Index Catalog // ScholarsArchive@OSU

Factors influencing metribuzin use in strip-planted wheat

Creator:: Zeghida, Ali
Abstract:: Equipment for strip-till planting is under development in wheat-fallow rotations in the Columbia Basin of Oregon. This involves the absence of tillage during the fallow season. At planting time, the strip-till planter creates a narrow band into which the wheat seed is placed. The area between the rows is undisturbed...
Resource Type:: Masters Thesis
Full Text:: surface very slowly during the 5 minutes after agitation, with no clear separation. They resuspended very

Sugarbeet response to mechanical and chemical manipulation of the shoot apical meristem

Creator:: Eberlein, Charlotte Vawter
Resource Type:: Masters Thesis
Full Text:: regrowth removed Mefluidide, 1/2 lb/A 4 4 4 5 5 4 5 4 4.4 Mefluidide, 1 lb/A 5 5 5 4 4 4 4 5 4.5 No

Degradation of the herbicide EPTC in three Willamette Valley soils

Creator:: Coleman, Quentin Charles
Abstract:: EPIC (S-ethyl dipropylthiocarbamate) is a selective herbicide which controls some annual grasses, annual broadleaves, and perennial grasses when incorporated into the soil before planting. In the last few years, reports have been received of certain fields in the Willamette Valley of Oregon in which EPIC was no longer effective. Preliminary...
Resource Type:: Masters Thesis
Full Text:: received of certain fields in the Willamette Valley of Oregon in which EPIC was no longer effective

Influence of lime on Italian ryegrass control in winter wheat with five herbicides

Creator:: Ozdilek, Engin
Abstract:: Liming has been shown to increase the activity of certain soil-applied herbicides. One research worker reported improved weed control with diuron after lime had increased soil pH levels. This could be caused by improved competitive ability of the wheat, greater availability of the herbicide, or a combination of the two...
Resource Type:: Masters Thesis
Full Text:: 2852, 68 952, 14 6. 84 713. 17 476.07 O. 85 NS ** 88. 64 ** 59. 17 Lime 2 10. 5, 00 O. 62 NS

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:: lower elevation (Table 2), no significant differences were found to exist at the 5% confidence level

Differential sensitivity of two common groundsel biotypes (Senecio vulgaris L.) to several s-triazine herbicides

Creator:: Radosevich, Steven R.
Abstract:: Studies were initiated to determine the response of two common groundsel biotypes (Senecio vulgaris L. ) to several s-triazine herbicides. Herbicides tested were: 2-chloro-4,6-bis(ethylamino)-striazine (simazine), 2-chloro-4-(ethylamino)-6-(isopropylamino)- s-triazine (atrazine) 2-(sec-butylamino)-4-(ethylamino)-6-methoxys- triazine (GS-14254), 2, 4-bis(isopropylamino)-6-methoxy-striazine (prometone), 2-(tert-butylamino)-4-(ethylamino)-6-methylthio- s-triazine (terbutryn), and 2, 4-bis(isopropylamino)-6- methylthio-s-triazine (prometryne). One biotype was much more susceptible than the...
Resource Type:: Dissertation
Full Text:: - trolled by 0. 5 ppm of atrazine and simazine, 1 ppm of GS-14254 and prometone, and 4 ppm of prometryne

Factors influencing the herbicidal activity and persistence of isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone in soil

Creator:: Donaldson, Dean Robert
Abstract:: The purpose of this study was to evaluate the activity of Sindone (isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone) under field conditions and to gain information regarding the rate of detoxification of Sindone in soil. A series of trials were established in sugar beet fields in California, Oregon, and Washington. Sindone...
Resource Type:: Masters Thesis
Full Text:: control at rates of 1. 5 to 3. 0 lb /A when irrigated after application. Areas that received no

Persistence of prodiamine and norflurazon herbicides in soil and their activity on alfalfa rotational crops

Creator:: Fischer, Vernon F.
Abstract:: Norflurazon [4-chloro-5-(methylamino)-2(3-(trifluoromethyl) phenyl)- 3(2H)- pyridazinone] and prodiamine (N3, N3-di-n-propy1-2,4- dinitro-6-(trifluoromethyl)-m-phenylenediamine) are two herbicides being considered for weed control in alfalfa. Rotational crops following alfalfa may be sensitive to residues of these herbicides. Studies were conducted in Oregon and Washington to examine the soil persistence and activity of these herbicides on...
Resource Type:: Masters Thesis
Full Text:: . Field corn and potatoes were injured significantly only when planted 3 and 5 MAT. No significant

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:: , Annual Report p. 22-24. 5. Agronomic Crop Science Department Project, Annual Report. p. 1-5. . 1972-73

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:: ' -bipyridinium (paraquat), and 3 -tert-buty1-5-chloro-6-methyluracil (terbacil) with the nonionic surfactant X

ScholarsArchive@OSU

Factors influencing metribuzin use in strip-planted wheat

Sugarbeet response to mechanical and chemical manipulation of the shoot apical meristem

Degradation of the herbicide EPTC in three Willamette Valley soils

Influence of lime on Italian ryegrass control in winter wheat with five herbicides

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

Differential sensitivity of two common groundsel biotypes (Senecio vulgaris L.) to several s-triazine herbicides

Factors influencing the herbicidal activity and persistence of isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone in soil

Persistence of prodiamine and norflurazon herbicides in soil and their activity on alfalfa rotational crops

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

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.)

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