Index Catalog // ScholarsArchive@OSU

Exogenous and endogenous factors related to seed germination and vigor in certain varieties of sugarbeet Beta vulgaris L.

Creator:: Kim, Syng Chul
Abstract:: Studies were conducted on the causes of low germination of monogerm sugarbeet seed grown in western Oregon. Emphasis was placed on the identification and measurement of endogenous inhibitors as related to the germination and vigor. Both qualitative and quantitative analytical methods were applied to examine the organic substances in the...
Resource Type:: Masters Thesis
Full Text:: SUGARBEET BETA VITLCIATZTS T, Redacted for Privacy-Abstract approved: David 0. Chilcote Studies were

The effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L)

Creator:: Mulanax, Matthew William
Abstract:: The effect of clipping and supplemental nitrogen application on seed production of Linn perennial ryegrass and Merion Kentucky bluegrass was studied. Clipping and nitrogen treatments did not significantly affect the seed yield of Linn perennial ryegrass during the 1967 growing season. The seed yield of Merion Kentucky bluegrass was significantly...
Resource Type:: Masters Thesis
Full Text:: PRATENSIS L) Abstract approved: Redacted for privacy David O. Chilcote The effect of clipping and

Influence of post-harvest management practices on plant growth and seed yield of cool season grasses

Creator:: Stanwood, Phillip Charles
Abstract:: Field and controlled environment chamber studies were carried out to evaluate modes of action of post-harvest treatments on the development and seed yield of cool season grasses. Red fescue (Festuca rubra L.) was used as the primary test species. There was no difference in total biomass production of red fescue...
Resource Type:: Masters Thesis
Full Text:: GRASSES Abstract approved: Redacted for Privacy Dr. David 0. Chilcote Field and controlled environment

Yield, quality characteristics, and composition of Limnanthes alba seed as affected by rate, source, and date of nitrogen application

Creator:: Ayres, Thomas Arthur
Abstract:: The effect of nitrogen (N) application on seed yield of Limnanthes alba was studied for two years at two locations. Seeding following alfalfa (Medicago sativa L.) was compared to establishment after wheat (Triticum aestivum L.). Treatments used were a control (no N applied), and two rates of N (50 and...
Resource Type:: Masters Thesis
Full Text:: APPLICATION Abstract Approved: Redacted for privacy Dr. David 0. Chilcote The effect of nitrogen (N

Physiological and biochemical characteristics of two cultivars of tall fescue (Festuca arundinacea Schreb.) under different environmental conditions

Creator:: Fino, Antonio Carlos
Abstract:: Two cultivars of tall fescue (Festuca arundinacea Schreb.) with contrasting growth habits were studied under field and growth chamber conditions. Fawn, an established cultivar since 1964, and TFM, an experimental line, were observed to grow better during spring and fall months respectively, in the field. Different temperature regimes of 10/4,...
Resource Type:: Masters Thesis
Full Text:: DIFFERENT ENVIRONMENTAL CONDITIONS Abstract approved: Redacted for Privacy Dr. David 0. Chilcote Two

Lodging control and yield enhancement in Morex spring barley with paclobutrazol treatment

Creator:: Morrison, Laura A.
Abstract:: Lodging in cereals can cause significant decreases in yield. It is both a problem in susceptible cereal cultivars with a tall-stemmed, weak-strawed growing habit and in lodging-resistant cereal cultivars when they are grown under high-nitrogen, high-moisture regimes. Plant growth regulators (PGR's) are chemical growth retardants that offer a method of...
Resource Type:: Masters Thesis
Full Text:: . David 0. Chilcote Lodging in cereals can cause significant decreases in yield. It is both a problem in

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:: Privacy Dr. David 0. Chilcote Seed yield in ryegrass (Lolium spp.) is the product of the number of

The effect of source and size of parent tuber on yield of the Russet Burbank and Kennebec potato

Creator:: Youngberg, Harold Wayne, 1929-
Abstract:: Samples of Russet Burbank and Kennebec seed potatoes used by Oregon growers were grown in replicated plots at Klamath Falls, Prineville and Corvallis. Observations were made of total yield, yield of U.S. No. 1 tubers and number of stems produced per plot. Total yields of the Russet Burbank variety were...
Resource Type:: Masters Thesis
Full Text:: aration of this thesis: Dr. D.O. Chilcote for his assistance and advice in the completion of the thesis

Factors influencing dormancy and persistence in buried seed of five grass species

Creator:: Schafer, David Eugene
Abstract:: Field and growth chamber studies were conducted to ascertain the effects of some environmental factors on the persistence of viable buried seed of Agrostis tenuis, Avena fatua, Lolium multiflorum, Lolium perenne, and Poa annua. Through the use of a population model, specific effects of environment on parameters of viability and...
Resource Type:: Masters Thesis
Full Text:: DORMANCY AND PERSISTENCE IN BURIED SEED OF FIVE GRASS SPECIES Abstract approved Dr. D. O. Chilcote

Physiological characteristics of different forage yielding tall fescue (Festuca arundinacea Schreb.) selections under field sward conditions

Creator:: Lhamby, Julio Cesar
Resource Type:: Masters Thesis
Full Text:: . Chilcote The study of relationships of plant characteristics to forage yield in tall fescue has often

ScholarsArchive@OSU

Exogenous and endogenous factors related to seed germination and vigor in certain varieties of sugarbeet Beta vulgaris L.

The effect of defoliation and nitrogen application on the seed yield of Linn perennial ryegrass (Lolium perenne L) and Merion Kentucky bluegrass (Poa pratensis L)

Influence of post-harvest management practices on plant growth and seed yield of cool season grasses

Yield, quality characteristics, and composition of Limnanthes alba seed as affected by rate, source, and date of nitrogen application

Physiological and biochemical characteristics of two cultivars of tall fescue (Festuca arundinacea Schreb.) under different environmental conditions

Lodging control and yield enhancement in Morex spring barley with paclobutrazol treatment

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

The effect of source and size of parent tuber on yield of the Russet Burbank and Kennebec potato

Factors influencing dormancy and persistence in buried seed of five grass species

Physiological characteristics of different forage yielding tall fescue (Festuca arundinacea Schreb.) selections under field sward conditions

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