Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5433/1679-0359.2021v42n3p963 http://hdl.handle.net/11449/208537 |
Resumo: | The main difficulty with propagating Urochloa humidicola Comum is the high percentage of seed dormancy. Thus, the objective of this study was to develop a treatment to overcome seed dormancy and promote seed germination of this species that can be applied at a large scale. This study was conducted in two stages. First, the following treatments were evaluated using one seed lot: control (without treatment), immersion in H2SO4 (98%, 36N) for 10 min, moistening the germination substrate with KNO3 (0.2%) and immersion in KNO3 at concentrations of 0%, 2%, 4%, 6%, and 8% for periods of 12, 24, 36, and 48 h, followed by drying in the shade. In the second stage, three seed lots were evaluated in all of the aforementioned treatments, except for those of immersion in 0% KNO3 and of all concentrations for 36 and 48 h. The seeds were evaluated for water content, germination, percentage of abnormal seedlings, dead and dormant seeds, first count, and average germination time. Immersion in the KNO3 solution was efficient in overcoming dormancy and promoting germination. To be used by companies, the immersion of seeds in a 4% KNO3 solution for 24 h was the most suitable treatment to overcome dormancy and promote the germination of U. humidicola Comum seeds. |
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Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seedsNitrato de potássio na superação da dormência de sementes de Urochloa humidicola ComumForageGerminationKNO3Physiological potentialQuicuio grassUrochloa humidicolaThe main difficulty with propagating Urochloa humidicola Comum is the high percentage of seed dormancy. Thus, the objective of this study was to develop a treatment to overcome seed dormancy and promote seed germination of this species that can be applied at a large scale. This study was conducted in two stages. First, the following treatments were evaluated using one seed lot: control (without treatment), immersion in H2SO4 (98%, 36N) for 10 min, moistening the germination substrate with KNO3 (0.2%) and immersion in KNO3 at concentrations of 0%, 2%, 4%, 6%, and 8% for periods of 12, 24, 36, and 48 h, followed by drying in the shade. In the second stage, three seed lots were evaluated in all of the aforementioned treatments, except for those of immersion in 0% KNO3 and of all concentrations for 36 and 48 h. The seeds were evaluated for water content, germination, percentage of abnormal seedlings, dead and dormant seeds, first count, and average germination time. Immersion in the KNO3 solution was efficient in overcoming dormancy and promoting germination. To be used by companies, the immersion of seeds in a 4% KNO3 solution for 24 h was the most suitable treatment to overcome dormancy and promote the germination of U. humidicola Comum seeds.Vale do Paraná S/A Industry Alcohol and SugarSão Paulo State University “Júlio de Mesquita Filho” School of Agrarian and Veterinary Sciences UNESP/FCAVUNESP/FCAVSão Paulo State University “Júlio de Mesquita Filho” School of Agrarian and Veterinary Sciences UNESP/FCAVUNESP/FCAVAlcohol and SugarUniversidade Estadual Paulista (Unesp)Pereira, Thaís SoaresJeromini, Tatiane Sanches [UNESP]Neves, Breno Rosa [UNESP]de Barros, Renato Téo [UNESP]Martins, Cibele Chalita [UNESP]2021-06-25T11:13:45Z2021-06-25T11:13:45Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article963-978http://dx.doi.org/10.5433/1679-0359.2021v42n3p963Semina:Ciencias Agrarias, v. 42, n. 3, p. 963-978, 2021.1679-03591676-546Xhttp://hdl.handle.net/11449/20853710.5433/1679-0359.2021v42n3p9632-s2.0-8510322278096698336633254450000-0002-1720-9252Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSemina:Ciencias Agrariasinfo:eu-repo/semantics/openAccess2021-10-23T19:02:14Zoai:repositorio.unesp.br:11449/208537Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:02:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds Nitrato de potássio na superação da dormência de sementes de Urochloa humidicola Comum |
title |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
spellingShingle |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds Pereira, Thaís Soares Forage Germination KNO3 Physiological potential Quicuio grass Urochloa humidicola |
title_short |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
title_full |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
title_fullStr |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
title_full_unstemmed |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
title_sort |
Potassium nitrate to overcome dormancy of Urochloa humidicola Comum seeds |
author |
Pereira, Thaís Soares |
author_facet |
Pereira, Thaís Soares Jeromini, Tatiane Sanches [UNESP] Neves, Breno Rosa [UNESP] de Barros, Renato Téo [UNESP] Martins, Cibele Chalita [UNESP] |
author_role |
author |
author2 |
Jeromini, Tatiane Sanches [UNESP] Neves, Breno Rosa [UNESP] de Barros, Renato Téo [UNESP] Martins, Cibele Chalita [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Alcohol and Sugar Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Pereira, Thaís Soares Jeromini, Tatiane Sanches [UNESP] Neves, Breno Rosa [UNESP] de Barros, Renato Téo [UNESP] Martins, Cibele Chalita [UNESP] |
dc.subject.por.fl_str_mv |
Forage Germination KNO3 Physiological potential Quicuio grass Urochloa humidicola |
topic |
Forage Germination KNO3 Physiological potential Quicuio grass Urochloa humidicola |
description |
The main difficulty with propagating Urochloa humidicola Comum is the high percentage of seed dormancy. Thus, the objective of this study was to develop a treatment to overcome seed dormancy and promote seed germination of this species that can be applied at a large scale. This study was conducted in two stages. First, the following treatments were evaluated using one seed lot: control (without treatment), immersion in H2SO4 (98%, 36N) for 10 min, moistening the germination substrate with KNO3 (0.2%) and immersion in KNO3 at concentrations of 0%, 2%, 4%, 6%, and 8% for periods of 12, 24, 36, and 48 h, followed by drying in the shade. In the second stage, three seed lots were evaluated in all of the aforementioned treatments, except for those of immersion in 0% KNO3 and of all concentrations for 36 and 48 h. The seeds were evaluated for water content, germination, percentage of abnormal seedlings, dead and dormant seeds, first count, and average germination time. Immersion in the KNO3 solution was efficient in overcoming dormancy and promoting germination. To be used by companies, the immersion of seeds in a 4% KNO3 solution for 24 h was the most suitable treatment to overcome dormancy and promote the germination of U. humidicola Comum seeds. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:13:45Z 2021-06-25T11:13:45Z 2021-01-01 |
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/10.5433/1679-0359.2021v42n3p963 Semina:Ciencias Agrarias, v. 42, n. 3, p. 963-978, 2021. 1679-0359 1676-546X http://hdl.handle.net/11449/208537 10.5433/1679-0359.2021v42n3p963 2-s2.0-85103222780 9669833663325445 0000-0002-1720-9252 |
url |
http://dx.doi.org/10.5433/1679-0359.2021v42n3p963 http://hdl.handle.net/11449/208537 |
identifier_str_mv |
Semina:Ciencias Agrarias, v. 42, n. 3, p. 963-978, 2021. 1679-0359 1676-546X 10.5433/1679-0359.2021v42n3p963 2-s2.0-85103222780 9669833663325445 0000-0002-1720-9252 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Semina:Ciencias Agrarias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
963-978 |
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_ |
1792961510835748864 |