Index Catalog // ScholarsArchive@OSU

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

Cell wall formation in Fucus zygotes : cellulose synthesis and deposition after fertilization

Creator:: Stevens, Patricia T.
Abstract:: Under defined cultural conditions, large populations of zygotes of the brown algae Fucus vesiculosus L. and F. distichus L. Powell synchronously form a cell wall shortly after fertilization. Intact cell walls, free of cytoplasm and maintaining shape properties of early stages of embryo development, have been isolated from these zygotes....
Resource Type:: Dissertation
Full Text:: . Hugh E. Gardner for their helpful suggestions in the preparation of this thesis and for serving on my

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

Nitrogen fertilizer rate and application timing effects on growth and seed-oil yield of meadowfoam

Creator:: McGahuey, Michael L.
Abstract:: Meadowfoam has been identified as a potential oilseed crop for production on poorly drained soils in areas with cool, moist winters. The effects of N fertilizer on meadowfoam (Limnanthes alba Benth.) have been studied in Oregon and Maryland, but the results have not been consistent with respect to the effects...
Resource Type:: Masters Thesis
Full Text:: attention to my research and thesis. They include: Dr. Hugh Gardner, Soil Science; Dr. David Hannaway, Crop

The effect of water injection at seeding in dry soil on the germination and growth of winter wheat (Triticum aestivum L.)

Creator:: Noori, Fariborz
Abstract:: Stand establishment plays a significant role in the development and yield of winter wheat (Triticum aestivum L.). Availability of soil moisture to the germinating seed is one of the most critical factors affecting stand establishment. Water injection is a method of applying supplemental moisture to the soil in direct contact...
Resource Type:: Dissertation
Full Text:: also goes to my graduate committee, Drs. Hugh Gardner, Done Grabe, Jim Baggett and Harry Mack for

Responses of algal populations to parasitism by Aphelidium chlorococcarum and chytrids in an Oregon sewage lagoon

Creator:: Woods, Wendy W.
Abstract:: The abundance of algal species and their parasites was monitored weekly for two years in a sewage lagoon at the Corvallis Airport, Oregon. During the cooler months, Euglena species were dominant followed by a Chlamydomonas assemblage in the spring and a predominantly Scenedesmus assemblage in the summer and fall. Parasites...
Resource Type:: Dissertation
Full Text:: Quatrano, Anne Anderson and Hugh Gardner for their guidance. I am grateful to my father, John Weller, for

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

ScholarsArchive@OSU

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

Cell wall formation in Fucus zygotes : cellulose synthesis and deposition after fertilization

Effect of broadleaf weeds on winter wheat yields

Nitrogen fertilizer rate and application timing effects on growth and seed-oil yield of meadowfoam

The effect of water injection at seeding in dry soil on the germination and growth of winter wheat (Triticum aestivum L.)

Responses of algal populations to parasitism by Aphelidium chlorococcarum and chytrids in an Oregon sewage lagoon

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.)

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