Efecto alelopático de especies invasoras de ribera sobre la germinación de especies del sotobosque
- M.E. Pérez Corona
- E. Crespo
- J. RODRIGO
- J.A. Santos
- P. de las Heras
- P. Castro-díez
- B.R. Vázquez de Aldana
- López-Carrasco Férnandez, Celia (coord.)
- María del Pilar Rodríguez Rojo (coord.)
- Alfonso San Miguel Ayanz (coord.)
- Federico Fernández González (coord.)
- Sonia Roig Gómez (coord.)
Argitaletxea: Sociedad Española para el Estudio de los Pastos
ISBN: 978-84-614-8713-4
Argitalpen urtea: 2011
Orrialdeak: 189-193
Biltzarra: Sociedad Española para el Estudio de los Pastos. Reunión Científica (50. 2011. null)
Mota: Biltzar ekarpena
Laburpena
Plants produce allelopathic substances increasing their competitive success over other speciescoexisting within the same habitat, being able to eliminate them. Allelopathic substances inhibit germinationand growth of other species in the community. In the riverside forests, it has been detected,the presence of invasive tree species with demonstrated invasive potential in other ecosystems. Ourhypothesis is that invasive species could use the production of allelochemicals in an efficient way tocompete against native herbaceous species. The aim of this work was to assess the effects of leaf extractsof invasive species (Ulmus pumila, Robinia pseudoacacia, Ailanthus altissima) and native(Populus alba) on the germination of four grass species frequent in the forest understory bank of theriver Henares (Madrid). The results showed that extracts of alien and native species (except Siberianelm) decreased the germination speed of B. phoenicoides and B. sylvaticum. The effect of extracts inChenopodium album was not clear. The extracts of all alien species affected the germination speedof Dactylis glomerata.