A study of various methods for stimulating the germination of vegetable and flower seed

Typescript (photocopy) Thesis (M.S.)--Iowa State College, 1927. Includes bibliography

Honeybees as Vetch Pollinating Agents

The Oklahoma Agricultural Experiment Station periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Seasonal History of the Southwestern Corn Borer, Diatraea grandiosella Dyar, in Oklahoma; and Experiments on Methods of Control

The Oklahoma Agricultural Experiment Station periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Towards new experimentally validated crystal plasticity models for polycrystalline metals

To enhance the current materials design paradigm, a vastly improved understanding of structure-property relationships across a wide range of material systems is required. Recent initiatives have highlighted the importance of using a synthesized approach of experiment and modeling to further elucidate these relationships. Numerical models should aim to robustly predict the effect of different microstructural features on material response, but certainly require validation against relevant experimental data, ideally on several different length scales. With this in mind, experimental in-plane deformation maps as a tool for mesoscale calibration is presented. First, an investigation of the errors associated with experimental strain maps from Digital Image Correlation (DIC) and methods for optimizing experimental and numerical protocols to reduce uncertainty are presented. Second, a method to employ in-plane strain maps in calibrating a high-order numerical model is presented, highlighting the ability of the experimental dataset to further reduce the parameter space determined from experimental macroscopic load-displacement data. Lastly, a new, microstructurally-sensitive creep damage model is proposed and employed in a finite-element framework, and shows excellent agreement with experimental data, especially in the tertiary creep regime.M.S

A study of various methods for stimulating the germination of vegetable and flower seed

Typescript (photocopy) Thesis (M.S.)--Iowa State College, 1927. Includes bibliography.</p

Honeybees as Vetch Pollinating Agents

Vetch seed production was increased four-fold by using honeybees as pollinating agents in a two-year test conducted by the Oklahoma Agricultural Experiment Station. The test was conducted at the Red Plains Conservation Experiment Station near Guthrie during the 1951 and 1952 seasons. This publication summarizes the results

Honey Bees and Vetch Pollination

Pollination studies in Oklahoma have been underway for several years, but most of the effort has been directed toward the production of alfalfa seed. During the 1951 season, we also made some preliminary tests to determine the effect of honey bees on the production of vetch seed. These observations were made at the Red Plains Experiment Station near Guthrie, Oklahoma. The field of vetch at this station consisted of about sixty acres. Mr. Harley Daniels, the superintendent of the station, made arrangements with Mr. Lyman Coe, Entomologist of the Samuel Roberts Noble Foundation, Ardmore, Oklahoma, to supply the bees for pollination of this field. The bees were moved into the field early in June at about the time the vetch was coming into full bloom. There was an average of two colonies per acre. The hives were distributed over the fields in groups of 15 to 20 colonies per location, so that if the bees from the various groups ranged in a radius of one-fourth mile from their home location, their activities would easily overlap. The heaviest concentration of bees was perhaps toward the south end of the field. Since the prevailing wind was from the southwest, it gave this group of bees the advantage of drifting with the wind over the main portion of the field