Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears

Autores
Curetti, Mariela; Rodriguez, Rodolfo Oscar; Magdalena, Jorge Carlos; Rodriguez, Andrea Betiana
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Trabajo presentado al XI International Pear Symposium, Argentina, 2010
Benzyladenine (BA) is an effective thinning agent for Williams pear, the most important cultivar in Argentina. The aims of this research were: to find the minimum effective BA rate for increasing fruit size in Williams pear, and to improve application efficiency by modifying volume rate and adding a silicone surfactant. Trials were carried out over three seasons (2007-2010). In the two first seasons different rates were evaluated: 50, 100, 150 and 200 mg/L. Applications were made when fruit diameters were 10-12 mm. In the third season, two application volumes (450 and 1300 L/ha) and the addition of a silicone surfactant (Silwet®) were evaluated with BA at a rate of 100 mg/L. Variables determined were: coverage percentage, fruit drop, fruit number per 100 flower clusters (fruit set), fruit number per branch cross sectional area, fruit number per tree, fruit weight and distribution of yield depending on fruit size. No significant differences between 150 and 200 mg/L BA were found. These treatments reduced fruit set by 20-40% and fruit number per tree by 10-35% compared to the control. At harvest, fruit weight was improved by 10-20%, yield of small fruit (diameter <65 mm) was reduced by 40-65% and the yield of large fruit (diameter >70mm) increased by 60-100%. The 100 mg/L BA rate was less effective with only 10-20% reduction in fruit set. At harvest, this treatment showed 5% higher fruit weight, 10% less yield of small fruit and up to 30% higher yield of large fruit. The lowest BA rate (50 mg/L) did not stimulate a thinning effect and/or increase fruit size at harvest. In the third season, the surfactant addition improved the percentage coverage and efficacy of BA on fruit size at harvest.
EEA Alto Valle
Fil: Curetti, Mariela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Rodríguez, Rodolfo Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Magdalena, Jorge Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Rodríguez, Andrea Betiana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fuente
Acta Horticulturae 909 : 395-401 (2011)
Materia
Pyrus communis
Pera
Sustancia de Crecimiento Vegetal
Citoquinina
6-Benziladenina
Pears
Plant Growth Substances
Cytokinin
6-Benzylaminopurine
Varieties
Variedades
Bartlett Variety
Growth Regulator
Benzyladenine
Variedad Bartlett
Regulador de Crecimiento
BA
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:20.500.12123/23557

id INTADig_0f2649f8c46048c31b52f6b6519a0315
oai_identifier_str oai:localhost:20.500.12123/23557
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pearsCuretti, MarielaRodriguez, Rodolfo OscarMagdalena, Jorge CarlosRodriguez, Andrea BetianaPyrus communisPeraSustancia de Crecimiento VegetalCitoquinina6-BenziladeninaPearsPlant Growth SubstancesCytokinin6-BenzylaminopurineVarietiesVariedadesBartlett VarietyGrowth RegulatorBenzyladenineVariedad BartlettRegulador de CrecimientoBATrabajo presentado al XI International Pear Symposium, Argentina, 2010Benzyladenine (BA) is an effective thinning agent for Williams pear, the most important cultivar in Argentina. The aims of this research were: to find the minimum effective BA rate for increasing fruit size in Williams pear, and to improve application efficiency by modifying volume rate and adding a silicone surfactant. Trials were carried out over three seasons (2007-2010). In the two first seasons different rates were evaluated: 50, 100, 150 and 200 mg/L. Applications were made when fruit diameters were 10-12 mm. In the third season, two application volumes (450 and 1300 L/ha) and the addition of a silicone surfactant (Silwet®) were evaluated with BA at a rate of 100 mg/L. Variables determined were: coverage percentage, fruit drop, fruit number per 100 flower clusters (fruit set), fruit number per branch cross sectional area, fruit number per tree, fruit weight and distribution of yield depending on fruit size. No significant differences between 150 and 200 mg/L BA were found. These treatments reduced fruit set by 20-40% and fruit number per tree by 10-35% compared to the control. At harvest, fruit weight was improved by 10-20%, yield of small fruit (diameter <65 mm) was reduced by 40-65% and the yield of large fruit (diameter >70mm) increased by 60-100%. The 100 mg/L BA rate was less effective with only 10-20% reduction in fruit set. At harvest, this treatment showed 5% higher fruit weight, 10% less yield of small fruit and up to 30% higher yield of large fruit. The lowest BA rate (50 mg/L) did not stimulate a thinning effect and/or increase fruit size at harvest. In the third season, the surfactant addition improved the percentage coverage and efficacy of BA on fruit size at harvest.EEA Alto ValleFil: Curetti, Mariela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Rodríguez, Rodolfo Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Magdalena, Jorge Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaFil: Rodríguez, Andrea Betiana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; ArgentinaISHS2025-08-26T11:40:56Z2025-08-26T11:40:56Z2011-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/23557https://www.actahort.org/books/909/909_44.htm978-90-66055-04-90567-75722406-6168https://doi.org/10.17660/ActaHortic.2011.909.44Acta Horticulturae 909 : 395-401 (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)2025-09-29T13:47:29Zoai:localhost:20.500.12123/23557instacron: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 13:47:29.516INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
title Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
spellingShingle Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
Curetti, Mariela
Pyrus communis
Pera
Sustancia de Crecimiento Vegetal
Citoquinina
6-Benziladenina
Pears
Plant Growth Substances
Cytokinin
6-Benzylaminopurine
Varieties
Variedades
Bartlett Variety
Growth Regulator
Benzyladenine
Variedad Bartlett
Regulador de Crecimiento
BA
title_short Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
title_full Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
title_fullStr Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
title_full_unstemmed Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
title_sort Effect of concentration, application volume and addition of a surfactant on response to benzyladenine as thinning agent in 'Williams' pears
dc.creator.none.fl_str_mv Curetti, Mariela
Rodriguez, Rodolfo Oscar
Magdalena, Jorge Carlos
Rodriguez, Andrea Betiana
author Curetti, Mariela
author_facet Curetti, Mariela
Rodriguez, Rodolfo Oscar
Magdalena, Jorge Carlos
Rodriguez, Andrea Betiana
author_role author
author2 Rodriguez, Rodolfo Oscar
Magdalena, Jorge Carlos
Rodriguez, Andrea Betiana
author2_role author
author
author
dc.subject.none.fl_str_mv Pyrus communis
Pera
Sustancia de Crecimiento Vegetal
Citoquinina
6-Benziladenina
Pears
Plant Growth Substances
Cytokinin
6-Benzylaminopurine
Varieties
Variedades
Bartlett Variety
Growth Regulator
Benzyladenine
Variedad Bartlett
Regulador de Crecimiento
BA
topic Pyrus communis
Pera
Sustancia de Crecimiento Vegetal
Citoquinina
6-Benziladenina
Pears
Plant Growth Substances
Cytokinin
6-Benzylaminopurine
Varieties
Variedades
Bartlett Variety
Growth Regulator
Benzyladenine
Variedad Bartlett
Regulador de Crecimiento
BA
dc.description.none.fl_txt_mv Trabajo presentado al XI International Pear Symposium, Argentina, 2010
Benzyladenine (BA) is an effective thinning agent for Williams pear, the most important cultivar in Argentina. The aims of this research were: to find the minimum effective BA rate for increasing fruit size in Williams pear, and to improve application efficiency by modifying volume rate and adding a silicone surfactant. Trials were carried out over three seasons (2007-2010). In the two first seasons different rates were evaluated: 50, 100, 150 and 200 mg/L. Applications were made when fruit diameters were 10-12 mm. In the third season, two application volumes (450 and 1300 L/ha) and the addition of a silicone surfactant (Silwet®) were evaluated with BA at a rate of 100 mg/L. Variables determined were: coverage percentage, fruit drop, fruit number per 100 flower clusters (fruit set), fruit number per branch cross sectional area, fruit number per tree, fruit weight and distribution of yield depending on fruit size. No significant differences between 150 and 200 mg/L BA were found. These treatments reduced fruit set by 20-40% and fruit number per tree by 10-35% compared to the control. At harvest, fruit weight was improved by 10-20%, yield of small fruit (diameter <65 mm) was reduced by 40-65% and the yield of large fruit (diameter >70mm) increased by 60-100%. The 100 mg/L BA rate was less effective with only 10-20% reduction in fruit set. At harvest, this treatment showed 5% higher fruit weight, 10% less yield of small fruit and up to 30% higher yield of large fruit. The lowest BA rate (50 mg/L) did not stimulate a thinning effect and/or increase fruit size at harvest. In the third season, the surfactant addition improved the percentage coverage and efficacy of BA on fruit size at harvest.
EEA Alto Valle
Fil: Curetti, Mariela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Rodríguez, Rodolfo Oscar. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Magdalena, Jorge Carlos. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Alto Valle; Argentina
Fil: Rodríguez, Andrea Betiana. 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
2025-08-26T11:40:56Z
2025-08-26T11:40:56Z
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/20.500.12123/23557
https://www.actahort.org/books/909/909_44.htm
978-90-66055-04-9
0567-7572
2406-6168
https://doi.org/10.17660/ActaHortic.2011.909.44
url http://hdl.handle.net/20.500.12123/23557
https://www.actahort.org/books/909/909_44.htm
https://doi.org/10.17660/ActaHortic.2011.909.44
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 : 395-401 (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
_version_ 1844619208534523904
score 12.559606