Mahalanobis Distances
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Selection in segregating populations of ornamental pepper plants (Capsicum annuum L.) using multidimensional scaling
ABSTRACT Multidimensional scaling is a multivariate analysis technique that can be used to exploit genetic diversity, aiming at the selection of Capsicum genotypes with desirable characteristics for in-pot ornamental purposes. This work aimed to select genotypes with ornamental potential within F4 populations of ornamental pepper plants. Three F4 families we
Rev. Ceres. Publicado em: 2020-12
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2. Craniofacial geometric morphometrics in the identification of patients with sickle cell anemia and sickle cell trait
ABSTRACT Objective: The aims of this study were to identify the main characteristics regarding the shape and size of the craniofacial region in patients with sickle cell anemia (SCA) and sickle cell trait (SCT) and in unaffected patients using geometric morphometrics and to check the efficiency of this method. Material and Methods: A cross-sectional analyt
Hematol., Transfus. Cell Ther.. Publicado em: 2020-10
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3. ResistÃncia genÃtica e induzida de Vigna unguiculata (L.) Walp. Ã Aphis craccivora Koch e sua amostragem / Genetic and induced resistance in Vigna unguiculata (L.) Walp. to Aphis craccivora Koch and its sampling
The objective of this work were: to evaluate resistance of cowpea genotypes [Vigna unguiculata (L.) Walp.] to the black aphid [Aphis craccivora Koch, 1854] and to study the genetic variability of these genotypes for this feature; to evaluate the possible inducible action of cis-jasmone to resistance to this pest; to study the spatial dispersion of the aphid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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4. Divergencia genetica entre populacoes de coqueiro-gigante-do-Brasil.
O presente trabalho teve como objetivo estudar a divergencia genetica entre cinco populacoes de coqueiro-gigante-do-brasil (Cocos nucifera L.): Pacatuba, SE, Praia do Forte, BA, Merepe, PE, Santa Rita, PE e Sao Jose do Mipibu, RN, por meio de tecnicas de analise multivariada, utilizando-se as variaveis canonicas e as distancias de Mahalanobis. Essas tecnicas
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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5. Discrimination of native wood charcoal by infrared spectroscopy
Brazil is one of the largest producers and consumers of charcoal in the world. About 50% of its charcoal comes from native forests, with a large part coming from unsustainable operations. The anatomic identification of charcoal is subjective; an instrumental technique would facilitate the monitoring of forests. This study aimed to verify the feasibility of u
Química Nova. Publicado em: 2010
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6. Morphological characterization, yield performance and genetic divergence of genotypes of sweet potato. / Caracterização morfológica, desempenho produtivo e divergência genética de genótipos de batata-doce.
Aiming to characterize morphologically the genotypes of sweet potato, to estimate the genetic divergence and to evaluate the yield performance in the edaphoclimatics conditions in the municipality of Junqueiro, Alagoas, Brazil, an experiment was developed, consisting of two varieties and nine clones, in the randomized blocks design with three replications. F
Publicado em: 2008
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7. Estabilidade em análise de agrupamento (cluster analysis) / Stability in cluster analysis
The main objective of this research was to propose a systematic to the study and interpretation of the stability of methods in cluster analysis through many cluster algorithms in vegetation data. The data set used came from a survey in the Silviculture Forest at Federal University of Viçosa MG. To perform the cluster analysis the matrices of Mahalanobis dis
Publicado em: 2005
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8. Avaliação da diversidade genética de populações de fáfia (Pfaffia glomerata (Spreng.) Pedersen) por RAPD, caracteres morfológicos e teor de beta-ecdisona / Genetic diversity of pfaffia populations (Pfaffia glomerata (Spreng.) Pedersen) by RAPD, morphological characters and ß-ecdisone contents
Pfaffia (Pfaffia glomerata (Spreng.) Pedersen) is a native species of South America with widespread occurrence in the States of Paraná, Mato Grosso do Sul and Goiás. Its economic value is mainly due to the similarity of their phytochemical characteristics to the Korean-ginseng (Panax ginseng). Research institutions are carrying out continual germplasm coll
Publicado em: 2005