Allelopathic potential in the laurel forest of Tenerife, Canary Islands
Laboratory and field experiments were conducted in order to assess the allelopathic potential of a laurel forest of Tenerife, Canary Islands. Decomposing litter and leaching from leaves or other plant parts can have inhibitory effects on seed germination and seedling growth. Two native species to th...
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| Formato: | Otro |
| Lenguaje: | sueco Inglés |
| Publicado: |
2006
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| Acceso en línea: | https://stud.epsilon.slu.se/12870/ |
| _version_ | 1855572145866801152 |
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| author | Runnquist, Miamaria |
| author_browse | Runnquist, Miamaria |
| author_facet | Runnquist, Miamaria |
| author_sort | Runnquist, Miamaria |
| collection | Epsilon Archive for Student Projects |
| description | Laboratory and field experiments were conducted in order to assess the allelopathic potential of a laurel forest of Tenerife, Canary Islands. Decomposing litter and leaching from leaves or other plant parts can have inhibitory effects on seed germination and seedling growth. Two native species to the laurel forest were selected to test for allelopathic effects, Laurus azorica and Persea indica, since results from former studies have shown toxicity against other organisms. The target species were two annual bioassay species, Lepidium sativum L. (cress) and Lactuca sativa L. (lettuce). Both leaves from L. azorica and fruits of P. indica were shown to negatively affect germination and seedling development in Petri dishes as well as in sowing experiments. Samples from the forest floor were also influencing seedling growth of the bioassay species, although somewhat contradictory, in the laboratory experiments. From the field experiments another factor possibly influencing seedling survival was detected, the slug Plutonia lamarcki. These two factors, allelopathy and slug predation, could together have great influence in shaping structure and composition of this forest type. |
| format | Otro |
| id | RepoSLU12870 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2006 |
| publishDateSort | 2006 |
| record_format | eprints |
| spelling | RepoSLU128702017-11-22T12:15:54Z https://stud.epsilon.slu.se/12870/ Allelopathic potential in the laurel forest of Tenerife, Canary Islands Runnquist, Miamaria Plant ecology Laboratory and field experiments were conducted in order to assess the allelopathic potential of a laurel forest of Tenerife, Canary Islands. Decomposing litter and leaching from leaves or other plant parts can have inhibitory effects on seed germination and seedling growth. Two native species to the laurel forest were selected to test for allelopathic effects, Laurus azorica and Persea indica, since results from former studies have shown toxicity against other organisms. The target species were two annual bioassay species, Lepidium sativum L. (cress) and Lactuca sativa L. (lettuce). Both leaves from L. azorica and fruits of P. indica were shown to negatively affect germination and seedling development in Petri dishes as well as in sowing experiments. Samples from the forest floor were also influencing seedling growth of the bioassay species, although somewhat contradictory, in the laboratory experiments. From the field experiments another factor possibly influencing seedling survival was detected, the slug Plutonia lamarcki. These two factors, allelopathy and slug predation, could together have great influence in shaping structure and composition of this forest type. Laboratorie- och fältexperiments utfördes i syfte att studera allelopatisk potential i en lagerskog på Tenerife, Kanarieöarna. Nedbrytning av förna och utsöndring från bladverk, blad och/eller andra växtdelar kan ha hämmande inverkan på grodd och unga plantors tillväxt. Två inhemska arter från lagerskogen valdes ut för att testas för allelopatiska effekter, Laurus azorica (atlantlager) och Persea indica (madeiramahogny), eftersom resultat från tidigare studier visat toxicitet mot andra organismer. Två annuella försöksarter användes i experimenten, Lepidium sativum L. (kryddkrassing) och Lactuca sativa L. (sallat. Blad från L. azorica och frukter från P. indica visade sig ha negativa effekter på groning och utveckling av groddplantor både i Petriskålar och i såddexperiment. Jordprover från lagerskogen påverkade också tillväxt av groddplantor, även om resultaten var något tvetydiga, i laboratorieexperimenten. Från fältförsöken uppdagades ytterligare en faktor som kan ha påverkan på groddplantors överlevnad, snigeln Plutonia lamarcki. Dessa två faktorer, allelopati och snigelpredation, kan tillsammans ha stor inverkan på struktur och sammansättning i den här typen av skog. 2006-11-24 Other NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/12870/1/runnquist_m_171122.pdf Runnquist, Miamaria, 2005. Allelopathic potential in the laurel forest of Tenerife, Canary Islands. UNSPECIFIED, Uppsala. Uppsala: (LTJ, LTV) > Dept. of Plant Protection Biology <https://stud.epsilon.slu.se/view/divisions/4809.html> urn:nbn:se:slu:epsilon-s-9046 eng |
| spellingShingle | Plant ecology Runnquist, Miamaria Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title | Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title_full | Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title_fullStr | Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title_full_unstemmed | Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title_short | Allelopathic potential in the laurel forest of Tenerife, Canary Islands |
| title_sort | allelopathic potential in the laurel forest of tenerife, canary islands |
| topic | Plant ecology |
| url | https://stud.epsilon.slu.se/12870/ https://stud.epsilon.slu.se/12870/ |