Index Catalog // ScholarsArchive@OSU

Evaluating Field Production Issues by Investigating Grain Dormancy and Plant Segregation Patterns in Soft White Winter Wheat

Creator:: McCarthy, Christy A.
Abstract:: Wheat (Triticum aestivum) is a highly valuable crop that makes up a large portion of the world’s food. However, breeding for improved varieties with desirable characteristics can be a challenge. This research examined two different issues wheat breeders deal with throughout the selection process all the way to production of...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Christy A. McCarthy for the degree of Master of Science in Crop Science

Jointed goatgrass (Aegilops cylindrica Host) genetic diversity and hybridization with wheat (Triticum aestivum L.)

Creator:: Gandhi, Harish Tulshiramji
Abstract:: Jointed goatgrass (Aegilops cylindrica Host; 2n=4x=28; CCDD) is an agriculturally important species both as a weed and as a genetic resource for wheat (Triticum aestivum L.; 2n=6x=42; AABBDD) improvement. In order to better understand the evolution of this species, the diversity of Ae. cylindrica was evaluated along with its progenitors,...
Resource Type:: Dissertation
Full Text:: Goatgrass (Aeqilops cylindrica Host) Genetic Diversity and Hybridization with Wheat (riticum aestivum L

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

Creator:: Alexander, William Larry
Abstract:: The major objective of this study was to determine why certain winter wheat cultivars, when hybridized, will produce a greater proportion of desirable plants in subsequent, segregating generations. Three winter wheat parents were chosen as the experimental material, based on their known performance as parents. Yamhill and Pullman Selection 101...
Resource Type:: Dissertation
Full Text:: predict subsequent progeny performance in winter wheat (Triticum aestivum L.) AN ABSTRACT OF THE THESIS

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:: (Lolium multiflorum L.) William C. Young III AN ABSTRACT OF THE THESIS OF for the degree of Master of

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Creator:: Jantasuriyarat, Chatchawan
Abstract:: 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 traits have been reported. Some studies suggest polygenic inheritance while others have identified major genes. This study was conducted to identify and locate...
Resource Type:: Masters Thesis
Full Text:: Loci Tnfluencing Free-Threshing Habit and Spike Morphology in Wheat (Triticum aestivum L.). Abstract

Topometric Analysis for High-throughput Phenotyping of Seed Shattering in Perennial Ryegrass (Lolium perenne L.)

Creator:: Tubbs, Travis B.
Abstract:: Seed shattering is a constraint to improvement of seed yield in Lolium perenne L. and as a result, seed retention is an essential trait for this valuable crop. Field studies were conducted near Corvallis, OR in two years (2017-2018 and 2018-2019) to identify genetic variation for seed retention and to...
Resource Type:: Dissertation
Full Text:: perenne L.) Abstract approved: ______________________________________________________ Thomas G

Dormancy of Kentucky bluegrass (POA pratensis L.) seed : the effect of germination environment, hormone applications, and hulling on seed germination

Creator:: Hostetler, Mary
Resource Type:: Masters Thesis
Full Text:: Dormancy of Kentucky bluegrass (POA pratensis L.) seed

Influence of competition on combining ability estimates and subsequent prediction of progeny performance in wheat (Triticum aestivum L. em Thell.)

Creator:: Corral, Leonardo R.
Resource Type:: Dissertation
Full Text:: and Subsequent Prediction of Progeny Performance in Wheat (Triticum aestivum L. em Thell). AN

Assessment of genetic resistance to strawbreaker foot-rot (Pseudocercosporella Herpotrichoides) in selected winter wheat (Triticum aestivum L.) cultivars

Creator:: Encinas-Mungarro, Andres
Abstract:: Strawbreaker foot-rot is a major limiting factor to cost efficient winter wheat production in the Pacific Northwest. Development of resistant cultivars has been hindered by the lack of adequate levels of genetic resistance and screening techniques which can consistently detect desired genotypes. Studies were conducted to determine if the reported...
Resource Type:: Dissertation
Full Text:: (Pseudocercosporella Herpotrichoides) in selected winter wheat (Triticum aestivum L.) cultivars AN ABSTRACT OF THE

Effects of tillage systems on nitrate-nitrogen accumulation and soil structure

Creator:: Avcin, Abdulkadir
Abstract:: Effects of different tillage systems on nitrate-nitrogen accumulation in a 120 cm profile and on soil structure in the top 30 cm of the profile were studied under a fallow-wheat rotation. Treatment effects on nitrate-nitrogen, soil moisture and soil aggregation were measured. Fallow tillage treatments consisting of bare fallow, stubble-mulch...
Resource Type:: Masters Thesis
Full Text:: -NITROGEN ACCUMULATION AND SOIL STRUCTURE Abstract approved: Redacted for Privacy riuyu L. DUILUH Effects

ScholarsArchive@OSU

Evaluating Field Production Issues by Investigating Grain Dormancy and Plant Segregation Patterns in Soft White Winter Wheat

Jointed goatgrass (Aegilops cylindrica Host) genetic diversity and hybridization with wheat (Triticum aestivum L.)

A study of methods of parental evaluation using testers to predict subsequent progeny performance in winter wheat (Triticum aestivum L.)

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

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Topometric Analysis for High-throughput Phenotyping of Seed Shattering in Perennial Ryegrass (Lolium perenne L.)

Dormancy of Kentucky bluegrass (POA pratensis L.) seed : the effect of germination environment, hormone applications, and hulling on seed germination

Influence of competition on combining ability estimates and subsequent prediction of progeny performance in wheat (Triticum aestivum L. em Thell.)

Assessment of genetic resistance to strawbreaker foot-rot (Pseudocercosporella Herpotrichoides) in selected winter wheat (Triticum aestivum L.) cultivars

Effects of tillage systems on nitrate-nitrogen accumulation and soil structure

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