Index Catalog // ScholarsArchive@OSU

A comparison of three systems of phenotypic selection for grain yield in three spring barley populations

Creator:: Hayes, Patrick M.
Abstract:: Concerns regarding the most effective means of evaluating segregating generations of spring barley prompted this investigation. Three methods of selection were considered: bulk, pedigree, and single seed descent. F₆ lines derived by each method were grown in a replicated yield trial. The effectiveness of each method was measured in terms...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Warren E. Kronstad Concerns regarding the most effective means of evaluating

Nature of the inheritance of gluten strength and carotenoid pigment content in winter by spring and durum wheat crosses (Triticum turgidum L. Var. durum)

Creator:: Ammar, Karim
Abstract:: Durum wheat cultivars for North-Eastern Oregon have to be competitive in terms of their yield potential with soft white winter wheat cultivars and meet strict quality requirements of the milling industry. Combining the high yield potential of fall planted durum wheat cultivars which have an acceptable level of winter hardiness...
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy'l Dr Warren E. Kronstad Durum wheat cultivars for North-Eastern Oregon have to be

Estimates of genetic variability resulting from single, top, and double cross populations in durum wheat (Triticum turgidum L. var. durum)

Creator:: Abdennadher, Mourad
Abstract:: The success of a plant breeding program depends upon the availability of useable genetic diversity. Such diversity may be enhanced depending on the type of hybridization strategy employed. Segregating progenies resulting from F2 populations, a double cross, and a top cross were compared for the amount of useable genetic diversity...
Resource Type:: Masters Thesis
Full Text:: Populations in Durum Wheat (Triticum turgidum L. var. durum.) Redacted for PrivacyAbstract approved: Warren E

Chemically induced pollen supression and subsequent natural outcrossing in selected wheat cultivars (Tritcum aestivum L. en Thell)

Creator:: Lewis, Hal A.
Abstract:: Effective chemical control of pollination would provide an alternative to the cytoplasmic male-sterile system in hybrid wheat (Triticum aestivum L.) production. The objective of this study was to determine concentration, formulation, growth stage of application and genotypic effects on levels of induced pollen suppression and subsequent natural out-crossing from foliar...
Resource Type:: Masters Thesis
Full Text:: Cultivars (Triticum aestivum L. em Thell) Abstract approved: Redacted for Privacy Dr. Warren E. Kronstad

Potential reciprocal differences for selected traits in six different F₁ wheat populations

Creator:: Stein, Ira Steven
Abstract:: Concerns about the possible reciprocal differences resulting from systematic crossings of winter and spring wheat gene pools prompted this investigation. If traits can be improved by simply reversing the direction of a cross, then identification of the best female parent in a cross would be helpful for breeding programs. Two...
Resource Type:: Masters Thesis
Full Text:: . Warren E. Kronstad Concerns about the possible reciprocal differences resulting from systematic

Possible associations between three procedures to measure noodle starch quality in winter wheat (Triticum aestivum L.)

Creator:: Weight, Chris (Christopher Thompson)
Abstract:: Until recently, the viscoamylograph had been the primary method for measuring starch as it relates to noodle quality in wheat. This method requires a large sample of flour and is time consuming. With the introduction of the rapid visco-analyser (RVA) in 1986 and the more recent flour swelling volume procedure,...
Resource Type:: Masters Thesis
Full Text:: .) Abstract approved: Warren E. Kronstad Until recently, the viscoamylograph had been the primary method for

Natural outcrossing in spaced planted F₂ populations and solid seeded advanced generations of wheat (Triticum aestivum L. em Thell)

Creator:: Boinnet, Jerry K. K.
Abstract:: This study was conducted to investigate the possible contamination of foreign pollen at different stages of a wheat breeding program. These included spaced planted F₂ segregating populations, replicated yield trials and seed multiplication. The experimental wheat materials consisted of four different F₂ populations, four cultivars and two experimental lines. Two...
Resource Type:: Masters Thesis

Interrelation of the components of grain yield in a cross between dwarf and semidwarf wheat (Triticum aestivum L.) cultivars

Creator:: Medina, Luis E.
Abstract:: Parents and progeny populations from a cross of 'Stephens'x 'Tibet dwarf' were grown in a spaced-planted experiment to obtain information concerning the nature of inheritance and possible associations between grain yield and the components of yield. Agronomic traits measured on an individual plant basis were: heading date, days to maturity,...
Resource Type:: Masters Thesis
Full Text:: 19.95 d 3.300 g 0.0567 1 74.31 p 44.35 v Tibet dwarf 20.70 bc 17.36 18.09 e 1.546 h 0.0423 m 22.50 q

Evaluating grain yield as influenced by biological yield and harvest index in four winter wheat (Triticum aestivum) crosses involving near-isogenic lines

Creator:: Rahman, Mohammad Moznur
Abstract:: Crosses between four near isogenic lines for height reducing genes Rht₁ and Rht₂ and one agronomically superior dwarf line, including generations through F₃ with reciprocal backcrosses constituted the experimental materials. Mean, range and standard deviation values for eleven traits pertaining to the different generations were obtained. Heterosis and inbreeding depression...
Resource Type:: Masters Thesis
Full Text:: Science Department Redacted for Privacy Dean of Gra a :J e School (: Date thesis is presented March

Ultrastructural study of the embryo during germination involving douglas fir (Pseudotsuga menseizii Franco) seeds

Creator:: Hsu, Kay Yong-Yong
Abstract:: The seeds of Douglas fir, a representative of the gymnosperm flora, were studied at six stages of germination to discern the structures of food reserves and to study ultrastructural changes occurring during germination in the embryo and resulting seedlings. The materials were fixed in three fixatives, dehydrated with ethanol series,...
Resource Type:: Masters Thesis
Full Text:: HSU for the (Name) M. S. (Degree) in FARM CROPS presented on]100 (Major) (Date) Title

ScholarsArchive@OSU

A comparison of three systems of phenotypic selection for grain yield in three spring barley populations

Nature of the inheritance of gluten strength and carotenoid pigment content in winter by spring and durum wheat crosses (Triticum turgidum L. Var. durum)

Estimates of genetic variability resulting from single, top, and double cross populations in durum wheat (Triticum turgidum L. var. durum)

Chemically induced pollen supression and subsequent natural outcrossing in selected wheat cultivars (Tritcum aestivum L. en Thell)

Potential reciprocal differences for selected traits in six different F₁ wheat populations

Possible associations between three procedures to measure noodle starch quality in winter wheat (Triticum aestivum L.)

Natural outcrossing in spaced planted F₂ populations and solid seeded advanced generations of wheat (Triticum aestivum L. em Thell)

Interrelation of the components of grain yield in a cross between dwarf and semidwarf wheat (Triticum aestivum L.) cultivars

Evaluating grain yield as influenced by biological yield and harvest index in four winter wheat (Triticum aestivum) crosses involving near-isogenic lines

Ultrastructural study of the embryo during germination involving douglas fir (Pseudotsuga menseizii Franco) seeds

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