Accelerated aging in sorghum genotypes
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/41774 |
Resumo: | The accelerated aging test has stood out among vigor tests. It has been used with different objectives, including as an assistance method in the selection of cultivars for plant breeding. This research aimed to analyze the effects of different exposure times to accelerated aging on the germination and vigor of sorghum seeds from different genetic sources. The experiment consisted of a completely randomized design with eight genotypes and four replications. Seeds were subject to an accelerated aging test with four exposure times (0, 24, 72, and 96 h) at a temperature of 47 °C and then evaluated by germination test (G), germination speed index (GSI), mean germination time (MGT), seedling emergence (SE), emergence speed index (ESI), and mean emergence time (MET). All genotypes presented a reduction in germination, GSI, SE, and ESI, and an increase in MGT and MET. The genotype CMX5156A had an increase in seed vigor under conditions of high temperature and relative humidity. Accelerated aging for 72 hours at 47 °C drastically reduces seed vigor. The accelerated aging test can be used to differentiate sorghum genotypes in breeding programs. |
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Accelerated aging in sorghum genotypesEnvelhecimento acelerado em genótipos de sorgoSorghum bicolorgerminationphysiological qualityAgricultural SciencesThe accelerated aging test has stood out among vigor tests. It has been used with different objectives, including as an assistance method in the selection of cultivars for plant breeding. This research aimed to analyze the effects of different exposure times to accelerated aging on the germination and vigor of sorghum seeds from different genetic sources. The experiment consisted of a completely randomized design with eight genotypes and four replications. Seeds were subject to an accelerated aging test with four exposure times (0, 24, 72, and 96 h) at a temperature of 47 °C and then evaluated by germination test (G), germination speed index (GSI), mean germination time (MGT), seedling emergence (SE), emergence speed index (ESI), and mean emergence time (MET). All genotypes presented a reduction in germination, GSI, SE, and ESI, and an increase in MGT and MET. The genotype CMX5156A had an increase in seed vigor under conditions of high temperature and relative humidity. Accelerated aging for 72 hours at 47 °C drastically reduces seed vigor. The accelerated aging test can be used to differentiate sorghum genotypes in breeding programs.O teste de envelhecimento acelerado tem se destacado entre os testes de vigor, sendo utilizado com diferentes objetivos, inclusive como método assistencial na seleção de cultivares para melhoramento de plantas. Esta pesquisa teve como objetivo analisar os efeitos de diferentes tempos de exposição ao envelhecimento acelerado na germinação e vigor de sementes de sorgo de diferentes fontes genéticas. O experimento consistiu em um delineamento inteiramente casualizado com oito genótipos e quatro repetições. As sementes foram submetidas ao teste de envelhecimento acelerado com quatro tempos de exposição (0, 24, 72 e 96 h) a uma temperatura de 47 °C e avaliadas pelo teste de germinação (G), índice de velocidade de germinação (GSI), tempo médio de germinação. (MGT), emergência de plântulas (SE), índice de velocidade de emergência (ESI) e tempo médio de emergência (MET). Todos os genótipos apresentaram redução na germinação, GSI, SE e ESI, e aumento no MGT e MET. O genótipo CMX5156A apresentou sementes com maior vigor em condições de alta temperatura e umidade relativa. O envelhecimento acelerado por 72 horas a 47 °C reduz drasticamente o vigor das sementes. O teste de envelhecimento acelerado pode ser usado para diferenciar genótipos de sorgo em programas de melhoramento.EDUFU2019-04-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/4177410.14393/BJ-v35n2a20198-41774Bioscience Journal ; Vol. 35 No. 2 (2019): Mar./Apr.; 450-458Bioscience Journal ; v. 35 n. 2 (2019): Mar./Apr.; 450-4581981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/41774/25794Brazil; ContemporaryCopyright (c) 2019 Fábio Batista de Lima, Alexandre Martins Abdão dos Passos, Josué Bispo da Silva, Charline Zaratin Alves, Déa Alecia Martins Netto, Mayara Fávero Cotrimhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessde Lima, Fábio BatistaAbdão dos Passos, Alexandre Martinsda Silva, Josué BispoAlves, Charline ZaratinMartins Netto, Déa AleciaCotrim, Mayara Fávero2022-02-02T10:57:43Zoai:ojs.www.seer.ufu.br:article/41774Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-02-02T10:57:43Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Accelerated aging in sorghum genotypes Envelhecimento acelerado em genótipos de sorgo |
title |
Accelerated aging in sorghum genotypes |
spellingShingle |
Accelerated aging in sorghum genotypes de Lima, Fábio Batista Sorghum bicolor germination physiological quality Agricultural Sciences |
title_short |
Accelerated aging in sorghum genotypes |
title_full |
Accelerated aging in sorghum genotypes |
title_fullStr |
Accelerated aging in sorghum genotypes |
title_full_unstemmed |
Accelerated aging in sorghum genotypes |
title_sort |
Accelerated aging in sorghum genotypes |
author |
de Lima, Fábio Batista |
author_facet |
de Lima, Fábio Batista Abdão dos Passos, Alexandre Martins da Silva, Josué Bispo Alves, Charline Zaratin Martins Netto, Déa Alecia Cotrim, Mayara Fávero |
author_role |
author |
author2 |
Abdão dos Passos, Alexandre Martins da Silva, Josué Bispo Alves, Charline Zaratin Martins Netto, Déa Alecia Cotrim, Mayara Fávero |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
de Lima, Fábio Batista Abdão dos Passos, Alexandre Martins da Silva, Josué Bispo Alves, Charline Zaratin Martins Netto, Déa Alecia Cotrim, Mayara Fávero |
dc.subject.por.fl_str_mv |
Sorghum bicolor germination physiological quality Agricultural Sciences |
topic |
Sorghum bicolor germination physiological quality Agricultural Sciences |
description |
The accelerated aging test has stood out among vigor tests. It has been used with different objectives, including as an assistance method in the selection of cultivars for plant breeding. This research aimed to analyze the effects of different exposure times to accelerated aging on the germination and vigor of sorghum seeds from different genetic sources. The experiment consisted of a completely randomized design with eight genotypes and four replications. Seeds were subject to an accelerated aging test with four exposure times (0, 24, 72, and 96 h) at a temperature of 47 °C and then evaluated by germination test (G), germination speed index (GSI), mean germination time (MGT), seedling emergence (SE), emergence speed index (ESI), and mean emergence time (MET). All genotypes presented a reduction in germination, GSI, SE, and ESI, and an increase in MGT and MET. The genotype CMX5156A had an increase in seed vigor under conditions of high temperature and relative humidity. Accelerated aging for 72 hours at 47 °C drastically reduces seed vigor. The accelerated aging test can be used to differentiate sorghum genotypes in breeding programs. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-12 |
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://seer.ufu.br/index.php/biosciencejournal/article/view/41774 10.14393/BJ-v35n2a20198-41774 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/41774 |
identifier_str_mv |
10.14393/BJ-v35n2a20198-41774 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/41774/25794 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 35 No. 2 (2019): Mar./Apr.; 450-458 Bioscience Journal ; v. 35 n. 2 (2019): Mar./Apr.; 450-458 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069079236837376 |