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Revista Brasileira de Fruticultura

Print version ISSN 0100-2945On-line version ISSN 1806-9967

Abstract

MARTEL, Jorge Hugo Iriarte; FERRAUDO, Antonio Sergio; MORO, José Roberto  and  PERECIN, Dilermando. Multivariate analysis on discrimination of amazonic landraces of peach palm (Bactris gasipaes Kunth) in Manaus, Brazil. Rev. Bras. Frutic. [online]. 2003, vol.25, n.1, pp.115-118. ISSN 0100-2945.  http://dx.doi.org/10.1590/S0100-29452003000100033.

Landraces and populations of peach palm growing along the Amazon and Solimões rivers present great genetic variability, that it was not totally characterized yet. In the present study, multivariate techniques of cluster analysis, principal components analysis and discriminant analysis, were applied to fifteen morphological descriptors with the objective of morphometric characterizing three existing landraces of this plant along these rivers basins. The three analysis together allowed to discriminate the studied landraces, showing that the most important descriptors were: numbers of ears per raceme, rachis length, fruit weight, thickness of fruit bark, facility to peel fruits, weight of fruit bark, fruit flavor, pulp thickness, morphological distance of fruit and seed weight.

Keywords : Descriptors; multivariate analysis; principal component analysis; discriminant analysis and cluster analysis.

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