Abstract

MEDINA-GUTIERREZ, JULIÁN; OSPINA-TORRES, RODULFO  and  NATES-PARRA, GUIOMAR. Effects of Altitudinal Variation on Pollination in Purple Passion Fruit Crops (Passiflora edulis F. edulis). Acta biol.Colomb. [online]. 2012, vol.17, n.2, pp.381-396. ISSN 0120-548X.

The purpose of this paper is to study in two crops of purple passionfruit Passiflora edulis f. edulis harvested at different altitudes (2225 m.a.s.l. and 1657 m.a.s.l.) in the municipality of Buenavista - Boyacá, located in the eastern Mountain range of Colombia, in order to familiarize with visitors and pollinators. This study reveals that in both crops there were differences found in composition, the number of visitors and pollinators. In the crop at 2225 m.a.s.l., 7 species were registered, while 18 species were recorded at the 1657 m.a.s.l. crop. In order to achieve this, collected material by the visitors and the floral structures with which they approach, were observed; at the same time four experiments took place: passive pollination, natural pollination, manual pollination and pollinator's efficiency. These experiments established that pollinator species are: in C1 Apis mellifera, and in C2 and Xylocopa frontalis, Xylocopa lachnea and Epicharis sp.

Keywords : Colombia; Passiflora edulis f; edulis; purple passion fruit; pollination; floral visitors.

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