Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds
Main Author: | |
---|---|
Publication Date: | 2017 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Ciência Rural |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600201 |
Summary: | ABSTRACT: In this study, the aim was to determine the influence of potassium nitrate, using different concentrations and immersion times on the dormancy of the seeds of Brachiaria humidicola cv. ‘BRS Tupi’. Four experiments were performed adopting a factorial scheme (5x3+1) in different seed lots, for different post-harvest storage durations, during which the seeds were immersed in potassium nitrate solutions of different specific concentrations (0, 0.1, 0.3, 0.5 and 1% KNO3), for three exposure periods (12, 24 and 48h), plus one control (untreated), in a completely randomized design. The characteristics assessed included the imbibition curve, germination, first count and germination rate, as well as viability confirmed by using tetrazolium test. From the findings it was evident that treatments involving 0.1; 0.3; 0.5 and 1% KNO3 or pure water, with a 12 hour-soaking period enabled the stored seeds to germinate well for a minimum of eight months post harvest. Root protrusion was observed 24 hours post seed imbibition, whereas for the untreated seeds, satisfactory germination was observed from at least 12 months post harvest and, in most of the lots, between 18 and 24 months. |
id |
UFSM-2_740739403395e1e1b31bd1f0d469cb3a |
---|---|
oai_identifier_str |
oai:scielo:S0103-84782017000600201 |
network_acronym_str |
UFSM-2 |
network_name_str |
Ciência rural (Online) |
repository_id_str |
|
spelling |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seedsgerminationforagechemical treatmentABSTRACT: In this study, the aim was to determine the influence of potassium nitrate, using different concentrations and immersion times on the dormancy of the seeds of Brachiaria humidicola cv. ‘BRS Tupi’. Four experiments were performed adopting a factorial scheme (5x3+1) in different seed lots, for different post-harvest storage durations, during which the seeds were immersed in potassium nitrate solutions of different specific concentrations (0, 0.1, 0.3, 0.5 and 1% KNO3), for three exposure periods (12, 24 and 48h), plus one control (untreated), in a completely randomized design. The characteristics assessed included the imbibition curve, germination, first count and germination rate, as well as viability confirmed by using tetrazolium test. From the findings it was evident that treatments involving 0.1; 0.3; 0.5 and 1% KNO3 or pure water, with a 12 hour-soaking period enabled the stored seeds to germinate well for a minimum of eight months post harvest. Root protrusion was observed 24 hours post seed imbibition, whereas for the untreated seeds, satisfactory germination was observed from at least 12 months post harvest and, in most of the lots, between 18 and 24 months.Universidade Federal de Santa Maria2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600201Ciência Rural v.47 n.6 2017reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20160500info:eu-repo/semantics/openAccessLibório,Cláudia Barrios deVerzignassi,Jaqueline RosemeireFernandes,Celso DornelasValle,Cacilda Borges doLima,Natalia DiasMonteiro,Lenise Castilhoeng2017-04-11T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
title |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
spellingShingle |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds Libório,Cláudia Barrios de germination forage chemical treatment |
title_short |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
title_full |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
title_fullStr |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
title_full_unstemmed |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
title_sort |
Potassium nitrate on overcoming dormancy in Brachiaria humidicola ‘BRS Tupi’ seeds |
author |
Libório,Cláudia Barrios de |
author_facet |
Libório,Cláudia Barrios de Verzignassi,Jaqueline Rosemeire Fernandes,Celso Dornelas Valle,Cacilda Borges do Lima,Natalia Dias Monteiro,Lenise Castilho |
author_role |
author |
author2 |
Verzignassi,Jaqueline Rosemeire Fernandes,Celso Dornelas Valle,Cacilda Borges do Lima,Natalia Dias Monteiro,Lenise Castilho |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Libório,Cláudia Barrios de Verzignassi,Jaqueline Rosemeire Fernandes,Celso Dornelas Valle,Cacilda Borges do Lima,Natalia Dias Monteiro,Lenise Castilho |
dc.subject.por.fl_str_mv |
germination forage chemical treatment |
topic |
germination forage chemical treatment |
description |
ABSTRACT: In this study, the aim was to determine the influence of potassium nitrate, using different concentrations and immersion times on the dormancy of the seeds of Brachiaria humidicola cv. ‘BRS Tupi’. Four experiments were performed adopting a factorial scheme (5x3+1) in different seed lots, for different post-harvest storage durations, during which the seeds were immersed in potassium nitrate solutions of different specific concentrations (0, 0.1, 0.3, 0.5 and 1% KNO3), for three exposure periods (12, 24 and 48h), plus one control (untreated), in a completely randomized design. The characteristics assessed included the imbibition curve, germination, first count and germination rate, as well as viability confirmed by using tetrazolium test. From the findings it was evident that treatments involving 0.1; 0.3; 0.5 and 1% KNO3 or pure water, with a 12 hour-soaking period enabled the stored seeds to germinate well for a minimum of eight months post harvest. Root protrusion was observed 24 hours post seed imbibition, whereas for the untreated seeds, satisfactory germination was observed from at least 12 months post harvest and, in most of the lots, between 18 and 24 months. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600201 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600201 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20160500 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.47 n.6 2017 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140551330955264 |