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The effects of SO2 on the final growth of Medicago truncatula

Murray, F. and Wilson, S. (1991) The effects of SO2 on the final growth of Medicago truncatula. Environmental and Experimental Botany, 31 (3). pp. 319-325.

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Open-top fumigation chambers were used to study the effects of SO2 exposure on the barrel medic (Medicago truncatula cv. Paraggio). Plants were exposed for 4 hr/day, 7 days/week for 72 days to mean SO2 concentrations of 0.004, 0.041, 0.120, 0.255 or 0.515 μl/l. Final growth response curves are presented for shoot, leaf and stem dry weights, shoot length and numbers of leaves, flowers and branches. Increased SO2 concentrations caused a proportionate decrease in growth parameters, but a proportionate increase in foliar sulfur concentration. Medics growing in mixed pasture in newly industrializing areas with moderate or high SO2 concentrations may require more intensive management intervention.

Item Type: Journal Article
Murdoch Affiliation(s): School of Biological and Environmental Sciences
Publisher: Elsevier
Copyright: © 1991 Elsevier B.V.
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