Effects of roadside deicer salts and ozone on red maple progenies

Abstract

Significant differences were found among three red maple progenies in their height growth response to salt, to ozone and to salt and ozone combined. Seedlings from a Maine seed source showed the lowest degree of foliar injury in response to all treatments and were also least suppressed in their total height growth. Demonstrated genetic tolerance or susceptibility of red maple to ozone and salt supports the validity of selection programmes for trees capable of withstanding pollution-related stresses.