Please use this identifier to cite or link to this item: https://hdl.handle.net/11000/29523

Patrones de germinación de especies halófitas coexistentes a lo largo de un gradiente de salinidad en el semiárido mediterráneo.


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Title:
Patrones de germinación de especies halófitas coexistentes a lo largo de un gradiente de salinidad en el semiárido mediterráneo.
Authors:
Robledano Torres, José
Tutor:
Moreno, Joaquín  
Editor:
Universidad Miguel Hernández de Elche
Department:
Departamentos de la UMH::Biología Aplicada
Issue Date:
2023-06
URI:
https://hdl.handle.net/11000/29523
Abstract:
Los ambientes salinos son hábitats caracterizados por suelos altamente salinos en los que los factores de salinidad se consideran impulsores de la estructura de la comunidad vegetal. Como consecuencia de estas condiciones estresantes, las plantas halófitas aparecen distribuidas en una zonación bien...  Ver más
Saline environments are habitats characterised by highly saline soils in which salinity factors are considered as drivers of plant community structure. As consequence of these stressful conditions, halophytes are distributed in a well-marked zonation within Mediterranean saltmarshes along the salinity gradient. In this framework, the aim of this study is to assess the effect of salinity on seed germination of four coexisting halophyte species, obtaining results that explain local assemblage processes in the semi-arid Mediterranean. Seeds were collected in Agua Amarga Saltmarsh in Alicante and were germinated during 30 days under controlled conditions at different salinity treatments (0%, 1%, 2%, 4% y 6%). After this experiment, non-germinated seeds were transferred to dishes with distilled water. Final germination percentage (FGP) and mean time-to-germinate (MTG) were calculated for both experiments. Overall, the results showed the germination and its rate of speed decreases when the salinity increases. Besides, after exposing the seeds to distilled water after the saline stress, successful germination was achieved, observing latency or dormancy seed in stressful conditions. These findings provide further information to existing studies on the germination responses of halophytes to salinity stress. Hence, these results are a useful data that expand the current knowledge on the ecological patterns of halophytes and help to understand the local assembly rules.
Keywords/Subjects:
Germinación
Halófitos
Recuperación
Salinidad
Saladares
Germination
Halophytes
Recovery
Salinity
Saltmarshes
Knowledge area:
CDU: Ciencias puras y naturales: Botánica
Type of document:
info:eu-repo/semantics/bachelorThesis
Access rights:
info:eu-repo/semantics/openAccess
Appears in Collections:
TFG - Ciencias Ambientales



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