Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/976 |
Resumo: | Temperature is one of the most important environmental factors, affecting establishment and crop development. Seed germination is particularly affected by temperature. The aim of this work was to evaluate the tolerance temperatures during germination in several bean cultivars. The seeds were submitted to temperatures ranging from 8 to 45°C in thermal block apparatus and primary root protrusion time. The number of germinated seedlings was scored for each cultivar and temperature. High temperatures (≅40°C and upper) strongly inhibit cultivar germination, but 'IAPAR-57', ‘Guarumbé’ and ‘Iratim’ appear to be more sensitive to high temperature stress than others. ‘IAC Carioca 80SH’ PP and 'IAPAR-57' were less tolerant to low temperatures. The thermal time model could describe, relatively well, the time-course of the cultivars isothermal germination, which differed in the thermal time amount required to germinate. 'IAC Carioca-Akytã' needs fewer degrees per day to achieve germination than others, whereas the cultivar 'Campeão-1' requires more thermal time. |
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Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976Efeitos da temperatura na germinação de sementes em culturas de feijões comuns (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976feijãotemperatura cardealgraus por diagerminabilidadevelocidade5.01.03.00-8 FitotecniaTemperature is one of the most important environmental factors, affecting establishment and crop development. Seed germination is particularly affected by temperature. The aim of this work was to evaluate the tolerance temperatures during germination in several bean cultivars. The seeds were submitted to temperatures ranging from 8 to 45°C in thermal block apparatus and primary root protrusion time. The number of germinated seedlings was scored for each cultivar and temperature. High temperatures (≅40°C and upper) strongly inhibit cultivar germination, but 'IAPAR-57', ‘Guarumbé’ and ‘Iratim’ appear to be more sensitive to high temperature stress than others. ‘IAC Carioca 80SH’ PP and 'IAPAR-57' were less tolerant to low temperatures. The thermal time model could describe, relatively well, the time-course of the cultivars isothermal germination, which differed in the thermal time amount required to germinate. 'IAC Carioca-Akytã' needs fewer degrees per day to achieve germination than others, whereas the cultivar 'Campeão-1' requires more thermal time.A temperatura é um fator ambiental importante, afetando a germinação de sementes, o estabelecimento e o desenvolvimento de culturas. O objetivo deste trabalho foi avaliar as temperaturas de tolerância durante germinação em vários cultivares de feijão e determinar o valor de parâmetros térmicos para a germinação de cultivares. Sementes foram submetidas a temperaturas variando de 8°C a 45°C, em bloco termo-gradiente até a protrusão da raiz primária. Temperaturas altas (40°C ou mais) inibem fortemente a germinação dos cultivares. 'IAPAR-57, 'Guarumbé' e 'Iratim' parecem ser mais sensíveis à temperatura alta que outros. 'IAC Carioca 80SH ' PP e 'IAPAR-57' foram menos tolerantes a baixas temperaturas. O modelo termal de tempo poderia descrever relativamente bem o curso da germinação em isotermas dos cultivares que diferiram na quantia de graus-dia para germinar. 'IAC Carioca-Akytã' precisa de menos graus-dia-1 para alcançar a germinação que outros, O cultivar' Campeão-1 requer mais graus-dia-1.Universidade Estadual de Maringá2008-03-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/97610.4025/actasciagron.v28i2.976Acta Scientiarum. Agronomy; Vol 28 No 2 (2006); 155-164Acta Scientiarum. Agronomy; v. 28 n. 2 (2006); 155-1641807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/976/568Machado Neto, Nelson BarbosaPrioli, Maria ReginaGatti, Ana BeatrizCardoso, Victor José Mendesinfo:eu-repo/semantics/openAccess2022-11-23T18:37:18Zoai:periodicos.uem.br/ojs:article/976Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37:18Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 Efeitos da temperatura na germinação de sementes em culturas de feijões comuns (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
title |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
spellingShingle |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 Machado Neto, Nelson Barbosa feijão temperatura cardeal graus por dia germinabilidade velocidade 5.01.03.00-8 Fitotecnia |
title_short |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
title_full |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
title_fullStr |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
title_full_unstemmed |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
title_sort |
Temperature effects on seed germination in races of common beans (Phaseolus vulgaris L.) - DOI: 10.4025/actasciagron.v28i2.976 |
author |
Machado Neto, Nelson Barbosa |
author_facet |
Machado Neto, Nelson Barbosa Prioli, Maria Regina Gatti, Ana Beatriz Cardoso, Victor José Mendes |
author_role |
author |
author2 |
Prioli, Maria Regina Gatti, Ana Beatriz Cardoso, Victor José Mendes |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Machado Neto, Nelson Barbosa Prioli, Maria Regina Gatti, Ana Beatriz Cardoso, Victor José Mendes |
dc.subject.por.fl_str_mv |
feijão temperatura cardeal graus por dia germinabilidade velocidade 5.01.03.00-8 Fitotecnia |
topic |
feijão temperatura cardeal graus por dia germinabilidade velocidade 5.01.03.00-8 Fitotecnia |
description |
Temperature is one of the most important environmental factors, affecting establishment and crop development. Seed germination is particularly affected by temperature. The aim of this work was to evaluate the tolerance temperatures during germination in several bean cultivars. The seeds were submitted to temperatures ranging from 8 to 45°C in thermal block apparatus and primary root protrusion time. The number of germinated seedlings was scored for each cultivar and temperature. High temperatures (≅40°C and upper) strongly inhibit cultivar germination, but 'IAPAR-57', ‘Guarumbé’ and ‘Iratim’ appear to be more sensitive to high temperature stress than others. ‘IAC Carioca 80SH’ PP and 'IAPAR-57' were less tolerant to low temperatures. The thermal time model could describe, relatively well, the time-course of the cultivars isothermal germination, which differed in the thermal time amount required to germinate. 'IAC Carioca-Akytã' needs fewer degrees per day to achieve germination than others, whereas the cultivar 'Campeão-1' requires more thermal time. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-13 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/976 10.4025/actasciagron.v28i2.976 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/976 |
identifier_str_mv |
10.4025/actasciagron.v28i2.976 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/976/568 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 28 No 2 (2006); 155-164 Acta Scientiarum. Agronomy; v. 28 n. 2 (2006); 155-164 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305903290187776 |