Index Catalog // ScholarsArchive@OSU

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

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

Rattail fescue (Vulpia myuros) control in Italian ryegrass (Lolium multiflorum) grown for seed

Creator:: Reyes, Carlos C.
Abstract:: Italian ryegrass growth and production from positionally selective applications and sublethal rates of a nonselective herbicide were compared to growth and production when treated with diuron applied preemergence as a broadcast treatment and safened by activated carbon applied over the crop row. In the positionally selective treatments, herbicide spray was...
Resource Type:: Dissertation
Full Text:: (Lolium multiflorum) grown for seed AN ABSTRACT OF THE THESIS OF Carlos C. Reyes for the degree of

Residue management and yield characteristics of fine fescue seed crops

Creator:: Schumacher, Derek David
Abstract:: Chewings fescue [Festuca rubra L. subsp. fallax (Thuill.) Nyman] is a desired turfgrass with dense sod forming capabilities and superior shade tolerance. Thermal residue management (open-field burning) has traditionally been used to remove post-harvest residue and maintain seed yield over the life of the stand. However, alternative non-thermal residue management...
Resource Type:: Masters Thesis
Full Text:: Yield Characteristics of Fine Fescue Seed Crops Abstract approved: Thomas G. Chastain Chewings fescue

Trinexapac-ethyl and open-field burning in creeping red fescue (Festuca rubra L.) seed production in the Willamette Valley

Creator:: Zapiola, Maria Luz
Abstract:: Open-field burning has been an effective, economical, and widespread method of post-harvest residue management in creeping red fescue seed production in the Willamette Valley since the late 1940s. However, the use of field burning has been legislatively restricted due to air quality and safety issues. The foliar-applied plant growth regulator...
Resource Type:: Masters Thesis
Full Text:: Open-Field Burning in Creeping Red Fescue (Festuca rubra L.) Seed Production in the Willamette Valley

ScholarsArchive@OSU

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

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

Rattail fescue (Vulpia myuros) control in Italian ryegrass (Lolium multiflorum) grown for seed

Residue management and yield characteristics of fine fescue seed crops

Trinexapac-ethyl and open-field burning in creeping red fescue (Festuca rubra L.) seed production in the Willamette Valley

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