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- W2284635569 abstract "catalaEn aquest treball s'estudia l'efecte que te el pas de les llavors de Solallum luteum i de S. Iligrum pel tracte digestiu del Busqueret de cap negre (Sylvia melanocephala) i de la Merlera (Turdus merula) sobre la seva germinacio. Les dades obtingudes indiquen que el percentatge i la taxa de germinacio de les llavors de S. luteum augmenta si aquestes son ingerides per qualsevol d 'aquestes dues especies d'ocell; en canvi, l'efecte no sembla ser significatiu en S. nigrum. Fotografies fetes al microscopi electronic posen de manifest que les cobertes de les llavors de S. luteum es veuen mes afectades per la ingestio per ocells que les de S. nigrum o que les no ingerides (controls). Aquesta abrasio de la paret de la llavor es la que afavoreix la germinacio de les llavors, augmentant la seva permeabilitat a l'aigua i als gasos. Es conclou que mentre que S. nigrum es afectat pels ocells unicament en la seva dispersio, S. luteurn es tambe influenciat per aquests en la seva germinacio. EnglishThis paper examines the effect that the passage of seeds of Solanum luteum and S. nigrum through the digestive system of Sardinian Warblers (Sylvia melanocephala) and Blackbirds (Turdus merula) has on their germination. The results obtained show that the percentage and rate of germinated seeds of S. luteum increase when they have been ingested by either Sylvia melanocephala or Turdus merula. In contrast, no significant effect was found for S. nigrum. Scanning electron micrographs of the seed coats showed that S. luteum was more affected than S. nigrum and than controls (uningested seeds). The abrasion of the seed coat is what allows an increase in permeability to water and gas, thus enhancing germination. It is concluded that whereas S. nigrum is only affected by birds in its seed dispersal, S. luteum is also affected in its germination." @default.
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- W2284635569 date "1999-01-01" @default.
- W2284635569 modified "2023-09-23" @default.
- W2284635569 title "Efectes de la ingestió per ocells sobre la germinació i la dispersió de dues espècies pròximes de Solanum" @default.
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