Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Revista de Ciências Agrárias (Belém. Online) |
Texto Completo: | https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382 |
Resumo: | Tall fringe-rush (Fimbristylis dichotoma) is a common weed in wetlands. Knowledge of the physiology of its seed germination can significantly contribute to the development of management strategies. The objective of this study was to determine the best combination of temperature, substratum, and treatments leading to seed dormancy suppression thus enhancing seed germination. In a first phase, seeds were put to germinate under constant temperatures ranging from 15 to 40 °C at 5 °C intervals and alternating temperatures of 15-25, 15-35, and 20-30 °C (8 h of light). The effects were evaluated by means of a germination test carried out in filter paper. In another experiment, the seeds were submitted to the following treatments: 1. seeds immersion in H2SO4 for 3 min, 2. seeds immersed in H2O for 15 min, 3. seeds immersed in a 1% KNO3 solution for 15 min, 4. seeds dried at 50 °C for 12 h, and 5. non treated ( check treatment) seeds. The effects in the second experiment were evaluated by means of a germination test carried out in the following substrata: 1. a ready-made substratum (bioplant prata™), 2. soil, and 3. sand. In both experiments, the evaluations were the following: total germination, germination first count (three days), speed of germination index, and mean time for seed germination. The experimental units were distributed in the germination chamber according to a completely random design with four repetitions. The results showed that the best germination result (94%) was attained when the tall fringe-rush seeds were dried for 12 h at 50 °C and put to germinate under either ready-made or soil substrata and under alternate temperatures of either 15-25 or 15-35 °C. |
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Revista de Ciências Agrárias (Belém. Online) |
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Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds Tall fringe-rush (Fimbristylis dichotoma) is a common weed in wetlands. Knowledge of the physiology of its seed germination can significantly contribute to the development of management strategies. The objective of this study was to determine the best combination of temperature, substratum, and treatments leading to seed dormancy suppression thus enhancing seed germination. In a first phase, seeds were put to germinate under constant temperatures ranging from 15 to 40 °C at 5 °C intervals and alternating temperatures of 15-25, 15-35, and 20-30 °C (8 h of light). The effects were evaluated by means of a germination test carried out in filter paper. In another experiment, the seeds were submitted to the following treatments: 1. seeds immersion in H2SO4 for 3 min, 2. seeds immersed in H2O for 15 min, 3. seeds immersed in a 1% KNO3 solution for 15 min, 4. seeds dried at 50 °C for 12 h, and 5. non treated ( check treatment) seeds. The effects in the second experiment were evaluated by means of a germination test carried out in the following substrata: 1. a ready-made substratum (bioplant prata™), 2. soil, and 3. sand. In both experiments, the evaluations were the following: total germination, germination first count (three days), speed of germination index, and mean time for seed germination. The experimental units were distributed in the germination chamber according to a completely random design with four repetitions. The results showed that the best germination result (94%) was attained when the tall fringe-rush seeds were dried for 12 h at 50 °C and put to germinate under either ready-made or soil substrata and under alternate temperatures of either 15-25 or 15-35 °C.Universidade Federal Rural da Amazônia/UFRA2014-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No Suple (2013): RCA; 44-48Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. Suple (2013): RCA; 44-482177-87601517-591Xreponame:Revista de Ciências Agrárias (Belém. Online)instname:Universidade Federal Rural da Amazônia (UFRA)instacron:UFRAporhttps://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382/449Martins, Cibele ChalitaBombonato, JulianaMartins, DagobertoMarcussi, Fernandoinfo:eu-repo/semantics/openAccess2018-12-18T18:48:38Zoai:ojs.www.periodicos.ufra.edu.br:article/1382Revistahttps://ajaes.ufra.edu.br/index.php/ajaes/PUBhttps://ajaes.ufra.edu.br/index.php/ajaes/oaiallan.lobato@ufra.edu.br || ajaes.suporte@gmail.com2177-87601517-591Xopendoar:2018-12-18T18:48:38Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA)false |
dc.title.none.fl_str_mv |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
title |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
spellingShingle |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds Martins, Cibele Chalita |
title_short |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
title_full |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
title_fullStr |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
title_full_unstemmed |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
title_sort |
Effects of substratum, temperature, and treatments to overcome dormancy on the germination of Fimbristylis dichotoma seeds |
author |
Martins, Cibele Chalita |
author_facet |
Martins, Cibele Chalita Bombonato, Juliana Martins, Dagoberto Marcussi, Fernando |
author_role |
author |
author2 |
Bombonato, Juliana Martins, Dagoberto Marcussi, Fernando |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Martins, Cibele Chalita Bombonato, Juliana Martins, Dagoberto Marcussi, Fernando |
description |
Tall fringe-rush (Fimbristylis dichotoma) is a common weed in wetlands. Knowledge of the physiology of its seed germination can significantly contribute to the development of management strategies. The objective of this study was to determine the best combination of temperature, substratum, and treatments leading to seed dormancy suppression thus enhancing seed germination. In a first phase, seeds were put to germinate under constant temperatures ranging from 15 to 40 °C at 5 °C intervals and alternating temperatures of 15-25, 15-35, and 20-30 °C (8 h of light). The effects were evaluated by means of a germination test carried out in filter paper. In another experiment, the seeds were submitted to the following treatments: 1. seeds immersion in H2SO4 for 3 min, 2. seeds immersed in H2O for 15 min, 3. seeds immersed in a 1% KNO3 solution for 15 min, 4. seeds dried at 50 °C for 12 h, and 5. non treated ( check treatment) seeds. The effects in the second experiment were evaluated by means of a germination test carried out in the following substrata: 1. a ready-made substratum (bioplant prata™), 2. soil, and 3. sand. In both experiments, the evaluations were the following: total germination, germination first count (three days), speed of germination index, and mean time for seed germination. The experimental units were distributed in the germination chamber according to a completely random design with four repetitions. The results showed that the best germination result (94%) was attained when the tall fringe-rush seeds were dried for 12 h at 50 °C and put to germinate under either ready-made or soil substrata and under alternate temperatures of either 15-25 or 15-35 °C. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-02-25 |
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://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382 |
url |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ajaes.ufra.edu.br/index.php/ajaes/article/view/1382/449 |
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 |
Universidade Federal Rural da Amazônia/UFRA |
publisher.none.fl_str_mv |
Universidade Federal Rural da Amazônia/UFRA |
dc.source.none.fl_str_mv |
Amazonian Journal of Agricultural Sciences Journal of Agricultural and Environmental Sciences; Vol 56 No Suple (2013): RCA; 44-48 Revista de Ciências Agrárias Amazonian Journal of Agricultural and Environmental Sciences; v. 56 n. Suple (2013): RCA; 44-48 2177-8760 1517-591X reponame:Revista de Ciências Agrárias (Belém. Online) instname:Universidade Federal Rural da Amazônia (UFRA) instacron:UFRA |
instname_str |
Universidade Federal Rural da Amazônia (UFRA) |
instacron_str |
UFRA |
institution |
UFRA |
reponame_str |
Revista de Ciências Agrárias (Belém. Online) |
collection |
Revista de Ciências Agrárias (Belém. Online) |
repository.name.fl_str_mv |
Revista de Ciências Agrárias (Belém. Online) - Universidade Federal Rural da Amazônia (UFRA) |
repository.mail.fl_str_mv |
allan.lobato@ufra.edu.br || ajaes.suporte@gmail.com |
_version_ |
1797231627579949056 |