Sort By:
  1. Bracken fern inhibition of conifer regeneration in northern Idaho /
    By: Ferguson, Dennis E. - Boyd, Raymond J. - Intermountain Research Station (Ogden, Utah)
    Publication info: [Ogden, Utah] :U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station,1988.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bracken fern  Competition (Biology)  Conifers  Idaho  Phytotoxins  Seeds  Viability  
    View Book
  2. Phytotoxicology background sampling in the city of Windsor: 1972-1986 / report prepared by R. G. Pearson.
    By: Pearson, R. G. - Ontario.
    Publication info: [Toronto] :Phytotoxicology Section, Air Resources Branch,1990.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Ontario  Phytotoxins  Plant diseases  Soils  Trace element content  Windsor  
    View Book
  3. Phytotoxicology survey report : UCAR Carbon Canada Incorporated, Welland, 1992 & 1993 / prepared by: William I. Gizyn.
    By: Gizyn, W. I. - Ontario.
    Publication info: [Toronto] :Standards Development Branch, Phytotoxicology Section, Ontario Ministry of Environment and Energy,1994.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Environmental aspects  Ontario  Phytotoxins  Polycyclic aromatic hydrocarbons  Toxicity testing  UCAR Carbon Canada Incorporated  Welland  
    View Book
  4. Phytotoxicology vegetation assessment survey, Cornwall Island, Ontario, 1993.
    By: Ontario. - Emerson, R. N.
    Publication info: Toronto :Ministry of Environment and Energy,1994.
    Contributed by: Ontario Ministry of the Environment (archive.org)
    Subjects: Cornwall Island  Fluorides  Ontario  Phytotoxins  Toxicity testing  Toxicology  Vegetation surveys  
    View Book
  5. A search for phytotoxins influencing germination and early growth of ponderosa pine /
    By: Kelsey, Rick G. - Harrington, Michael G. - Intermountain Forest and Range Experiment Station (Ogden, Utah)
    Publication info: Ogden, Utah :Intermountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,1979.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Growth  Phytotoxins  Ponderosa pine  Seedlings  
    View Book