Data/hora: 11/06/2024 17:34:13

Biblioteca(s): | Embrapa Arroz e Feijão.
Data corrente: | 07/03/2006
Data da última atualização: | 20/03/2006
Autoria: | CINTRA, M. M. D. F.; PINHEIRO, J. B.; SIBOV, S. T.
Título: | Genetic divergence among Curcuma longa L. accessions.
Ano de publicação: | 2005
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 4, p. 410-417, Dec. 2005.
Idioma: | Inglês
Conteúdo: | The genetic divergence among 21 turmeric genotypes from Goias, Sao Paulo and Minas Gerais, Brazil, was evaluated based on morpho-agronomic traits and on multivariate procedures to select divergent high-yielding genotypes. The experiment was carried out from 2001 to 2003 in a randomized block design with 4 replications. Six descriptors of rhizome production (number of heads, head weight, number of fingers, finger weight, total weight, dry weight and curcuminoid content) of rhizome production and curcuminoid content were evaluated. Based on Mahalanobis' distance matrix, Tocher's clustering and single linkage clustering, and analysis of canonical variables were conducted. The relative importance of the descriptors was also evaluated. Multivariate analysis techniques allowed the effective study of genetic divergence and the grouping of the 21 accessions into 5 clusters. Cucurminoid content and dry weight contributed the most to genetic divergence and allowed the selection of the best accessions for breeding programmes for the development of high-yielding genotypes with high contents of cucurminoids..
Palavras-Chave: | Algoritmo de Tocher; Análise multivariada; Divergência genética; Genetic divergence; Tocher algorithm.
Thesagro: | Açafrão.
Thesaurus Nal: | multivariate analysis; turmeric.
Categoria do assunto: | --
Registro original: | Embrapa Arroz e Feijão (CNPAF)
Exemplares: | CNPAF - (23343-1) - ADD - AP - -- - 631.05 - C - 2005.00411 - DIS