Print version ISSN 0034-737X
SILVA, Danielle Fabíola Pereira da et al. Genetic diversity among cultivars of mango based on fruit quality traits. Rev. Ceres [online]. 2012, vol.59, n.2, pp. 225-232. ISSN 0034-737X. http://dx.doi.org/10.1590/S0034-737X2012000200011.
The mango crop is one of the most significant agribusiness in Brazil. Although there are many cultivars, cultivation has been done primarily with 'Tommy Atkins' and there are few studies on characterization and analysis of genetic diversity in different areas of production. Therefore, the objective of this work was to study the genetic diversity of fifteen mango cultivars, eight from Brazil and seven from Florida (USA), produced in the Zona da Mata Mineira region. Fifteen ripe fruits from each cultivar were collected and analyzed chemically and physically. The cultivars that showed more similarities were 'Kent' and 'Palmer'. 'Extrema' was not grouped with the others by the UPGMA clustering method. This analysis was also used for the separation of Brazilian and USA cultivars. The principal component analysis of the chemical characteristics did not group the cultivars 'Extrema' and 'Tommy Atkins' with the others. The physical characteristics showed the same separation obtained by the UPGMA method, except for the cultivar 'Extrema' that was grouped with other cultivars. There was correlation between the color of the pulp, hue angle, and total soluble sugar content and between the color of the peel, b* index and percentage of peel and pulp.
Keywords : Mangifera indica L.; correlation; clusters.