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Semi-Global Analysis Of The Early Cold Stress Response Transcriptome Of Developing Seedlings Of Rice (Oryzasativa L.,Japonica), Chen Cheng
Electronic Theses and Dissertations
Plants are either sensitive or insensitive to low temperatures. Cool-season species acclimate to chilling and develop tolerance to freezing. Warm-season species vary in the degree of sensitivity to chilling and are not capable of acclimation. Both freezing and chilling tolerance involve the activity of an intricately coordinated network of genes. The regulatory network that defines cold acclimation and freezing tolerance is well understood in Arabidopsis. The centerpiece of this network is a group of transcriptional activators that coordinate a battery of downstream defense-related genes. In contrast, little is known about the corresponding regulon in non-acclimating species. This study utilized …
"The Most Powerful Woman In The World": The Rhetorical Image Construction Of Condoleezza Rice, Karin Dawn Tidgewell
"The Most Powerful Woman In The World": The Rhetorical Image Construction Of Condoleezza Rice, Karin Dawn Tidgewell
UNLV Retrospective Theses & Dissertations
Condoleezza Rice is recognized as one of President George W. Bush's closest advisors and one of America's most influential officials. During her tenure as Bush's National Security Advisor and then as America's first African American female Secretary of State, Rice faced situations in which her image was challenged, undermined, or questioned by other individuals. This project explores how she addressed her image through examination of her rhetorical strategies in her opening statement before the 9/11 Commission in April of 2004, her first address as Secretary of State to State Department staff in January of 2005, and her first public speech …
Association Genetics For Agronomic Traits In Rice And Cloning Of Als Herbicide Resistant Genes From Coreopsis Tinctoria Nutt, Nengyi Zhang
Association Genetics For Agronomic Traits In Rice And Cloning Of Als Herbicide Resistant Genes From Coreopsis Tinctoria Nutt, Nengyi Zhang
LSU Doctoral Dissertations
We have evaluated the potential of discriminant analysis (DA) to detect candidate markers associated with twelve economically important traits in a large population of unrelated U.S. and Asian inbred lines of rice. Associated marker alleles detected by DA mapped within the same genetic intervals when compared with previous traditional QTL mapping experiments that evaluated progeny derived from various controlled crosses. New markers identified by DA suggest that the procedure can also uncover relevant genetic regions not possible by standard genetic tests. With the same dataset, we also compared different modern regression approaches for selecting molecular markers associated with the twelve …
Echinochloa Polystachya Management In Louisiana Rice, Roy Matthew Griffin
Echinochloa Polystachya Management In Louisiana Rice, Roy Matthew Griffin
LSU Doctoral Dissertations
E. polystachya introduced at stand densities (SD) of 10,000 through 70,000 stolon segments/ha produced 5.4 to 6 stolons/introduced segment; however, 130,000 through 520,000 SD produced 1.4 to 2.1 stolons per introduced segment indicating increased intra- and inter-specific competition. Stolon production was greater than 160,000 plants/ha with 30,000 through 520,000 SD. The 520,000 SD produced a total stolon length of 318 km/ha and no difference was observed for the 260,000 SD. Total node production was 290,000 nodes/ha with an average of 29 nodes/introduced segment in the 10,000 SD and 5.4 to 9.8 nodes/introduced segment with 70,000 or greater SD indicating greater …
Breeding Waterbird Use Of Rice Fields In Southwestern Louisiana, Sergio Pierluissi
Breeding Waterbird Use Of Rice Fields In Southwestern Louisiana, Sergio Pierluissi
LSU Master's Theses
Rice fields are agricultural wetlands concentrated in several areas in the U.S., including southwestern Louisiana. Rice fields are flooded for much of the year and support thick emergent vegetation, potentially providing high-quality habitat for several species of breeding waterbirds. The objectives of this study were to (1) determine relative nest density, nest success, and habitat associations of breeding waterbirds in southwestern Louisiana rice fields and (2) determine the effectiveness of callback surveys as a monitoring tool. In the summers of 2004 and 2005, marsh bird surveys and nest searches were conducted in Cameron, Jefferson Davis, Vermilion, and Acadia Parishes in …