Anatomia de sementes e absorção de água e sua relação com a dormência de sementes de tento (Ormosia paraensis Ducke)

dc.contributorUniversidade do Estado do Amapá (UEAP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-06T16:53:22Z
dc.date.accessioned2022-12-19T18:59:28Z
dc.date.available2019-10-06T16:53:22Z
dc.date.available2022-12-19T18:59:28Z
dc.date.created2019-10-06T16:53:22Z
dc.date.issued2018-07-01
dc.identifierJournal of Seed Science, v. 40, n. 3, p. 237-245, 2018.
dc.identifier2317-1537
dc.identifierhttp://hdl.handle.net/11449/189823
dc.identifier10.1590/2317-1545v40n3177599
dc.identifierS2317-15372018000300237
dc.identifier2-s2.0-85055171727
dc.identifierS2317-15372018000300237.pdf
dc.identifier7074031097544904
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5370861
dc.description.abstractOrmosia paraensis Ducke has ornamental seeds widely used in the manufacture of bio-jewels and wood used in the furniture industry. For seedling production, the information on its seed physiology is scarce. Thus, the aim of this study was to assess methods for breaking dormancy and relate them to integument structure and water uptake by O. paraensis seeds. Seed dormancy-breaking was performed by mechanical scarification and soaking in sulfuric acid for 0, 15, 30, 60, 120, and 240 minutes. Dormancy‐broken seeds were compared with intact seeds. Seed integument is formed by a cuticle (hydrophobic substances), epidermis (macroesclereids of the palisade layer,), hypodermis (osteosclereids), and parenchyma cells. Intact seeds did not absorb water after 72 hours of soaking. The highest percentages and rates of seed germination were observed in treatments with mechanical scarification and soaking in sulfuric acid for 60 or 120 minutes. Seed soaking in sulfuric acid (H2SO4 p.a. 98.08%) for 60 or 120 minutes or mechanical scarification are adequate to overcome physical dormancy associated with O. paraensis seed integument impermeability to water or gases.
dc.languageeng
dc.relationJournal of Seed Science
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectBreaking dormancy
dc.subjectFabaceae (leguminosae)
dc.subjectGermination
dc.subjectScarification
dc.titleSeed anatomy and water uptake and their relation to seed dormancy of Ormosia paraensis Ducke
dc.titleAnatomia de sementes e absorção de água e sua relação com a dormência de sementes de tento (Ormosia paraensis Ducke)
dc.typeArtículos de revistas


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