Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions

Detalhes bibliográficos
Autor(a) principal: Lamarca, Edmir V.
Data de Publicação: 2013
Outros Autores: Prataviera, Juliana S., Borges, Igor F., Delgado, Liliana F., Teixeira, Carmen C., Camargo, Marcelo B. P. de, Faria, José M. R., Barbedo, Claudio J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38627
Resumo: This study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with higher physiological quality were produced in rainy years and when the temperature range was larger. We concluded therefore that hydric and thermal environmental variations during development influence the maturation of Eugenia pyriformis seeds and are able to determine the formation cycle and the final seed quality.
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spelling Maturation of Eugenia pyriformis seeds under different hydric and thermal conditionsSementes recalcitrantesEugenia pyriformisSementes - MaturaçãoRecalcitrants seedsSeeds - MaturationThis study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with higher physiological quality were produced in rainy years and when the temperature range was larger. We concluded therefore that hydric and thermal environmental variations during development influence the maturation of Eugenia pyriformis seeds and are able to determine the formation cycle and the final seed quality.O presente estudo tem como objetivo analisar a maturação e a dispersão de sementes de Eugenia pyriformis Cambess. produzidas em diferentes anos, verificando a influência das variações hídricas e térmicas do ambiente sobre suas características físicas e fisiológicas no momento em que são dispersas. Frutos com diferentes estágios de desenvolvimento foram coletados da região de São Paulo, entre 2003 e 2010 e das regiões de Campinas e Lavras, em 2009 e 2010 e foram analisados quanto ao tamanho e à cor. As sementes foram extraídas dos frutos e analisadas quanto ao conteúdo de massa seca, teor de água, germinação e vigor. Os resultados evidenciaram que a maturação das sementes ocorre de forma dessincronizada à maturação dos frutos, levando em média 45 dias (430 graus-dia), sendo mais demorada em períodos chuvosos ou de temperaturas mais baixas. Sementes de qualidade fisiológica mais elevada foram produzidas em anos chuvosos e quando a amplitude térmica foi maior. Conclui-se, portanto, que as variações hídricas e térmicas do ambiente e do período de formação influenciam sobre a maturação das sementes de uvaieira podendo, inclusive, determinar o ciclo de formação e a qualidade final dessas sementes.Academia Brasileira de Ciências2020-01-23T16:43:07Z2020-01-23T16:43:07Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLAMARCA, E. V. et al. Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 85, n. 1, p. 223-233, 2013.http://repositorio.ufla.br/jspui/handle/1/38627Anais da Academia Brasileira de Ciênciasreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessLamarca, Edmir V.Prataviera, Juliana S.Borges, Igor F.Delgado, Liliana F.Teixeira, Carmen C.Camargo, Marcelo B. P. deFaria, José M. R.Barbedo, Claudio J.eng2020-01-23T16:43:07Zoai:localhost:1/38627Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-01-23T16:43:07Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
title Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
spellingShingle Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
Lamarca, Edmir V.
Sementes recalcitrantes
Eugenia pyriformis
Sementes - Maturação
Recalcitrants seeds
Seeds - Maturation
title_short Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
title_full Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
title_fullStr Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
title_full_unstemmed Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
title_sort Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions
author Lamarca, Edmir V.
author_facet Lamarca, Edmir V.
Prataviera, Juliana S.
Borges, Igor F.
Delgado, Liliana F.
Teixeira, Carmen C.
Camargo, Marcelo B. P. de
Faria, José M. R.
Barbedo, Claudio J.
author_role author
author2 Prataviera, Juliana S.
Borges, Igor F.
Delgado, Liliana F.
Teixeira, Carmen C.
Camargo, Marcelo B. P. de
Faria, José M. R.
Barbedo, Claudio J.
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Lamarca, Edmir V.
Prataviera, Juliana S.
Borges, Igor F.
Delgado, Liliana F.
Teixeira, Carmen C.
Camargo, Marcelo B. P. de
Faria, José M. R.
Barbedo, Claudio J.
dc.subject.por.fl_str_mv Sementes recalcitrantes
Eugenia pyriformis
Sementes - Maturação
Recalcitrants seeds
Seeds - Maturation
topic Sementes recalcitrantes
Eugenia pyriformis
Sementes - Maturação
Recalcitrants seeds
Seeds - Maturation
description This study aims to analyze the maturation and dispersal of Eugenia pyriformis Cambess. seeds produced in different years, and the influence of variation in thermal and hydric environment on seed physical and physiological characteristics at dispersal. Fruits at different developmental stages were harvested in the city of São Paulo between 2003 and 2010, as well as in the cities of Campinas and Lavras, in 2009 and 2010 and analyzed for size and color. The seeds were extracted from the fruits and their dry mass, water content, germination and vigor were assessed. Results showed that seed maturation is unsynchronized to the maturation of the fruit, taking 45 days on average (430 growing degree-days), longer in rainy times or lower temperatures. Seeds with higher physiological quality were produced in rainy years and when the temperature range was larger. We concluded therefore that hydric and thermal environmental variations during development influence the maturation of Eugenia pyriformis seeds and are able to determine the formation cycle and the final seed quality.
publishDate 2013
dc.date.none.fl_str_mv 2013
2020-01-23T16:43:07Z
2020-01-23T16:43:07Z
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 LAMARCA, E. V. et al. Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 85, n. 1, p. 223-233, 2013.
http://repositorio.ufla.br/jspui/handle/1/38627
identifier_str_mv LAMARCA, E. V. et al. Maturation of Eugenia pyriformis seeds under different hydric and thermal conditions. Anais da Academia Brasileira de Ciências, Rio de Janeiro, v. 85, n. 1, p. 223-233, 2013.
url http://repositorio.ufla.br/jspui/handle/1/38627
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv Anais da Academia Brasileira de Ciências
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
_version_ 1815439263321292800

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