Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning

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/1/38497
Resumo: This study was performed to verify the influence of the levels of leaf carbohydrates on the fruit quality of 'Ponkan' mandarin trees subjected to chemical thinning for three years using different Ethephon concentrations. Five concentrations of Ethephon were tested: 0, 200, 400, 600 and 800 mg L-1, which were applied during the stage of fruit development when fruits were from 25 to 30 mm in transverse diameter. The experimental design was in randomized blocks, with four blocks and four plants per plot. Interactions were observed between the concentrations of Ethephon and the year of assessment for the percentage of thinning, transverse diameter, longitudinal diameter, mass, soluble solids, acidity and the ratio of fruits. For the contents of carbohydrates, there was an interaction between the concentrations of Ethephon, the years of assessment and the leaf sampling times (flowering and harvest). Maintenance of high levels of leaf carbohydrates resulted in improvement of the quality of 'Ponkan' mandarin fruits. Chemical thinning conducted with Ethephon concentration of 600 mg L-1 maintained carbohydrate levels suitable to improve the quality of 'Ponkan' mandarin fruits.
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spelling Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinningCarboidratos foliares na qualidade de frutos de tangerineira ‘Ponkan’ sob raleio químicoCitrus reticulata BlancoEthyleneGrowth regulatorsEtilenoReguladores de crescimentoThis study was performed to verify the influence of the levels of leaf carbohydrates on the fruit quality of 'Ponkan' mandarin trees subjected to chemical thinning for three years using different Ethephon concentrations. Five concentrations of Ethephon were tested: 0, 200, 400, 600 and 800 mg L-1, which were applied during the stage of fruit development when fruits were from 25 to 30 mm in transverse diameter. The experimental design was in randomized blocks, with four blocks and four plants per plot. Interactions were observed between the concentrations of Ethephon and the year of assessment for the percentage of thinning, transverse diameter, longitudinal diameter, mass, soluble solids, acidity and the ratio of fruits. For the contents of carbohydrates, there was an interaction between the concentrations of Ethephon, the years of assessment and the leaf sampling times (flowering and harvest). Maintenance of high levels of leaf carbohydrates resulted in improvement of the quality of 'Ponkan' mandarin fruits. Chemical thinning conducted with Ethephon concentration of 600 mg L-1 maintained carbohydrate levels suitable to improve the quality of 'Ponkan' mandarin fruits.O trabalho foi realizado com o objetivo de avaliar a influência dos teores de carboidratos na qualidade de frutos de plantas de tangerineira 'Ponkan' submetidas ao raleio químico por três anos com diferentes concentrações de Ethephon. Foram testadas cinco concentrações de Ethephon: 0; 200; 400; 600 e 800 mg L-1, aplicadas quando os frutos estavam no estádio de desenvolvimento de 25 a 30 mm de diâmetro transversal. O delineamento experimental foi em blocos casualizados, com quatro blocos e quatro plantas por parcela. Foram observadas interações entre as concentrações de Ethephon e os anos de avaliação para o percentual de raleio, diâmetro transversal, diâmetro longitudinal, massa, sólidos solúveis, acidez titulável e ratio dos frutos. Para os teores de carboidratos foliares ocorreu interação entre concentrações de Ethephon, anos de avaliação e época de amostragem das folhas (floração e colheita). A manutenção dos teores de carboidratos foliares elevados proporcionou a melhoria na qualidade dos frutos de tangerineira 'Ponkan'. O raleio realizado com a concentração de 600 mg L-1 de Ethephon manteve os teores de carboidratos adequados para melhorar a qualidade de tangerinas 'Ponkan'.Editora da Universidade Estadual de Maringá (EDUEM)2020-01-10T19:10:11Z2020-01-10T19:10:11Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMOREIRA, R. A. et al. Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning. Acta Scientiarum. Agronomy, Maringá, v. 35, n. 3, p. 349-356, July/Sept. 2013.http://repositorio.ufla.br/jspui/handle/1/38497Acta Scientiarum. Agronomyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessMoreira, Rodrigo AmatoRamos, José DarlanCruz, Maria do Céu Monteiro daPantoja, Lílian de AraújoSantos, Alexandre Soares doseng2020-01-10T19:10:11Zoai:localhost:1/38497Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-01-10T19:10:11Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
Carboidratos foliares na qualidade de frutos de tangerineira ‘Ponkan’ sob raleio químico
title Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
spellingShingle Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
Moreira, Rodrigo Amato
Citrus reticulata Blanco
Ethylene
Growth regulators
Etileno
Reguladores de crescimento
title_short Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
title_full Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
title_fullStr Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
title_full_unstemmed Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
title_sort Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning
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
Ethylene
Growth regulators
Etileno
Reguladores de crescimento
topic Citrus reticulata Blanco
Ethylene
Growth regulators
Etileno
Reguladores de crescimento
description This study was performed to verify the influence of the levels of leaf carbohydrates on the fruit quality of 'Ponkan' mandarin trees subjected to chemical thinning for three years using different Ethephon concentrations. Five concentrations of Ethephon were tested: 0, 200, 400, 600 and 800 mg L-1, which were applied during the stage of fruit development when fruits were from 25 to 30 mm in transverse diameter. The experimental design was in randomized blocks, with four blocks and four plants per plot. Interactions were observed between the concentrations of Ethephon and the year of assessment for the percentage of thinning, transverse diameter, longitudinal diameter, mass, soluble solids, acidity and the ratio of fruits. For the contents of carbohydrates, there was an interaction between the concentrations of Ethephon, the years of assessment and the leaf sampling times (flowering and harvest). Maintenance of high levels of leaf carbohydrates resulted in improvement of the quality of 'Ponkan' mandarin fruits. Chemical thinning conducted with Ethephon concentration of 600 mg L-1 maintained carbohydrate levels suitable to improve the quality of 'Ponkan' mandarin fruits.
publishDate 2013
dc.date.none.fl_str_mv 2013
2020-01-10T19:10:11Z
2020-01-10T19:10:11Z
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. Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning. Acta Scientiarum. Agronomy, Maringá, v. 35, n. 3, p. 349-356, July/Sept. 2013.
http://repositorio.ufla.br/jspui/handle/1/38497
identifier_str_mv MOREIRA, R. A. et al. Leaf carbohydrates in 'Ponkan' mandarin fruit quality under chemical thinning. Acta Scientiarum. Agronomy, Maringá, v. 35, n. 3, p. 349-356, July/Sept. 2013.
url http://repositorio.ufla.br/jspui/handle/1/38497
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá (EDUEM)
publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá (EDUEM)
dc.source.none.fl_str_mv Acta Scientiarum. Agronomy
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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