EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/8309 |
Resumo: | The aim of the present study was to evaluate the effects of temperature, substrate, and luminosity on chia seeds in order to determine adequate conditions for a germination test. The experiment consisted of a completely randomized design, in a 4 × 5 × 2 factorial scheme (four substrates × five temperatures × two luminosity conditions), with four replications. The following variables were analyzed: first germination count, germination, germination speed index, and mean germination time. Germination was best at 15, 20, 25, and 30 °C for the on-paper, paper roll, and sand substrates. However, in the presence of luminosity and at 25 °C, the on-paper substrate had the highest mean. For all substrates, the lowest germination was achieved at 35 °C, proving that high temperatures reduce chia seed germination. Germination speed index was highest at 25 and 30 °C for on-paper, paper roll, and sand substrates, in both the presence and absence of luminosity. Chia seeds are considered to be neutral photoblasts. Germination tests should be performed with the on-paper substrate, at 25 °C, and with a duration of seven days. The first count should be carried out four days after establishment of the test. |
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EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATIONTEMPERATURA, SUBSTRATO E CONDIÇÃO DE LUMINOSIDADE NA GERMINAÇÃO DE SEMENTES DA CHIALamiaceae. Salvia hispanica. Germinative potential. Photoblastism.Lamiaceae. Salvia hispanica. Potencial germinativo. Fotoblastismo.The aim of the present study was to evaluate the effects of temperature, substrate, and luminosity on chia seeds in order to determine adequate conditions for a germination test. The experiment consisted of a completely randomized design, in a 4 × 5 × 2 factorial scheme (four substrates × five temperatures × two luminosity conditions), with four replications. The following variables were analyzed: first germination count, germination, germination speed index, and mean germination time. Germination was best at 15, 20, 25, and 30 °C for the on-paper, paper roll, and sand substrates. However, in the presence of luminosity and at 25 °C, the on-paper substrate had the highest mean. For all substrates, the lowest germination was achieved at 35 °C, proving that high temperatures reduce chia seed germination. Germination speed index was highest at 25 and 30 °C for on-paper, paper roll, and sand substrates, in both the presence and absence of luminosity. Chia seeds are considered to be neutral photoblasts. Germination tests should be performed with the on-paper substrate, at 25 °C, and with a duration of seven days. The first count should be carried out four days after establishment of the test.Este trabalho teve como objetivo avaliar a temperatura, o substrato e a luminosidade na germinação de sementes de chia, a fim de determinar procedimentos adequados para um teste de germinação. O experimento consistiu de um delineamento inteiramente casualizado, em esquema fatorial 4 x 5 x 2 (quatro substratos x cinco temperaturas x duas condições de luminosidade), com quatro repetições. As seguintes variáveis foram analisadas: primeira contagem de germinação; germinação; índice de velocidade de germinação e tempo médio de germinação. A germinação apresentou as maiores porcentagem de germinação a 15, 20, 25 e 30 °C para os substratos em papel, rolo de papel e areia; no entanto, na presença de luminosidade, o substrato em papel, a 25 °C, diferiu de todos os demais, resultando na maior média. Para todos os substratos, a menor germinação foi obtida a 35 °C, comprovando que o uso de altas temperaturas reduz a germinação das sementes de chia. O índice de velocidade de germinação apresentou os maiores valores a 25 e 30 °C para substratos em papel, rolo de papel e areia, tanto na presença quanto na ausência de luminosidade. Sementes de chia são consideradas como fotoblasticas neutras. O teste de germinação deve ser realizado com o substrato em papel, a 25 °C, com duração de sete dias, sendo a primeira contagem realizada aos quatro dias após a instalação do teste.Universidade Federal Rural do Semi-Árido2019-05-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/830910.1590/1983-21252019v32n214rcREVISTA CAATINGA; Vol. 32 No. 2 (2019); 411-418Revista Caatinga; v. 32 n. 2 (2019); 411-4181983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/8309/9957Copyright (c) 2019 Revista Caatingainfo:eu-repo/semantics/openAccessSorana, Claudia Kely Pires de MattosRego, Carlos Henrique QueirozCardoso, Fernanda BritoSilva, Tiago Roque Benetoli daCândido, Ana Carina da SilvaAlves, Charline Zaratin2023-07-20T17:15:23Zoai:ojs.periodicos.ufersa.edu.br:article/8309Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:38.710060Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION TEMPERATURA, SUBSTRATO E CONDIÇÃO DE LUMINOSIDADE NA GERMINAÇÃO DE SEMENTES DA CHIA |
title |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
spellingShingle |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION Sorana, Claudia Kely Pires de Mattos Lamiaceae. Salvia hispanica. Germinative potential. Photoblastism. Lamiaceae. Salvia hispanica. Potencial germinativo. Fotoblastismo. |
title_short |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
title_full |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
title_fullStr |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
title_full_unstemmed |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
title_sort |
EFFECTS OF TEMPERATURE, SUBSTRATE AND LUMINOSITY CONDITIONS ON CHIA SEED GERMINATION |
author |
Sorana, Claudia Kely Pires de Mattos |
author_facet |
Sorana, Claudia Kely Pires de Mattos Rego, Carlos Henrique Queiroz Cardoso, Fernanda Brito Silva, Tiago Roque Benetoli da Cândido, Ana Carina da Silva Alves, Charline Zaratin |
author_role |
author |
author2 |
Rego, Carlos Henrique Queiroz Cardoso, Fernanda Brito Silva, Tiago Roque Benetoli da Cândido, Ana Carina da Silva Alves, Charline Zaratin |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Sorana, Claudia Kely Pires de Mattos Rego, Carlos Henrique Queiroz Cardoso, Fernanda Brito Silva, Tiago Roque Benetoli da Cândido, Ana Carina da Silva Alves, Charline Zaratin |
dc.subject.por.fl_str_mv |
Lamiaceae. Salvia hispanica. Germinative potential. Photoblastism. Lamiaceae. Salvia hispanica. Potencial germinativo. Fotoblastismo. |
topic |
Lamiaceae. Salvia hispanica. Germinative potential. Photoblastism. Lamiaceae. Salvia hispanica. Potencial germinativo. Fotoblastismo. |
description |
The aim of the present study was to evaluate the effects of temperature, substrate, and luminosity on chia seeds in order to determine adequate conditions for a germination test. The experiment consisted of a completely randomized design, in a 4 × 5 × 2 factorial scheme (four substrates × five temperatures × two luminosity conditions), with four replications. The following variables were analyzed: first germination count, germination, germination speed index, and mean germination time. Germination was best at 15, 20, 25, and 30 °C for the on-paper, paper roll, and sand substrates. However, in the presence of luminosity and at 25 °C, the on-paper substrate had the highest mean. For all substrates, the lowest germination was achieved at 35 °C, proving that high temperatures reduce chia seed germination. Germination speed index was highest at 25 and 30 °C for on-paper, paper roll, and sand substrates, in both the presence and absence of luminosity. Chia seeds are considered to be neutral photoblasts. Germination tests should be performed with the on-paper substrate, at 25 °C, and with a duration of seven days. The first count should be carried out four days after establishment of the test. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-05-20 |
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.ufersa.edu.br/caatinga/article/view/8309 10.1590/1983-21252019v32n214rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/8309 |
identifier_str_mv |
10.1590/1983-21252019v32n214rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/8309/9957 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 32 No. 2 (2019); 411-418 Revista Caatinga; v. 32 n. 2 (2019); 411-418 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
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1797674027703074816 |