Index Catalog // ScholarsArchive@OSU

Influence of post-harvest burning, thinning, shading and residue management on the subsequent growth and seed yield of Festuca rubra L.

Creator:: Kim, Syng Chul
Abstract:: The effects of post-harvest burning of red fescue on production of shoots, roots and inflorescences as well as seed yield were determined at the clonal and community level by comparing fescue plants in a burned area with those in unburned plots within the same field. Studies were also conducted to...
Resource Type:: Dissertation
Full Text:: . R. V. Frakes and D. F. Grabe, Department of Agronomic Crop Science for serving on my graduate

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:: of this manuscript. Special thanks to Dr. R. V. Frakes, Dr. K. L. Chambers, and Dr. D. Weber, a

CER and leaf characteristics of four tall fescue (Festuca arundinacea Schreb.) selections differing in forage yield

Creator:: Cohen, Cynthia Joy
Abstract:: Gas exchange, leaf area development, leaf anatomy and stomatal characteristics of four tall fescue selections differing in forage yield were examined to provide further insight into characteristics associated with yield differences of these selections. Winter-growing TFM 26 and TFM 16, the highest and lowest-yielding selections, respectively, and summer-growing selections TFK...
Resource Type:: Masters Thesis
Full Text:: lower boundary layer resistance (r ). While differences among selections were not signifi-a cant in

Effects of growth retardant and nitrogen level on growth, development and yield of Yamhill wheat

Creator:: Nounamo, Laurent
Abstract:: Increases in wheat production due to breeding may be reaching a plateau. The application of N-fertilizer beyond optimum levels leads to lodging and to an increase in tiller death. The use of plant growth regulators (retardants) may be an answer for future increases in production. Experiments were conducted in 1983...
Resource Type:: Dissertation
Full Text:: , Dr. E.H. Gardner, Dr. Alvin R. Mosley, Dr. James A. Vomocil, and Dr. Robert C. Worrest for serving

Floral and vegetative development in Dactylis glomerata as influenced by different temperature levels and durations

Creator:: Von Amsberg, Hans Joachim
Abstract:: Growth chamber and field experiments were conducted to investigate the effects of different temperature levels and durations on floral induction and vegetative growth in orchardgrass. Propagules of two clones, XLI-8 (clone R) and MID-5 (clone 0), from the synthetic variety Pennlate, were used in all experiments. Clone R plants were...
Resource Type:: Dissertation
Full Text:: and vegetative growth in orchardgrass. Propagules of two clones, XLI -8 (clone R) and MID -5 (clone

Effects of plant regulators on growth development and seed production of alfalfa development

Creator:: Phillips, John Charles
Abstract:: Experiments were conducted to determine the effects of certain plant regulatory chemicals on seed production of alfalfa (Medicago sativa L.). Two plant regulators, SADH (succinic acid 2,2-dimethylhydrazide) and TIBA (2,3,5- triiodobenzoic acid), received particular attention. Replicated field tests of the plant regulators were carried out on the cultivar 'Talent' in...
Resource Type:: Dissertation
Full Text:: -6266-R, resulted in seed yields of 'Talent' of approximately 1+00 kg ha-1 compared to 168 kg ha-1 in

Tiller development in Dactylis Glomerata L. as influenced by nutrient supply and panicle removal

Creator:: Stobbe, Elmer Henry
Abstract:: Experiments were conducted under controlled environments to investigate the influence of nutrient supply and panicle removal on tiller and panicle production in orchardgrass. Propagules of two clones, MID-5 (Clone 0), from the synthetic variety Pennlate, and Clone B, a locally adapted clone, were utilized for these studies. Tiller production was...
Resource Type:: Dissertation
Full Text:: on new shoots of timothy (Phleum pratense) before the first tiller was recorded. The minimum time

Grazing duration effects on seed yield of annual ryegrass (Lolium multiflorum L.)

Creator:: Young, William C. (William Clyde)
Abstract:: Spring grazing of annual ryegrass (Lolium multiflorum L.) seed fields with sheep is a common practice in the Willamette Valley of Oregon. However, the effect of grazing on seed yield in Oregon has not previously been investigated. This experiment was designed to determine the effects of duration of spring grazing...
Resource Type:: Masters Thesis
Full Text:: dissections indicated that grazing beyond mid-March resulted in the 65 60 55 50 45 40 35 G *--r

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

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Creator:: Manurung, Sabam Oloan
Abstract:: Field study with 5 tall fescue genotypes treated at the vegetative growth stage, with 0, 0.28, 0.56, and 0.84 kg/ha of mefluidide was initiated in July, 1980. The regrowth of these plants were again treated at the booting growth stage in April, 1981, with the same rates of mefluidide as...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Influence of post-harvest burning, thinning, shading and residue management on the subsequent growth and seed yield of Festuca rubra L.

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

CER and leaf characteristics of four tall fescue (Festuca arundinacea Schreb.) selections differing in forage yield

Effects of growth retardant and nitrogen level on growth, development and yield of Yamhill wheat

Floral and vegetative development in Dactylis glomerata as influenced by different temperature levels and durations

Effects of plant regulators on growth development and seed production of alfalfa development

Tiller development in Dactylis Glomerata L. as influenced by nutrient supply and panicle removal

Grazing duration effects on seed yield of annual ryegrass (Lolium multiflorum L.)

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

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

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