Heavy metal interaction for Andropogon scoparius and Rudbeckia hirta grown on soil from urban and rural sites with heavy metals additions

Journal Article · Mon Oct 01 00:00:00 EDT 1979 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1979.00472425000800040001x· OSTI ID:5522571

Miles, L J; Parker, G R

Little bluestem (Andropogon scoparius) and black-eyed Susan (Rudbeckia hirta) were grown in two soils with all combinations of Cd, Zn, Pb, and Cu at two levels each for 12 weeks. Germination and establishment were completely retarded by the addition of 1000 ..mu..g/g Zn as ZnCl/sub 2/, which was due to a salt effect. Neither Cd nor Cu additions affected germination. A slight decrease in germination was noted for Pb additions of 900 ..mu..g/g which may also be associated with a salt effect. Cadmium at 10- and 20-..mu..g/g addition rates did not affect top or root dry weight. Lead and Cu additions reduced shoot and root dry weight yields of Andropogon scoparius, root weights being more severely affected than shoot weights. Metal additions to the urban site soil did not reduce yields to the extent they did on the rural site soil. However, yields on the urban site soil control treatment were lower compared to those for the rural site control treatment. DTPA extraction levels of heavy metals were not well correlated to plant concentrations for comparisons between the two soils. It was concluded that DTPA soil extraction may not be acceptable for metal availability comparisons among soils of differing pH. Circumstantial evidence was found for both synergistic and antagonistic effects among the heavy metals. These were of a low level and no consistent response could be determined over species or soils.

• Research Organization: Purdue Univ., West Lafayette, IN
• OSTI ID: 5522571
• Journal Information: J. Environ. Qual.; (United States), Vol. 8:4
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CADMIUM
BIOLOGICAL EFFECTS
COPPER
LEAD
ZINC
ADDITIVES
COMPARATIVE EVALUATIONS
DATA COMPILATION
DTPA
ECOLOGICAL CONCENTRATION
PH VALUE
PLANT GROWTH
PLANTS
RURAL AREAS
SOLVENT EXTRACTION
SYNERGISM
TABLES
URBAN AREAS
ZINC CHLORIDES
AMINO ACIDS
CARBOXYLIC ACIDS
CHELATING AGENTS
CHLORIDES
CHLORINE COMPOUNDS
DATA
DATA FORMS
DRUGS
ELEMENTS
EXTRACTION
GROWTH
HALIDES
HALOGEN COMPOUNDS
INFORMATION
METALS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
RADIOPROTECTIVE SUBSTANCES
RESPONSE MODIFYING FACTORS
SEPARATION PROCESSES
TRANSITION ELEMENTS
ZINC COMPOUNDS
ZINC HALIDES
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)