Index Catalog // ScholarsArchive@OSU

Herbicidal effectiveness of trifluralin as influenced by methods of incorporation into the soil and depth of weed seed germination

Creator:: Gargano, Don Richard
Abstract:: This study was conducted to compare the effectiveness of four methods of incorporating the herbicide trifluralin into the soil, and to determine the interaction between depth of incorporation of trifluralin and depth of weed seed germination. Field experiments on green and dry peas were established in Oregon and Idaho. Trifluralin,...
Resource Type:: Masters Thesis
Full Text:: DON RICHARD GARGANO for the MASTER OF SCIENCE (Name) (Degree) (Major) ¿) (Date) in FARM CROPS

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

Creator:: Valverde, Bernal E.
Abstract:: Growth of individual goosegrass (Eleusine indica (L) Gaertn.) plants of three dinitroaniline-herbicide resistant (R) and three susceptible (S) biotypes from North Carolina, South Carolina, and Mississippi was analyzed in greenhouse experiments. Leaf area and biomass measurements, including root, shoot, above-ground, and total dry weights were similar among the biotypes studied....
Resource Type:: Dissertation
Full Text:: laboratory techniques and for allowing me to use her laboratory facilities. Dr. Don Grabe generously allowed

Effect of timing and rate of metribuzin on wheat and barley cultivars and on Italian ryegrass

Creator:: Durutan, Nedret
Abstract:: A field study was conducted in 1973 and 1974 to determine optimum timing of metribuzin (4-amino-6-tert-butyl-3(methylthio) as - tria.zine-5(4H)one) on winter wheat (Triticum aestivum L. 'Hyslop') for control of Italian ryegrass (Lolium multiflorum Lam. ). Herbicide treatments were applied at 5 different stages of growth of winter wheat. Metribuzin at...
Resource Type:: Masters Thesis
Full Text:: Wilkinson (37) indicated that the less susceptible variety metabolized more metri- buzin in the root and

Interaction of cycloate with postemergence herbicides on sugarbeets and weeds

Creator:: Olson, Phillip David Leroy
Resource Type:: Masters Thesis
Full Text:: . Gentler (1966) and Wilkinson and Hardcastle (1969) have shown that EPTC can 2 reduce wax formation in

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:: produced by the parent plant which control ripening. Wilkinson (82) was the first experimenter who

Influence of Norbak, Dacagin, and Vistik on spray drift, volatility, adherence, and efficacy of several herbicides

Creator:: Ekins, Walter Leo
Abstract:: Norbak, Dacagin, and Vistik, when mixed with a spray solution, each have the unique property of increasing the viscosity of that solution. This property has been used commercially for the reduction of spray drift. Studies were made of the drift control adjuvants to determine the following: (1) the effect of...
Resource Type:: Masters Thesis
Full Text:: Walter Leo Ekins k !- r Lt 7 ` , Ç ACKNOWLEDGEMENTS Sincere appreciation is expressed to Dr. A. P

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

Factors affecting selective weedy rye (Secale sp.) control in winter wheat with the herbicide ethiazin

Creator:: Diener, Phillip R.
Abstract:: Weedy rye (Secale spp.) is a weed in the winter-wheat- growing regions in the Pacific Northwest and surrounding regions. Ethiazin (4-amino-6-(1,1-dimethylethyl)-3- (ehtylthio)-1,2,4-triazine-5 (4H)-one) has shown selective control of weedy rye in the cultivar 'Stephens', (Triticum aestivum). Field, greenhouse, and outdoor pot experiments were conducted to determine factors influencing selectivity. Field...
Resource Type:: Masters Thesis
Full Text:: Don Rydrych (associate major professor), of the Columbia Basin Agricultural Research Station, for the

The effect of soil factors on glyphosate availability in soil

Creator:: Kawate, Michael Ken
Abstract:: Glyphosate (N-(phosphonomethyl)glycine) is an effective foliar-applied herbicide with broad-spectrum activity. Greenhouse and laboratory experiments were conducted to determine the importance of soil moisture, autoclaved soil, soil type, sphagnum peat, soil pH, added phosphorus, and plant residues on crop establishment and growth when glyphosate was applied before emergence of the crop....
Resource Type:: Dissertation
Full Text:: properties of six soils. Extractable bases Organic Particle size analysis b Soil typea pH P K Ca Mg Na

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Creator:: Alvarado, Renan A.
Resource Type:: Dissertation
Full Text:: Silberstein, Bill Brewster, and Don Kloft were always not only willing to help but also provided me with a

Factors influencing wild oat control with N-benzoyl-N-(3,4-dichlorophenyl) alanine (SD 30053)

Creator:: Colbert, Donald Robert
Abstract:: Studies were conducted in 1969 and 1970 to evaluate the effectiveness of an experimental herbicide, SD 30053 (alanine, N-benzoyl-N-(3, 4-dichlorophenyl)-, ethyl ester), for wild oat (Avena fatua L.) control in winter cereals. The 1969 field studies showed that postemergence applications of SD 30053 were effective in controlling wild oats. Wild...
Resource Type:: Masters Thesis
Full Text:: chemical would be of great value to the cereal growers. In 1968, Don Rydrych, Pendleton Experiment Station

Stimulation of plant growth by sub-lethal concentrations of herbicides

Creator:: Wiedman, Steven John
Abstract:: Studies were conducted to determine the extent and nature of sub-lethal effects of herbicides on plant growth. At least one herbicide from each major chemical class of herbicides was evaluated under greenhouse conditions. Oat plants were grown in sand culture to eliminate soil interferences. Herbicides were applied pre-emergence in nutrient...
Resource Type:: Dissertation
Full Text:: ,..k)* 114.8 118.1* 117.3* 110.5 88.9 trifluralin 3 100 6.3 24.0 79.0 60. 1 100.9 81.8 130. 1 89. 1

The agronomic, environmental, and economic implications of the introduction of terbacil for weed control in Oregon commercial peppermint operations

Creator:: Harris, James O.
Abstract:: The use of terbacil for weed control was adapted by a high percentage of Oregon peppermint growers soon after its introduction in 1967. To help clarify some of the implications of terbacil usage, three studies were undertaken to collect information concerning (a) the movement and build-up of terbacil in various...
Resource Type:: Masters Thesis
Full Text:: rill irrigated fields were plowed before the sample was taken and sampling was probably not don=a

ScholarsArchive@OSU

Herbicidal effectiveness of trifluralin as influenced by methods of incorporation into the soil and depth of weed seed germination

Dinitroaniline-herbicide resistance in goosegrass (Eleusine indica) : ecophysiological aspects

Effect of timing and rate of metribuzin on wheat and barley cultivars and on Italian ryegrass

Interaction of cycloate with postemergence herbicides on sugarbeets and weeds

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

Influence of Norbak, Dacagin, and Vistik on spray drift, volatility, adherence, and efficacy of several herbicides

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

Factors affecting selective weedy rye (Secale sp.) control in winter wheat with the herbicide ethiazin

The effect of soil factors on glyphosate availability in soil

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Factors influencing wild oat control with N-benzoyl-N-(3,4-dichlorophenyl) alanine (SD 30053)

Stimulation of plant growth by sub-lethal concentrations of herbicides

The agronomic, environmental, and economic implications of the introduction of terbacil for weed control in Oregon commercial peppermint operations

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