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INTERACTION BETWEEN OZONE AND COLD SENSITIVITY IN NORWAY SPRUCE: A FACTOR CONTRIBUTING TO THE FOREST DECLINE IN CENTRAL EUROPE?
Author(s) -
BROWN K. A.,
ROBERTS T. M.,
BLANK L. W.
Publication year - 1987
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1987.tb00118.x
Subject(s) - picea abies , karst , frost (temperature) , fumigation , cold sensitivity , altitude (triangle) , forestry , ozone , horticulture , biology , botany , geography , meteorology , archaeology , biochemistry , geometry , mathematics , gene , mutant
S ummary Three‐year‐old clonal saplings of Picea abies L. Karst. were fumigated for 60 d during the summer of 1985 with four different levels of O 3 . Visible injury (in the form of severe, uniform brown necrosis and shedding of affected needles) occurred after a frost in November on the older needles of three of the clones which had received over 200 μg m −3 of O 3 during the summer, 47 d previously. No visible injury occurred during the fumigation period or on the current (1985) year needles. It is suggested that the results provide preliminary evidence for an enhancement of frost sensitivity by O 3 which may be significant in the current wave of forest decline affecting high‐altitude forests in central Europe.