EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Ozone-sensitivity of Scots pine and Norway spruce from northern and local origin to long-term open-field fumigation in central Finland


Environmental & Experimental Botany 36(2): 209-227
Ozone-sensitivity of Scots pine and Norway spruce from northern and local origin to long-term open-field fumigation in central Finland
Long-term experiments are needed to study the effects of realistically low ozone concentrations. In our three-season-long experiment, seedlings of Scots pine and Nor-way spruce were exposed to slightly elevated levels of ozone in an open-field system in central Finland. Two provenances (one local and one from northern Finland) were used. The responses included increased needle chlorosis and changes in chlorophyll a and b, fatty acid ratios, secondary metabolites and ultrastructure. However, responses were rather mild and often had a slightly different pattern in different provenances, species and year needle classes. The fact that the ozone-induced effects were rare in the present study suggests that (i) Scots pine and Norway spruce are not very sensitive to slightly elevated levels of ozone or (ii) the observed nitrogen deficiency masked any ozone-induced effects. However, a differential behaviour of the seedlings from the two provenances was observed. It is concluded that the northern provenance specimens might be more ozone sensitive when transplanted to a more southern location with a warmer climate than those of the local provenance.

Accession: 002914291

DOI: 10.1016/0098-8472(96)01001-5

Download PDF Full Text: Ozone-sensitivity of Scots pine and Norway spruce from northern and local origin to long-term open-field fumigation in central Finland



Related references

Growth and reproduction of aphids and levels of free amino acids in Scots pine and Norway spruce in an open-air fumigation with ozone. Global Change Biology 3(2): 139-147, 1997

The effect of sulphur dioxide and ozone on the mycorrhizas of Scots pine and Norway spruce in a field fumigation system. Mycological Research 96(9): 785-791, 1992

The effects of sulphur dioxide and ozone on the mycorrhizas of scots pine and norway spruce in a field fumigation system. Mycological Research 96(9): 785-791, 1992

Needle ultrastructure and starch content in Scots pine and Norway spruce after ozone fumigation. Canadian Journal of Botany 74(1): 67-76, 1996

The effects of SO-2 and O-3 on the foliar nutrition of Scots pine, Norway spruce and Sitka spruce in the Liphook open-air fumigation experiment. Plant Cell & Environment 18(3): 237-245, 1995

The effect of open-air fumigation with SO-2 and O-3 on carbohydrate metabolism in Scots pine and Norway spruce. Plant Cell & Environment 18(3): 277-283, 1995

The effect of open-air fumigation with SO2 and O3 on carbohydrate metabolism in Scots pine (Pinus sylvestris) and Norway spruce (Picea abies). Plant, Cell and Environment 18(3): 277-283, 1995

The effects of air pollution on provenances of Scots pine and Norway spruce in northern Finland. Silva Fennica 12(1): 1-16, 1978

Natural regeneration of Scots pine and Norway spruce close to the timberline in northern Finland. Silva Fennica 40(3): 443-458, 2006

Effects of long-term open-air exposure to fluoride, nitrogen compounds and SO-2 on visible symptoms, pollutant accumulation and ultrastructure of Scots pine and Norway spruce seedlings. Trees (Berlin) 10(3): 157-171, 1996