Growth response to ozone of annual species from Mediterranean pastures

Gimeno, Benjamín and Bermejo, V. and Sanz, J. and Torre Llorente, Daniel de la and Elvira, S. (2004). Growth response to ozone of annual species from Mediterranean pastures. "Environmental Pollution", v. 132 (n. 2); pp. 297-306. ISSN 0269-7491. https://doi.org/10.1016/j.envpol.2004.04.022.

Description

Title: Growth response to ozone of annual species from Mediterranean pastures
Author/s:
  • Gimeno, Benjamín
  • Bermejo, V.
  • Sanz, J.
  • Torre Llorente, Daniel de la
  • Elvira, S.
Item Type: Article
Título de Revista/Publicación: Environmental Pollution
Date: November 2004
Volume: 132
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biología Vegetal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Ozone (O3) phytotoxicity has been reported on a wide range of plant species. However, scarce information has been provided regarding the sensitivity of semi-natural grassland species, especially those from dehesa Mediterranean grasslands, in spite of their great biological diversity and the high O3 levels recorded in the region. A screening study was carried out in open-top chambers (OTCs) to assess the O3-sensitivity of representative therophytes of these ecosystems based on the response of selected growth-related parameters. Three O3 treatments and 3 OTCs per treatment were used. Legume species were very sensitive to O3, because 78% of the tested species showed detrimental effects on their total biomass relative growth rate (RGR) following their exposure to O3. The Trifolium genus was particularly sensitive showing O3-induced adverse effects on most of the assessed parameters. Gramineae plants were less sensitive than Leguminosae species because detrimental effects on total biomass RGR were only observed in 14% of the assessed species. No relationship was found between relative growth rates when growing in clean air and O3 susceptibility. The implications of these effects on the performance of dehesa acidic grasslands and on the definition of ozone critical levels for the protection of semi-natural vegetation are discussed.

More information

Item ID: 11417
DC Identifier: http://oa.upm.es/11417/
OAI Identifier: oai:oa.upm.es:11417
DOI: 10.1016/j.envpol.2004.04.022
Deposited by: Memoria Investigacion
Deposited on: 26 Jul 2012 07:21
Last Modified: 20 Apr 2016 19:29
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