Resumen

FORCONE, Alicia  y  MUNOZ, Miriam. Flowering of species with apicultural importance in the northwest of Santa Cruz, Argentina. Bol. Soc. Argent. Bot. [online]. 2009, vol.44, n.3-4, pp.393-403. ISSN 1851-2372.

With the aim of surveying the availability of sources of nectar and pollen in the northwest of Santa Cruz, the flowering phenology of 113 species from Los Antiguos Valley was recorded. The plants studied belonged to 36 families, from which the most represented in the flowering offer were Asteraceae, Fabaceae, Brassicaceae and Rosaceae. Of the total species surveyed, 47 are native, 40, naturalized and 26 cultivated. Peak flowering was registered at the end of November and beginnings of December with the maximum number of species in full flowering. Introduced plants dominated the flowerings during most of the apicultural period, except in the second half of October and during November, when native plants prevailed. Thirty-two species frequently visited by Apis mellifera L. were registered, three of them belonged to characteristic flora from the steppe: Mulinum spinosum (Cav.) Pers., Phacelia secunda J. F. Gmel. and Schinus marchandii F. A. Barkley

Palabras clave : Melliferous flora; Flowering offer; Patagonia.

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