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Influence of SO2 and NO2 Exposure on Glutathione, Superoxide Dismutase and Glutathione Reductase Activities in Scots Pine Needles

by WINGSLE, GUNNAR, HÄLLGREN, JAN-ERIK
Published in Journal of Experimental Botany (1993)

Cold acclimation of Pinus contorta and Pinus sylvestris assessed by chlorophyll fluorescence

by Lindgren, Katarina, Hällgren, Jan-Erik
Published in Tree Physiology (1993)

Effects of frost on shaded and exposed spruce and pine seedlings planted in the field

by Lundmark, Tomas, Hällgren, Jan-Erik
Published in Canadian Journal of Forest Research (1987)