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- Title
Divergência genética em genótipos de maracujazeiro azedo, com base em características físicas e químicas dos frutos.
- Authors
Chagas, Kristhiano; Sobreira Alexandre, Rodrigo; Romais Schmildt, Edilson; Horst Bruckner, Claudio; Gelape Faleiro, Fábio
- Abstract
The aim of the present work was to evaluate genetic divergence and physical and chemical characteristics in fruit of two populations of sour passion fruit in the northern region of the State of Espírito Santo, Brazil, these being half-sibling progenies from local accessions of a commercial crop (genotypes 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10) and the hybrid BRS Ouro Vermelho (genotypes: 11, 12, 13, 14, 15, 16, 17, 18, 19 and 20). Genetic divergence was evaluated using such multivariate procedures as the generalised Mahalanobis distance (D²) and the Tocher optimisation and UPGMA clustering methods. Genetic divergence was found between the populations under study, promoting the formation of different groups between the Tocher and UPGMA methods. As characteristics for fruit size, the polar and equatorial diameters had the most impact on the genetic diversity of the genotypes. In the populations of sour passion fruit being studied, great genetic variability is seen in the evaluated characteristics, making it possible to select plants of high potential for breeding purposes. The BRS Ouro Vermelho hybrid is well adapted to the local conditions.
- Publication
Revista Ciência Agronômica, 2016, Vol 47, Issue 3, p524
- ISSN
0045-6888
- Publication type
Article
- DOI
10.5935/1806-6690.20160063