Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agro@mbiente on-line |
Texto Completo: | https://revista.ufrr.br/agroambiente/article/view/5789 |
Resumo: | Acmella oleracea is a herbaceous plant native to the Amazon region that is currently arousing industrial interest due to its potential gastronomic, cosmetic and pharmaceutical uses. Accordingly, the objective of the current study was to test the influence of temperatures on A. oleracea seed germination and seedling vigor. A completely randomized design (CRD) with five treatments and five replicates was used. Treatments consisted of temperatures: 23, 26, 29, 32 and 35 ºC. The study was conducted in BODtype climate chambers with relative humidity above 90% and a 12 h photoperiod. Germination, germination speed index (GSI), average germination time, root length and number of normal and abnormal seedlings were recorded. Temperature influenced all analyzed variables, except average germination time and number of normal/abnormal seedlings. A quadratic model best described the relationship between dependent and independent variables. In general, maximum germination values, and GSI and root lengths were obtained at temperatures close to 29 °C, while the lowest observed values for these variables occurred at extreme temperatures (23 and 35 °C). The highest percentage of germinated seeds occurred on the second day. Temperatures above 29 ºC induced a significant reduction in the A. oleracea seedling root lengths. |
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Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. JansenThermic stress. Germination Speed Index. Vigor.Acmella oleracea is a herbaceous plant native to the Amazon region that is currently arousing industrial interest due to its potential gastronomic, cosmetic and pharmaceutical uses. Accordingly, the objective of the current study was to test the influence of temperatures on A. oleracea seed germination and seedling vigor. A completely randomized design (CRD) with five treatments and five replicates was used. Treatments consisted of temperatures: 23, 26, 29, 32 and 35 ºC. The study was conducted in BODtype climate chambers with relative humidity above 90% and a 12 h photoperiod. Germination, germination speed index (GSI), average germination time, root length and number of normal and abnormal seedlings were recorded. Temperature influenced all analyzed variables, except average germination time and number of normal/abnormal seedlings. A quadratic model best described the relationship between dependent and independent variables. In general, maximum germination values, and GSI and root lengths were obtained at temperatures close to 29 °C, while the lowest observed values for these variables occurred at extreme temperatures (23 and 35 °C). The highest percentage of germinated seeds occurred on the second day. Temperatures above 29 ºC induced a significant reduction in the A. oleracea seedling root lengths.UFRR2020-01-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.ufrr.br/agroambiente/article/view/578910.18227/1982-8470ragro.v14i0.5789AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 14 (2020)REVISTA AGRO@MBIENTE ON-LINE; Vol. 14 (2020)REVISTA AGRO@MBIENTE ON-LINE; v. 14 (2020)1982-8470reponame:Agro@mbiente on-lineinstname:Universidade Federal de Roraima (UFRR)instacron:UFRRporhttps://revista.ufrr.br/agroambiente/article/view/5789/2787Copyright (c) 2019 REVISTA AGRO@MBIENTE ON-LINEinfo:eu-repo/semantics/openAccessda Silva, Leandro CarvalhoGomes Sampaio, Italo MarlonePalha de Moraes Bittencourt, Ricardo Faleside Araujo, Mayara RibeiroReis Figueiredo, Stefany PriscilaLopes de Gusmão, Sergio Antonioda Costa, Anielle Sousa2020-12-16T13:47:07Zoai:oai.revista.ufrr.br:article/5789Revistahttps://revista.ufrr.br/index.php/agroambientePUBhttps://revista.ufrr.br/index.php/agroambiente/oai||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br1982-84701982-8470opendoar:2020-12-16T13:47:07Agro@mbiente on-line - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
title |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
spellingShingle |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen da Silva, Leandro Carvalho Thermic stress. Germination Speed Index. Vigor. |
title_short |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
title_full |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
title_fullStr |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
title_full_unstemmed |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
title_sort |
Influence of temperature on the germination and root size of Acmella oleracea (L.) R. K. Jansen |
author |
da Silva, Leandro Carvalho |
author_facet |
da Silva, Leandro Carvalho Gomes Sampaio, Italo Marlone Palha de Moraes Bittencourt, Ricardo Falesi de Araujo, Mayara Ribeiro Reis Figueiredo, Stefany Priscila Lopes de Gusmão, Sergio Antonio da Costa, Anielle Sousa |
author_role |
author |
author2 |
Gomes Sampaio, Italo Marlone Palha de Moraes Bittencourt, Ricardo Falesi de Araujo, Mayara Ribeiro Reis Figueiredo, Stefany Priscila Lopes de Gusmão, Sergio Antonio da Costa, Anielle Sousa |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
da Silva, Leandro Carvalho Gomes Sampaio, Italo Marlone Palha de Moraes Bittencourt, Ricardo Falesi de Araujo, Mayara Ribeiro Reis Figueiredo, Stefany Priscila Lopes de Gusmão, Sergio Antonio da Costa, Anielle Sousa |
dc.subject.por.fl_str_mv |
Thermic stress. Germination Speed Index. Vigor. |
topic |
Thermic stress. Germination Speed Index. Vigor. |
description |
Acmella oleracea is a herbaceous plant native to the Amazon region that is currently arousing industrial interest due to its potential gastronomic, cosmetic and pharmaceutical uses. Accordingly, the objective of the current study was to test the influence of temperatures on A. oleracea seed germination and seedling vigor. A completely randomized design (CRD) with five treatments and five replicates was used. Treatments consisted of temperatures: 23, 26, 29, 32 and 35 ºC. The study was conducted in BODtype climate chambers with relative humidity above 90% and a 12 h photoperiod. Germination, germination speed index (GSI), average germination time, root length and number of normal and abnormal seedlings were recorded. Temperature influenced all analyzed variables, except average germination time and number of normal/abnormal seedlings. A quadratic model best described the relationship between dependent and independent variables. In general, maximum germination values, and GSI and root lengths were obtained at temperatures close to 29 °C, while the lowest observed values for these variables occurred at extreme temperatures (23 and 35 °C). The highest percentage of germinated seeds occurred on the second day. Temperatures above 29 ºC induced a significant reduction in the A. oleracea seedling root lengths. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-13 |
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://revista.ufrr.br/agroambiente/article/view/5789 10.18227/1982-8470ragro.v14i0.5789 |
url |
https://revista.ufrr.br/agroambiente/article/view/5789 |
identifier_str_mv |
10.18227/1982-8470ragro.v14i0.5789 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/5789/2787 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 REVISTA AGRO@MBIENTE ON-LINE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 REVISTA AGRO@MBIENTE ON-LINE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRR |
publisher.none.fl_str_mv |
UFRR |
dc.source.none.fl_str_mv |
AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 14 (2020) REVISTA AGRO@MBIENTE ON-LINE; Vol. 14 (2020) REVISTA AGRO@MBIENTE ON-LINE; v. 14 (2020) 1982-8470 reponame:Agro@mbiente on-line instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Agro@mbiente on-line |
collection |
Agro@mbiente on-line |
repository.name.fl_str_mv |
Agro@mbiente on-line - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br |
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1799770041524158464 |