Data/hora: 01/06/2024 17:07:49

Biblioteca(s): | Biblioteca Rui Tendinha.
Data corrente: | 11/07/2017
Data da última atualização: | 27/09/2017
Autoria: | DALCOMO, J. M.; VIEIRA, H. D.; FERREIRA, A.; LIMA, W. L.; FERRÃO, R. G.; FONSECA, A. F. A. da.; FERRÃO, M. A. G.; PARTELLI, F. L.
Afiliação: | J. M. Dalcomo, Instituto Federal do Espírito Santo; H. D. Vieira, Universidade Estadual do Norte Fluminense Darcy Ribeiro; A. Ferreira, Universidade Federal do Espírito Santo; L. W. Lima, Instituto Federal do Espírito Santo; Romário Gava Ferrão, Incaper; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; F. L. Partelli, Universidade Federal do Espírito Santo.
Título: | Evaluation of genetic divergence among clones of conilon coffee after scheduled cycle pruning.
Ano de publicação: | 2015
Fonte/Imprenta: | Genetics and Molecular Research v. 14, n. 4, p. 15417-15426, 2015.
Idioma: | Inglês
Conteúdo: | Coffea canephora genotypes from the breeding program of Instituto Capixaba de Pesquisa e Extensão Rural were evaluated, and genetic diversity was estimated with the aim of future improvement strategies. From an initial group of 55 genotypes, 18 from the region of Castelo, ES, were selected, and three clones of the cultivars "Vitória" and "robusta tropical." Upon completion of the scheduled cycle pruning, 17 morphoagronomic traits were measured in the 22 genotypes selected. The principal components method was used to evaluate the contributions relative to the traits. The genetic dissimilarity matrix was obtained through Mahalanobis generalized distance, and genotypes were grouped using the hierarchical method based on the mean of the distances. The most promising clones of Avaliação Castelo were AC02, AC03, AC12, AC13, AC22, AC24, AC26, AC27, AC28, AC29, AC30, AC35, AC36, AC37, AC39, AC40, AC43, and AC46. These methods detected high genetic variability, grouping, by similarity, the genotypes in five groups. The trait that contributed the least to genetic divergence was the number of leaves in plagiotropic branches; however, this was not eliminated, because discarding it altered the groups. There are superior genotypes with potential for use in the next stages of the breeding program, aimed at both the composition of clonal variety and hybridizations.
Thesagro: | Clones; Coffea canephora; Genetic improvement; Multivariate analysis.
Thesaurus NAL: | Coffea canephora; Genetic improvement; Multivariate statistics.

Categoria do assunto:

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G Melhoramento Genético

URL:

http://biblioteca.incaper.es.gov.br/digital/bitstream/item/2734/1/BRT-Evaluationofgeneticdivergence.pdf
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/2812/1/BRT-Evaluation-of-genetic-divergence-ferrao-2015.pdf

Registro original: | Biblioteca Rui Tendinha (BRT)

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