Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/6537 |
Resumo: | It was studied the influence of sugarcane straw density and light conditions on the germination of seeds of Euphorbia heterophylla under controlled conditions.The experimental design was completely randomized design with four replications of 50 seeds, and the treatments were arranged in a 6 x 5 factorial, with six amount of sugarcane straw (0, 8, 10, 12, 14 and 16 t ha-1) and 5 types of light (constant light, constant darkness, alternating light and dark, short red and far red). The seeds were germinated in plastic type boxes covered byoverlapping layers of straw and kept in germination. Assessments of germination were daily computing the normal seedlings, when they presented protusion roots visible and calculated the germination speed index (IGS). It was observed that the increase of different densities of straw and different wave lengths provided germination ranged from 83 to 97% and IGS between 9.85 to 15.36. The different densities of straw and wavelength did not suppress the germination of E. heterophylla. Therefore, the species was insensitive to light, so the presence of raw sugarcane system can’t be considered a potential tool for controlling this species. |
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Semina. Ciências Agrárias (Online) |
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Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophyllaDensidades de palha e condições de luminosidade na germinação de sementes de Euhphorbia heterophyllaWild poinsettiaRaw sugarcaneSeedlingsShort redFar red.LeiteiroCana-cruaPlântulasVermelho curtoVermelho distante.5.01.03.07-5It was studied the influence of sugarcane straw density and light conditions on the germination of seeds of Euphorbia heterophylla under controlled conditions.The experimental design was completely randomized design with four replications of 50 seeds, and the treatments were arranged in a 6 x 5 factorial, with six amount of sugarcane straw (0, 8, 10, 12, 14 and 16 t ha-1) and 5 types of light (constant light, constant darkness, alternating light and dark, short red and far red). The seeds were germinated in plastic type boxes covered byoverlapping layers of straw and kept in germination. Assessments of germination were daily computing the normal seedlings, when they presented protusion roots visible and calculated the germination speed index (IGS). It was observed that the increase of different densities of straw and different wave lengths provided germination ranged from 83 to 97% and IGS between 9.85 to 15.36. The different densities of straw and wavelength did not suppress the germination of E. heterophylla. Therefore, the species was insensitive to light, so the presence of raw sugarcane system can’t be considered a potential tool for controlling this species.Estudou-se a influência da densidade de palha de cana-de-açúcar e condições de luminosidade sobre a germinação de sementes de Euphorbia heterophylla em condições controladas. O delineamento experimental foi inteiramente casualizado, com quatro repetições de 50 sementes, e os tratamentos foram dispostos no esquema fatorial 6 x 5, sendo seis quantidades de palha de cana-de-açúcar (0, 8, 10, 12, 14 e 16 t ha-1) e cinco 5 tipos de luz (luz constante, escuro constante, alternância luz-escuro, vermelho curto e vermelho distante). As sementes foram colocadas para germinar em caixas plásticas do tipo gerbox e cobertas por camadas de palha sobrepostas e mantidas em câmaras de germinação. As avaliações de germinação foram diárias, computando-se as plântulas normais, quando apresentavam protusão radicular visível e calculado o índice de velocidade de germinação (IVG). O aumento das diferentes densidades de palha e diferentes comprimentos de onda proporcionaram germinação de 83 a 97% e IVG entre 9,85 a 15,36. As diferentes densidades de palha e comprimentos de onda não suprimiram a germinação de sementes de E. heterophylla, sendo a espécie insensível à luz. Assim sendo, a presença de palha em sistema de cana-crua não pode ser considerada ferramenta potencial para controle dessa espécie.UEL2012-06-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Laboratórioapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/653710.5433/1679-0359.2012v33n3p867Semina: Ciências Agrárias; Vol. 33 No. 3 (2012); 867-872Semina: Ciências Agrárias; v. 33 n. 3 (2012); 867-8721679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/6537/10813Marques, Renata PereiraMartins, DagobertoCosta, Saulo Ítalo de AlmeidaVitorino, Hermeson dos Santosinfo:eu-repo/semantics/openAccess2015-11-19T18:37:29Zoai:ojs.pkp.sfu.ca:article/6537Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:29Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla Densidades de palha e condições de luminosidade na germinação de sementes de Euhphorbia heterophylla |
title |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
spellingShingle |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla Marques, Renata Pereira Wild poinsettia Raw sugarcane Seedlings Short red Far red. Leiteiro Cana-crua Plântulas Vermelho curto Vermelho distante. 5.01.03.07-5 |
title_short |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
title_full |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
title_fullStr |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
title_full_unstemmed |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
title_sort |
Densities straw and luminosity conditions on seed germination on seed germination of Euhphorbia heterophylla |
author |
Marques, Renata Pereira |
author_facet |
Marques, Renata Pereira Martins, Dagoberto Costa, Saulo Ítalo de Almeida Vitorino, Hermeson dos Santos |
author_role |
author |
author2 |
Martins, Dagoberto Costa, Saulo Ítalo de Almeida Vitorino, Hermeson dos Santos |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Marques, Renata Pereira Martins, Dagoberto Costa, Saulo Ítalo de Almeida Vitorino, Hermeson dos Santos |
dc.subject.por.fl_str_mv |
Wild poinsettia Raw sugarcane Seedlings Short red Far red. Leiteiro Cana-crua Plântulas Vermelho curto Vermelho distante. 5.01.03.07-5 |
topic |
Wild poinsettia Raw sugarcane Seedlings Short red Far red. Leiteiro Cana-crua Plântulas Vermelho curto Vermelho distante. 5.01.03.07-5 |
description |
It was studied the influence of sugarcane straw density and light conditions on the germination of seeds of Euphorbia heterophylla under controlled conditions.The experimental design was completely randomized design with four replications of 50 seeds, and the treatments were arranged in a 6 x 5 factorial, with six amount of sugarcane straw (0, 8, 10, 12, 14 and 16 t ha-1) and 5 types of light (constant light, constant darkness, alternating light and dark, short red and far red). The seeds were germinated in plastic type boxes covered byoverlapping layers of straw and kept in germination. Assessments of germination were daily computing the normal seedlings, when they presented protusion roots visible and calculated the germination speed index (IGS). It was observed that the increase of different densities of straw and different wave lengths provided germination ranged from 83 to 97% and IGS between 9.85 to 15.36. The different densities of straw and wavelength did not suppress the germination of E. heterophylla. Therefore, the species was insensitive to light, so the presence of raw sugarcane system can’t be considered a potential tool for controlling this species. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-28 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empírica de Laboratório |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/6537 10.5433/1679-0359.2012v33n3p867 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/6537 |
identifier_str_mv |
10.5433/1679-0359.2012v33n3p867 |
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/6537/10813 |
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. 33 No. 3 (2012); 867-872 Semina: Ciências Agrárias; v. 33 n. 3 (2012); 867-872 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_ |
1799306064205709312 |