Redução do tempo para o teste de germinação de sementes de capim-braquiária
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1413-70542015000500007 http://hdl.handle.net/11449/177544 |
Resumo: | The period for the germination test of Surinam grass seeds established by the Rules for Seeds Testing is 28 days, considered too lengthy by producers, venders, and seed analysis laboratories. So, the objective of this research was to evaluate the possibility of reducing the time for the germination test of Surinam grass seeds and to establish a method for dormancy breaking and the ideal temperature. Ten seed lots were submitted to the following treatments to overcome seed dormancy: control; substrate moistening with 0.2% KNO3; and scarification with sulfuric acid (98% 36 N) for 15 minutes. After the treatments, the lots were submitted to seed water content, germination and tetrazolium tests. During the germination test, conducted with four replicates of 100 seeds per treatment for 28 days, two conditions of alternating temperatures (20-35 °C and 15-35 °C) with 8 hours of light were tested. Attempting to determine the test end date, daily counts of the number of normal seedlings were made and for each lot, treatment, and temperature, a growth curve for the evaluation of germination was adjusted. The segmented regression model parameter estimations were calculated for each treatment. The germination test of Braquiaria decumbens seeds may be evaluated in 12 days after sowing using alternating temperatures of 20-35 °C and without any treatment to overcome dormancy. |
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Redução do tempo para o teste de germinação de sementes de capim-braquiáriaTime reduction for surinam grass seed germination testBrachiaria decumbensDormancy overcomingIdeal temperatureThe period for the germination test of Surinam grass seeds established by the Rules for Seeds Testing is 28 days, considered too lengthy by producers, venders, and seed analysis laboratories. So, the objective of this research was to evaluate the possibility of reducing the time for the germination test of Surinam grass seeds and to establish a method for dormancy breaking and the ideal temperature. Ten seed lots were submitted to the following treatments to overcome seed dormancy: control; substrate moistening with 0.2% KNO3; and scarification with sulfuric acid (98% 36 N) for 15 minutes. After the treatments, the lots were submitted to seed water content, germination and tetrazolium tests. During the germination test, conducted with four replicates of 100 seeds per treatment for 28 days, two conditions of alternating temperatures (20-35 °C and 15-35 °C) with 8 hours of light were tested. Attempting to determine the test end date, daily counts of the number of normal seedlings were made and for each lot, treatment, and temperature, a growth curve for the evaluation of germination was adjusted. The segmented regression model parameter estimations were calculated for each treatment. The germination test of Braquiaria decumbens seeds may be evaluated in 12 days after sowing using alternating temperatures of 20-35 °C and without any treatment to overcome dormancy.Universidade Estadual Paulista/UNESP, Campus de Botucatu, Fazenda Experimental LageadoUniversidade Estadual Paulista/UNESP, Campus de JaboticabalUniversidade Estadual Paulista/UNESP, Campus de Botucatu, Fazenda Experimental LageadoUniversidade Estadual Paulista/UNESP, Campus de JaboticabalUniversidade Estadual Paulista (Unesp)Tomaz, Camila de Aquino [UNESP]Martins, Cibele Chalita [UNESP]Sanches, Mauricio Feis Ganz [UNESP]Vieira, Roberval Daiton [UNESP]2018-12-11T17:25:55Z2018-12-11T17:25:55Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article488-497application/pdfhttp://dx.doi.org/10.1590/S1413-70542015000500007Ciencia e Agrotecnologia, v. 39, n. 5, p. 488-497, 2015.1981-18291413-7054http://hdl.handle.net/11449/17754410.1590/S1413-70542015000500007S1413-705420150005004882-s2.0-84944455947S1413-70542015000500488.pdf96698336633254450000-0002-1720-9252Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCiencia e Agrotecnologia0,383info:eu-repo/semantics/openAccess2024-06-07T13:55:36Zoai:repositorio.unesp.br:11449/177544Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-07T13:55:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Redução do tempo para o teste de germinação de sementes de capim-braquiária Time reduction for surinam grass seed germination test |
title |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
spellingShingle |
Redução do tempo para o teste de germinação de sementes de capim-braquiária Tomaz, Camila de Aquino [UNESP] Brachiaria decumbens Dormancy overcoming Ideal temperature |
title_short |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
title_full |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
title_fullStr |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
title_full_unstemmed |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
title_sort |
Redução do tempo para o teste de germinação de sementes de capim-braquiária |
author |
Tomaz, Camila de Aquino [UNESP] |
author_facet |
Tomaz, Camila de Aquino [UNESP] Martins, Cibele Chalita [UNESP] Sanches, Mauricio Feis Ganz [UNESP] Vieira, Roberval Daiton [UNESP] |
author_role |
author |
author2 |
Martins, Cibele Chalita [UNESP] Sanches, Mauricio Feis Ganz [UNESP] Vieira, Roberval Daiton [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Tomaz, Camila de Aquino [UNESP] Martins, Cibele Chalita [UNESP] Sanches, Mauricio Feis Ganz [UNESP] Vieira, Roberval Daiton [UNESP] |
dc.subject.por.fl_str_mv |
Brachiaria decumbens Dormancy overcoming Ideal temperature |
topic |
Brachiaria decumbens Dormancy overcoming Ideal temperature |
description |
The period for the germination test of Surinam grass seeds established by the Rules for Seeds Testing is 28 days, considered too lengthy by producers, venders, and seed analysis laboratories. So, the objective of this research was to evaluate the possibility of reducing the time for the germination test of Surinam grass seeds and to establish a method for dormancy breaking and the ideal temperature. Ten seed lots were submitted to the following treatments to overcome seed dormancy: control; substrate moistening with 0.2% KNO3; and scarification with sulfuric acid (98% 36 N) for 15 minutes. After the treatments, the lots were submitted to seed water content, germination and tetrazolium tests. During the germination test, conducted with four replicates of 100 seeds per treatment for 28 days, two conditions of alternating temperatures (20-35 °C and 15-35 °C) with 8 hours of light were tested. Attempting to determine the test end date, daily counts of the number of normal seedlings were made and for each lot, treatment, and temperature, a growth curve for the evaluation of germination was adjusted. The segmented regression model parameter estimations were calculated for each treatment. The germination test of Braquiaria decumbens seeds may be evaluated in 12 days after sowing using alternating temperatures of 20-35 °C and without any treatment to overcome dormancy. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2018-12-11T17:25:55Z 2018-12-11T17:25:55Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1413-70542015000500007 Ciencia e Agrotecnologia, v. 39, n. 5, p. 488-497, 2015. 1981-1829 1413-7054 http://hdl.handle.net/11449/177544 10.1590/S1413-70542015000500007 S1413-70542015000500488 2-s2.0-84944455947 S1413-70542015000500488.pdf 9669833663325445 0000-0002-1720-9252 |
url |
http://dx.doi.org/10.1590/S1413-70542015000500007 http://hdl.handle.net/11449/177544 |
identifier_str_mv |
Ciencia e Agrotecnologia, v. 39, n. 5, p. 488-497, 2015. 1981-1829 1413-7054 10.1590/S1413-70542015000500007 S1413-70542015000500488 2-s2.0-84944455947 S1413-70542015000500488.pdf 9669833663325445 0000-0002-1720-9252 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ciencia e Agrotecnologia 0,383 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
488-497 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045288735145984 |