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OLS Field Name OLS Field Data
Main Title Comparative Toxicity of Six Test Chemicals to Lettuce Using Two Root Elongation Test Methods (Journal Version).
Author Ratsch, H. C. ; Johndro, D. ;
CORP Author Corvallis Environmental Research Lab., OR.
Publisher 1986
Year Published 1986
Report Number EPA/600/J-86/499;
Stock Number PB89-120133
Additional Subjects Herbicides ; Lettuce ; Toxicity ; Plant growth ; Sodium fluorides ; Silver nitrate ; Nitrogen inorganic compounds ; Tests ; Arsenic organic compounds ; Cadmium halides ; Methane arsonic acids ; Fluorides ; Concentration(Composition) ; Reprints ; Lactuca sativa ; Monuron ; Cadmium chloride ; Plant roots ; Urea/N-chlorophenyl-N,N-dimethyl ; MSMA herbicide ; Screening ; D 2-4 herbicide ; Acetic acid/dichlorophenoxy
Library Call Number Additional Info Location Last
NTIS  PB89-120133 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/14/1989
Collation 12p
Abstract Lettuce (Lactuca sativa L., cv buttercrunch) was used to evaluate and compare the results from two different root elongation phytotoxicity test methods with the same six test substances. Seeds were either germinated in the dark on an inclined filter paper substrate with one end immersed in test solution or germinated in 0.1 strength nutrient solution with a 16 hr light period in a glass bulb mixed and aerated with compressed air. Sodium fluoride, monosodium methanearsonate and monuron reduced lettuce root length at similar concentrations for both methods; with cadmium chloride and 2,4-D root inhibition occurred at concentrations approximately one order of magnitude smaller in the solution culture method than in the substrate method. Two orders of magnitude difference were observed between the two methods for silver nitrate. The results indicate that the solution method is at least as sensitive for all the chemicals tested and much more sensitive for some.
Supplementary Notes Pub. in Environmental Monitoring and Assessment, v6 p267-276 1986.
NTIS Title Notes Journal article.
Title Annotations Reprint: Comparative Toxicity of Six Test Chemicals to Lettuce Using Two Root Elongation Test Methods (Journal Version).
Category Codes 57C; 57P
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 901217446
Origin NTIS
Type CAT