Testes de vigor para avaliação da qualidade fisiológica de sementesde Sebastiania commersoniana (Baill.) Smith & Downs.

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSantos, Sérgio Roberto Garcia Dos
dc.creatorDe Paula, E. Rinaldo Cesar
dc.date2014-05-27T11:23:52Z
dc.date2016-10-25T18:26:54Z
dc.date2014-05-27T11:23:52Z
dc.date2016-10-25T18:26:54Z
dc.date2009-03-01
dc.date.accessioned2017-04-06T01:35:38Z
dc.date.available2017-04-06T01:35:38Z
dc.identifierScientia Forestalis/Forest Sciences, n. 81, p. 7-16, 2009.
dc.identifier1413-9324
dc.identifierhttp://hdl.handle.net/11449/70950
dc.identifierhttp://acervodigital.unesp.br/handle/11449/70950
dc.identifier2-s2.0-67749120789.pdf
dc.identifier2-s2.0-67749120789
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr81/cap01.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/892004
dc.descriptionThe objective of this work was to evaluate the efficiency of different vigor tests to assess S. commersoniana seeds physiological quality during storage. Therefore, seeds were stored in cloth bags, plastic bags and glass containers for 531 days, both at room temperature and in a cold chamber. Periodically samples were taken and the following tests were conducted: standard germination, germination speed index, first count after germination, seedlings fresh and dry matter, electrical conductivity (imbibitions for 2 and 24 hours) and accelerated aging, in order to monitoring the seeds physiologic quality. Data were submitted to polynomial regression analysis, for each of the combination of packaging/storage condition. The results obtained led to the following considerations: a) the speed germination index and the accelerated aging test permitted a good evaluation of the seed-lots quality; b) the first count of germination did not allow any prediction about seed lots vigor; c) seedling fresh and dry matter did not discriminate among seed lots; d) electrical conductivity test after 2 h imbibitions was not adequate to evaluate the seed lots vigor and e) the electric conductivity test with 24 h imbibitions was more adequate to differentiate among seed lots, but with little efficiency to discriminate among seed lots with intermediate vigor or with low quality differences.
dc.languagepor
dc.relationScientia Forestalis/Forest Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectAccelerated aging
dc.subjectElectrical conductivity
dc.subjectSeed storage
dc.subjectSeedlings performance
dc.subjectAccelerated aging test
dc.subjectCloth bags
dc.subjectDry matters
dc.subjectGermination index
dc.subjectGlass containers
dc.subjectLow qualities
dc.subjectPlastic bags
dc.subjectPolynomial regression
dc.subjectRoom temperature
dc.subjectElectric conductivity
dc.subjectPlastic containers
dc.subjectRegression analysis
dc.subjectSeed
dc.subjectTesting
dc.subjectQuality control
dc.titleTestes de vigor para avaliação da qualidade fisiológica de sementesde Sebastiania commersoniana (Baill.) Smith & Downs.
dc.typeOtro


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