Effects of soil-added Cl on growth ofAndropogon scoparius and possible implications for heavy metal research
Soil additions of Cl−, as NaCl, over the 0 to 400 ppm Cl− range did not affect germination forAndropogon scoparius. Height and top dry weight were significantly reduced by 300 ppm soil added Cl−. Although not conclusive, these results did indicate that growth and germination effects reported for Cd++, added as CdCl2, are probably due to Cd++ rather than to a Cl− or salt effect. Reported Pb++ effects, where Pb++ is added as PbCl2, however may be at least partially due to a Cl− or salt effect.
Key wordsAndropogon scoparius Cadmium Chloride Dry weight Germination Heavy metals Lead Little bluestem Salt
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