The influence of the caruncle on the germination of castor seed under high salinity or low soil water content

Detalhes bibliográficos
Autor(a) principal: Severino, L. S.
Data de Publicação: 2012
Outros Autores: Cordoba G, O. J., Zanotto, M. D. [UNESP], Auld, D. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.15258/sst.2012.40.1.18
http://hdl.handle.net/11449/219797
Resumo: The caruncle is a structure present in the micropylar region of Euphorbiaceae seeds. This structure has the ecological function of promoting seed dispersal by ants (myrmecochory), but it is debated whether it also has an agronomical importance influencing seed germination. The influence of the caruncle on castor (Ricinus communis) seed germination was evaluated under low soil water content and high soil salinity. Seeds were germinated at soil water storage capacities varying from 22 to 50% and salinities (NaCl) varying from 0 to 10 dS m-1. The germination (%) increased following the increments in soil moisture, but the caruncle had no influence on this process at any moisture level. In one genotype, more root dry mass was produced when caruncle was excised. Increasing salinity reduced the percentage and speed of germination of castor seeds, but no influence of caruncle was detected. No evidence of caruncle influencing castor seed germination was found under low soil water content and high salinity.
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spelling The influence of the caruncle on the germination of castor seed under high salinity or low soil water contentThe caruncle is a structure present in the micropylar region of Euphorbiaceae seeds. This structure has the ecological function of promoting seed dispersal by ants (myrmecochory), but it is debated whether it also has an agronomical importance influencing seed germination. The influence of the caruncle on castor (Ricinus communis) seed germination was evaluated under low soil water content and high soil salinity. Seeds were germinated at soil water storage capacities varying from 22 to 50% and salinities (NaCl) varying from 0 to 10 dS m-1. The germination (%) increased following the increments in soil moisture, but the caruncle had no influence on this process at any moisture level. In one genotype, more root dry mass was produced when caruncle was excised. Increasing salinity reduced the percentage and speed of germination of castor seeds, but no influence of caruncle was detected. No evidence of caruncle influencing castor seed germination was found under low soil water content and high salinity.Embrapa AlgodãoTexas Tech University Dep. Plant and Soil Science, Lubbock, TX 79409-2122CORPOICAUniversidade Estadual PaulistaUniversidade Estadual PaulistaEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Dep. Plant and Soil ScienceCORPOICAUniversidade Estadual Paulista (UNESP)Severino, L. S.Cordoba G, O. J.Zanotto, M. D. [UNESP]Auld, D. L.2022-04-28T18:57:28Z2022-04-28T18:57:28Z2012-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article139-143http://dx.doi.org/10.15258/sst.2012.40.1.18Seed Science and Technology, v. 40, n. 1, p. 139-143, 2012.0251-0952http://hdl.handle.net/11449/21979710.15258/sst.2012.40.1.182-s2.0-84861078734Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSeed Science and Technologyinfo:eu-repo/semantics/openAccess2022-04-28T18:57:28Zoai:repositorio.unesp.br:11449/219797Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T18:57:28Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
title The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
spellingShingle The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
Severino, L. S.
title_short The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
title_full The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
title_fullStr The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
title_full_unstemmed The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
title_sort The influence of the caruncle on the germination of castor seed under high salinity or low soil water content
author Severino, L. S.
author_facet Severino, L. S.
Cordoba G, O. J.
Zanotto, M. D. [UNESP]
Auld, D. L.
author_role author
author2 Cordoba G, O. J.
Zanotto, M. D. [UNESP]
Auld, D. L.
author2_role author
author
author
dc.contributor.none.fl_str_mv Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
Dep. Plant and Soil Science
CORPOICA
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Severino, L. S.
Cordoba G, O. J.
Zanotto, M. D. [UNESP]
Auld, D. L.
description The caruncle is a structure present in the micropylar region of Euphorbiaceae seeds. This structure has the ecological function of promoting seed dispersal by ants (myrmecochory), but it is debated whether it also has an agronomical importance influencing seed germination. The influence of the caruncle on castor (Ricinus communis) seed germination was evaluated under low soil water content and high soil salinity. Seeds were germinated at soil water storage capacities varying from 22 to 50% and salinities (NaCl) varying from 0 to 10 dS m-1. The germination (%) increased following the increments in soil moisture, but the caruncle had no influence on this process at any moisture level. In one genotype, more root dry mass was produced when caruncle was excised. Increasing salinity reduced the percentage and speed of germination of castor seeds, but no influence of caruncle was detected. No evidence of caruncle influencing castor seed germination was found under low soil water content and high salinity.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
2022-04-28T18:57:28Z
2022-04-28T18:57:28Z
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/10.15258/sst.2012.40.1.18
Seed Science and Technology, v. 40, n. 1, p. 139-143, 2012.
0251-0952
http://hdl.handle.net/11449/219797
10.15258/sst.2012.40.1.18
2-s2.0-84861078734
url http://dx.doi.org/10.15258/sst.2012.40.1.18
http://hdl.handle.net/11449/219797
identifier_str_mv Seed Science and Technology, v. 40, n. 1, p. 139-143, 2012.
0251-0952
10.15258/sst.2012.40.1.18
2-s2.0-84861078734
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Seed Science and Technology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 139-143
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
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