Search Constraints

Start Over
Filtering by: Conference section Pest of Turf and Ornamentals Remove constraint Conference section: Pest of Turf and Ornamentals Committee Member Chilcote, William W. Remove constraint Committee Member: Chilcote, William W. Language English [eng] Remove constraint Language: English [eng]

Search Results

  • The influence of magnesium on the toxicity of atrazine

    Creator:
    Brenchley, Ronald Glenn
    Abstract:
    Atrazine is an asymmetrical s-triazine herbicide used pre- and post emergence for weed control in many crops. Triazine herbicides have been used in the Pacific-Northwest for weed control in orchard crops. Under certain conditions where trees were grown in nutrient deficient areas, it was noted that toxic symptoms due to...
    Resource Type:
    Masters Thesis
    Full Text:
    significant effect in reducing the toxicity of herbicides. Magnesium and atrazine were chosen to study this

  • Factors influencing the herbicidal activity of dimethyl 2,3,5,6-tetrachloroterephthalate

    Creator:
    McKinley, James Raleigh
    Abstract:
    Studies were conducted to determine the site of DCPA toxicity on annual ryegrass. This was done by means of a technique which used pyrex tubing and a vapor barrier to separate exposure of coleoptile and roots of emerging grass seedlings to various concentrations of DCPA. Coleoptiles that emerged through treated...
    Resource Type:
    Masters Thesis
    Full Text:
    by means of a technique which used pyrex tubing and a vapor barrier to separate exposure of cole

  • Influence of weed density on efficacy of two soil-applied herbicides

    Creator:
    Burrill, L. C.
    Abstract:
    Several studies were conducted to determine the effect of weed density on herbicide efficacy. Diuron [3-(3, 4- dichlorophenyl) -1, 1- dimethylurea] was tested on various densities of Italian ryegrass (Lolium multiflorum Lam. ) under greenhouse and field conditions. Cycloate (S-ethyl N-ethylthiocyclohexanecarbamate) was tested on green foxtail (Setaria viridis (L. )...
    Resource Type:
    Masters Thesis
    Full Text:
    , cotton, citrus, woody ornamentals, wheat, and turf (21). At higher rates most herbicides of this group

  • The response of tomatoes to atrazine as affected by magnesium and photoperiod

    Creator:
    Brenchley, Ronald Glenn
    Abstract:
    Studies were conducted to determine the nature of the interaction between atrazine (2-chloro-4-ethylamino-6-isopropylaminos- triazine) and magnesium on tomatoes. This interaction was studied under two light regimes: continuous light and a 12-hour photoperiod. Tomato plants were grown in sand cultures at three levels of magnesium fertilization. Four weeks after planting, atrazine...
    Resource Type:
    Dissertation
    Full Text:
    magnesium and photoperiod AN ABSTRACT OF THE THESIS OF RONALD GLENN BRENCHLEY for the PH. D. (Name) in