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Filtering by: Advisor Chilcote, D. O. Academic Affiliation Farm Crops

Creator:: Schafer, David Eugene
Abstract:: Field and growth chamber studies were conducted to ascertain the effects of some environmental factors on the persistence of viable buried seed of Agrostis tenuis, Avena fatua, Lolium multiflorum, Lolium perenne, and Poa annua. Through the use of a population model, specific effects of environment on parameters of viability and...
Resource Type:: Masters Thesis
Full Text:: DORMANCY AND PERSISTENCE IN BURIED SEED OF FIVE GRASS SPECIES Abstract approved Dr. D. O. Chilcote

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:: : Redacted for Privacy Dr. D. 0. Chilcote Experiments were conducted under controlled environments to

Creator:: Schafer, David Eugene
Abstract:: Controlled environment chamber and laboratory studies were carried out to evaluate selectivity and chemodynamics of bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) in winter wheat (Triticum aestivum L.) 'Nugaines', a tolerant species, and coast fiddleneck (Amsinckia intermedia Fisch. & Mey), a susceptible species. A comparison of ED₅₀ values, based upon reduction of whole plant growth,...
Resource Type:: Dissertation
Full Text:: their respective roles in the preparation and completion of this thesis. Dr. D. 0. Chilcote, my major

Creator:: Kim, Syng Chul
Abstract:: Studies were conducted on the causes of low germination of monogerm sugarbeet seed grown in western Oregon. Emphasis was placed on the identification and measurement of endogenous inhibitors as related to the germination and vigor. Both qualitative and quantitative analytical methods were applied to examine the organic substances in the...
Resource Type:: Masters Thesis
Full Text:: . W. Chilcote who served on my graduate advisory committee. Dr. D. M. TeKrony who furnished the

Creator:: Maguire, James Dale
Abstract:: Seed of Cougar and Newport Kentucky bluegrass (Poa pratensis L.) was harvested at Pullman and Spokane at several stages of maturity. Variations in seed attributes resulting from environmental and maturity effects were evaluated through germination tests, tetrazolium staining, seed moisture and seed weight determinations. Seedling vigor was determined by .speed...
Resource Type:: Dissertation
Full Text:: ENVIRONMENTAL AND ENDOGENOUS FACTORS Abstract approved: Dr. D. O. Chilcote Seed of Cougar and Newport

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:: PRATENSIS L) Abstract approved: Redacted for privacy David O. Chilcote The effect of clipping and

Creator:: West, David L.
Abstract:: Field, growth chamber, and greenhouse studies were carried out to evaluate factors that cause low seed set in Dactylis Glomerata L. The variety, 'Latar', and the parental clones of the variety, 'Pennlate', were studied in detail. Floral anatomy investigations indicated that 98 percent of Dactylis flowers opened at Corvallis in...
Resource Type:: Dissertation
Full Text:: encouragement in these investigations. Dr. D. 0. Chilcote, my major professor, for his guidance during the

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