Carbohydrate levels in the leaves and production consistency of the ponkan tangerine when thinned out with ethephon
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
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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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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1807835182121615360 |