Por favor, use este identificador para citar o enlazar este ítem: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113193
Registro completo de metadatos
Campo DCValorLengua/Idioma
dc.contributor.authorGOMES, S. E. V.eng
dc.contributor.authorOLIVEIRA, G. M. deeng
dc.contributor.authorARAÚJO, M. do N.eng
dc.contributor.authorSEAL, C. E.eng
dc.contributor.authorDANTAS, B. F.eng
dc.date.accessioned2020-02-10T18:09:11Z-
dc.date.available2020-02-10T18:09:11Z-
dc.date.created2019-10-17
dc.date.issued2019
dc.identifier.citationFolia Geobotanica, v. 54, p. 19-28, 2019.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1113193-
dc.descriptionSeasonally tropical dry forests are among the most threatened environments by climate change. However, these forests, which are at risk of desertification, are still poorly studied and conserved. Seeds of several species endemic to the Caatinga, a Brazilian dry forest, are also understudied, mainly regarding their ability to cope with a hotter and drier climate predicted for the future. For the first time in seeds of Cenostigma microphyllum (Leguminosae), we aimed to study the presence of physical dormancy, temperature and salt tolerance to ascertain the effects of current and future climate on seed germination. Intact and scarified seeds were investigated by incubating at constant temperatures (15 to 40°C) or in NaCl solutions (?0.2 to ?1.0 MPa) at 25 and 30°C. Thermal and osmotic thresholds, as well as thermal time and hydrotime constants, were calculated using linear regressions between the germination conditions and germination rate. To predict germination in the future, a heat sum model based on thermal time and hydrotime was applied to current and future climate scenarios. Seeds of C. microphyllum were permeable to water and did not have physical dormancy. The results indicated that increases in temperature are unlikely to affect germination, despite greater sensitivity to salinity presented at higher temperatures. In a future climate, the reduction in the number of weeks with at least 15 mm rainfall will affect the germination timing for the seeds. Thus, we can conclude that under the most pessimistic climate scenario predicted for the future, the seed germination of C. microphyllum may be restricted, likely leading to low seedling recruitment and establishment.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectCenostigma microphyllumeng
dc.subjectEstresse por saleng
dc.titleInfluence of current and future climate on the seed germination of Cenostigma microphyllum (Mart. ex G. Don) E. Gagnon & G. P. Lewis.eng
dc.typeArtigo de periódicoeng
dc.date.updated2020-02-10T18:09:11Z
dc.subject.thesagroSementeeng
dc.subject.thesagroGerminaçãoeng
dc.subject.thesagroMudança Climáticaeng
dc.subject.thesagroTemperaturaeng
dc.subject.thesagroCaatingaeng
dc.subject.nalthesaurusTemperatureeng
dc.subject.nalthesaurusSalt stresseng
dc.subject.nalthesaurusClimate changeeng
riaa.ainfo.id1113193eng
riaa.ainfo.lastupdate2020-02-10
dc.identifier.doi10.1007/s12224-019-09353-4eng
dc.contributor.institutionSAMARA ELIZABETH VIEIRA GOMES, UNIVERSITY OF THE STATE OF BAHIAeng
dc.contributor.institutionGILMARA MOREIRA DE OLIVEIRA, UNIVERSITY OF FEIRA DE SANTANAeng
dc.contributor.institutionMARCELO DO NASCIMENTO ARAUJO, CENTRO UNIVERSITÁRIO MAURÍCIO DE NASSAUeng
dc.contributor.institutionCHARLOTTE E. SEAL, DEPARTMENT OF COMPARATIVE PLANT AND FUNGAL BIOLOGYeng
dc.contributor.institutionBARBARA FRANCA DANTAS, CPATSA.eng
Aparece en las colecciones:Artigo em periódico indexado (CPATSA)

Ficheros en este ítem:
Fichero Descripción TamañoFormato 
Influenceofcurrentandfutureclimate2019.pdf548.04 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro sencillo del ítem

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace