The impact of various factors on seed production in a
Douglas-fir (Pseudotsuga menziesii) seed orchard in
western Oregon was examined by monitoring the fate of
seeds in thirty cones, stratified into three crown levels,
on each of ten trees during the 1984 growing season.
Cones were examined monthly between April...
Tropospheric ozone is a pollutant which has detrimental effects on crop yields. The level of ambient ozone can be reduced by environmental policy changes and enforcement. The purpose of this study was to estimate the welfare effects of such changes in ambient ozone using recently available plant response data and...
Carbonyl sulfide (COS) has been investigated as a rapid-equilibrium inhibitor of CO oxidation
by the CO dehydrogenase purified from Rhodospirillum rubrum. The kinetic evidence suggests that the
inhibition by COS is largely competitive versus CO (Ki = 2.3 pM) and uncompetitive versus methylviologen
as electron acceptor (Ki = 15.8 pM)....