Cadmium uptake by plants
Absorption of /sup 115m/Cd by soybean (Gylcine max l.) plants via foliar and root systems and translocation into the seed was determined. The uptake of /sup 115m/Cd by soybeans via the root system was more efficient than that of the foliar placement. Growth and Cd concentrations of soybean and wheat (Triticum aestivum l.) tops were influenced by soil-applied Cd. In both crops, the Cd concentration of plant tops increased while yield decreased with increasing levels of applied Cd. Cadmium toxicitiy began to occur in both crops at the lowest level of soil applied Cd (2.5 ppM). With soybean plants, Cd toxicity symptoms resembled fe chlorosis. For wheat plants there were no visual symptoms other than the studied growth. The relative concentration of Cd found in several vegetable crops varied depending on the plant species. The relative Cd concentration in descending order for various vegetables was lettuce (Lactuca sativa l.) > radish top (Raphanus sativus l.) > celery stalk (Apium graveolens l.) > celery leaves greater than or equal to green pepper (Capsicum frutescens l.) > radish roots.
- OSTI ID:
- 5474192
- Journal Information:
- J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 2:1; ISSN JEVQA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ABSORPTION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CADMIUM
CADMIUM 115
CADMIUM ISOTOPES
CEREALS
DAYS LIVING RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
FOLIAR UPTAKE
FOOD
GLYCINE HISPIDA
GRAMINEAE
GRASS
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
LEGUMINOSAE
LETTUCE
METALS
NUCLEI
PLANTS
RADIOISOTOPES
RADISHES
ROOT ABSORPTION
TOXICITY
TRACER TECHNIQUES
TRANSLOCATION
UPTAKE
VEGETABLES
WHEAT