Genetic diversity of a Brazilian wine grape germplasm collection based on morphoagronomic traits.

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dc.contributorPATRICIA COELHO DE SOUZA LEAO, CPATSA
dc.contributorCOSME DAMIÃO CRUZ, UNIVERSIDADE FEDERAL E VIÇOSA
dc.contributorSÉRGIO YOSHIMITSU MOTOIKE, UNIVERSIDADE FEDERAL E VIÇOSA.
dc.creatorLEAO, P. C. de S.
dc.creatorCRUZ, C. D.
dc.creatorMOTOIKE, S. Y.
dc.date2011-04-09T21:09:17Z
dc.date2011-04-09T21:09:17Z
dc.date2011-02-22
dc.date2010
dc.date2011-04-10T11:11:11Z
dc.date.accessioned2026-07-07T05:37:50Z
dc.descriptionThe objectives of this study were to evaluate the performance of cultivars, to quantify the variability and to estimate the genetic distances of 66 wine grape accessions in the Grape Germplasm Bank of the EMBRAPA Semi-Arid, in Juazeiro, BA, Brazil, through the characterization of discrete and con- tinuous phenotypic variables. Multivariate statistics, such as, principal components, Tocher’s optimization procedure, and the graphic of the distance, were efficient in grouping more similar genotypes, according to their phenotypic characteristics. There was no agreement in the formation of groups between continuous and discrete morpho-agronomic traits, when Tocher’s optimization procedure was used. Discrete variables allowed the separation of Vitis vinifera and hybrids in different groups. Significant positive correlations were observed between weight, length and width of bunches, and a negative correlation between titratable acidity and TSS/TTA. The major part (84.12%) of the total variation present in the original data was explained by the four principal components. The results revealed little variability between wine grape accessions in the Grape Germplasm Bank of Embrapa Semi-Arid.
dc.identifierRevista Brasileira de Fruticultura, v. 32, n. 4, p. 1164-1172, 2010.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/878380
dc.identifier.urihttp://hdl.handle.net/123456789/496783
dc.languageeng
dc.rightsopenAccess
dc.subjectVitivinicultura
dc.subjectCultivares
dc.subjectAnálise multivariada
dc.subjectDiversidade genética
dc.subjectUva
dc.subjectGermoplasma
dc.subjectVinho
dc.subjectGrapes
dc.subjectWines
dc.titleGenetic diversity of a Brazilian wine grape germplasm collection based on morphoagronomic traits.
dc.typeArtigo de periódico

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