Assimilation And Stomatal Conductance Responses Of Red Spruce To Midwinter Frosts And The Constituent Ions Of Acid Mist

Abstract

Red spruce (Picea rubens Sarg.) seedlings growing outside in open-top chambers were sprayed twice weekly with artificial mists at either pH 2.5 or 5.6, for five months during the 1988 growing season. The mists contained one of the following: (water, pH 5