Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene
- Autores
- Raffo Benegas, Maria Dolores; Sanchez, Enrique Eduardo; Sozzi, Gabriel Oscar
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Trabajo presentado al X International Pear Symposium, Peniche (Portugal), mayo de 2007
An experiment was performed on pears cv. Williams/seedling rootstock to evaluate the effect of intercepted PAR on fruit firmness and color, upon harvest and subsequent response to postharvest application of 1-methylcyclopropene (1-MCP). Four treatments were applied 30 days after full bloom, each treatment covering the harvest on 4 trees: (T1) sun pears (fruit located in the outer canopy, fully exposed to sunlight); (T2) +UV pears (a polyester film cover, with high transmittance over the UV waveband, was placed on top of the northern side of the canopy); (T3) –UV pears (a polyester film cover, which cuts off all UV radiation below 310 nm, was applied on top of the northern side of the canopy); (T4) shaded pears (fruit located in the inner canopy, a low radiation zone). Data loggers were placed on random fruits to measure temperature over the growing season. At harvest, 75 pears per treatment were picked and firmness and color were measured on 25 randomly selected fruit. The remaining 50 pears were split in two equal batches, one of them being exposed to 400 µl L-1 1-MCP. 1-MCP-treated and untreated fruit were stored at 18°C for 23 and 13 days respectively. At harvest, sun pears, +UV pears and –UV pears were firmer than shaded pears. Also, sun pears showed higher firmness values after 13 days. Response to 1-MCP was significantly different (P<0.05) between treatments. After a 23-day storage, 1-MCP-treated sun pears showed the highest firmness (36 N), followed by +UV and –UV pears (17 N) and shaded pears (7 N). L, C and h° values (fruit color) were the highest in shaded pears, while fruit fully exposed to sunlight showed the lowest values. Fruit response variability to the various postharvest treatments is a major problem for the fresh-fruit industry nowadays. According to our results, the different preharvest light and/or temperature exposures may be a possible reason for the variability of the response to 1-MCP treatments.
EEA Alto Valle
Fil: Raffo Benegas, María Dolores. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Sánchez, Enrique Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Sozzi, Gabriel Oscar. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
Fil: Sozzi, Gabriel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Fuente
- Acta Horticulturae 800 : 1035-1040 (2008)
- Materia
-
Pyrus communis
Radiación
Color
Radiation
Colour
Pears
Daylight
Pera
Luz del Día
Fruit Firmness
Preharvest Conditions
1-Methylcyclopropene
Firmeza del Fruto
Condiciones Precoseha
1-MCP
1-Metilciclopropeno - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/23414
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Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-MethylcyclopropeneRaffo Benegas, Maria DoloresSanchez, Enrique EduardoSozzi, Gabriel OscarPyrus communisRadiaciónColorRadiationColourPearsDaylightPeraLuz del DíaFruit FirmnessPreharvest Conditions1-MethylcyclopropeneFirmeza del FrutoCondiciones Precoseha1-MCP1-MetilciclopropenoTrabajo presentado al X International Pear Symposium, Peniche (Portugal), mayo de 2007An experiment was performed on pears cv. Williams/seedling rootstock to evaluate the effect of intercepted PAR on fruit firmness and color, upon harvest and subsequent response to postharvest application of 1-methylcyclopropene (1-MCP). Four treatments were applied 30 days after full bloom, each treatment covering the harvest on 4 trees: (T1) sun pears (fruit located in the outer canopy, fully exposed to sunlight); (T2) +UV pears (a polyester film cover, with high transmittance over the UV waveband, was placed on top of the northern side of the canopy); (T3) –UV pears (a polyester film cover, which cuts off all UV radiation below 310 nm, was applied on top of the northern side of the canopy); (T4) shaded pears (fruit located in the inner canopy, a low radiation zone). Data loggers were placed on random fruits to measure temperature over the growing season. At harvest, 75 pears per treatment were picked and firmness and color were measured on 25 randomly selected fruit. The remaining 50 pears were split in two equal batches, one of them being exposed to 400 µl L-1 1-MCP. 1-MCP-treated and untreated fruit were stored at 18°C for 23 and 13 days respectively. At harvest, sun pears, +UV pears and –UV pears were firmer than shaded pears. Also, sun pears showed higher firmness values after 13 days. Response to 1-MCP was significantly different (P<0.05) between treatments. After a 23-day storage, 1-MCP-treated sun pears showed the highest firmness (36 N), followed by +UV and –UV pears (17 N) and shaded pears (7 N). L, C and h° values (fruit color) were the highest in shaded pears, while fruit fully exposed to sunlight showed the lowest values. Fruit response variability to the various postharvest treatments is a major problem for the fresh-fruit industry nowadays. According to our results, the different preharvest light and/or temperature exposures may be a possible reason for the variability of the response to 1-MCP treatments.EEA Alto ValleFil: Raffo Benegas, María Dolores. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Sánchez, Enrique Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Sozzi, Gabriel Oscar. Universidad de Buenos Aires. Facultad de Agronomía; ArgentinaFil: Sozzi, Gabriel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaInternational Society for Horticultural Science (ISHS)2025-08-12T14:25:39Z2025-08-12T14:25:39Z2008-10-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/23414https://www.actahort.org/books/800/800_141.htm978-90-66056-11-40567-7572 (impreso)2406-6168 (electrónico)https://doi.org/10.17660/ActaHortic.2008.800.141Acta Horticulturae 800 : 1035-1040 (2008)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)2025-09-29T13:47:28Zoai:localhost:20.500.12123/23414instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:47:28.477INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
dc.title.none.fl_str_mv |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
title |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
spellingShingle |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene Raffo Benegas, Maria Dolores Pyrus communis Radiación Color Radiation Colour Pears Daylight Pera Luz del Día Fruit Firmness Preharvest Conditions 1-Methylcyclopropene Firmeza del Fruto Condiciones Precoseha 1-MCP 1-Metilciclopropeno |
title_short |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
title_full |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
title_fullStr |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
title_full_unstemmed |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
title_sort |
Exposure to Direct Sunlight during the Growing Season Delays Postharvest Softening of ‘Williams’ Pears and Improves Their Response to 1-Methylcyclopropene |
dc.creator.none.fl_str_mv |
Raffo Benegas, Maria Dolores Sanchez, Enrique Eduardo Sozzi, Gabriel Oscar |
author |
Raffo Benegas, Maria Dolores |
author_facet |
Raffo Benegas, Maria Dolores Sanchez, Enrique Eduardo Sozzi, Gabriel Oscar |
author_role |
author |
author2 |
Sanchez, Enrique Eduardo Sozzi, Gabriel Oscar |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Pyrus communis Radiación Color Radiation Colour Pears Daylight Pera Luz del Día Fruit Firmness Preharvest Conditions 1-Methylcyclopropene Firmeza del Fruto Condiciones Precoseha 1-MCP 1-Metilciclopropeno |
topic |
Pyrus communis Radiación Color Radiation Colour Pears Daylight Pera Luz del Día Fruit Firmness Preharvest Conditions 1-Methylcyclopropene Firmeza del Fruto Condiciones Precoseha 1-MCP 1-Metilciclopropeno |
dc.description.none.fl_txt_mv |
Trabajo presentado al X International Pear Symposium, Peniche (Portugal), mayo de 2007 An experiment was performed on pears cv. Williams/seedling rootstock to evaluate the effect of intercepted PAR on fruit firmness and color, upon harvest and subsequent response to postharvest application of 1-methylcyclopropene (1-MCP). Four treatments were applied 30 days after full bloom, each treatment covering the harvest on 4 trees: (T1) sun pears (fruit located in the outer canopy, fully exposed to sunlight); (T2) +UV pears (a polyester film cover, with high transmittance over the UV waveband, was placed on top of the northern side of the canopy); (T3) –UV pears (a polyester film cover, which cuts off all UV radiation below 310 nm, was applied on top of the northern side of the canopy); (T4) shaded pears (fruit located in the inner canopy, a low radiation zone). Data loggers were placed on random fruits to measure temperature over the growing season. At harvest, 75 pears per treatment were picked and firmness and color were measured on 25 randomly selected fruit. The remaining 50 pears were split in two equal batches, one of them being exposed to 400 µl L-1 1-MCP. 1-MCP-treated and untreated fruit were stored at 18°C for 23 and 13 days respectively. At harvest, sun pears, +UV pears and –UV pears were firmer than shaded pears. Also, sun pears showed higher firmness values after 13 days. Response to 1-MCP was significantly different (P<0.05) between treatments. After a 23-day storage, 1-MCP-treated sun pears showed the highest firmness (36 N), followed by +UV and –UV pears (17 N) and shaded pears (7 N). L, C and h° values (fruit color) were the highest in shaded pears, while fruit fully exposed to sunlight showed the lowest values. Fruit response variability to the various postharvest treatments is a major problem for the fresh-fruit industry nowadays. According to our results, the different preharvest light and/or temperature exposures may be a possible reason for the variability of the response to 1-MCP treatments. EEA Alto Valle Fil: Raffo Benegas, María Dolores. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina Fil: Sánchez, Enrique Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina Fil: Sozzi, Gabriel Oscar. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Sozzi, Gabriel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Trabajo presentado al X International Pear Symposium, Peniche (Portugal), mayo de 2007 |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10-31 2025-08-12T14:25:39Z 2025-08-12T14:25:39Z |
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/20.500.12123/23414 https://www.actahort.org/books/800/800_141.htm 978-90-66056-11-4 0567-7572 (impreso) 2406-6168 (electrónico) https://doi.org/10.17660/ActaHortic.2008.800.141 |
url |
http://hdl.handle.net/20.500.12123/23414 https://www.actahort.org/books/800/800_141.htm https://doi.org/10.17660/ActaHortic.2008.800.141 |
identifier_str_mv |
978-90-66056-11-4 0567-7572 (impreso) 2406-6168 (electrónico) |
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 |
International Society for Horticultural Science (ISHS) |
publisher.none.fl_str_mv |
International Society for Horticultural Science (ISHS) |
dc.source.none.fl_str_mv |
Acta Horticulturae 800 : 1035-1040 (2008) 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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1844619207859240960 |
score |
12.559606 |