Biometria e qualidade fisiológica de sementes de diferentes matrizes de Tabebuia chrysotricha (Mart. Ex A. DC.) Stand I.

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDos Santos, Fabiana Silva
dc.creatorDe Paula, Rinaldo César
dc.creatorSabonaro, Débora Zumkeller
dc.creatorValadares, Jane
dc.date2014-05-27T11:23:55Z
dc.date2016-10-25T18:27:03Z
dc.date2014-05-27T11:23:55Z
dc.date2016-10-25T18:27:03Z
dc.date2009-06-01
dc.date.accessioned2017-04-06T01:36:13Z
dc.date.available2017-04-06T01:36:13Z
dc.identifierScientia Forestalis/Forest Sciences, v. 37, n. 82, p. 163-173, 2009.
dc.identifier1413-9324
dc.identifierhttp://hdl.handle.net/11449/71027
dc.identifierhttp://acervodigital.unesp.br/handle/11449/71027
dc.identifierWOS:000208715300006
dc.identifier2-s2.0-69549111293.pdf
dc.identifier2-s2.0-69549111293
dc.identifierhttp://www.ipef.br/publicacoes/scientia/nr82/cap06.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/892071
dc.descriptionThis study aimed to determine the variation in biometric and physiological quality traits of seeds proceeding from different mother trees of Tabebuia chrysotricha (Mart. ex. A. DC.) Standl. Biometric traits were determined for the size (length, width and thickness) and fresh matter of seed, in completely random design with eight replications of 50 units, the averages were compared by Scott-Knott test at 5% probability. To evaluate the physiological quality, initially the seed water content was obtained and tests of germination and of accelerated aging were conducted. The germination test was carried out under constant temperature of 25°C. For substrate two sheets of paper germitest were used. The characteristics evaluated were the percentage of germination and normal seedlings; speed germination index; peak value and mean daily germination; germination value; length and dry weight of seedlings and percentage of seed polyembryony; for these tests eight replications of 25 seeds per treatment were used. The accelerated aging test was conducted at 45°C for 72 hours, using four replications of 25 seeds; the seed water content was determined, as was the percentage of normal seedlings in the germination test. The statistical design was completely randomized and the means were compared by Scott-Knott test at 5% probability. Estimates of correlation coefficients were obtained between the traits evaluated. The results indicate the existence of significant variation be tween the mother trees for the biometric and seed quality traits. The use of seed obtained from a small number of mother trees can compromise the genetic representation of the species; the mixture of seeds obtained from different mother trees represented a good estimate of average behavior of the population.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languagepor
dc.relationScientia Forestalis/Forest Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBrazilian native trees
dc.subjectForest seeds
dc.subjectSeeds vigor
dc.subjectAccelerated aging
dc.subjectAccelerated aging test
dc.subjectAverage behavior
dc.subjectBiometric traits
dc.subjectConstant temperature
dc.subjectCorrelation coefficient
dc.subjectDry weight
dc.subjectGenetic representations
dc.subjectGermination index
dc.subjectGermination test
dc.subjectPeak values
dc.subjectSeed quality
dc.subjectStatistical design
dc.subjectBiometrics
dc.subjectPaper sheeting
dc.subjectPopulation statistics
dc.subjectProbability density function
dc.subjectQuality control
dc.subjectStatistical tests
dc.subjectWater content
dc.subjectSeed
dc.subjectGermination
dc.subjectMoisture Content
dc.subjectPhysiology
dc.subjectQuality Control
dc.subjectSeeds
dc.subjectStatistical Analysis
dc.subjectTabebuia
dc.subjectTrees
dc.titleBiometria e qualidade fisiológica de sementes de diferentes matrizes de Tabebuia chrysotricha (Mart. Ex A. DC.) Stand I.
dc.typeOtro


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