Index Catalog // ScholarsArchive@OSU

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:: Seed Yield Of Linn Perennial Ryegrass (Lolium perenne L) and Merion Kentucky Bluegrass (Poa Pratensis L

Grass seed quality in relation to time of windrowing

Creator:: Dübbern de Souza, Francisco Humberto
Abstract:: This study was undertaken to obtain information on the quality of grass seed when windrowed at the high moisture levels necessary for obtaining maximum yields. A secondary goal was to monitor moisture and temperature fluctuations in the windrow and to relate their effects to development and deterioration of the seed....
Resource Type:: Masters Thesis
Full Text:: Grass seed quality in relation to time of windrowing AN

Estimators of seed yield and its components in a plant introduction nursery of tall fescue (Festuca arundinacea Schreb.)

Creator:: Deffinbaugh, Daniel D.
Abstract:: The objective of this study was to identify visual or easily measured morphological characters associated with seed yield or its components in a spaced-plant nursery of tall fescue (Festuca arundinacea Schreb.). In 1977, 26 plant characteristics were observed on 210 plants from seven different geographic regions of origin. Each origin...
Resource Type:: Masters Thesis
Full Text:: Estimators of seed yield and its components in a plant

Effect of lot size on lot uniformity in Lolium spp. seed

Creator:: Cook, Ronald Lawrence
Abstract:: Studies were conducted to determine the uniformity of three commercial seed lots of ryegrass (Lolium spp.) and the effects of lot size on lot uniformity. Individual bag-samples were taken from each seed lot. Factors considered were percentage purity, annual ryegrass, perennial ryegrass, weed, other crop, inert matter, and germination. Number...
Resource Type:: Masters Thesis
Full Text:: Effect of lot size on lot uniformity in Lolium spp. seed

Nutrient management and cycling in grass seed crops

Creator:: Horneck, Donald Arthur
Abstract:: Grass seed production in Oregon's Willamette Valley traditionally relied on open field burning for straw residue disposal and nutrient recycling. Changes in residue management from open field burning to methods that remove straw coincided with rapidly declining K soil test values. A survey of grass seed fields showed that many...
Resource Type:: Dissertation
Full Text:: CYCLING IN GRASS SEED CROPS Abstract approved: John Hart Grass seed production in Oregon's Willamette

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:: preparation in the establishment of grass and legume seed crops. When these herbicides are applied after

Establishment of grass seed crops with cereal companion crops

Creator:: DeHaas, Jeroen A. M.
Abstract:: In conventional cropping systems in the Willamette Valley, slow establishing grass species, such as Kentucky bluegrass (Poapratensis L.) are planted in the spring and seed is not harvested until the following year. Due to increasing annual production costs, it is necessary to generate a cash return from each field each...
Resource Type:: Masters Thesis
Full Text:: Establishment of grass seed crops with cereal companion

Development of oven and Karl Fischer techniques for moisture testing of grass seeds

Creator:: Benjamin, Ethan
Abstract:: Seed moisture is a primary factor influencing seed quality during harvesting, storage, and marketing of grass seed. However, the Association of Official Seed Analysts' Rules for Testing Seeds do not contain methods for moisture testing. The oven methods in use by seed testing laboratories in the U.S. are diverse and...
Resource Type:: Masters Thesis
Full Text:: . Grabe Seed moisture is a primary factor influencing seed quality during harvesting, storage, and

Floret fertility and seed yield in selected perennial ryegrass cultivars as affected by time and rate of nitrogen (N) application

Creator:: Gangi, Ali Salih
Abstract:: To increase efficiency of seed production, it is important to understand the effects of nitrogen (N) fertilizer rate and time of application. In particular, the effects on floret fertility should be examined since only a small proportion of florets actually produce harvestable seed. For these reasons, experiments were conducted in...
Resource Type:: Dissertation
Full Text:: Floret fertility and seed yield in selected perennial

Impact the impact of research and training programs on the demand for grass seed in overseas markets

Creator:: Vega-H, Esteban
Abstract:: This research examines whether alternative methods of export commodity promotion and market development, such as technical training and trade servicing activities, have been successful in increasing the demand for grass seed produced in Oregon in international markets. A single equation linear input demand model and a linear model adjusted to...
Resource Type:: Masters Thesis
Full Text:: of Research and Training Programs on the Demand for Grass Seed in Overseas Markets. Abstract

ScholarsArchive@OSU

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)

Grass seed quality in relation to time of windrowing

Estimators of seed yield and its components in a plant introduction nursery of tall fescue (Festuca arundinacea Schreb.)

Effect of lot size on lot uniformity in Lolium spp. seed

Nutrient management and cycling in grass seed crops

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

Establishment of grass seed crops with cereal companion crops

Development of oven and Karl Fischer techniques for moisture testing of grass seeds

Floret fertility and seed yield in selected perennial ryegrass cultivars as affected by time and rate of nitrogen (N) application

Impact the impact of research and training programs on the demand for grass seed in overseas markets

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