Persistent Stimulation Of Co2 Assimilation And Stomatal Conductance By Summer Ozone Fumigation In Norway Spruce

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dc.contributor.author Eamus, Derek en_US
dc.contributor.author Barnes, Jeremy en_US
dc.contributor.author Mortensen, L en_US
dc.contributor.author Ropoulsen, H en_US
dc.contributor.author Davison, A en_US
dc.contributor.editor en_US
dc.date.accessioned 2011-02-07T06:20:32Z
dc.date.available 2011-02-07T06:20:32Z
dc.date.issued 1990 en_US
dc.identifier 2006012334 en_US
dc.identifier.citation Eamus Derek et al. 1990, 'Persistent Stimulation Of Co2 Assimilation And Stomatal Conductance By Summer Ozone Fumigation In Norway Spruce', Elsevier Sci Ltd, vol. 63, no. 4, pp. 365-379. en_US
dc.identifier.issn 0269-7491 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/13298
dc.description.abstract CO2 assimilation rate, stomatal conductance and chlorophyll content of current and previous years' needles of Norway spruce were measured in May 1988, 205 days after the cessation of ozone fumigation during the summer of 1987. Rates of assimilation were consistently higher for both needle year age classes for ozone fumigated trees in comparison to control trees, although only statistically significant for part of the day for current year's needles. A 26% and 48% stimulation, overall, in mean daily rates of assimilation for current and previous years' needles of ozone fumigated trees was observed. This was due to an enhanced apparent quantum yield and light saturated rate of assimilation of ozone fumigated trees. The temperature response regression of assimilation versus temperature was also greater, such that at any given temperature, assimilation was higher for ozone treated trees than control trees. Stomatal conductance was greater for ozone fumigated trees than the controls, but this was only marginally statistically significant. Moreover, there was a consistent increase in chlorophyll content in both year classes in ozone-treated trees. These results are discussed in relation to a possible long term effect of ozone fumigation upon the processes of conifer winter hardening and spring de-hardening. en_US
dc.language en_US
dc.publisher Elsevier Sci Ltd en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/0269-7491(90)90141-X en_US
dc.title Persistent Stimulation Of Co2 Assimilation And Stomatal Conductance By Summer Ozone Fumigation In Norway Spruce en_US
dc.parent Environmental Pollution en_US
dc.journal.volume 63 en_US
dc.journal.number 4 en_US
dc.publocation Oxford en_US
dc.identifier.startpage 365 en_US
dc.identifier.endpage 379 en_US
dc.cauo.name SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 000006 en_US
dc.personcode 0000021863 en_US
dc.personcode 0000033271 en_US
dc.personcode 0000033270 en_US
dc.personcode 0000033269 en_US
dc.percentage 100 en_US
dc.classification.name Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords NA en_US


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