Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3380 |
Resumo: | The aim of this experiment was to overcome the dormancy and the effect of different temperatures in Dioclea violacea seeds’ germination. Two experiments were developed. In the first, it was studied the use of chemical and mechanical scarification in the overcome dormancy seeds. Therefore, were accomplished seven treatments with four replications of 15 seeds each. The experiment constituted of one testify treatment, five chemical scarification treatments (1, 2, 3, 4 and 5 hours of immersion in concentrated sulfuric acid – H2SO4) and one mechanical scarification treatment. In the second experiment, was studied the temperature effects on germination seeds; it was constituted on six treatments with four replications with 12 seeds each. The treatments constituted of constant temperatures 15°C, 20°C, 25°C, 30°C and 35°C and the alternate temperature 20-30°C (16 and 8 hours, respectively). Germination, died seeds, hard seeds percentages, medium time germination and germination speed index were determined. The data were submitted to the variance analysis, and the averages compared by the Tukey test to 5% of probability and regression analysis. It was observed that the dormancy overcome of Dioclea violacea seeds can be done with chemical scarification, 3 to 5 hours in H2SO4, as much as with mechanical scarification. Also, it was possible to conclude that Dioclea violacea seeds germinate in a wide temperature strip, with constant temperatures of 20°C, 25°C and 35°C benefit the germination process. |
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Semina. Ciências Agrárias (Online) |
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Overcoming dormancy and different temperatures in dioclea violacea seeds’ germinationMétodos de superação da dormência e temperatura na germinação de sementes de dioclea violáceaLianasFabaceaeScarificationLianasFabaceaeEscarificaçãoThe aim of this experiment was to overcome the dormancy and the effect of different temperatures in Dioclea violacea seeds’ germination. Two experiments were developed. In the first, it was studied the use of chemical and mechanical scarification in the overcome dormancy seeds. Therefore, were accomplished seven treatments with four replications of 15 seeds each. The experiment constituted of one testify treatment, five chemical scarification treatments (1, 2, 3, 4 and 5 hours of immersion in concentrated sulfuric acid – H2SO4) and one mechanical scarification treatment. In the second experiment, was studied the temperature effects on germination seeds; it was constituted on six treatments with four replications with 12 seeds each. The treatments constituted of constant temperatures 15°C, 20°C, 25°C, 30°C and 35°C and the alternate temperature 20-30°C (16 and 8 hours, respectively). Germination, died seeds, hard seeds percentages, medium time germination and germination speed index were determined. The data were submitted to the variance analysis, and the averages compared by the Tukey test to 5% of probability and regression analysis. It was observed that the dormancy overcome of Dioclea violacea seeds can be done with chemical scarification, 3 to 5 hours in H2SO4, as much as with mechanical scarification. Also, it was possible to conclude that Dioclea violacea seeds germinate in a wide temperature strip, with constant temperatures of 20°C, 25°C and 35°C benefit the germination process.Este trabalho objetivou avaliar métodos de superação da dormência e o efeito de diferentes temperaturas na germinação de sementes de Dioclea violacea. O trabalho foi subdividido em dois experimentos. No primeiro, foi estudado o uso de escarificação química e mecânica na superação da dormência das sementes. Para tanto, foram realizados sete tratamentos com quatro repetições de 15 sementes por parcela. O experimento constituiu-se de um tratamento testemunha, cinco tratamentos com escarificação química (1, 2, 3, 4 e 5 horas de imersão em ácido sulfúrico concentrado - H2SO4) e um tratamento com escarificação mecânica. No segundo experimento, foi estudado o efeito da temperatura na germinação das sementes e constou de seis tratamentos com quatro repetições de 12 sementes por parcela. Os tratamentos foram constituídos pelas temperaturas constantes 15ºC, 20ºC, 25ºC, 30ºC e 35ºC e pela temperatura alternada 20-30ºC (16 e 8 horas, respectivamente). Foram determinadas as porcentagens de germinação, de sementes mortas e de sementes duras, o tempo médio de germinação e o índice de velocidade de germinação. Os dados foram submetidos à análise de variância, e as médias, comparadas pelo teste Tukey, a 5% de probabilidade e análise de regressão. A superação da dormência de sementes de Dioclea violacea pode ser feita tanto por escarificação química, de 3 a 5 horas em H2SO4 como por escarificação mecânica. As sementes de Dioclea violacea germinam em ampla faixa de temperatura, sendo que temperaturas constantes de 20ºC, 25°C e 35ºC beneficiaram o processo. UEL2011-02-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/338010.5433/1679-0359.2010v31n4Sup1p1305Semina: Ciências Agrárias; Vol. 31 No. 4Sup1 (2010); 1305-1312Semina: Ciências Agrárias; v. 31 n. 4Sup1 (2010); 1305-13121679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3380/6927Zucareli, ValdirAmaro, Amanda Cristina EstevesSilvério, Evandro VargasFerreira, Giselainfo:eu-repo/semantics/openAccess2015-11-19T18:38:09Zoai:ojs.pkp.sfu.ca:article/3380Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:38:09Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination Métodos de superação da dormência e temperatura na germinação de sementes de dioclea violácea |
title |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
spellingShingle |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination Zucareli, Valdir Lianas Fabaceae Scarification Lianas Fabaceae Escarificação |
title_short |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
title_full |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
title_fullStr |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
title_full_unstemmed |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
title_sort |
Overcoming dormancy and different temperatures in dioclea violacea seeds’ germination |
author |
Zucareli, Valdir |
author_facet |
Zucareli, Valdir Amaro, Amanda Cristina Esteves Silvério, Evandro Vargas Ferreira, Gisela |
author_role |
author |
author2 |
Amaro, Amanda Cristina Esteves Silvério, Evandro Vargas Ferreira, Gisela |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Zucareli, Valdir Amaro, Amanda Cristina Esteves Silvério, Evandro Vargas Ferreira, Gisela |
dc.subject.por.fl_str_mv |
Lianas Fabaceae Scarification Lianas Fabaceae Escarificação |
topic |
Lianas Fabaceae Scarification Lianas Fabaceae Escarificação |
description |
The aim of this experiment was to overcome the dormancy and the effect of different temperatures in Dioclea violacea seeds’ germination. Two experiments were developed. In the first, it was studied the use of chemical and mechanical scarification in the overcome dormancy seeds. Therefore, were accomplished seven treatments with four replications of 15 seeds each. The experiment constituted of one testify treatment, five chemical scarification treatments (1, 2, 3, 4 and 5 hours of immersion in concentrated sulfuric acid – H2SO4) and one mechanical scarification treatment. In the second experiment, was studied the temperature effects on germination seeds; it was constituted on six treatments with four replications with 12 seeds each. The treatments constituted of constant temperatures 15°C, 20°C, 25°C, 30°C and 35°C and the alternate temperature 20-30°C (16 and 8 hours, respectively). Germination, died seeds, hard seeds percentages, medium time germination and germination speed index were determined. The data were submitted to the variance analysis, and the averages compared by the Tukey test to 5% of probability and regression analysis. It was observed that the dormancy overcome of Dioclea violacea seeds can be done with chemical scarification, 3 to 5 hours in H2SO4, as much as with mechanical scarification. Also, it was possible to conclude that Dioclea violacea seeds germinate in a wide temperature strip, with constant temperatures of 20°C, 25°C and 35°C benefit the germination process. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-02-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3380 10.5433/1679-0359.2010v31n4Sup1p1305 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3380 |
identifier_str_mv |
10.5433/1679-0359.2010v31n4Sup1p1305 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3380/6927 |
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 |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 31 No. 4Sup1 (2010); 1305-1312 Semina: Ciências Agrárias; v. 31 n. 4Sup1 (2010); 1305-1312 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306055779352576 |