Some effects of copper, cobalt, cadmium, zinc, nickel, and chromium on growth and mineral element concentration in chrysanthemum
Different levels of Cu, Co, Cd, Zn, Ni, and Cr (10/sup -6/, 10/sup -5/, and 10/sup -4/M) were studied in a glasshouse to evaluate effects on the yield and interactions among heavy metals in chrysanthemum (Chrysanthemum morifolium Ramat. cv. Bright Golden Anne). A 70 percent growth reduction was observed at the highest level (10/sup -4/M) of Cd, Cu, and Cr. The same level of Co, Ni, and Zn depressed growth 45, 45, and 21 percent, respectively. Added Cd in solution had the greatest effect on growth depression at ,,10/sup -5/M. Copper, Co, Cd, Zn, Ni, and Cr concentrations in leaves, stems, and roots were increased with their rate of application in nutrient solution. Most Cu, Co, Cd, Ni, and Cr were associated with roots, followed by leaves and stems. No gradient from root to shoot was observed with Zn. Root to stem metal ratios were in the following order: Cr greater than Co greater than Cd greater than Ni greater than Cu greater than Zn. Cadmium decreased Mn concentration in leaves, stems, and roots, and increased Zn concentration in leaves. Other interactions were also noted.
- Research Organization:
- Univ. of California, Los Angeles
- OSTI ID:
- 7212799
- Journal Information:
- J. Am. Soc. Hortic. Sci.; (United States), Vol. 101:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CADMIUM
BIOLOGICAL EFFECTS
CHROMIUM
COBALT
COPPER
MINERALS
METABOLISM
NICKEL
PLANTS
GROWTH
ZINC
BIOMASS
ELEMENTS
ENERGY SOURCES
METALS
RENEWABLE ENERGY SOURCES
TRANSITION ELEMENTS
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)