Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon

Detalhes bibliográficos
Autor(a) principal: Moreira, Rodrigo Amato
Data de Publicação: 2013
Outros Autores: Ramos, José Darlan, Cruz, Maria do Céu Monteiro da, Pantoja, Lílian de Araújo, Santos, Alexandre Soares dos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38493
Resumo: Management practices that maintain carbohydrate reserves in tangerines are necessary in order to ensure good yields. This experiment was carried out with the object of evaluating the levels of carbohydrates in the leaves, and consistency in the production of the Ponkan tangerine (Citrus reticulata Blanco) when subjected to chemical thinning with five concentrations of Ethephon for three consecutive years. The Ponkan tangerine evaluated had been grafted onto Rangpur lime (Citrus limonia Osbeck), cultivated with a spacing of 6.0 x 3.0 m and were 12 years old. The Ethephon concentrations tested were: 0; 200; 400; 600 and 800 mg L-1, applied in January of 2009; 2010 and 2011, when the fruits were of 25 to 30mm in transverse diameter. The experimental design was of randomized blocks, with four blocks and four plants per plot. The levels of soluble leaf carbohydrate, starch and total carbohydrates were evaluated during flowering and harvesting. Fifteen days after application of the concentrations, the percentage of thinning was evaluated. Production, pending load and alternate bearing were evaluated when harvesting. Chemical thinning with Ethephon favors the maintaining of leaf carbohydrates in the Ponkan tangerine. The most effective concentration in reduncing the alternate bearing in the Ponkan tangerine is 600 mg L-1 of Ethephon.
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spelling Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephonTeores de carboidratos nas folhas e regularidade da produção de tangerineira ‘Ponkan’ raleadas com EthephonCitrus reticulata BlancoChemical thinningAlternate bearingEthyleneRaleio químicoTangerineira ‘Ponkan’ - Alternância de produçãoEtilenoManagement practices that maintain carbohydrate reserves in tangerines are necessary in order to ensure good yields. This experiment was carried out with the object of evaluating the levels of carbohydrates in the leaves, and consistency in the production of the Ponkan tangerine (Citrus reticulata Blanco) when subjected to chemical thinning with five concentrations of Ethephon for three consecutive years. The Ponkan tangerine evaluated had been grafted onto Rangpur lime (Citrus limonia Osbeck), cultivated with a spacing of 6.0 x 3.0 m and were 12 years old. The Ethephon concentrations tested were: 0; 200; 400; 600 and 800 mg L-1, applied in January of 2009; 2010 and 2011, when the fruits were of 25 to 30mm in transverse diameter. The experimental design was of randomized blocks, with four blocks and four plants per plot. The levels of soluble leaf carbohydrate, starch and total carbohydrates were evaluated during flowering and harvesting. Fifteen days after application of the concentrations, the percentage of thinning was evaluated. Production, pending load and alternate bearing were evaluated when harvesting. Chemical thinning with Ethephon favors the maintaining of leaf carbohydrates in the Ponkan tangerine. The most effective concentration in reduncing the alternate bearing in the Ponkan tangerine is 600 mg L-1 of Ethephon.Práticas de manejo que proporcionem a manutenção das reservas de carboidratos nas tangerineiras são necessárias para garantir boas produtividades. O experimento foi conduzido com o objetivo de avaliar os teores de carboidratos foliares e a regularidade da produção de tangerineira 'Ponkan' (Citrus reticulata Blanco) submetida ao raleio químico com cinco concentrações de Ethephon por três anos consecutivos. As tangerineiras 'Ponkan' avaliadas estavam enxertadas sobre limoeiro 'Cravo' (Citrus limonia Osbeck), cultivadas no espaçamento 6,0 x 3,0 m e com 12 anos de idade. As concentrações de Ethephon testadas foram: 0; 200; 400; 600 e 800 mg L-1, aplicadas quando as frutas estavam com 25 a 30 mm de diâmetro transversal, nos meses de janeiro de 2009, de 2010 e de 2011. O delineamento experimental utilizado foi em blocos casualizados, com quatro blocos e quatro plantas por parcela. Foram avaliados os teores foliares de carboidratos solúveis, de amido e de carboidratos totais nos períodos de floração e de colheita. Após 15 dias da aplicação das concentrações avaliou-se o percentual de raleio. Nas colheitas foram avaliadas a produção, a carga pendente e a alternância de produção. O raleio químico com Ethephon favorece a manutenção dos teores de carboidratos foliares na tangerineira 'Ponkan'. A concentração mais eficiente para reduzir a alternância de produção em tangerineiras 'Ponkan' é 600 mg L-1 de Ethephon.Universidade Federal do Ceará2020-01-09T19:59:33Z2020-01-09T19:59:33Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMOREIRA, R. A. et al. Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon. Revista Ciência Agronômica, Fortaleza, v. 44, n. 3, p. 571-577, jul./set. 2013.http://repositorio.ufla.br/jspui/handle/1/38493Revista Ciência Agronômicareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessMoreira, Rodrigo AmatoRamos, José DarlanCruz, Maria do Céu Monteiro daPantoja, Lílian de AraújoSantos, Alexandre Soares doseng2023-05-26T18:50:26Zoai:localhost:1/38493Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:50:26Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
Teores de carboidratos nas folhas e regularidade da produção de tangerineira ‘Ponkan’ raleadas com Ethephon
title Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
spellingShingle Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
Moreira, Rodrigo Amato
Citrus reticulata Blanco
Chemical thinning
Alternate bearing
Ethylene
Raleio químico
Tangerineira ‘Ponkan’ - Alternância de produção
Etileno
title_short Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
title_full Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
title_fullStr Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
title_full_unstemmed Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
title_sort Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
author Moreira, Rodrigo Amato
author_facet Moreira, Rodrigo Amato
Ramos, José Darlan
Cruz, Maria do Céu Monteiro da
Pantoja, Lílian de Araújo
Santos, Alexandre Soares dos
author_role author
author2 Ramos, José Darlan
Cruz, Maria do Céu Monteiro da
Pantoja, Lílian de Araújo
Santos, Alexandre Soares dos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Moreira, Rodrigo Amato
Ramos, José Darlan
Cruz, Maria do Céu Monteiro da
Pantoja, Lílian de Araújo
Santos, Alexandre Soares dos
dc.subject.por.fl_str_mv Citrus reticulata Blanco
Chemical thinning
Alternate bearing
Ethylene
Raleio químico
Tangerineira ‘Ponkan’ - Alternância de produção
Etileno
topic Citrus reticulata Blanco
Chemical thinning
Alternate bearing
Ethylene
Raleio químico
Tangerineira ‘Ponkan’ - Alternância de produção
Etileno
description Management practices that maintain carbohydrate reserves in tangerines are necessary in order to ensure good yields. This experiment was carried out with the object of evaluating the levels of carbohydrates in the leaves, and consistency in the production of the Ponkan tangerine (Citrus reticulata Blanco) when subjected to chemical thinning with five concentrations of Ethephon for three consecutive years. The Ponkan tangerine evaluated had been grafted onto Rangpur lime (Citrus limonia Osbeck), cultivated with a spacing of 6.0 x 3.0 m and were 12 years old. The Ethephon concentrations tested were: 0; 200; 400; 600 and 800 mg L-1, applied in January of 2009; 2010 and 2011, when the fruits were of 25 to 30mm in transverse diameter. The experimental design was of randomized blocks, with four blocks and four plants per plot. The levels of soluble leaf carbohydrate, starch and total carbohydrates were evaluated during flowering and harvesting. Fifteen days after application of the concentrations, the percentage of thinning was evaluated. Production, pending load and alternate bearing were evaluated when harvesting. Chemical thinning with Ethephon favors the maintaining of leaf carbohydrates in the Ponkan tangerine. The most effective concentration in reduncing the alternate bearing in the Ponkan tangerine is 600 mg L-1 of Ethephon.
publishDate 2013
dc.date.none.fl_str_mv 2013
2020-01-09T19:59:33Z
2020-01-09T19:59:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv MOREIRA, R. A. et al. Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon. Revista Ciência Agronômica, Fortaleza, v. 44, n. 3, p. 571-577, jul./set. 2013.
http://repositorio.ufla.br/jspui/handle/1/38493
identifier_str_mv MOREIRA, R. A. et al. Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon. Revista Ciência Agronômica, Fortaleza, v. 44, n. 3, p. 571-577, jul./set. 2013.
url http://repositorio.ufla.br/jspui/handle/1/38493
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Ceará
publisher.none.fl_str_mv Universidade Federal do Ceará
dc.source.none.fl_str_mv Revista Ciência Agronômica
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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