Envelhecimento acelerado em sementes de Eucalyptus grandis Hill ex Maiden classificadas por tamanho

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dc.contributor.authorNakagawa, João [UNESP]
dc.contributor.authorMori, Edson Seizo [UNESP]
dc.contributor.authorDo Amaral, Weber Antonio Neves
dc.contributor.authorDe Mello, Eduardo José
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionSuzano de Papel e Celulose
dc.date.accessioned2014-05-27T11:20:22Z
dc.date.available2014-05-27T11:20:22Z
dc.date.issued2001-12-01
dc.description.abstractTwo experiments of seed ageing of Eucalyptus grandis Hill ex Maiden were carried out at laboratory conditions. In the first experiment, two seed lots were classified in two square mesh screens (< 0.84 to ≥ 0.71 mm and < 0.71 mm to ≥ 0.59 mm), submitted to 42 °C and 100% relative humidity, for 0, 8, 12, 24, and 32 hours of stress treatments. Seed germination tests were done with just aged seeds. The results showed that the stress period was not sufficient for ageing the seeds. In the second experiment, the best quality seed lot was separated in the same two sizes. The seeds were submitted under the same stress conditions of the first experiment but for 0, 48, 72, and 96 hours. The germination test was done right after the seeds were taken from the stress conditions, and with stored seeds at dry chamber (2 weeks and 26 months). It was concluded that both seed sizes reached 30% of moisture content under 72 hours of ageing conditions and showed significant germination losses when compared with seeds without ageing (control), as the moist seeds as the stored ones at dry chamber, for both 2 weeks and 26 months.en
dc.description.affiliationDepartamento de Producao Vegetal Faculdade de Ciencias Agronomicas UNESP - Botucatu, Caixa Postal 237, 18603-970 Botucatu, SP
dc.description.affiliationDepartamento de Ciencias Florestais ESALQ USP, Caixa Postal 9, 13400-970 Piracicaba, SP
dc.description.affiliationPesquisador da Cia Suzano de Papel e Celulose, Av. Brigadeiro Faria Lima 2100, 01452-919 São Paulo, SP
dc.description.affiliationUnespDepartamento de Producao Vegetal Faculdade de Ciencias Agronomicas UNESP - Botucatu, Caixa Postal 237, 18603-970 Botucatu, SP
dc.format.extent99-108
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr60/cap08.pdf
dc.identifier.citationScientia Forestalis/Forest Sciences, n. 60, p. 99-108, 2001.
dc.identifier.file2-s2.0-0035782899.pdf
dc.identifier.issn1413-9324
dc.identifier.lattes4724674295725958
dc.identifier.scopus2-s2.0-0035782899
dc.identifier.urihttp://hdl.handle.net/11449/66719
dc.language.isopor
dc.relation.ispartofScientia Forestalis/Forest Sciences
dc.relation.ispartofjcr0.500
dc.relation.ispartofsjr0,495
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectEucalyptus grandis
dc.subjectSeed ageing
dc.subjectSeed size
dc.subjectSeed storage
dc.subjectAtmospheric humidity
dc.subjectMoisture
dc.subjectQuality assurance
dc.subjectStress analysis
dc.subjectSeed sizes
dc.subjectSeed
dc.subjectAging
dc.subjectEucalyptus
dc.subjectGermination
dc.subjectHumidity
dc.subjectQuality Control
dc.subjectSeeds
dc.subjectStress Analysis
dc.titleEnvelhecimento acelerado em sementes de Eucalyptus grandis Hill ex Maiden classificadas por tamanhopt
dc.title.alternativeSeed ageing of Eucalyptus grandis Hill ex Maiden classified by sizeen
dc.typeArtigo
unesp.author.lattes4724674295725958
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.departmentProdução e Melhoramento Vegetal - FCApt

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