Index Catalog // ScholarsArchive@OSU

The influence of various surfactant-herbicide ratios in three volumes of water on the toxicity of dalapon, paraquat, and terbacil to winter oats (Avena sativa L.)

Creator:: Migchelbrink, Kenneth John
Abstract:: Several studies were conducted to determine if a more consistent predictor of phytotoxicity to winter oats could be obtained with a surfactant-herbicide ratio or a per-unit-volume concentration of surfactant, independent of volume. The herbicides tested were 2,2-dichloropropionic acid (dalapon), 1,1'-dimethyl-4, 4'-bipyridinium (paraquat), and 3-tert-butyl-5-chloro-6-methyluracil (terbacil) with the nonionic surfactant X-77...
Resource Type:: Masters Thesis
Full Text:: evaluate this manu- script will always be remembered. Dr. Orvid Lee and Dr. Clifford Smith For serving

The influence of light, temperature and humidity on the herbicidal activity of bromoxynil (3,5-dibromo-4-hydroxybenzo-nitrile) on Amsinckia intermedia

Creator:: Zimmerman, Martin (Martin Joseph)
Abstract:: The use of bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) to control broadleaf weeds in cereal crops has become widespread. This herbicide has not always performed satisfactorily for reasons which were not clearly evident. The effects of temperature, light and humidity on the herbicidal activity of bromoxynil on coast fiddleneck, Amsinckia intermedia, were studied. Fiddleneck...
Resource Type:: Masters Thesis
Full Text:: Smith for their review of the manuscript and participation on my committee. To Dr. Roman Romanowski

Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

Creator:: Kirkland, Kenneth
Abstract:: Addition of the methylcarbamate compounds p-chlorophenyl N-methylcarbamate (PPG-124) and 1-naphthyl N-methylcarbamate (carbaryl) to various herbicides has resulted in reduced rates of degradation. Carbaryl affects the degradation of certain herbicides in both plants and soils while PPG-124 has only been demonstrated to affect degradation in soils. Both these materials are effective...
Resource Type:: Masters Thesis
Full Text:: METHYLCARBAMATES ON THE TOXICITY OF ISOPROPYL M-CHLOROCARBANI LATE (CHLORPROPHAM) TO SAFFLOWER (CARTHAMUS

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:: . William W. Chilcote, W. R. Furtick, and Frank H. Smith for serving as members of the graduate committee

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

Creator:: Burr, Ronald J.
Abstract:: Previous research has shown that activated carbon is effective in inactivating certain herbicides applied as a preemergence treatment. Studies were conducted in the greenhouse to determine the influence of various factors on the ability of activated carbon to inactivate herbicides applied after carbon application. Field studies were conducted to determine...
Resource Type:: Masters Thesis
Full Text:: . My appreciation is expressed to Dr. Malcolm E. Corden for his critical review and suggestions for

Sorption and phytotoxicity of triazine herbicides in neutral and calcareous soils

Creator:: Colbert, Floyd Oral
Resource Type:: Dissertation
Full Text:: , Department of Farm Crops, Dr. Virgil H. Freed, Department of Agricultural Chemistry, Dr. Frank H. Smith

Field bindweed : a growth stage indexing system and its relation to control with glyphosate

Creator:: Whitesides, Ralph E.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Ralph E. Whitesides for the

Foliar vs. root uptake of the herbicide Hoe 23408 in Italian ryegrass and wild oats

Creator:: West, Geralyn Marie
Abstract:: HOE 23408 [methyl 2-[ 4-( 2, 4- dichlorophenoxy )phenoxy]propanoate] is a herbicide used to selectively-control Italian ryegrass (Lolium muitiflorum Lam.) and wild oats (Avena fatua L.) in wheat. The objective of this research was to compare the relative importance of foliar and root uptake of the herbicide in these two...
Resource Type:: Masters Thesis
Full Text:: (3.5% 0.M.), Newberg sandy loam (1.7% O.M.), and silica sand (0.5% O.M.). Injury from a 1.12 kg/ha

Control of volunteer legumes during establishment of legume seed crops with activated carbon bands and non-selective herbicides

Creator:: Rolston, M. Philip
Resource Type:: Dissertation
Full Text:: dipropylthiocarbamate) seeded with alfalfa at 10 mg/m of row controlled volunteer perennial ryegrass (Lo lium perenne L

Postemergence herbicides and take-all disease in winter wheat : alterations in the incidence and severity of disease and crop growth

Creator:: Geddens, Ray M.
Abstract:: Eight postemergence herbicides were evaluated to determine their influence on the incidence and severity of take-all disease caused by the fungus Gaeumannomyces graminis var. tritici in winter wheat. Mecoprop ((+)-2-(4-chloro-2-methylphenoxy)propanoic acid), difenzoquat (1,2- dimethyl- 3,5- diphenyl -1H- pyrazolium), dinoseb amine (amine salt of 2-(1-methylpropy1)-4,6-dinitrophenol), and diclofopmethyl (methyl ester of (+)-2-[4-(2,4-dichlorophenoxy)...
Resource Type:: Dissertation
Full Text:: OF Ray M. Geddens for the degree of Doctor of Philosophy in Crop Science and Botany/Plant Pathology

ScholarsArchive@OSU

The influence of various surfactant-herbicide ratios in three volumes of water on the toxicity of dalapon, paraquat, and terbacil to winter oats (Avena sativa L.)

The influence of light, temperature and humidity on the herbicidal activity of bromoxynil (3,5-dibromo-4-hydroxybenzo-nitrile) on Amsinckia intermedia

Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

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

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

Sorption and phytotoxicity of triazine herbicides in neutral and calcareous soils

Field bindweed : a growth stage indexing system and its relation to control with glyphosate

Foliar vs. root uptake of the herbicide Hoe 23408 in Italian ryegrass and wild oats

Control of volunteer legumes during establishment of legume seed crops with activated carbon bands and non-selective herbicides

Postemergence herbicides and take-all disease in winter wheat : alterations in the incidence and severity of disease and crop growth

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