GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/25031 |
Resumo: | The aims of this study were to verify the effects of different tests in the overcoming dormancy, excellent germination terms, as light and temperature, and the possibility of re-induction of desiccation tolerance in Senna multijuga seeds. We evaluated two tests for overcoming dormancy: immersion in water with an initial temperature of 100ºC (hot water) and immersion in water at a constant temperature at 100ºC for 20 seconds (boiling water), both treatments followed by rest out of the heating for 24 hours. For the germination test, we evaluated 25ºC, 30ºC (constant) and 20-30ºC (alternate), in the presence and absence of light. For the re-induction of desiccation tolerance, we selected seeds germinated with 1, 2, 3 and 4mm of radicle length. We submitted the germinated seeds to the follow treatments: no incubation, incubation in polyethylene glycolphotoblastic required, but in light conditions the germination was higher. We observed the resumption of the radicle growth in germinated seeds of up to 3mm length. |
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GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARNGERMINAÇÃO E REINDUÇÃO DA TOLERÂNCIA À DESSECAÇÃO EM SEMENTES DE Senna multijuga (RICH.) IRWIN ET BARNlighttegumentar dormancycanafístulaluzdormência tegumentarcanafístulaThe aims of this study were to verify the effects of different tests in the overcoming dormancy, excellent germination terms, as light and temperature, and the possibility of re-induction of desiccation tolerance in Senna multijuga seeds. We evaluated two tests for overcoming dormancy: immersion in water with an initial temperature of 100ºC (hot water) and immersion in water at a constant temperature at 100ºC for 20 seconds (boiling water), both treatments followed by rest out of the heating for 24 hours. For the germination test, we evaluated 25ºC, 30ºC (constant) and 20-30ºC (alternate), in the presence and absence of light. For the re-induction of desiccation tolerance, we selected seeds germinated with 1, 2, 3 and 4mm of radicle length. We submitted the germinated seeds to the follow treatments: no incubation, incubation in polyethylene glycolphotoblastic required, but in light conditions the germination was higher. We observed the resumption of the radicle growth in germinated seeds of up to 3mm length.O objetivo deste trabalho foi analisar diferentes métodos de superação de dormência, condições ótimas de germinação, tais como luz, temperatura, e possível reindução da tolerância à dessecação em sementes de Senna multijuga. Foram testados dois métodos de superação de dormência: imersão em água com temperatura inicial de 100ºC (água quente) e imersão em água com temperatura constante a 100ºC por 20 segundos (água fervente), ambos os tratamentos seguidos de repouso fora do aquecimento por 24 horas. Para o teste de germinação, foram avaliados os regimes térmicos 25ºC, 30ºC (constantes) e 20-30°C (alternados), na presença e ausência de luz. Para o teste de reindução da tolerância à dessecação, foram selecionadas sementes germinadas com 1, 2, 3 e 4 mm de comprimento radicular e submetidas aos tratamentos de dessecação: sem incubação; com incubação em solução de polietilenoglicol (PEG6000) nas concentrações de -1,4; -1,7 e -2,0MPa; com incubação em solução de PEG -1,4MPa + ABA nas concentrações de 1, 10 e 100 μM. O delineamento inteiramente casualizado (DIC) foi utilizado em todos os experimentos com 4 repetições de 25 sementes. A superação de dormência utilizando água quente proporcionou germinabilidade superior a 65%. As sementes de Senna multijuga, apesar de não serem fotoblásticas positivas obrigatórias, apresentaram maior porcentagem de germinação sob condições de luz. Foi possível observar a retomada do crescimento após a secagem em sementes germinadas com radículas de até 3 mm de comprimento.Universidade Federal de Santa Maria2016-12-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/2503110.5902/1980509825031Ciência Florestal; Vol. 26 No. 4 (2016); 1133-1140Ciência Florestal; v. 26 n. 4 (2016); 1133-11401980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/25031/pdfCopyright (c) 2016 Ciência Florestalinfo:eu-repo/semantics/openAccessRibeiro, Diego Egídiode Alvarenga, Amauri AlvesMartins, Joeferson ReisRodrigues, Amanda CristianeMaia, Vitor Oliveira2017-04-05T14:34:24Zoai:ojs.pkp.sfu.ca:article/25031Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-05T14:34:24Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN GERMINAÇÃO E REINDUÇÃO DA TOLERÂNCIA À DESSECAÇÃO EM SEMENTES DE Senna multijuga (RICH.) IRWIN ET BARN |
title |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
spellingShingle |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN Ribeiro, Diego Egídio light tegumentar dormancy canafístula luz dormência tegumentar canafístula |
title_short |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
title_full |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
title_fullStr |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
title_full_unstemmed |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
title_sort |
GERMINATION AND RE-INDUCTION OF DISSECATION TOLERANCE IN SEEDS OF Senna multijuga (RICH.) IRWIN ET BARN |
author |
Ribeiro, Diego Egídio |
author_facet |
Ribeiro, Diego Egídio de Alvarenga, Amauri Alves Martins, Joeferson Reis Rodrigues, Amanda Cristiane Maia, Vitor Oliveira |
author_role |
author |
author2 |
de Alvarenga, Amauri Alves Martins, Joeferson Reis Rodrigues, Amanda Cristiane Maia, Vitor Oliveira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Ribeiro, Diego Egídio de Alvarenga, Amauri Alves Martins, Joeferson Reis Rodrigues, Amanda Cristiane Maia, Vitor Oliveira |
dc.subject.por.fl_str_mv |
light tegumentar dormancy canafístula luz dormência tegumentar canafístula |
topic |
light tegumentar dormancy canafístula luz dormência tegumentar canafístula |
description |
The aims of this study were to verify the effects of different tests in the overcoming dormancy, excellent germination terms, as light and temperature, and the possibility of re-induction of desiccation tolerance in Senna multijuga seeds. We evaluated two tests for overcoming dormancy: immersion in water with an initial temperature of 100ºC (hot water) and immersion in water at a constant temperature at 100ºC for 20 seconds (boiling water), both treatments followed by rest out of the heating for 24 hours. For the germination test, we evaluated 25ºC, 30ºC (constant) and 20-30ºC (alternate), in the presence and absence of light. For the re-induction of desiccation tolerance, we selected seeds germinated with 1, 2, 3 and 4mm of radicle length. We submitted the germinated seeds to the follow treatments: no incubation, incubation in polyethylene glycolphotoblastic required, but in light conditions the germination was higher. We observed the resumption of the radicle growth in germinated seeds of up to 3mm length. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12-28 |
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://periodicos.ufsm.br/cienciaflorestal/article/view/25031 10.5902/1980509825031 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/25031 |
identifier_str_mv |
10.5902/1980509825031 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/25031/pdf |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 Ciência Florestal info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 Ciência Florestal |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 26 No. 4 (2016); 1133-1140 Ciência Florestal; v. 26 n. 4 (2016); 1133-1140 1980-5098 0103-9954 reponame:Ciência Florestal (Online) instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1789434748486025216 |