Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples

Detalhes bibliográficos
Autor(a) principal: Pereira, Adilson José
Data de Publicação: 2014
Outros Autores: Barradas, Carlos I. N., Koller, Otto Carlos, Dittrich, Renato Cesar
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/15815
Resumo: A field trial was carried out to evaluate the effects of concentration and time of application of naphthaleneacetic acid (NAA) on fruit thinning, quality and yield of apple (Malus domestica Borkh.) cv. Fuji, grafted on MM-106. Treatments consisted of hand thinning and application of 0, 7.5, 15, 22.5 and 30 ppm of NAA at 15, 20, 25 and 30 days after full bloom. Treatments were evaluated during 1981/82, in a six-year old commercial orchard, in São Joaquim 28°17’39” S, 49°55'56' O 1,388 m altitude), State of Santa Catarina, Brazil. NAA applied at 22.5 and 30 ppm resulted in the highest retention of fruits, which were of small size. At lower concentrations (7.5 and 15 ppm), NAA showed the best results in terms of thinning, size and average weight of fruits, when applied 15 or 20 days after full bloom. The best time for hand thinning was 25 - 30 days after full bloom. This work confirmed the usefulness of NAA as a chemical thinning agent. However, for best fruit size and distribution of fruits on the apple tree, additional hand thinning is recommended.
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spelling Concentrations and time of applications of naphthaleneacetic acid on yield and quality of applesConcentrações e épocas de aplicação do ácido naftalenoacético na produção e qualidade das maçãsapple tree; NAA; fruit thinningMacieira; NAA; raleio (raleamento) de frutosA field trial was carried out to evaluate the effects of concentration and time of application of naphthaleneacetic acid (NAA) on fruit thinning, quality and yield of apple (Malus domestica Borkh.) cv. Fuji, grafted on MM-106. Treatments consisted of hand thinning and application of 0, 7.5, 15, 22.5 and 30 ppm of NAA at 15, 20, 25 and 30 days after full bloom. Treatments were evaluated during 1981/82, in a six-year old commercial orchard, in São Joaquim 28°17’39” S, 49°55'56' O 1,388 m altitude), State of Santa Catarina, Brazil. NAA applied at 22.5 and 30 ppm resulted in the highest retention of fruits, which were of small size. At lower concentrations (7.5 and 15 ppm), NAA showed the best results in terms of thinning, size and average weight of fruits, when applied 15 or 20 days after full bloom. The best time for hand thinning was 25 - 30 days after full bloom. This work confirmed the usefulness of NAA as a chemical thinning agent. However, for best fruit size and distribution of fruits on the apple tree, additional hand thinning is recommended.O presente trabalho avaliou o efeito de diferentes concentrações e épocas de aplicação do ácido naftalenoacético (ANA) no raleio de frutos da macieira (Malus domestica Borkh.) cv. Fuji, enxertada sobre MM-106, e sua influência na qualidade e no rendimento de frutos. As concentrações utilizadas foram: zero; 7,5; 15; 22,5 e 30 ppm comparadas ao raleio manual, ambos aplicados aos 15, 20, 25 e 30 dias após a plena floração. Os tratamentos foram avaliados no período 1981/82, num pomar comercial com seis anos de idade, localizado no município de São Joaquim (latitude 28°17'39" S longitude 49°55'56" O e altitude de 1.388 m), Estado de Santa Catarina, Brasil. As concentrações de 22,5 e 30 ppm de ANA aplicadas aos 15 dias, propiciaram maior retenção de frutos, os quais foram de menor tamanho. As concentrações de 7,5 e 15 ppm de ANA aplicadas aos 15 ou 20 dias após a plena floração, apresentaram os efeitos mais acentuados sobre a percentagem de raleio e tamanho dos frutos. A época mais adequada para realização do raleio manual foi de 25 a 30 dias após a plena floração. Os resultados obtidos confirmaram a utilidade do ANA como agente químico de raleio, mas mostraram também que, para propiciar frutos com maior peso médio e melhor distribuição na planta, é necessária uma aplicação complementar do raleio manual.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraPereira, Adilson JoséBarradas, Carlos I. N.Koller, Otto CarlosDittrich, Renato Cesar2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15815Pesquisa Agropecuaria Brasileira; v.19, n.7, jul. 1984; 835-844Pesquisa Agropecuária Brasileira; v.19, n.7, jul. 1984; 835-8441678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15815/9877info:eu-repo/semantics/openAccess2014-04-16T19:26:02Zoai:ojs.seer.sct.embrapa.br:article/15815Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T19:26:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
Concentrações e épocas de aplicação do ácido naftalenoacético na produção e qualidade das maçãs
title Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
spellingShingle Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
Pereira, Adilson José
apple tree; NAA; fruit thinning
Macieira; NAA; raleio (raleamento) de frutos
title_short Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
title_full Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
title_fullStr Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
title_full_unstemmed Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
title_sort Concentrations and time of applications of naphthaleneacetic acid on yield and quality of apples
author Pereira, Adilson José
author_facet Pereira, Adilson José
Barradas, Carlos I. N.
Koller, Otto Carlos
Dittrich, Renato Cesar
author_role author
author2 Barradas, Carlos I. N.
Koller, Otto Carlos
Dittrich, Renato Cesar
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Pereira, Adilson José
Barradas, Carlos I. N.
Koller, Otto Carlos
Dittrich, Renato Cesar
dc.subject.por.fl_str_mv apple tree; NAA; fruit thinning
Macieira; NAA; raleio (raleamento) de frutos
topic apple tree; NAA; fruit thinning
Macieira; NAA; raleio (raleamento) de frutos
description A field trial was carried out to evaluate the effects of concentration and time of application of naphthaleneacetic acid (NAA) on fruit thinning, quality and yield of apple (Malus domestica Borkh.) cv. Fuji, grafted on MM-106. Treatments consisted of hand thinning and application of 0, 7.5, 15, 22.5 and 30 ppm of NAA at 15, 20, 25 and 30 days after full bloom. Treatments were evaluated during 1981/82, in a six-year old commercial orchard, in São Joaquim 28°17’39” S, 49°55'56' O 1,388 m altitude), State of Santa Catarina, Brazil. NAA applied at 22.5 and 30 ppm resulted in the highest retention of fruits, which were of small size. At lower concentrations (7.5 and 15 ppm), NAA showed the best results in terms of thinning, size and average weight of fruits, when applied 15 or 20 days after full bloom. The best time for hand thinning was 25 - 30 days after full bloom. This work confirmed the usefulness of NAA as a chemical thinning agent. However, for best fruit size and distribution of fruits on the apple tree, additional hand thinning is recommended.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
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/15815
url https://seer.sct.embrapa.br/index.php/pab/article/view/15815
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/15815/9877
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.19, n.7, jul. 1984; 835-844
Pesquisa Agropecuária Brasileira; v.19, n.7, jul. 1984; 835-844
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
institution EMBRAPA
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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