Index Catalog // ScholarsArchive@OSU

Water relations in red and white clover seed crops

Creator:: Oliva, Ruben N.
Abstract:: Both red (Trifolium pratense L.) and white (Trifolium repens L.) clover seed yields can be highly variable and low in western Oregon. The objectives of this study were to: i) determine crop water requirements and supplemental irrigation timing, and ii) quantify the effects of soil and water status on inflorescence...
Resource Type:: Dissertation
Full Text:: to my major professor, Dr. Jeffrey J. Steiner, for his support and fine guidance. Thanks are also

Plant growth, thermal stress response, and enzyme kinetic relationships in native wetland and introduced grasses

Creator:: Brewer, Tim G.
Resource Type:: Masters Thesis
Full Text:: : CJ Jeffrey J. Steiner Previous studies suggest that the thermal dependence of enzyme kinetic

Establishment of Kura clover for seed with wheat intercrops

Creator:: Snelling, John P.
Abstract:: Kura clover (Trifolium ambiguum M. Bieb.) is slow to establish and has low seed yields the year after establishment. Intercropping a cereal grain during clover seed field establishment could provide additional revenue to seed growers, provided that intercropping did not jeopardize future clover seed yields. Factorial combinations of spring- and...
Resource Type:: Masters Thesis
Full Text:: Intercrops Abstract approved: Redacted for Privacy , ,Tfr i J. SYeiner Kura clover (Trifolium ambiguum M

Crossing behavior, RAPD analysis and chlorophyll flourescence in relationship to the geographic adaption of birdsfoot trefoil (Lotus corniculatus L.)

Creator:: García de los Santos, Gabino
Abstract:: Birdsfoot trefoil (Lotus corniculatus L.) is a popular perennial, non-bloating forage legume used for pasture, hay and silage throughout the temperate regions of Europe, Asia Minor, North Africa and North and South America. It is regarded as the most morphologically and biochemically variable species in the genus. Research investigating the...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGMENTS Thanks must be given to my major professor Dr. Jeffrey J. Steiner for his support, guidance

Water management effects on birdsfoot trefoil seed production

Creator:: García-Díaz, Carlos Alberto
Abstract:: There is no information available on water management of birdsfoot trefoil grown for seed. Information is also not available describing how to minimize seed losses due to shattering in order to obtain consistently high birdsfoot trefoil seed yields. The objectives of this research are to: (i) quantify crop water use,...
Resource Type:: Dissertation
Full Text:: Privacy ACKNOWLEDGMENTS I would like to express my sincere gratitude to Jeffrey J. Steiner, my major

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Creator:: McMorran, Jeffrey P.
Resource Type:: Dissertation
Full Text:: the Columbia basin AN ABSTRACT OF THE THESIS OF Jeffrey P. McMorran for the degree of Doctor of

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Creator:: DeCrappeo, Nicole M.
Abstract:: Sagebrush steppe ecosystems in the Great Basin have become increasingly threatened by the proliferation of cheatgrass (Bromus tectorum L.), an invasive annual grass. Diverse sagebrush and perennial bunchgrass landscapes can be converted to homogenous cheatgrass grasslands mainly through the effects of fire. Although the consequences of this conversion are well...
Resource Type:: Dissertation
Full Text:: Basin. Abstract approved: Peter J. Bottomley David D. Myrold

Molecular mechanisms underlying the high oleic acid phenotype in sunflower

Creator:: Schuppert, Gunnar Felix
Abstract:: Wildtype sunflower typically produces 12-24% oleic acid (18:1) and 70-82% linoleic acid (18:2). High-oleic sunflower, by contrast, produces up to 80-94% oleic acid. The monounsaturated oleic acid has a greater oxidative stability than the polyunsaturated linoleic acid, predominant in wildtype sunflower, and has greater nutritional benefits than polyunsaturated and saturated...
Resource Type:: Dissertation
Full Text:: and Dr. Jeffrey J. Morrell. I am very grateful for the time that each member of my graduate committee

Nitrate and water under terraced dryland wheat production in Oregon

Creator:: Strock, Jeffrey S.
Abstract:: Dry land agriculture using summer fallow is a common crop production practice in the Columbia Plateau region of eastern Oregon. Farmed-over level terraces are used to control surface water runoff and soil erosion. More than 70 percent of the average annual precipitation around Pendleton, Oregon (350 - 400 mm) falls...
Resource Type:: Masters Thesis
Full Text:: Oregon AN ABSTRACT OF THE THESIS OF Jeffrey S. Strock for the degree of Master of Science in Soil

Marker development, genome mapping, and cloning of candidate disease resistance genes in sunflower, Helianthus annuus L

Creator:: Gedil, Melaku Ayele
Abstract:: The level of polymorphisms of many biochemical and DNA markers are low in cultivated sunflower (Helianthus annuus L.). The number of mapped public DNA markers is limited. Molecular markers have not been developed for the most important diseases of sunflower, such as downy mildew. The objectives of this study were...
Resource Type:: Dissertation
Full Text:: . Steven H. Strauss, Dr. Oscar Riera-Lizarazu, and Dr. Jeffrey J. Jenkins for serving on my committee

ScholarsArchive@OSU

Water relations in red and white clover seed crops

Plant growth, thermal stress response, and enzyme kinetic relationships in native wetland and introduced grasses

Establishment of Kura clover for seed with wheat intercrops

Crossing behavior, RAPD analysis and chlorophyll flourescence in relationship to the geographic adaption of birdsfoot trefoil (Lotus corniculatus L.)

Water management effects on birdsfoot trefoil seed production

Effects of potato cropping practices on nitrate leaching in the Columbia basin

Soil community dynamics in sagebrush and cheatgrass-invaded ecosystems of the northern Great Basin

Molecular mechanisms underlying the high oleic acid phenotype in sunflower

Nitrate and water under terraced dryland wheat production in Oregon

Marker development, genome mapping, and cloning of candidate disease resistance genes in sunflower, Helianthus annuus L

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