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Effect of sheep grazing on subterranean clover (Trifolium subterraneum L.) seed production

Creator:: Steiner, Jeffrey John
Abstract:: Subterranean clover (Trifolium subterraneum L.) seed production practices in Oregon are different from those in Australia. There, seed is produced on fields which are managed primarily for forage. In Oregon, seed fields are managed for seed as the primary product and forage is of secondary concern. Some sheep grazing is...
Resource Type:: Dissertation
Full Text:: to Dr. Don F. Grabe, my major professor, for his help, guidance, and generosity of time throughout

Effect of seed deterioration on germination of wheat under environmental stresses

Creator:: Than, Mya
Abstract:: Germinating seeds often encounter stress conditions of temperature, moisture and oxygen in the field. Germination tests conducted under these stress conditions in the laboratory might be methods of differentiating high and low vigor seeds. The objectives of this study were to (1) determine if these stress conditions reduce germination performance...
Resource Type:: Masters Thesis
Full Text:: ENVIRONMENTAL STRESSES Redacted for Privacy Abstract Approved: Don F. Grabe Germinating seeds often encounter

Effect of moisture stress on yield and quality of winter wheat seed

Creator:: Assuncao, Marcos Vinicius
Abstract:: Two experiments were conducted to determine the effects of moisture stress on physiological changes that occur during the vegetative and reproductive stages of the wheat (Triticum aestivum L.) plant, and to relate these effects to seed yield, quality and performance. In a field experiment, different levels of moisture stress were...
Resource Type:: Dissertation
Full Text:: QUALITY OF WINTER WHEAT SEED Abstract approved: Don F. Grabe Two experiments were conducted to determine

SDS-PAGE of seed proteins for identification of varieties and species of ryegrass (Lolium spp.)

Creator:: Ferguson, Janet M.
Abstract:: The number of varieties of ryegrass (Lolium spp.) has increased greatly in recent years. An accurate and rapid laboratory technique to identify these varieties would benefit the consumer as well as protect an organization's Plant Variety Protection rights. There is also a need for a technique to complement the seedling...
Resource Type:: Masters Thesis
Full Text:: Approved: Don F. Grabe The number of varieties of ryegrass (Lolium spp.) has increased greatly in recent

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Creator:: Chastain, Thomas G.
Abstract:: Orchardgrass and tall fescue seed crops are commonly springplanted in Oregon, but do not produce a marketable crop during the first growing season. Establishing orchardgrass and tall fescue with cereal companion crops would provide income during the seeding year and could increase seed production profits. This study was conducted to...
Resource Type:: Dissertation
Full Text:: Date thesis is presented November 3, 1987 ACKNOWLEDGEMENT I would like to thank Dr. Don F. Grabe

Plant and seed development in four Cuphea species

Creator:: Kaliangile, Imanga
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Don F. Grabe Cuphea is a potential source of medium-chain trigly- cerides for

Seed maturation in subterranean clover (Trifolium subterraneum L.)

Creator:: Mouwen, Charles M.
Abstract:: A seed maturation study was conducted to determine the earliest date seed of subterranean clover (Trifolium subterraneum L.) may be safely harvested without reduction in yield or seed quality. In 1981 and 1982, seed and bur weight, seed and bur moisture content, germination and seedling vigor were studied to determine...
Resource Type:: Masters Thesis
Full Text:: Subterraneum L.) Abstract Approved: Redacted for Privacy Don F. Grabe A seed maturation study was conducted

Flowering, seed maturation, and harvest timing for turf-type tall fescue

Creator:: Andrade, Ronaldo Pereira de
Resource Type:: Dissertation
Full Text:: Harvest Timing of Turf-Type Tall Fescue Abstract approved: Don F. Grabe Lack of uniformity in tiller

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:: ACKNOWLEDGEMENTS I express my thanks to Dr. Don F. Grabe, my major professor, for providing the opportunity to

Development of priming techniques for Kentucky bluegrass seed

Creator:: Tanaka, Jun-ichiro, 1958-
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Don. F. Grabe A reliable method of germination enhancement by seed priming would

ScholarsArchive@OSU

Effect of sheep grazing on subterranean clover (Trifolium subterraneum L.) seed production

Effect of seed deterioration on germination of wheat under environmental stresses

Effect of moisture stress on yield and quality of winter wheat seed

SDS-PAGE of seed proteins for identification of varieties and species of ryegrass (Lolium spp.)

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Plant and seed development in four Cuphea species

Seed maturation in subterranean clover (Trifolium subterraneum L.)

Flowering, seed maturation, and harvest timing for turf-type tall fescue

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

Development of priming techniques for Kentucky bluegrass seed

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