Index Catalog // ScholarsArchive@OSU

Managing water use and growth of a perennial ryegrass living mulch in Christmas trees

Creator:: Murray, Helene
Abstract:: A living mulch system consists of growing a regulated cover crop with an economic crop. Living mulches are often interplanted with horticultural crops, but competition for water can adversely affect crop production. Various management practices may limit the negative effects. Studies were conducted for two purposes: (1) to determine if...
Resource Type:: Masters Thesis
Full Text:: committee members, Dr. Garvin Crabtree and Professors Tom Cook and Larry Burrill, for their advise

Biology and control of barb goatgrass (Aegilops triuncialis L.)

Creator:: Peters, Amy
Abstract:: This research examined the biology of barb goatgrass (Aegilops triuncialis L.) a weedy annual grass that is invading the rangelands of California. Germination and root growth characteristics of barb goatgrass were compared to soft chess (Bromis mollis L.), medusahead rye (Taeniatherum caput-medusae (L.) Nevski), slender wild oats (Avena barbata L.),...
Resource Type:: Masters Thesis

Studies of napropamide decomposition on the soil surface

Creator:: Apley, Kathryn Lynne
Abstract:: Napropamide [2-(alpha-naphthoxyl)-N,N-diethylpropionamide], a preemergence herbicide, is widely used in the United States on a variety of tree fruits, nut crops, vegetables, and mint for annual grass and broadleaf weed control. When napropamide has been left on the soil surface without incorporation through irrigation or mechanical means, inconsistent results have been...
Resource Type:: Masters Thesis
Full Text:: . Neil Christensen, and Larry Burrill for reviewing my thesis and serving on my graduate committee. To

Interference of annual weeds in seedling alfalfa

Creator:: Fischer, Albert J.
Abstract:: The interference of barnyardgrass (Echinochloa crusgalli), pigweed (Amaranthus retroflexus),downy brome (Bromus tectorum),and tumble mustard (Sisymbrium altissimum) with alfalfa was studied. Alfalfa was seeded with each of the four weeds on August 14 and September 15, 1981, and on April 13, 1982. Alfalfa also was seeded on August 27, 1981, with...
Resource Type:: Masters Thesis
Full Text:: his many hours of generous help and technical assistance in the field work. Mr. Larry Burrill for

Effects of tillage-induced soil compaction on carrot seedlings emergence and yield

Creator:: Thomasson, James E.
Abstract:: The effects of five tillage treatments on soil bulk density and mechanical impedance were examined on Newburg sandy loam soil in the Willamette Valley, Oregon, in 1987. Subsequent effects on seedling emergence and yield of carrots (Daucus carota L., cvs. Orlando Gold and Royal Chantenay) were also measured. Mechanical impedance...
Resource Type:: Masters Thesis
Full Text:: also to my other committee members: Tim Righetti, Jim Vomocil and Larry Burrill. Special thanks go to

Differential tolerance of woody nursery crop seedlings to napropamide

Creator:: Sumaryono, 1957-
Resource Type:: Masters Thesis
Full Text:: study program at Oregon State University. To Prof. Larry Burrill and Dr. Les Fuchigami for serving

Effect of glyphosate when applied to grass and legume seeds or preemergence to bentgrass (Agrostis tenuis Sibth.)

Creator:: Salazar, Luis Carlos
Abstract:: Paraquat (1,11-dimethy1-4,4'-bipyridinium ion) and glyphosate [N (phosphonomethyl)glycine] are herbicides utilized for chemical seedbed preparation in the establishment of grass and legume seed crops. When these herbicides are applied after seeding the crop, seeds which are not protected by a layer of soil could be exposed to the herbicide. Effects of...
Resource Type:: Masters Thesis
Full Text:: suggestions concerning the writing of this thesis. A special thanks is expressed to Mr. Larry Burrill, Dr

Biology of Bromus rigidus : interference in winter wheat, seed longevity in the soil, and vernalization requirements for flowering

Creator:: Gleichsner, Jean Ann
Resource Type:: Dissertation
Full Text:: members of my graduate committee, Dr. Arnold Appleby, Prof. Larry Burrill, Dr. Mark Wilson, Dr. Kenton

Informal Education on an Estuary Nature Trail : A Study of Visitor Knowledge, Attitudes and Behavior

Creator:: Osterman-Sussman, Irene
Abstract:: The Mark 0. Hatfield Marine Science Center (HMSC) public education opportunities include interpretive programs offered along the Estuary Nature Trail. The purpose of this study was to determine the effectiveness of three informal education programs, interpretive signs, a self-guided trail brochure, and guided naturalist walks, in imparting information on the...
Resource Type:: Masters Thesis
Full Text:: to thank each of my committee members at Oregon State University, Larry Burrill, Dan Edge, Roberta

Effect of seed burial and vernalization on germination and growth of Bromus carinatus and its control with several herbicides

Creator:: Rojas-Calvo, Carlos Enrique
Abstract:: California brome (Bromus carinatus Hook & Arn), is considered an important weed infesting wheat and grass seed fields in the Willamette Valley of Oregon. Field and greenhouse experiments were conducted to study some biological aspects to develop more efficient management strategies. A field experiment was conducted to determine the effect...
Resource Type:: Masters Thesis
Full Text:: . Larry Burrill, Dr. M. T. AliNiazee, and Dr. Nabeel S. Mansour, for their time and support. My special

ScholarsArchive@OSU

Managing water use and growth of a perennial ryegrass living mulch in Christmas trees

Biology and control of barb goatgrass (Aegilops triuncialis L.)

Studies of napropamide decomposition on the soil surface

Interference of annual weeds in seedling alfalfa

Effects of tillage-induced soil compaction on carrot seedlings emergence and yield

Differential tolerance of woody nursery crop seedlings to napropamide

Effect of glyphosate when applied to grass and legume seeds or preemergence to bentgrass (Agrostis tenuis Sibth.)

Biology of Bromus rigidus : interference in winter wheat, seed longevity in the soil, and vernalization requirements for flowering

Informal Education on an Estuary Nature Trail : A Study of Visitor Knowledge, Attitudes and Behavior

Effect of seed burial and vernalization on germination and growth of Bromus carinatus and its control with several herbicides

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