Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1519-69842006000400015 http://hdl.handle.net/11449/69037 |
Resumo: | The regeneration of plant communities from seed depends, to a large extent, on the capacity of the seed remaining viable in the soil. The viability and germination of artificially buried Psychotria vellosiana seeds in cerrado soil were studied, with the purpose of discovering some physio-ecological aspects of dispersed seeds and evaluating their potential to constitute a soil seed bank. Seed samples were placed in nylon envelopes and buried in the soil of a Cerrado reserve at two different depths and sites. Buried seeds were retrieved periodically and tested for germination along with dry-stored seeds. In general, there was a reduction in seed germination with storage time, both in soil and dry stored conditions, and in some assays exhumed seeds germinated faster than dry stored ones. In general the soil storage favoured seed viability of ungerminated seeds as compared to dry stored ones, with the seeds remaining partially viable after 10 months of storage. The lack of germination of viable seeds suggests that seeds showed true dormancy and/or required an extended time to germinate. It was observed that some seeds had germinated while buried and such in situ germination tended to increase with rainfall. The water availability in the soil might be a limiting factor for successful germination of P. vellosiana in the field, and the seeds may constitute a persistent soil seed bank in the cerrado as dispersed seeds remain viable in the soil until the following period of seed dispersal. |
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Repositório Institucional da UNESP |
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Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seedsDispersal unitsDormancyPhysio-ecologyPsychotria vellosianagerminationgrowth, development and agingphysiologyplant seedPsychotriaseasonsoiltimeGerminationSeasonsSeedsSoilTime FactorsRubiaceaeThe regeneration of plant communities from seed depends, to a large extent, on the capacity of the seed remaining viable in the soil. The viability and germination of artificially buried Psychotria vellosiana seeds in cerrado soil were studied, with the purpose of discovering some physio-ecological aspects of dispersed seeds and evaluating their potential to constitute a soil seed bank. Seed samples were placed in nylon envelopes and buried in the soil of a Cerrado reserve at two different depths and sites. Buried seeds were retrieved periodically and tested for germination along with dry-stored seeds. In general, there was a reduction in seed germination with storage time, both in soil and dry stored conditions, and in some assays exhumed seeds germinated faster than dry stored ones. In general the soil storage favoured seed viability of ungerminated seeds as compared to dry stored ones, with the seeds remaining partially viable after 10 months of storage. The lack of germination of viable seeds suggests that seeds showed true dormancy and/or required an extended time to germinate. It was observed that some seeds had germinated while buried and such in situ germination tended to increase with rainfall. The water availability in the soil might be a limiting factor for successful germination of P. vellosiana in the field, and the seeds may constitute a persistent soil seed bank in the cerrado as dispersed seeds remain viable in the soil until the following period of seed dispersal.Departamento de Botânica Instituto de Biociências Universidade Estadual Paulista Julio de Mesquita Filho, C. P. 199, CEP 13506-900, Rio Claro, SPDepartamento de Botânica Instituto de Biociências Universidade Estadual Paulista Julio de Mesquita Filho, C. P. 199, CEP 13506-900, Rio Claro, SPUniversidade Estadual Paulista (Unesp)Araújo, C. G. [UNESP]Cardoso, V. J M [UNESP]2014-05-27T11:21:57Z2014-05-27T11:21:57Z2006-08-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article709-717application/pdfhttp://dx.doi.org/10.1590/S1519-69842006000400015Brazilian Journal of Biology, v. 66, n. 2 B, p. 709-717, 2006.1519-69841678-4375http://hdl.handle.net/11449/6903710.1590/S1519-69842006000400015S1519-698420060004000152-s2.0-337468779462-s2.0-33746877946.pdf6960838311041673Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Biology0.7840,523info:eu-repo/semantics/openAccess2023-11-16T06:08:57Zoai:repositorio.unesp.br:11449/69037Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:49:09.856905Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
title |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
spellingShingle |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds Araújo, C. G. [UNESP] Dispersal units Dormancy Physio-ecology Psychotria vellosiana germination growth, development and aging physiology plant seed Psychotria season soil time Germination Seasons Seeds Soil Time Factors Rubiaceae |
title_short |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
title_full |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
title_fullStr |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
title_full_unstemmed |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
title_sort |
Storage in cerrado soil and germination of Psychotria vellosiana (Rubiaceae) seeds |
author |
Araújo, C. G. [UNESP] |
author_facet |
Araújo, C. G. [UNESP] Cardoso, V. J M [UNESP] |
author_role |
author |
author2 |
Cardoso, V. J M [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Araújo, C. G. [UNESP] Cardoso, V. J M [UNESP] |
dc.subject.por.fl_str_mv |
Dispersal units Dormancy Physio-ecology Psychotria vellosiana germination growth, development and aging physiology plant seed Psychotria season soil time Germination Seasons Seeds Soil Time Factors Rubiaceae |
topic |
Dispersal units Dormancy Physio-ecology Psychotria vellosiana germination growth, development and aging physiology plant seed Psychotria season soil time Germination Seasons Seeds Soil Time Factors Rubiaceae |
description |
The regeneration of plant communities from seed depends, to a large extent, on the capacity of the seed remaining viable in the soil. The viability and germination of artificially buried Psychotria vellosiana seeds in cerrado soil were studied, with the purpose of discovering some physio-ecological aspects of dispersed seeds and evaluating their potential to constitute a soil seed bank. Seed samples were placed in nylon envelopes and buried in the soil of a Cerrado reserve at two different depths and sites. Buried seeds were retrieved periodically and tested for germination along with dry-stored seeds. In general, there was a reduction in seed germination with storage time, both in soil and dry stored conditions, and in some assays exhumed seeds germinated faster than dry stored ones. In general the soil storage favoured seed viability of ungerminated seeds as compared to dry stored ones, with the seeds remaining partially viable after 10 months of storage. The lack of germination of viable seeds suggests that seeds showed true dormancy and/or required an extended time to germinate. It was observed that some seeds had germinated while buried and such in situ germination tended to increase with rainfall. The water availability in the soil might be a limiting factor for successful germination of P. vellosiana in the field, and the seeds may constitute a persistent soil seed bank in the cerrado as dispersed seeds remain viable in the soil until the following period of seed dispersal. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-08-15 2014-05-27T11:21:57Z 2014-05-27T11:21:57Z |
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 |
http://dx.doi.org/10.1590/S1519-69842006000400015 Brazilian Journal of Biology, v. 66, n. 2 B, p. 709-717, 2006. 1519-6984 1678-4375 http://hdl.handle.net/11449/69037 10.1590/S1519-69842006000400015 S1519-69842006000400015 2-s2.0-33746877946 2-s2.0-33746877946.pdf 6960838311041673 |
url |
http://dx.doi.org/10.1590/S1519-69842006000400015 http://hdl.handle.net/11449/69037 |
identifier_str_mv |
Brazilian Journal of Biology, v. 66, n. 2 B, p. 709-717, 2006. 1519-6984 1678-4375 10.1590/S1519-69842006000400015 S1519-69842006000400015 2-s2.0-33746877946 2-s2.0-33746877946.pdf 6960838311041673 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal of Biology 0.784 0,523 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
709-717 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128862736875520 |