Heat requeriment for inducing budbreaking in different apple cultivars

Detalhes bibliográficos
Autor(a) principal: Putti, Gilberto Luiz
Data de Publicação: 2021
Outros Autores: Petri, José Luiz, Mendez, Marta Helena, Leite, Gabriel Berenhauser
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/934
Resumo: The heat requirements for bud burst of six apple cultivars were evaluated. Shoots with 20 to 25cmlength were submitted to 1,150 cold units. After this treatment, shoots were divided in single bud cuttings and treated at different temperatures (5, 10, 15, 20 and 25oC). The mean time of budbreak (MTB), development index, base temperature and degree-days for budbreak for each cultivar was calculated. The increase of temperature after chilling reduced the MTB in all cultivars. The base temperature to calculate the degree-days varied among cultivars, but has not relation with chilling requirement. The development index improves with temperature increase. The heat requirement is stable at temperatures between 10 and 25oC. The heat requirement is independent of the chilling requirement.
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spelling Heat requeriment for inducing budbreaking in different apple cultivarsNecessidades térmicas para indução da brotação de diferentes cultivares de macieiraMalus domesticaBorkh.exigências térmicasnecessidades de friobrotação.Malus domesticatermic requirementschilling requirementsbud breakingThe heat requirements for bud burst of six apple cultivars were evaluated. Shoots with 20 to 25cmlength were submitted to 1,150 cold units. After this treatment, shoots were divided in single bud cuttings and treated at different temperatures (5, 10, 15, 20 and 25oC). The mean time of budbreak (MTB), development index, base temperature and degree-days for budbreak for each cultivar was calculated. The increase of temperature after chilling reduced the MTB in all cultivars. The base temperature to calculate the degree-days varied among cultivars, but has not relation with chilling requirement. The development index improves with temperature increase. The heat requirement is stable at temperatures between 10 and 25oC. The heat requirement is independent of the chilling requirement. O objetivo deste trabalho foi avaliar as exigências térmicas para a brotação de seis cultivares de macieira, duas comerciais (Gala e Fuji) e quatro com potencial para produção comercial no Sul do Brasil (Condessa, Imperatriz, Daiane e Baronesa). Ramos medindo de 20 a 25cm de comprimento foram submetidos a 1.150 unidades de frio e, em seguida, a temperaturas de 5, 10, 15, 20 e 25oC, em câmara de crescimento, para ser avaliado o número de dias para brotação e calculado o índice de desenvolvimento, a temperatura base e osgraus-dia necessários para a brotação. O aumento de temperaturas, de 5 a 25oC, após a superação da necessidade em frio reduz o número de dias para brotação, independentemente da cultivar. A temperatura-base para cálculo dos graus-dia varia com a cultivar, porém não apresenta relação com as necessidades de frio da cultivar. O índice de desenvolvimento aumenta com a temperatura após a superação da dormência. A exigência de calor para a brotação é estável nas temperaturas entre 10 e 25oC. A necessidade de calor independe da necessidade de frio das cultivares. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-05-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/934Agropecuária Catarinense Journal; Vol. 19 No. 2 (2006); 71-74Agropecuária Catarinense; v. 19 n. 2 (2006); 71-742525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/934/832Copyright (c) 2006 Agropecuaria catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPutti, Gilberto LuizPetri, José Luiz Mendez, Marta Helena Leite, Gabriel Berenhauser2021-05-27T12:41:47Zoai:ojs.publicacoes.epagri.sc.gov.br:article/934Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-05-27T12:41:47Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Heat requeriment for inducing budbreaking in different apple cultivars
Necessidades térmicas para indução da brotação de diferentes cultivares de macieira
title Heat requeriment for inducing budbreaking in different apple cultivars
spellingShingle Heat requeriment for inducing budbreaking in different apple cultivars
Putti, Gilberto Luiz
Malus domestica
Borkh.
exigências térmicas
necessidades de frio
brotação.
Malus domestica
termic requirements
chilling requirements
bud breaking
title_short Heat requeriment for inducing budbreaking in different apple cultivars
title_full Heat requeriment for inducing budbreaking in different apple cultivars
title_fullStr Heat requeriment for inducing budbreaking in different apple cultivars
title_full_unstemmed Heat requeriment for inducing budbreaking in different apple cultivars
title_sort Heat requeriment for inducing budbreaking in different apple cultivars
author Putti, Gilberto Luiz
author_facet Putti, Gilberto Luiz
Petri, José Luiz
Mendez, Marta Helena
Leite, Gabriel Berenhauser
author_role author
author2 Petri, José Luiz
Mendez, Marta Helena
Leite, Gabriel Berenhauser
author2_role author
author
author
dc.contributor.author.fl_str_mv Putti, Gilberto Luiz
Petri, José Luiz
Mendez, Marta Helena
Leite, Gabriel Berenhauser
dc.subject.por.fl_str_mv Malus domestica
Borkh.
exigências térmicas
necessidades de frio
brotação.
Malus domestica
termic requirements
chilling requirements
bud breaking
topic Malus domestica
Borkh.
exigências térmicas
necessidades de frio
brotação.
Malus domestica
termic requirements
chilling requirements
bud breaking
description The heat requirements for bud burst of six apple cultivars were evaluated. Shoots with 20 to 25cmlength were submitted to 1,150 cold units. After this treatment, shoots were divided in single bud cuttings and treated at different temperatures (5, 10, 15, 20 and 25oC). The mean time of budbreak (MTB), development index, base temperature and degree-days for budbreak for each cultivar was calculated. The increase of temperature after chilling reduced the MTB in all cultivars. The base temperature to calculate the degree-days varied among cultivars, but has not relation with chilling requirement. The development index improves with temperature increase. The heat requirement is stable at temperatures between 10 and 25oC. The heat requirement is independent of the chilling requirement.
publishDate 2021
dc.date.none.fl_str_mv 2021-05-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/934
url https://publicacoes.epagri.sc.gov.br/rac/article/view/934
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/934/832
dc.rights.driver.fl_str_mv Copyright (c) 2006 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2006 Agropecuaria catarinense
https://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 Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 19 No. 2 (2006); 71-74
Agropecuária Catarinense; v. 19 n. 2 (2006); 71-74
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
_version_ 1754917260716146688

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