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Browsing Department of Crop & Soil Science by Title

Now showing items 242-261 of 310

Quantifying C and N contents and isotope signatures of SOM pools in the H. J. Andrews DIRT plots

Keirstead, Heath (2004-06-02)

The mechanisms governing short- and long-term belowground carbon dynamics need to be understood. As part of a larger project developed to assess the effect of quantity and quality of litter inputs on the rate of soil o ...
Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Jantasuriyarat, Chatchawan (2001-09-05)

Spike morphology characteristics and the free-threshing habit of wheat have been extensively investigated because of their evolutionary significance and practical importance. Several genetic systems that govern these t ...
Quantitative trait locus analysis of agronomic and malting quality traits in the Harrington x Morex barley (Hordeum vulgare L.) mapping population

Marquez-Cedillo, Luis A. (2000-08-04)

Characterization of the determinants of economically important phenotypes showing complex inheritance should lead to more effective use of genetic resources. This study was conducted to determine the number, genome loc ...
Quantitative trait locus mapping of yield and yield components in barley (Hordeum vulgare L.)

Traore, Abdoulaye (1993-12-23)

Higher grain yield is a key objective in barley (Hordeum vulgare. L) breeding. Despite extensive research on the genetics of yield and its components, selection for yield per se is still the most extensively employed b ...
Quaternary marine terraces on Cyprus : constraints on uplift and pedogenesis, and the geoarchaeology of Palaipafos

Zomeni, Zomenia (2012-06-12)

Numerous flights of Quaternary marine terraces are present around the island of Cyprus, in the Eastern Mediterranean. These terraces are a result of the global eustatic sea-level curve and local tectonism. Marine Isotope ...
Questions and answers about the N-min test to predict spring N rate for soft white winter wheat grown in western Oregon

Hart, J.; Anderson, N. (2010-11-23)
Rattail fescue (Vulpia myuros) control in Italian ryegrass (Lolium multiflorum) grown for seed

Reyes, Carlos C. (1991-01-23)

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 ...
Removal of molluscicidal bait pellets by earthworms and its impact on control of the gray field slug (Derocerus reticulatum Mueller) in western Oregon grass seed fields

Gavin, W.E.; Mueller-Warrant, G.W.; Griffith, S.M.; Banowetz, G.M. (Elsevier Ltd., 2012-12)

Slugs are common pests of grass seed fields in western Oregon and the current focus of repeated, and often unsuccessful, efforts by growers to control them using molluscicides. Here we document rapid loss of molluscicida ...
Residue management and yield characteristics of fine fescue seed crops

Schumacher, Derek David (2005-04-29)

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 traditionall ...
Resistance to atrazine and diuron in California brome

Workineh, Mengistu Lemma (1994-08-22)
Response of Direct-Seeded Dry Bulb Onion to Simulated Glyphosate Drift with Variable Rates and Application Timings

Felix, Joel; Boydston, Rick; Burke, Ian C. (Weed Science Society of America, 2012-10)

Field studies were conducted in 2011 at the Malheur Experiment Station, Ontario, OR and Prosser, WA to evaluate the effect of simulated glyphosate drift on direct-seeded dry bulb onion. Glyphosate was applied at 8.6, 25. ...
Response of downy brome (Bromus tectorum) and Kentucky bluegrass (Pao pratensis) to primisulfuron

Hendrickson, Paul E. (1998-05-11)

Glasshouse and growth-chamber experiments were conducted to evaluate primisulfuron phytotoxicity and the influence of adjuvants on downy brome and Kentucky bluegrass. GR₅₀ (50% growth reduction) values were 0.97 ± 0.57 ...
Response of Dry Bulb Onion (Allium cepa), Sugar Beet (Beta vulgaris), and Pinto Beans (Phaseolus vulgaris) to Imazosulfuron Soil Residues

Felix, Joel (Weed Science Society of America, 2011-10)

Field studies were conducted in 2010 in Ontario, OR to evaluate the response of direct-seeded dry bulb onion, sugar beet, and pinto bean to imazosulfuron soil residues 12 months after application to control weeds in po ...
Response of soil microbial communities and nitrogen cycling processes to changes in vegetation inputs

Brewer, Elizabeth Ann (2010-12-30)

Changes in the type and amount of plant inputs can occur gradually, as with succession, or rapidly, as with harvesting or wildfire. With global change it is anticipated that both gradual and immediate scenarios will occ ...
Response of Striga-susceptible and Striga-resistant sorghum genotypes to soil phosphorus and colonization by an arbuscular mycorrhizal fungus

Leytem, Alicia B. (2012-05-11)

Striga, a genus of obligate parasitic weeds in the family Orobanchaceae, has been identified as the most important biological factor limiting agricultural productivity in sub-Saharan Africa. Germination of Striga seeds ...
Retention of wheat alleles in imidazolinone-resistant wheat x jointed goatgrass recurrent backcross generations

Kroiss, Lori Jennifer (2001-08-20)
Rillenkarren at Vayia: geomorphology and a new class of Early Bronze Age fortified settlement in Southern Greece

Tartaron, Thomas F.; Pullen, Daniel J.; Noller, Jay S. (Antiquity Publications Ltd., 2006)

With ever more inhibited programmes of excavation, new methods of site survey are always welcome. Here a soil geomorphologist joins forces with archaeologists to read the history of limestone blocks exposed on the surf ...
Role of a grass riparian zone in controlling the fate of nitrogen in a poorly drained agricultural landscape

Davis, Jennifer H. (2003-02-18)
Russet Burbank response to nitrogen fertilization and planting date

Thornton, Robert Kim, 1957- (1997-10-17)

Studies addressed impacts of planting dates and variable N applications on numbers and size of Russet Burbank stems and stolon nodal position in relation to tuber growth and levels of hollow heart (HH) and brown center ...
Ryegrass fluorescence expression during three generations of seed increase and its heritability among half-sib families

Floyd, Donald J. (2000-04-28)

Seedling root fluorescence (SRF) has been used as a test in the USA since 1941 to discriminate Italian ryegrass (Lolium multiflorum Lam.) from perennial ryegrass (L. perenne L.). Generally, roots of Italian ryegrass fluo ...