Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro

Autores
Gomila, Teofilo; Calvo, Gabriela; Candan, Ana Paula
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Trabajo presentado al XI International Pear Symposium, Argentina, 2010
The Alto Valle of Río Negro is the most important pear production region of Argentina and 50% of this production is of the ‘Williams’ cultivar. The aim of this study was to characterize maturation of ‘Williams’ pear according to ethylene production and determine its correlation with the maturity index traditionally used. During 2009 and 2010 seasons, fruit samples were taken between 93 and 131 days after full bloom (DAFB) to determine maturity indices (flesh firmness, soluble solids, acidity, starch degradation, epidermis color) and ethylene production. DAFB had the greatest correlation with ethylene production. The number of days required to start ethylene production and to reach the climacteric peak decreased as harvest dates advanced, leading to the identification of four maturity groups: immature (<99 DAFB), transition (102-105 DAFB), intermediate (107-124 DAFB) and late (>126 DAFB). None of the assessed maturity indices could discriminate between the groups identified, showing significant differences only in some cases. Flesh firmness values close to or less than 20 pounds made it possible to discriminate between immature and transition groups. Results also showed that changes observed in ethylene production during the last maturity period were not reflected by firmness values, suggesting that other complementary maturity indices should be taken into account.
EEA Alto Valle
Fil: Gomila, Teófilo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Calvo, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Candan, Ana Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fuente
Acta Horticulturae 909 : 745-750 (October 2011)
Materia
Pyrus communis
Pears
Varieties
Maturation
Harvesting
Harvesting Date
Pera
Variedades
Maduración
Cosecha
Fecha de Recolección
Williams Variety
Postharvest
Climacteric Peak
Variedad Williams
Postcosecha
Pico Climatérico
Alto Valle, Río Negro
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/23736
Acceder
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oai_identifier_str oai:localhost:20.500.12123/23736
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network_name_str INTA Digital (INTA)
spelling Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río NegroGomila, TeofiloCalvo, GabrielaCandan, Ana PaulaPyrus communisPearsVarietiesMaturationHarvestingHarvesting DatePeraVariedadesMaduraciónCosechaFecha de RecolecciónWilliams VarietyPostharvestClimacteric PeakVariedad WilliamsPostcosechaPico ClimatéricoAlto Valle, Río NegroTrabajo presentado al XI International Pear Symposium, Argentina, 2010The Alto Valle of Río Negro is the most important pear production region of Argentina and 50% of this production is of the ‘Williams’ cultivar. The aim of this study was to characterize maturation of ‘Williams’ pear according to ethylene production and determine its correlation with the maturity index traditionally used. During 2009 and 2010 seasons, fruit samples were taken between 93 and 131 days after full bloom (DAFB) to determine maturity indices (flesh firmness, soluble solids, acidity, starch degradation, epidermis color) and ethylene production. DAFB had the greatest correlation with ethylene production. The number of days required to start ethylene production and to reach the climacteric peak decreased as harvest dates advanced, leading to the identification of four maturity groups: immature (<99 DAFB), transition (102-105 DAFB), intermediate (107-124 DAFB) and late (>126 DAFB). None of the assessed maturity indices could discriminate between the groups identified, showing significant differences only in some cases. Flesh firmness values close to or less than 20 pounds made it possible to discriminate between immature and transition groups. Results also showed that changes observed in ethylene production during the last maturity period were not reflected by firmness values, suggesting that other complementary maturity indices should be taken into account.EEA Alto ValleFil: Gomila, Teófilo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Calvo, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Candan, Ana Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaISHS2025-09-09T14:17:02Z2025-09-09T14:17:02Z2011-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/23736https://www.actahort.org/books/909/909_92.htm978-90-66055-04-90567-75722406-6168https://doi.org/10.17660/ActaHortic.2011.909.92Acta Horticulturae 909 : 745-750 (October 2011)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-16T09:32:33Zoai:localhost:20.500.12123/23736instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:32:34.151INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
title Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
spellingShingle Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
Gomila, Teofilo
Pyrus communis
Pears
Varieties
Maturation
Harvesting
Harvesting Date
Pera
Variedades
Maduración
Cosecha
Fecha de Recolección
Williams Variety
Postharvest
Climacteric Peak
Variedad Williams
Postcosecha
Pico Climatérico
Alto Valle, Río Negro
title_short Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
title_full Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
title_fullStr Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
title_full_unstemmed Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
title_sort Relationship between maturity index and ethylene production patterns of 'Williams' pears grown in the Alto Valle of Río Negro
dc.creator.none.fl_str_mv Gomila, Teofilo
Calvo, Gabriela
Candan, Ana Paula
author Gomila, Teofilo
author_facet Gomila, Teofilo
Calvo, Gabriela
Candan, Ana Paula
author_role author
author2 Calvo, Gabriela
Candan, Ana Paula
author2_role author
author
dc.subject.none.fl_str_mv Pyrus communis
Pears
Varieties
Maturation
Harvesting
Harvesting Date
Pera
Variedades
Maduración
Cosecha
Fecha de Recolección
Williams Variety
Postharvest
Climacteric Peak
Variedad Williams
Postcosecha
Pico Climatérico
Alto Valle, Río Negro
topic Pyrus communis
Pears
Varieties
Maturation
Harvesting
Harvesting Date
Pera
Variedades
Maduración
Cosecha
Fecha de Recolección
Williams Variety
Postharvest
Climacteric Peak
Variedad Williams
Postcosecha
Pico Climatérico
Alto Valle, Río Negro
dc.description.none.fl_txt_mv Trabajo presentado al XI International Pear Symposium, Argentina, 2010
The Alto Valle of Río Negro is the most important pear production region of Argentina and 50% of this production is of the ‘Williams’ cultivar. The aim of this study was to characterize maturation of ‘Williams’ pear according to ethylene production and determine its correlation with the maturity index traditionally used. During 2009 and 2010 seasons, fruit samples were taken between 93 and 131 days after full bloom (DAFB) to determine maturity indices (flesh firmness, soluble solids, acidity, starch degradation, epidermis color) and ethylene production. DAFB had the greatest correlation with ethylene production. The number of days required to start ethylene production and to reach the climacteric peak decreased as harvest dates advanced, leading to the identification of four maturity groups: immature (<99 DAFB), transition (102-105 DAFB), intermediate (107-124 DAFB) and late (>126 DAFB). None of the assessed maturity indices could discriminate between the groups identified, showing significant differences only in some cases. Flesh firmness values close to or less than 20 pounds made it possible to discriminate between immature and transition groups. Results also showed that changes observed in ethylene production during the last maturity period were not reflected by firmness values, suggesting that other complementary maturity indices should be taken into account.
EEA Alto Valle
Fil: Gomila, Teófilo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Calvo, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Candan, Ana Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
description Trabajo presentado al XI International Pear Symposium, Argentina, 2010
publishDate 2011
dc.date.none.fl_str_mv 2011-10
2025-09-09T14:17:02Z
2025-09-09T14:17:02Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/23736
https://www.actahort.org/books/909/909_92.htm
978-90-66055-04-9
0567-7572
2406-6168
https://doi.org/10.17660/ActaHortic.2011.909.92
url http://hdl.handle.net/20.500.12123/23736
https://www.actahort.org/books/909/909_92.htm
https://doi.org/10.17660/ActaHortic.2011.909.92
identifier_str_mv 978-90-66055-04-9
0567-7572
2406-6168
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ISHS
publisher.none.fl_str_mv ISHS
dc.source.none.fl_str_mv Acta Horticulturae 909 : 745-750 (October 2011)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.712165

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