Respuesta germinativa y tolerancia al estrés salino en comunidades dunares

This thesis focuses on the study of 15 species of dune ecosystems of the Gulf of Valencia, in front of a sweep of temperatures and saline concentrations. The following hypothesis is based on the following work: the germinative response is a determining factor in the distribution of plant species in...

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Detalles Bibliográficos
Autor principal: López Valiente, Carmen
Otros Autores: Soriano Guarinós, Pilar (Universitat de València)
Formato: text (thesis)
Lenguaje:spa
Publicado: Universitat de València (España) 2011
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Acceso en línea:https://dialnet.unirioja.es/servlet/oaites?codigo=109293
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Descripción
Sumario:This thesis focuses on the study of 15 species of dune ecosystems of the Gulf of Valencia, in front of a sweep of temperatures and saline concentrations. The following hypothesis is based on the following work: the germinative response is a determining factor in the distribution of plant species in the dune ecosystems. In the study the results were analyzed before 9 conditions of temperature sweep and 5 saline concentrations. A new rate of germination rate is defined, and an index weighing the germination rate and percentage. In addition, four germinative parameters were studied: base temperature, base osmotic potential, thermal time and hydrotime. A multivariate analysis is performed through Principal Component Analysis and Factor Analysis in order to search for possible groupings between species. As a final result it is shown that the germinative variables related to the constant temperatures and the low salinity are those that reflect the distribution or zonation of the species.