Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds

Detalhes bibliográficos
Autor(a) principal: Ataíde, Glauciana da Batista
Data de Publicação: 2016
Outros Autores: e Borges, Eduardo Euclydes de Limae E., Gonçalves, José Francisco Carvalho de, Guimarães, Valéria Monteze, Flôres, Andressa Vasconcelos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15395
Resumo: During germination, a series of sequential events occur in seeds in response to endogenous and / or exogenous factors. The objective of this study was to investigate the physiological changes resulting from the controlled hydration in water and temperature in seeds of jacaranda-da-bahia (Dalbergia nigra). To this end, two lots of seeds separated as high and low vigor were used in the tests. Seeds belonging to the two lots, after desinfect, were hydrated in water, with the method of humid atmosphere (relative humidity 95-99%) to reach four hydration levels: 10, 15, 20 and 25% moisture content in seeds, in temperatures (exogenous factor) of 15 and 25 ° C. After hydration and temperature treatments, were analyzed the following variables: curve soaking, germination percentage, germination speed index (GSI) and electrical conductivity. The results showed no significant difference in seeds physiological response between the temperatures. On the other hand, for hydration was found that up to 15% moisture content increased the seeds physiological quality of both lots, which showed higher germination values, IVG and smaller amounts of leached compounds. From 15% moisture content were found a reduction in the quality of seeds classified as high vigor, while those of low vigor continued to show positive responses in 20 and 25% humidity. Given this, it is concluded that the technique of controlled hydration in water favors the germination of Dalbergia nigra seeds, independent of the vigor. Hydration moisture content of 15% is more appropriate to increase the seeds quality. The hydration in values below or above resulted in a decrease in the stimulus. © 2016, Universidade Federal de Santa Maria. All Rights Reserved.
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spelling Ataíde, Glauciana da Batistae Borges, Eduardo Euclydes de Limae E.Gonçalves, José Francisco Carvalho deGuimarães, Valéria MontezeFlôres, Andressa Vasconcelos2020-05-08T20:40:40Z2020-05-08T20:40:40Z2016https://repositorio.inpa.gov.br/handle/1/1539510.5902/1980509822761During germination, a series of sequential events occur in seeds in response to endogenous and / or exogenous factors. The objective of this study was to investigate the physiological changes resulting from the controlled hydration in water and temperature in seeds of jacaranda-da-bahia (Dalbergia nigra). To this end, two lots of seeds separated as high and low vigor were used in the tests. Seeds belonging to the two lots, after desinfect, were hydrated in water, with the method of humid atmosphere (relative humidity 95-99%) to reach four hydration levels: 10, 15, 20 and 25% moisture content in seeds, in temperatures (exogenous factor) of 15 and 25 ° C. After hydration and temperature treatments, were analyzed the following variables: curve soaking, germination percentage, germination speed index (GSI) and electrical conductivity. The results showed no significant difference in seeds physiological response between the temperatures. On the other hand, for hydration was found that up to 15% moisture content increased the seeds physiological quality of both lots, which showed higher germination values, IVG and smaller amounts of leached compounds. From 15% moisture content were found a reduction in the quality of seeds classified as high vigor, while those of low vigor continued to show positive responses in 20 and 25% humidity. Given this, it is concluded that the technique of controlled hydration in water favors the germination of Dalbergia nigra seeds, independent of the vigor. Hydration moisture content of 15% is more appropriate to increase the seeds quality. The hydration in values below or above resulted in a decrease in the stimulus. © 2016, Universidade Federal de Santa Maria. All Rights Reserved.Volume 26, Número 2, Pags. 615-625Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessPhysiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seedsAlterações fisiológicas durante a hidratação de sementes de Dalbergia nigra ((Vell.) Fr. All. ex Benth.)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleCiência Florestalporreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfartigo-inpa.pdfapplication/pdf753195https://repositorio.inpa.gov.br/bitstream/1/15395/1/artigo-inpa.pdfd52f4cc34cb88da20703ed229337a757MD511/153952020-07-14 11:05:56.482oai:repositorio:1/15395Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T15:05:56Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
dc.title.alternative.pt_BR.fl_str_mv Alterações fisiológicas durante a hidratação de sementes de Dalbergia nigra ((Vell.) Fr. All. ex Benth.)
title Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
spellingShingle Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
Ataíde, Glauciana da Batista
title_short Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
title_full Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
title_fullStr Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
title_full_unstemmed Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
title_sort Physiological changes during hydration of dalbergia nigra ((vell.) Fr. All. ex Benth.) seeds
author Ataíde, Glauciana da Batista
author_facet Ataíde, Glauciana da Batista
e Borges, Eduardo Euclydes de Limae E.
Gonçalves, José Francisco Carvalho de
Guimarães, Valéria Monteze
Flôres, Andressa Vasconcelos
author_role author
author2 e Borges, Eduardo Euclydes de Limae E.
Gonçalves, José Francisco Carvalho de
Guimarães, Valéria Monteze
Flôres, Andressa Vasconcelos
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Ataíde, Glauciana da Batista
e Borges, Eduardo Euclydes de Limae E.
Gonçalves, José Francisco Carvalho de
Guimarães, Valéria Monteze
Flôres, Andressa Vasconcelos
description During germination, a series of sequential events occur in seeds in response to endogenous and / or exogenous factors. The objective of this study was to investigate the physiological changes resulting from the controlled hydration in water and temperature in seeds of jacaranda-da-bahia (Dalbergia nigra). To this end, two lots of seeds separated as high and low vigor were used in the tests. Seeds belonging to the two lots, after desinfect, were hydrated in water, with the method of humid atmosphere (relative humidity 95-99%) to reach four hydration levels: 10, 15, 20 and 25% moisture content in seeds, in temperatures (exogenous factor) of 15 and 25 ° C. After hydration and temperature treatments, were analyzed the following variables: curve soaking, germination percentage, germination speed index (GSI) and electrical conductivity. The results showed no significant difference in seeds physiological response between the temperatures. On the other hand, for hydration was found that up to 15% moisture content increased the seeds physiological quality of both lots, which showed higher germination values, IVG and smaller amounts of leached compounds. From 15% moisture content were found a reduction in the quality of seeds classified as high vigor, while those of low vigor continued to show positive responses in 20 and 25% humidity. Given this, it is concluded that the technique of controlled hydration in water favors the germination of Dalbergia nigra seeds, independent of the vigor. Hydration moisture content of 15% is more appropriate to increase the seeds quality. The hydration in values below or above resulted in a decrease in the stimulus. © 2016, Universidade Federal de Santa Maria. All Rights Reserved.
publishDate 2016
dc.date.issued.fl_str_mv 2016
dc.date.accessioned.fl_str_mv 2020-05-08T20:40:40Z
dc.date.available.fl_str_mv 2020-05-08T20:40:40Z
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 https://repositorio.inpa.gov.br/handle/1/15395
dc.identifier.doi.none.fl_str_mv 10.5902/1980509822761
url https://repositorio.inpa.gov.br/handle/1/15395
identifier_str_mv 10.5902/1980509822761
dc.language.iso.fl_str_mv por
language por
dc.relation.ispartof.pt_BR.fl_str_mv Volume 26, Número 2, Pags. 615-625
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Ciência Florestal
publisher.none.fl_str_mv Ciência Florestal
dc.source.none.fl_str_mv reponame:Repositório Institucional do INPA
instname:Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron:INPA
instname_str Instituto Nacional de Pesquisas da Amazônia (INPA)
instacron_str INPA
institution INPA
reponame_str Repositório Institucional do INPA
collection Repositório Institucional do INPA
bitstream.url.fl_str_mv https://repositorio.inpa.gov.br/bitstream/1/15395/1/artigo-inpa.pdf
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