EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência Florestal (Online) |
Texto Completo: | https://periodicos.ufsm.br/cienciaflorestal/article/view/1943 |
Resumo: | Pterogyne nitens Tul. is a arboreal species, with highlight requirements, growing in gaps, grass land and sandy soils . It could be used in streets, to recovery degradated areas with periodical floods. Priming is a post harvest technique, used to improve germination rate, seedling field emergence and stress tolerance. The aim of this work is to contrast, under stress conditions, different ways to the priming. The seeds with 12% of moisture content were selected, scarified with sulfuric acid during 15 min. Distilled water and mannitol solutions (-0.5 MPa and -1.0 MPa) were used to seeds pre imbibition, during 24h at 10oC. A half part of the premed seeds was drying until reach the initial moisture content, and the other part is immediately used in the tests. The accelerated aging was carried out at 100% of R.U. at 35 and 40oC; thermal stress at 60 and 70oC during 24h, and in last test, the seeds were immersed in distilled water at 10 on 27oC. All the tests were conducted with fours replicates of 20 seeds and the data registered were submitted to variance analysis and Tukey test. Seed viability and vigor decreased when stress intensity increased. The priming did not reversed this effect, but in general, mannitol solutions (-1.0 MPa) decreased the seed vigor. The primed seeds in distilled water or mannitol (-0.5 MPa) present an increase in the rate and germination percentage under stress condition. |
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EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESSEfeitos do condicionamento seguido ou não de secagem em sementes de Pterogyne nitens Tul. sob estresse.Field pea nutpre imbibitionwood species.Amendoim do campopré-embebiçãoespécie florestalPterogyne nitens Tul. is a arboreal species, with highlight requirements, growing in gaps, grass land and sandy soils . It could be used in streets, to recovery degradated areas with periodical floods. Priming is a post harvest technique, used to improve germination rate, seedling field emergence and stress tolerance. The aim of this work is to contrast, under stress conditions, different ways to the priming. The seeds with 12% of moisture content were selected, scarified with sulfuric acid during 15 min. Distilled water and mannitol solutions (-0.5 MPa and -1.0 MPa) were used to seeds pre imbibition, during 24h at 10oC. A half part of the premed seeds was drying until reach the initial moisture content, and the other part is immediately used in the tests. The accelerated aging was carried out at 100% of R.U. at 35 and 40oC; thermal stress at 60 and 70oC during 24h, and in last test, the seeds were immersed in distilled water at 10 on 27oC. All the tests were conducted with fours replicates of 20 seeds and the data registered were submitted to variance analysis and Tukey test. Seed viability and vigor decreased when stress intensity increased. The priming did not reversed this effect, but in general, mannitol solutions (-1.0 MPa) decreased the seed vigor. The primed seeds in distilled water or mannitol (-0.5 MPa) present an increase in the rate and germination percentage under stress condition.Pterogyne nitens Tul. é conhecida popularmente como amendoim do campo, é uma espécie arbórea, heliófita, secundária inicial que se regenera intensamente em áreas abertas e pastagens. Pode ser empregada como espécie ornamental e na reposição de mata ciliar, em locais sujeitos a inundações periódicas, em sítios arenosos e degradados. O condicionamento é uma técnica pós-colheita usada com o objetivo de aumentar a velocidade de germinação, emergência, bem como ampliar a tolerância a vários tipos de estresse. O objetivo deste trabalho foi avaliar a eficiência do condicionamento com ou sem secagem posterior em aumentar a resistência a diferentes tipos de estresse. As sementes selecionadas foram escarificadas com ácido sulfúrico durante 15 min. e depois condicionadas em água destilada e soluções de manitol -0,5 e -1,0 MPa durante 24h a 10oC. Para cada solução de condicionamento, o lote de sementes foi dividido em dois grupos, um dos quais foi seco até atingir o teor de umidade apresentado antes do condicionamento, e o segundo foi imediatamente usado nos testes. Os diferentes grupos de sementes foram expostos ao envelhecimento acelerado (100% U.R. sob 35 e 40oC), ao estresse térmico (24h a 60 e 70oC) e o teste de exaustão (24h submersos a 10 e 27oC). Para todos os testes foram utilizadas quatro repetições de 25 unidades e os dados de porcentagem e velocidade de germinação foram submetidos à análise de variância e ao teste de Tukey. Com o aumento da intensidade do estresse houve diminuição na germinação e no vigor das sementes, que as diferentes formas de condicionamento não reverteram. Em geral, o condicionamento com o uso manitol a -1,0 MPa diminuiu a qualidade fisiológica das sementes e, soluções a -0,5 MPa ou água destilada aumentaram a porcentagem e/ou velocidade de germinação de sementes submetidas aos diferentes tipos de estresse.Universidade Federal de Santa Maria2007-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsm.br/cienciaflorestal/article/view/194310.5902/198050981943Ciência Florestal; Vol. 17 No. 2 (2007); 119-128Ciência Florestal; v. 17 n. 2 (2007); 119-1281980-50980103-9954reponame:Ciência Florestal (Online)instname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMporhttps://periodicos.ufsm.br/cienciaflorestal/article/view/1943/1185Biruel, Rosângela PeresFilho, Aluísio Brígido BorbaAraújo, Eugênio Celso Emérito deFraccaro, Fernando O.Perez, Sonia Cristina Juliano Gualtieiri de Andradeinfo:eu-repo/semantics/openAccess2017-05-12T17:27:58Zoai:ojs.pkp.sfu.ca:article/1943Revistahttp://www.ufsm.br/cienciaflorestal/ONGhttps://old.scielo.br/oai/scielo-oai.php||cienciaflorestal@ufsm.br|| cienciaflorestal@gmail.com|| cf@smail.ufsm.br1980-50980103-9954opendoar:2017-05-12T17:27:58Ciência Florestal (Online) - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS Efeitos do condicionamento seguido ou não de secagem em sementes de Pterogyne nitens Tul. sob estresse. |
title |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
spellingShingle |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS Biruel, Rosângela Peres Field pea nut pre imbibition wood species. Amendoim do campo pré-embebição espécie florestal |
title_short |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
title_full |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
title_fullStr |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
title_full_unstemmed |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
title_sort |
EFFECTS OF PRIMING WITH OR WITHOUT DRYING ON Pterogyne nitens TUL. SEEDS UNDER STRESS |
author |
Biruel, Rosângela Peres |
author_facet |
Biruel, Rosângela Peres Filho, Aluísio Brígido Borba Araújo, Eugênio Celso Emérito de Fraccaro, Fernando O. Perez, Sonia Cristina Juliano Gualtieiri de Andrade |
author_role |
author |
author2 |
Filho, Aluísio Brígido Borba Araújo, Eugênio Celso Emérito de Fraccaro, Fernando O. Perez, Sonia Cristina Juliano Gualtieiri de Andrade |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Biruel, Rosângela Peres Filho, Aluísio Brígido Borba Araújo, Eugênio Celso Emérito de Fraccaro, Fernando O. Perez, Sonia Cristina Juliano Gualtieiri de Andrade |
dc.subject.por.fl_str_mv |
Field pea nut pre imbibition wood species. Amendoim do campo pré-embebição espécie florestal |
topic |
Field pea nut pre imbibition wood species. Amendoim do campo pré-embebição espécie florestal |
description |
Pterogyne nitens Tul. is a arboreal species, with highlight requirements, growing in gaps, grass land and sandy soils . It could be used in streets, to recovery degradated areas with periodical floods. Priming is a post harvest technique, used to improve germination rate, seedling field emergence and stress tolerance. The aim of this work is to contrast, under stress conditions, different ways to the priming. The seeds with 12% of moisture content were selected, scarified with sulfuric acid during 15 min. Distilled water and mannitol solutions (-0.5 MPa and -1.0 MPa) were used to seeds pre imbibition, during 24h at 10oC. A half part of the premed seeds was drying until reach the initial moisture content, and the other part is immediately used in the tests. The accelerated aging was carried out at 100% of R.U. at 35 and 40oC; thermal stress at 60 and 70oC during 24h, and in last test, the seeds were immersed in distilled water at 10 on 27oC. All the tests were conducted with fours replicates of 20 seeds and the data registered were submitted to variance analysis and Tukey test. Seed viability and vigor decreased when stress intensity increased. The priming did not reversed this effect, but in general, mannitol solutions (-1.0 MPa) decreased the seed vigor. The primed seeds in distilled water or mannitol (-0.5 MPa) present an increase in the rate and germination percentage under stress condition. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-06-30 |
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/1943 10.5902/198050981943 |
url |
https://periodicos.ufsm.br/cienciaflorestal/article/view/1943 |
identifier_str_mv |
10.5902/198050981943 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.ufsm.br/cienciaflorestal/article/view/1943/1185 |
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. 17 No. 2 (2007); 119-128 Ciência Florestal; v. 17 n. 2 (2007); 119-128 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_ |
1799944127095242752 |