Título:	Genetic divergence among Psidium accessions based on biochemical and agronomic variables.
Autoria:	SANTOS, C. A. F. CORRÊA, L. C. COSTA, S. R. da
Afiliação:	CARLOS ANTONIO FERNANDES SANTOS, CPATSA; LUIZ CLÁUDIO CORRÊA, UNESP, Botucatu; SONIANE RODRIGUES COSTA.
Ano de publicação:	2011
Referência:	Crop Breeding and Applied Biotechnology, Londrina, v. 11, p. 149-156, 2011.
Conteúdo:	Sixty-nine Psidium accessions collected in six Brazilian states were analyzed by two non-hierarchical clustering methods and principal components (PC), to provide orientation for breeding programs. The variables ascorbic acid, β-carotene, lycopene, total phenols, total flavonoids, antioxidant activity, titrable acidity, soluble solids, total soluble sugars, moisture content, lateral and transversal fruit diameter, fruit pulp and seed weighs, and plant fruit number and weight were analyzed. Specific groups were observed for the araçazeiros accessions, by the Tocher and the k-means methods, as well as by the three-dimensional dispersion of the four PCs. The clustering separated accessions of araçazeiros from the guava. There was no specific grouping in nterms of States of origin, indicating the absence of barriers in the guava propagation accessions. Analyses suggested the collection of a greater number of guava germplasm samples from a smaller number of regions and divergent accessions with high nutritional compound levels to develop new cultivars
Thesagro:	Goiaba Psidium Guajava Pratica Cultural
NAL Thesaurus:	Guavas
Palavras-chave:	Cultivo Antioxidantes Compostos nutricionais Análise multivariada Divergência genética
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPATSA)