PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/7550 |
Resumo: | http://dx.doi.org/10.5902/198050987550The aim of this work was to evaluate germinating seeds of Myracrodruon urundeuva under different temperatures and hydrous potentials, the combination of both and the seeds viability after osmotic conditioning. The assay was conducted in a totally casual analysis with four repetition contained 50 seeds by treatment. The temperatures of 20, 25, 30, 33, 35 and 40ºC were tested with seeds soaked in distilled water. In another assay, the osmotic potentials of 0,0 (evidence) were tested; -0,2; -0,4; -0,6; -0,7; -0,8; -0,9; -1,0 e -1,2 MPa using PEG 6000 solutions. Based in these tests, it was established the best temperatures and the osmotic potentials of maximum germination, fifty percent of germination and no germination. After end of hydrous screening, no germinating seeds in no germinating potentials was tested for its capacity of germinating in water. Also, different temperatures were combined with different osmotic potentials. The seed germination Myracrodruon urundeuva starts in two days. At the temperature of 250C, it was obtained for maximum seed germination of the species at 330C for 50% of the seeds germinated and at 400C, the germination was zero. Regarding to water restriction induced -0.2 MPa, it was an optimum germination potential, the potential of -0.7 MPa 50% germination and from -0.9 MPa and germination was nil. The osmotic potentials of -0.9, -1.0 and -1.2 MPa, can be used for priming this species. The seeds of Myracrodruon urundeuva not tolerate the stresses of high temperatures and decreased water potential, concurrently, as they reduce the germination and seed vigor. |
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PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORSComportamento fisiológico de sementes de Myracrodruon urundeuva Fr. All. (Anacardiaceae) submetidas a fatores abióticosAroeira-do-sertãothermal screeningosmotic screeningaroeira-do-sertãoscreening térmicoscreening hídricohttp://dx.doi.org/10.5902/198050987550The aim of this work was to evaluate germinating seeds of Myracrodruon urundeuva under different temperatures and hydrous potentials, the combination of both and the seeds viability after osmotic conditioning. The assay was conducted in a totally casual analysis with four repetition contained 50 seeds by treatment. The temperatures of 20, 25, 30, 33, 35 and 40ºC were tested with seeds soaked in distilled water. In another assay, the osmotic potentials of 0,0 (evidence) were tested; -0,2; -0,4; -0,6; -0,7; -0,8; -0,9; -1,0 e -1,2 MPa using PEG 6000 solutions. Based in these tests, it was established the best temperatures and the osmotic potentials of maximum germination, fifty percent of germination and no germination. After end of hydrous screening, no germinating seeds in no germinating potentials was tested for its capacity of germinating in water. Also, different temperatures were combined with different osmotic potentials. The seed germination Myracrodruon urundeuva starts in two days. At the temperature of 250C, it was obtained for maximum seed germination of the species at 330C for 50% of the seeds germinated and at 400C, the germination was zero. Regarding to water restriction induced -0.2 MPa, it was an optimum germination potential, the potential of -0.7 MPa 50% germination and from -0.9 MPa and germination was nil. The osmotic potentials of -0.9, -1.0 and -1.2 MPa, can be used for priming this species. The seeds of Myracrodruon urundeuva not tolerate the stresses of high temperatures and decreased water potential, concurrently, as they reduce the germination and seed vigor.http://dx.doi.org/10.5902/198050987550O objetivo deste trabalho foi avaliar o comportamento germinativo de sementes de Myracrodruon urundeuva sob diferentes temperaturas e potenciais hídricos, a combinação destes, assim como a viabilidade das sementes após condicionamento osmótico. Os ensaios foram conduzidos em delineamento inteiramente casualizado, com quatro repetições de 50 sementes/tratamento. Foram testadas as temperaturas constantes de 20, 25, 30, 33, 35 e 40 ºC, com as sementes embebidas em água destilada. Em outro ensaio, testou-se os potenciais osmóticos de 0,0 (testemunha); -0,2; -0,4; -0,6; -0,7; -0,8; -0,9; -1,0 e -1,2 MPa, utilizando-se soluções de PEG (6000). A partir desses ensaios estabeleceram-se as temperaturas e os potenciais osmóticos de máxima germinação (temperatura e potencial ótimo), o de 50 % e a de germinabilidade nula. Ao final do ensaio de screening hídrico foi realizada uma averiguação da capacidade germinativa das sementes não germinadas nos potenciais osmótico onde a germinabilidade foi nula. Também foram combinados diferentes temperaturas com diferentes potenciais osmóticos. As sementes de Myracrodruon urundeuva iniciam a germinação em dois dias. Na temperatura de 25 ºC foi obtida a germinação máxima para as sementes da espécie, na de 33 ºC 50 % das sementes germinaram e na de 40 ºC, a germinabilidade foi nula. Com relação à restrição hídrica induzida, -0,2 MPa foi o potencial ótimo de germinabilidade, -0,7 MPa o potencial de 50 % de germinação e a partir de -0,9 Mpa a germinabilidade foi nula. Os potenciais osmóticos de -0,9; -1,0 e -1,2 MPa, podem ser utilizados para condicionamento osmótico desta espécie. As sementes de Myracrodruon urundeuva não toleram os estresses de altas temperaturas e diminuição dos potenciais osmóticos, concomitantemente, uma vez que reduzem a germinabilidade e o vigor das sementes.Universidade Federal de Santa Maria2012-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/755010.5902/198050987550Ciência Florestal; Vol. 22 No. 4 (2012); 681-692Ciência Florestal; v. 22 n. 4 (2012); 681-6921980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/7550/pdfVirgens, Ivana OliveiraCastro, Renato Delmondez deFernandez, Luzimar GonzagaPelacani, Claudinéia Reginainfo:eu-repo/semantics/openAccess2017-04-20T11:01:44Zoai:ojs.pkp.sfu.ca:article/7550Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-04-20T11:01:44Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS Comportamento fisiológico de sementes de Myracrodruon urundeuva Fr. All. (Anacardiaceae) submetidas a fatores abióticos |
title |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
spellingShingle |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS Virgens, Ivana Oliveira Aroeira-do-sertão thermal screening osmotic screening aroeira-do-sertão screening térmico screening hídrico |
title_short |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
title_full |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
title_fullStr |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
title_full_unstemmed |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
title_sort |
PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS |
author |
Virgens, Ivana Oliveira |
author_facet |
Virgens, Ivana Oliveira Castro, Renato Delmondez de Fernandez, Luzimar Gonzaga Pelacani, Claudinéia Regina |
author_role |
author |
author2 |
Castro, Renato Delmondez de Fernandez, Luzimar Gonzaga Pelacani, Claudinéia Regina |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Virgens, Ivana Oliveira Castro, Renato Delmondez de Fernandez, Luzimar Gonzaga Pelacani, Claudinéia Regina |
dc.subject.por.fl_str_mv |
Aroeira-do-sertão thermal screening osmotic screening aroeira-do-sertão screening térmico screening hídrico |
topic |
Aroeira-do-sertão thermal screening osmotic screening aroeira-do-sertão screening térmico screening hídrico |
description |
http://dx.doi.org/10.5902/198050987550The aim of this work was to evaluate germinating seeds of Myracrodruon urundeuva under different temperatures and hydrous potentials, the combination of both and the seeds viability after osmotic conditioning. The assay was conducted in a totally casual analysis with four repetition contained 50 seeds by treatment. The temperatures of 20, 25, 30, 33, 35 and 40ºC were tested with seeds soaked in distilled water. In another assay, the osmotic potentials of 0,0 (evidence) were tested; -0,2; -0,4; -0,6; -0,7; -0,8; -0,9; -1,0 e -1,2 MPa using PEG 6000 solutions. Based in these tests, it was established the best temperatures and the osmotic potentials of maximum germination, fifty percent of germination and no germination. After end of hydrous screening, no germinating seeds in no germinating potentials was tested for its capacity of germinating in water. Also, different temperatures were combined with different osmotic potentials. The seed germination Myracrodruon urundeuva starts in two days. At the temperature of 250C, it was obtained for maximum seed germination of the species at 330C for 50% of the seeds germinated and at 400C, the germination was zero. Regarding to water restriction induced -0.2 MPa, it was an optimum germination potential, the potential of -0.7 MPa 50% germination and from -0.9 MPa and germination was nil. The osmotic potentials of -0.9, -1.0 and -1.2 MPa, can be used for priming this species. The seeds of Myracrodruon urundeuva not tolerate the stresses of high temperatures and decreased water potential, concurrently, as they reduce the germination and seed vigor. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-12-26 |
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.ufsm.br/cienciaflorestal/article/view/7550 10.5902/198050987550 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/7550 |
identifier_str_mv |
10.5902/198050987550 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/7550/pdf |
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 de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Florestal; Vol. 22 No. 4 (2012); 681-692 Ciência Florestal; v. 22 n. 4 (2012); 681-692 1980-5098 0103-9954 reponame:Ciência Florestal (Online) 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 Florestal (Online) |
collection |
Ciência Florestal (Online) |
repository.name.fl_str_mv |
Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br |
_version_ |
1799944128462585856 |