Index Catalog // ScholarsArchive@OSU

The soil persistence and crop selectivity of 3, 6-dichloropicolinic acid

Creator:: Olson, David Lloyd
Abstract:: Field studies were conducted in 1973 and 1974 to determine the soil persistence of the herbicide M-3785 (containing 0.5 lb a.e. Dowco 290 + 2.0 lb a.e. 214D/gallon). under cropping situations. Spring barley (Hordeum distichon L. 'Hannchen') was grown at Corvallis, Oregon and winter wheat (Triticum aestivum L. 'Nugaines.') was...
Resource Type:: Masters Thesis
Full Text:: to determine the soil persistence of the herbicide M-3785 (containing 0.5 lb a.e. Dowco 290 + 2.0

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

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Creator:: Fechtig, Allen David
Abstract:: After nearly 20 years of commercial use in orchards without apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy) acetic acid] was reported in 1970 to cause injury to apple and pear trees in Washington. In the early 1970's, there was widespread concern among growers, researchers, and processors in the...
Resource Type:: Dissertation
Full Text:: --2V.4-, 3--- /70- Typed by Gloria M. Foster for Allen David Fechtig ACKNOWLEDGMENT It is with deep

Competitive effects and control of weeds in winter wheat on the Anatolian Plateau, Turkey

Creator:: Tezel, Cengiz
Abstract:: Wheat is the major crop produced on the Anatolian Plateau of Turkey. Annual weeds cause large yields reductions in the wheat crop. Several formulations of 2, 4-D and mixtures of 2, 4-D and 2,4, 5-T are the only materials currently available for use in Turkey on wheat. The objective of...
Resource Type:: Masters Thesis
Full Text:: go to Dr. Arnold P. Appleby and Dr. Homer M. Hepworth who, between them, managed to direct the

Interaction between glyphosate and certain s-triazine herbicides

Creator:: Somabhi, Montien
Abstract:: Investigations were made in the field, greenhouse, growth chamber, and laboratory to: (a) observe the general activity of N- (phosphonomethyl)glycine (glyphosate); (b) determine the extent of its interaction with certain s-triazine herbicides; and (c) find an explanation for such an interaction. Greenhouse and growth chamber studies substantiated other observations that...
Resource Type:: Dissertation
Full Text:: , 4.98x10 -4, 9.95x10-4, and 1.97x10 -3 M glyphosate solutions in which 0. 1% v/v of X-77 surfactant was

Selective control of Cirsium arvense (L.) Scop. in Mentha piperita L. with 3,6-dichloropicolinic acid

Creator:: Whitesides, Ralph E.
Abstract:: A series of field experiments was conducted during 1975 and 1976 to examine peppermint tolerance and Canada, thistle response to Dowco 290 (3, 6- dichloropicolinic acid). Peppermint oil yield and Canada thistle density were considered most important in evaluating experimental results. Peppermint tolerance to Dowco 290 was studied in weed-free...
Resource Type:: Masters Thesis
Full Text:: available for research work according to Haagsma (1975): M-3785 -- contains 2 lbs a. e. (acid equivalent

Reduction in atrazine toxicity to winter wheat by the growth retardant CCC

Creator:: Kirkland, Kenneth
Resource Type:: Dissertation
Full Text:: Concentrations (PPb) (M) 10.8 5 x 10-8 21.6 10-7 43.2 2x 10-7 86.4 4 x 10-7 129.6 6 x 10 -7 The method of

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:: effect of plant density on diuron efficacy under field conditions. Average plant counts /0. 372 sq. m

The herbicide HOE 23408; soil persistence, spring wheat cultivar tolerance, and interaction with broadleaf herbicides

Creator:: Ivackovich, Branislav D.
Abstract:: HOE 23408 [ 4-(2' , 4'-dichlorophenoxy)-phenoxy-u-propionic methylester.1 is a promising new compound for control of wild oats and other grass weeds in small grains. Several factors influencing its use for this purpose were investigated. Greenhouse bioassay studies were conducted in 1975 to determine relative persistence of HOE 23408 in four...
Resource Type:: Masters Thesis
Full Text:: the base of the spikelet. m 0 NCnc 300 W V W 0 2000 6 1.. c 100 0 _o E Z Avena fatua L. 2 3 4 5

The effects of N-1-Naphthylphthalamic acid on growth of yellow nutsedge and its control with N-Phosphonomethyl glycine

Creator:: Paller, Enrique C.
Abstract:: Greenhouse and growth chamber experiments were conducted with the following objectives: (a) to study the effects of N-1-naphthylphthalamic acid (naptalam) on shoot and tuber production, rhizome transformation, and growth of yellow nutsedge (Cyperus esculentus L.) plants; (b) to study the effects of N-phosphonomethyl glycine (glyphosate) on nutsedge plants at different...
Resource Type:: Dissertation
Full Text:: plants were transferred to 900-m1 jars containing 800 ml each of 2.05 x 10-5 M, 4.11 x 10-5 M, and 8.23

ScholarsArchive@OSU

The soil persistence and crop selectivity of 3, 6-dichloropicolinic acid

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

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Competitive effects and control of weeds in winter wheat on the Anatolian Plateau, Turkey

Interaction between glyphosate and certain s-triazine herbicides

Selective control of Cirsium arvense (L.) Scop. in Mentha piperita L. with 3,6-dichloropicolinic acid

Reduction in atrazine toxicity to winter wheat by the growth retardant CCC

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

The herbicide HOE 23408; soil persistence, spring wheat cultivar tolerance, and interaction with broadleaf herbicides

The effects of N-1-Naphthylphthalamic acid on growth of yellow nutsedge and its control with N-Phosphonomethyl glycine

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