Germination of physic nut seeds in different temperatures, light and substrates

Detalhes bibliográficos
Autor(a) principal: Pascuali, Luiz Carlos
Data de Publicação: 2012
Outros Autores: Silva, Fabrício Schwanz da, Porto, Alexandre Gonçalves, Silva Filho, Armando da, Meneghello, Geri Eduardo
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/7180
Resumo: The physic nut crop (Jatropha curcas L.) has been gaining some importance in the last years due to its use as a raw material for biodiesel production. The Physic nut can be propagated through stakes and/ or seeds. In this context, it was developed this study in order to evaluate the effects of the substrate, temperature and light on the germination and germination speed index (GSI) of physic nut seeds. The experimental design used was a factorial 4x2x2 with temperature (25, 30, 35 and 40 °C) x substrate (sand and paper) x light (presence and absence) with three replicates per treatment. The best germination percentages were obtained with the temperatures of 25, 30 and 35 °C with light and 30 ºC in light absence for the sand substrate and at a temperature of 30°C, whether in presence or absence of light for the paper substrate. The sowing in sand without light at 30 °C was that best promoted the seedling development with higher GSI. The combination of substrate between sand, temperature of 30 °C and  absence of light showed the best condition for evaluating germination and GSI of physic nut seeds.
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spelling Germination of physic nut seeds in different temperatures, light and substratesGerminação de sementes de pinhão manso em diferentes temperaturas, luz e substratosBiodieselGSIJatropha curcas L. and oilseed.BiodieselIVGJatropha curcas L. e oleaginosa.FitotecniaThe physic nut crop (Jatropha curcas L.) has been gaining some importance in the last years due to its use as a raw material for biodiesel production. The Physic nut can be propagated through stakes and/ or seeds. In this context, it was developed this study in order to evaluate the effects of the substrate, temperature and light on the germination and germination speed index (GSI) of physic nut seeds. The experimental design used was a factorial 4x2x2 with temperature (25, 30, 35 and 40 °C) x substrate (sand and paper) x light (presence and absence) with three replicates per treatment. The best germination percentages were obtained with the temperatures of 25, 30 and 35 °C with light and 30 ºC in light absence for the sand substrate and at a temperature of 30°C, whether in presence or absence of light for the paper substrate. The sowing in sand without light at 30 °C was that best promoted the seedling development with higher GSI. The combination of substrate between sand, temperature of 30 °C and  absence of light showed the best condition for evaluating germination and GSI of physic nut seeds.A cultura do pinhão manso (Jatropha curcas L.) vem ganhando destaque nos últimos anos pelo seu uso como matéria prima para a produção de biodiesel. Sua reprodução pode ser realizada por estacas e/ou sementes. Neste contexto, se desenvolveu o presente estudo com o objetivo de avaliar o efeito do substrato, temperatura e luz sob a germinação e índice de velocidade de germinação (IVG) de sementes de pinhão manso. O delineamento experimental utilizado foi o fatorial do tipo 4x2x2 sendo quatro temperaturas (25, 30, 35 e 40 °C) dois substratos (areia e papel) e duas condições de luz (presença e ausência), com três repetições por tratamento. As maiores percentagens de germinação foram obtidas com as temperaturas de 25, 30 e 35 °C com luz e 30 ºC na ausência de luz para o substrato areia. Com a temperatura de 30 °C tanto na presença como na ausência de luz, para o substrato papel. A semeadura entre areia sem luz na temperatura de 30 °C foi a que melhor promoveu o desenvolvimento das plântulas, com maior IVG. A combinação do substrato entre areia, temperatura de 30 °C e ausência de luz é a melhor condição para avaliação da germinação e IVG de sementes de pinhão manso.UEL2012-08-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisaapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/718010.5433/1679-0359.2012v33n4p1435Semina: Ciências Agrárias; Vol. 33 No. 4 (2012); 1435-1440Semina: Ciências Agrárias; v. 33 n. 4 (2012); 1435-14401679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7180/11243Pascuali, Luiz CarlosSilva, Fabrício Schwanz daPorto, Alexandre GonçalvesSilva Filho, Armando daMeneghello, Geri Eduardoinfo:eu-repo/semantics/openAccess2015-11-19T18:37:25Zoai:ojs.pkp.sfu.ca:article/7180Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:25Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Germination of physic nut seeds in different temperatures, light and substrates
Germinação de sementes de pinhão manso em diferentes temperaturas, luz e substratos
title Germination of physic nut seeds in different temperatures, light and substrates
spellingShingle Germination of physic nut seeds in different temperatures, light and substrates
Pascuali, Luiz Carlos
Biodiesel
GSI
Jatropha curcas L. and oilseed.
Biodiesel
IVG
Jatropha curcas L. e oleaginosa.
Fitotecnia
title_short Germination of physic nut seeds in different temperatures, light and substrates
title_full Germination of physic nut seeds in different temperatures, light and substrates
title_fullStr Germination of physic nut seeds in different temperatures, light and substrates
title_full_unstemmed Germination of physic nut seeds in different temperatures, light and substrates
title_sort Germination of physic nut seeds in different temperatures, light and substrates
author Pascuali, Luiz Carlos
author_facet Pascuali, Luiz Carlos
Silva, Fabrício Schwanz da
Porto, Alexandre Gonçalves
Silva Filho, Armando da
Meneghello, Geri Eduardo
author_role author
author2 Silva, Fabrício Schwanz da
Porto, Alexandre Gonçalves
Silva Filho, Armando da
Meneghello, Geri Eduardo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pascuali, Luiz Carlos
Silva, Fabrício Schwanz da
Porto, Alexandre Gonçalves
Silva Filho, Armando da
Meneghello, Geri Eduardo
dc.subject.por.fl_str_mv Biodiesel
GSI
Jatropha curcas L. and oilseed.
Biodiesel
IVG
Jatropha curcas L. e oleaginosa.
Fitotecnia
topic Biodiesel
GSI
Jatropha curcas L. and oilseed.
Biodiesel
IVG
Jatropha curcas L. e oleaginosa.
Fitotecnia
description The physic nut crop (Jatropha curcas L.) has been gaining some importance in the last years due to its use as a raw material for biodiesel production. The Physic nut can be propagated through stakes and/ or seeds. In this context, it was developed this study in order to evaluate the effects of the substrate, temperature and light on the germination and germination speed index (GSI) of physic nut seeds. The experimental design used was a factorial 4x2x2 with temperature (25, 30, 35 and 40 °C) x substrate (sand and paper) x light (presence and absence) with three replicates per treatment. The best germination percentages were obtained with the temperatures of 25, 30 and 35 °C with light and 30 ºC in light absence for the sand substrate and at a temperature of 30°C, whether in presence or absence of light for the paper substrate. The sowing in sand without light at 30 °C was that best promoted the seedling development with higher GSI. The combination of substrate between sand, temperature of 30 °C and  absence of light showed the best condition for evaluating germination and GSI of physic nut seeds.
publishDate 2012
dc.date.none.fl_str_mv 2012-08-28
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7180
10.5433/1679-0359.2012v33n4p1435
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/7180
identifier_str_mv 10.5433/1679-0359.2012v33n4p1435
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/7180/11243
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. 4 (2012); 1435-1440
Semina: Ciências Agrárias; v. 33 n. 4 (2012); 1435-1440
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)
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