % eatable portion of the fruit, fruit weight and length fruit core diameter, total soluble solids, acidity and pH. Preliminary observations still showed that Fusarium moniliforme attack was lower in the fruits treated with 2-chloroetylfosfonic acid. The establishment of a cultural practice which inhibits the opening of the pineapple flowers could be valuable for the control of such disease. Further studies should be carried out in order to corroborate the preliminary results obtained in the present work.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16603
url https://seer.sct.embrapa.br/index.php/pab/article/view/16603
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/16603/10892
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.15, n.4, abr. 1980; 423-429
Pesquisa Agropecuária Brasileira; v.15, n.4, abr. 1980; 423-429
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
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reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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