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Open Access Green as soon as Postprint is submitted to ZB.
Investigations on the photosynthetic system of spruce affected by forest decline and ozone fumigation in closed chambers.
Environ. Pollut. 79, 31-35 (1993)
Investigations using chlorophyll fluorescence induction kinetics provide the parameters Rfd, L and Ap to characterize different specifications of the photosynthetic system (PS). The application of ozone, with concentrations between 100 μg m-3 and 2000 μg m-3 to spruce in closed chambers yields a reduction of Rfd between 6% and 23% for the current year's needles, which indicates a reduced potential photosynthetic capacity. Further measurements on the current year's needles of spruce of the damage classes SO/S1, S2 and S3 show also a reduction of Rfd of between 7% and 14% in 2 successive years. In addition, the parameter L increases for damaged trees by between 11% and 49%, indicating a change of the chlorophyll content and of the internal energy distribution between PSI and PSII. As no effect of L can be observed with ozone fumigation, it is concluded that the change of some specifications of the PS can be simulated well by ozone fumigation (e.g. Rfd) while other specifications cannot (e.g. L).
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Publication type
Article: Journal article
Document type
Scientific Article
ISSN (print) / ISBN
0269-7491
e-ISSN
1873-6424
Journal
Environmental Pollution
Quellenangaben
Volume: 79,
Issue: 1,
Pages: 31-35
Publisher
Elsevier
Reviewing status
Peer reviewed
Institute(s)
Department for Medical Information Systems (MEDIS)