PHYSIOLOGIC BEHAVIOR OF MYRACRODRUON URUNDEUVA (ANACARDIACEAE) Fr. All. SEEDS SUBMITTED TO ABIOTIC FACTORS

Detalhes bibliográficos
Autor(a) principal: Virgens, Ivana Oliveira
Data de Publicação: 2012
Outros Autores: Castro, Renato Delmondez de, Fernandez, Luzimar Gonzaga, Pelacani, Claudinéia Regina
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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spelling 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
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