Index Catalog // ScholarsArchive@OSU

Natural outcrossing in spaced planted F₂ populations and solid seeded advanced generations of wheat (Triticum aestivum L. em Thell)

Creator:: Boinnet, Jerry K. K.
Abstract:: This study was conducted to investigate the possible contamination of foreign pollen at different stages of a wheat breeding program. These included spaced planted F₂ segregating populations, replicated yield trials and seed multiplication. The experimental wheat materials consisted of four different F₂ populations, four cultivars and two experimental lines. Two...
Resource Type:: Masters Thesis

Nitrate-nitrogen accumulation in the surface soil during the fallow period under different precipitation levels and tillage systems

Creator:: Senel, Atila Huseyin
Abstract:: The effects of different fallow moisture levels and tillage systems on the amount of nitrate-nitrogen accumulation in the 0-30 cm soil profile were studied. Fallow moisture treatments simulating typical dry, normal and wet precipitation cycles were established on trial plots. Data were obtained for nitrate-nitrogen, soil moisture and nitrogen mineralization...
Resource Type:: Masters Thesis
Full Text:: . E. H. Gardner for serving on my graduate committee. Special thanks to Michael Glenn for his

Aspects of manganese nutrition in filbert trees

Creator:: Silberman, Ricardo S.
Abstract:: Lime was applied at different rates to filbert trees grown in containers in an acid soil. As lime application rate increased, the leaf Mn and extractable soil Mn were significantly reduced. In control trees leaf Mn was over 1300 ppm, but no growth reduction or Mn toxicity symptoms were found....
Resource Type:: Masters Thesis
Full Text:: . Thanks are also extended to the other committee members, Drs. E. H. Gardner and G. D. Crabtree, for

The influence of various levels of nitrogen and potassium fertilizer on yield and performance of seed potatoes (Solanum tuberosum, L.)

Creator:: Mead, Richard M.
Resource Type:: Masters Thesis
Full Text:: writing of this thesis. I would also like to thank Dr. H. W. Youngberg, Dr. E. H. Gardner and Dr. R. E

Tillering, lodging, dry matter partitioning, and seed yield in ryegrass (Lolium spp.) as affected by the plant growth regulator paclobutrazol

Creator:: Hunter, James L.
Abstract:: Seed yield in ryegrass (Lolium spp.) is the product of the number of fertile tillers per unit area and seed weight per spike at maturity. These components of yield develop through a series of growth stages beginning with tiller bud initiation and finishing with seed filling. Environmental conditions during plant...
Resource Type:: Masters Thesis
Full Text:: . Appreciation is extended to Dr. H. W. Youngberg, Dr. E. H. Gardner, and Dr. T. E. Bedell for serving as

Refractory metals processing waste utilization on Dayton silty clay loam soil

Creator:: Polson, Richard Lewis
Abstract:: Waste products from industry have often been disposed in landfills without regard for any beneficial uses of the product in agricultural production. This research was conducted to determine the effect of a refractory metal processing waste product on (a) soil chemical and physical properties, (b) perennial ryegrass forage quality and...
Resource Type:: Masters Thesis
Full Text:: research pursuits. To Drs. E.H. Gardner, R.V. Frakes, and R.H. Brooks-- members of my graduate committee

Effects of lime and VA-Mycorrhiza interactions on growth responses of sweetgum seedlings

Creator:: Davis, Elizabeth Anne
Abstract:: A study, consisting of two sequential greenhouse experiments, was designed to determine the effects of soil liming upon the fungal partner in a mycorrhizal association. A Willamette Valley foothill soil, of the Jory series, was limed in increments to achieve a range of acidity and alkalinity. The P-deficiency and P-fixing...
Resource Type:: Masters Thesis
Full Text:: exceptional research facilities; Dr. E. Hugh Gardner for serving on my committee and showing enthusiastic

Nitrate nitrogen accumulation and distribution in the soil profile during a fallow grain rotation as influenced by different levels of soil profile moisture

Creator:: Aktan, Selman
Abstract:: The effect of different soil moisture levels on the amount and location of NO₃ -N accumulation in the soil profile were studied. The cultivars used in this study were Mcdermid, a soft white winter wheat, and Hudson, a medium early winter barley. Moisture treatments simulating dry, normal and wet fallow...
Resource Type:: Masters Thesis
Full Text:: graduate committee (Drs. E. Hugh Gardner, Warren E. Kronstad) for their cooperation and advice. Thanks

Effect of broadleaf weeds on winter wheat yields

Creator:: Gingrich, Gale Allen
Resource Type:: Masters Thesis
Full Text:: members of my committee, Drs. Arnold P. Appleby, Ralph E. Berry and E. Hugh Gardner for their help and

Fabrication and characterization of modulation doped field effect transistors for quantum waveguide structures

Creator:: Yindeepol, Wipawan, 1960-
Abstract:: Split and normal gate A1GaAs /GaAs MODFETs were fabricated along with the ohmic test structures and the Hall bar geometries. The DC characteristics of normal gate transistors were evaluated at room temperature and at 77K and the threshold voltages were extracted from the measurements and compared to the theoretical results....
Resource Type:: Masters Thesis
Full Text:: also very grateful to Prof. David J. Allstot, Prof. James H. Herzog and Prof. John A. Gardner for

ScholarsArchive@OSU

Natural outcrossing in spaced planted F₂ populations and solid seeded advanced generations of wheat (Triticum aestivum L. em Thell)

Nitrate-nitrogen accumulation in the surface soil during the fallow period under different precipitation levels and tillage systems

Aspects of manganese nutrition in filbert trees

The influence of various levels of nitrogen and potassium fertilizer on yield and performance of seed potatoes (Solanum tuberosum, L.)

Tillering, lodging, dry matter partitioning, and seed yield in ryegrass (Lolium spp.) as affected by the plant growth regulator paclobutrazol

Refractory metals processing waste utilization on Dayton silty clay loam soil

Effects of lime and VA-Mycorrhiza interactions on growth responses of sweetgum seedlings

Nitrate nitrogen accumulation and distribution in the soil profile during a fallow grain rotation as influenced by different levels of soil profile moisture

Effect of broadleaf weeds on winter wheat yields

Fabrication and characterization of modulation doped field effect transistors for quantum waveguide structures

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