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Dna-Binding And Oligomerization Properties Of A Functionally Distinct Dps Homolog, Dps-1 From Deinococcus Radiodurans, Gargi Bhattacharyya Jan 2007

Dna-Binding And Oligomerization Properties Of A Functionally Distinct Dps Homolog, Dps-1 From Deinococcus Radiodurans, Gargi Bhattacharyya

LSU Doctoral Dissertations

Dps (DNA protection during starvation) proteins play an important role in the protection of prokaryotic macromolecules from damage by reactive oxygen species. The Dps homolog, Dps-1, from the radiation-resistant bacterium Deinococcus radiodurans has an extended N-terminal tail. In the crystal structure of Dps-1, the first ~30 N-terminal residues are invisible and the remaining 25 residues form a loop that harbors a novel metal binding site. The data presented here show that retention of this N-terminal metal site is necessary for formation of the dodecameric protein assembly. Previous studies have suggested that the lysine-rich N-terminus of Dps proteins participates in DNA …

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Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison Jan 2007

Assessing Physical Function In Bilateral And Unilateral Total Knee Arthroplasty Patients., Tiina Tuulia Garrison

LSU Doctoral Dissertations

The general objective of this dissertation was to investigate physical function in osteoarthritis (OA) and total knee replacement (TKA) patients. First, a validation study was performed to evaluate the validity of the Continuous Scale Physical Functional Performance (CS-PFP10) test in knee OA awaiting TKA. The CS-PFP10 scores were compared to the Western Ontario and McMaster Universities OA Index (WOMAC), The Knee Society’s Clinical Rating System (KSS), and the Short Form 36-item health survey (SF-36) physical function scores. It was hypothesized that at least moderate associations between the CS-PFP10 test scores and the WOMAC, KSS, and SF-36 scores in TKA candidates …

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Reproductive And Metabolic Effects Of Recombinant Equine Leptin On Seasonally Anovulatory Mares, Pamela Boliew Mitcham Jan 2007

Reproductive And Metabolic Effects Of Recombinant Equine Leptin On Seasonally Anovulatory Mares, Pamela Boliew Mitcham

LSU Master's Theses

Mares of poor body condition have low plasma leptin concentrations, while obese mares have the highest concentrations. Leptin is a primary signal of body condition to the brain in other species; therefore, low leptin concentrations in thin mares could contribute to their extended anovulatory period in winter compared to obese mares. The current experiment was designed to determine whether recombinant equine leptin, administered to seasonally anovulatory mares, would induce ovarian activity and ovulation in the winter. Leptin effects on metabolism were also studied. Beginning January 7, leptin-treated mares (n = 9) received daily i.m. injections of 10 mg recombinant equine …

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Pathology And Seedling Nutrition Of Spartina Alterniflora (Smooth Cordgrass), Clark Lane Robertson Jan 2007

Pathology And Seedling Nutrition Of Spartina Alterniflora (Smooth Cordgrass), Clark Lane Robertson

LSU Master's Theses

Transplants of Spartina alterniflora Loisel. (smooth cordgrass, Poaceae) are effective in stabilizing and protecting vulnerable coastal wetlands from erosion. However, the expense and labor associated with propagation and transplanting restrict the widespread use of S. alterniflora in coastal restoration and protection projects. As an alternative, seeding of S. alterniflora by aircraft has been proposed as a more useful and economical approach for revegetating denuded marsh sites. However, a period of stalled growth, which lasts for 12 or more weeks, has been observed in smooth cordgrass seedlings, and this increases their susceptibility to being washed away by inundating tides. This stalled …

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A Home-Based Intervention To Promote Physical Activity In Low Income African American Adults, Dorothy Fauntleroy Whitehead Jan 2007

A Home-Based Intervention To Promote Physical Activity In Low Income African American Adults, Dorothy Fauntleroy Whitehead

LSU Doctoral Dissertations

Physical activity has long been regarded as a key component to a healthy lifestyle; however, the U.S. has disturbingly high rates of sedentary behavior and related chronic illnesses (National Center for Chronic Disease Prevention and Health Promotion, 2003). While many studies have attempted to address inactive lifestyle, few have reached out to high risk groups, such as African Americans and low income individuals. A recent review of the physical activity literature among African Americans called for more research with this population and encouraged future studies to focus on enduring exercise behavior (at least 6 months post intervention) and use theory-based …

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The Effects Of Various Feed Additives On Growth Performance Of Nursery Pigs, Jennifer Tucker Jan 2007

The Effects Of Various Feed Additives On Growth Performance Of Nursery Pigs, Jennifer Tucker

LSU Master's Theses

The objective of this research was to evaluate the effects of various feed additives on growth performance of nursery pigs. An experiment was conducted in which pigs were fed a conventional Phase 1 diet containing: 1) no salmon protein hydrolysate (SPH) or spray-dried porcine plasma (SDPP); 2-3) 1.5% SPH or SDPP; 4-5) 3.0% SPH or SDPP; or 6) 1.5% SPH and 1.5% SDPP. The results of this experiment showed growth performance was unaffected by source or level of protein during any growth phase. Overall gain:feed was greater (P = 0.08) for pigs fed the 1.5% level of protein than for …

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Quantitative And Spatial Analysis Of The Microscopic Bone Structures Of Deer (Odocoileus Virginianus), Dog (Canis Familiaris), And Pig (Sus Scrofa Domesticus), Zoe Hensley Morris Jan 2007

Quantitative And Spatial Analysis Of The Microscopic Bone Structures Of Deer (Odocoileus Virginianus), Dog (Canis Familiaris), And Pig (Sus Scrofa Domesticus), Zoe Hensley Morris

LSU Master's Theses

Structure and morphology of bone tissue are variable by species. The influence of different factors on structure and morphology is still debated. Qualifying and quantifying these differences are necessary in the evaluation of fragmentary bones in order to identify specific species. To understand the influence of species of origin on the microscopic structure of bone tissue, the influence of developmental and biomechanical forces specific to a skeletal element must also be assessed. This research is a preliminary analysis of the histological bone structures in terms of their area, density and spatial organization. To achieve this research goal, the cross-section of …

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Rna:Dna As An Indicator Of Nutritional Condition And Growth In Larval Naked Goby, Gobiosoma Bosc, Michelle C. Satterwhite Jan 2007

Rna:Dna As An Indicator Of Nutritional Condition And Growth In Larval Naked Goby, Gobiosoma Bosc, Michelle C. Satterwhite

LSU Master's Theses

Developing organism-based metrics for assessing habitat quality is an important tool in conservation and restoration of aquatic habitats. The use of the RNA:DNA ratio as an early indicator of habitat effects on growth of nekton species has been suggested, but requires species-specific laboratory assessment prior to field application. We used food availability in laboratory treatments to simulate differences in habitat quality. Wild Gobiosoma bosc eggs were collected using nest-traps constructed of PVC pipe. Eggs from several different nests collected in the field were hatched in the lab, yielding larvae that were randomly assigned to three feeding treatments in two replicate …

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Genotypic Variability And Inheritance Of Iron And Zinc In Sweetpotato, Michael William Courtney Jan 2007

Genotypic Variability And Inheritance Of Iron And Zinc In Sweetpotato, Michael William Courtney

LSU Master's Theses

Sweetpotato [Ipomœa batatas (L.) Lam.] is a major subsistence crop in Sub-Saharan Africa, where iron and zinc deficiency in humans is an important health problem. A sweetpotato cultivar suited for subsistence farming, with high iron and zinc concentration, would be important in alleviating these deficiencies. The main objective of this research was to identify the extent of genetic variability of iron and zinc concentration in sweetpotato germplasm. An important subcomponent of this research was to determine the heritability of iron and zinc in sweetpotato. Protocol development studies were also conducted to aid in determining proper sampling technique. The results of …

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Sensory Characteristics And Optimization Of A Low-Sodium Salt Formulation And Its Food Application, Armen Khachatryan Jan 2007

Sensory Characteristics And Optimization Of A Low-Sodium Salt Formulation And Its Food Application, Armen Khachatryan

LSU Doctoral Dissertations

Excessive consumption of sodium is associated with high blood pressure in people. Reduction of sodium intake and replacement of salt with salt substitutes are an essential component of the primary prevention of hypertension. Potassium chloride is the most widely used salt substitute. However, when used in large amounts, it imparts bitterness and metallic aftertaste. Therefore, bitterness masking agents need to be used in salt substitute formulations. L-Arginine has been reported to have bitterness masking properties. No research has yet been conducted to investigate the effects of KCl and L-Arginine on the perception of saltiness and bitterness in the mixture of …

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Chemical Analysis Of Extracts From Port-Orford Cedar Wood And Bark, Heng Gao Jan 2007

Chemical Analysis Of Extracts From Port-Orford Cedar Wood And Bark, Heng Gao

LSU Master's Theses

This study investigated a Soxhlet extract procedure to separate chemical components in the wood and bark of Port-Orford cedar (POC) (Chamaecyparis lawsoniana). The bio-activities, antioxidant properties, and decay resistance were evaluated. The heartwood extracts were analyzed by gas chromatography-mass spectrometry (GC-MS). Three vitro assays including (1) 1, 1-diphenyl-2-picrylhydrazyl hydrate (DPPH• ) radical scavenging assay, (2) 2,2-azinobis ( 3-ethylbenzothiszoline-6-sulfonic acid) diammonium salt (ABTS) radical cation scavenging ability assay, and (3) metal chelating activity assay were carried out to evaluate the antioxidant activity. The total phenol content of the extracts was determined by the Folin-Ciocalteu method and expressed as Gallic Acid Equivalent …

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Particle And Dredge-Scale Kinetic Studies Of Hydrophobic Organic Chemical Desorption From Sediment, Justin Edward Birdwell Jan 2007

Particle And Dredge-Scale Kinetic Studies Of Hydrophobic Organic Chemical Desorption From Sediment, Justin Edward Birdwell

LSU Doctoral Dissertations

The discharge of hydrophobic organic chemicals (HOCs) and other hazardous substances from anthropogenic sources to surface waters and the atmosphere has led to the widespread contamination of bottom sediments throughout the world. HOCs collect in sediments due to their affinity for organic matter and other sorbents present on and within their solid matrices. There is interest in the movement of HOCs from historically contaminated, resuspended sediments to surface waters due to the connection between chemical desorption and bioavailability. Quantitatively accurate predictions of contaminant concentrations in environmental media are needed for reliable risk assessment and to develop strategies for protection of …

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Evaluating Seashore Paspalum Seed Germination And Enhancement, Erosion Abatement And Potential Use As A Vegetative Landfarm Cap, Dexter Paul Fontenot Jan 2007

Evaluating Seashore Paspalum Seed Germination And Enhancement, Erosion Abatement And Potential Use As A Vegetative Landfarm Cap, Dexter Paul Fontenot

LSU Master's Theses

Four temperatures were tested to determine the optimum temperature for seed germination of Paspalum vaginatum 'Seaspray' seed. Results indicated that Paspalum vaginatum germination percentage was greatest at 30°C. Three seed enhancement treatments were applied to Paspalum vaginatum seed to determine improvements in germination percentage and MTG of the seed. Potassium nitrate, GA, and soaking seed in distilled water yielded greater germination percentages than the dry control. Seeds subjected to enhancement treatments had significantly faster MTG rates than the dry control seeds. Seeds also had higher germination percentage with exposure to light when compared to seeds that germinated in conditions not …

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Intracellular Lipids In Bos Indicus And Box Taurus Oocytes, Casey Bryant Ballard Jan 2007

Intracellular Lipids In Bos Indicus And Box Taurus Oocytes, Casey Bryant Ballard

LSU Master's Theses

It has been proposed that Bos indicus when compared with Bos taurus embryos are more sensitive to cryopreservation procedures due to higher intracellular lipid content of the embryos. With cyropreservation of Bos indicus embryos increasing for export, it is essential to improve the viability of these cryopreserved embryos. In Experiment I, M-II oocytes from mice, pigs and cows were subjected to two different procedures to evaluate lipid content. The lipid content present in pig oocytes was significantly (P<0.05) higher when compared with mouse and cow oocytes. Pig oocytes had a lower settling point in the sucrose buoyant density gradient and higher Nile Red units, which indicated higher lipids present in the oocytes. In Experiment II, it was determined that M-II oocytes aspirated from superstimulated Brahman donors were significantly higher (P<0.05) in lipid content compared with English breed donors. The lipid content present in Brahman oocytes was higher when compared with English breeds when tested with a sucrose buoyant density gradient and Nile Red staining. In addition, donor females with higher body condition scores were significantly (P<0.05) higher in oocyte lipid content when compared with donor females of lower body condition scores. Furthermore, animal body condition scores, cholesterol and triglyceride levels prior to oocyte aspiration may be indicators of intracellular lipids in the oocytes and embryos. To our knowledge, this is the first report that evaluated intracellular lipid content of M-II oocytes of different beef breed types using a sucrose buoyant density gradient and Nile Red staining.

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Effects Of Amino Acids On The Properties Of White-Fleshed And Orange-Fleshed Beauregard Sweet Potato Starch, Stephanie Helen Lockwood Jan 2007

Effects Of Amino Acids On The Properties Of White-Fleshed And Orange-Fleshed Beauregard Sweet Potato Starch, Stephanie Helen Lockwood

LSU Master's Theses

This study assessed the effects of amino acid additives, aspartic acid, leucine, lysine, and methionine, on the pasting and thermal characteristics of white-fleshed and orange-fleshed Beauregard sweet potato starches. Also, the white-fleshed and the orange-fleshed sweet potato starches were compared for any differences in their resistant starch and crystalline properties. This study was performed using Differential Scanning Calorimetery (DSC), Rapid Visco Analysis (RVA), X-ray Diffraction (XRD), and Resistant Starch Determination. The orange-fleshed starch granules began to gelatinize at a lower temperature (56.8°C) than the white-fleshed starch (70.1°C), but the two starches needed the same amount of energy to gelatinize. Lysine …

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Culture-Independent Identification Of Gut Bacteria In Fourth-Instar Red Imported Fire Ant, Solenopsis Invicta Buren, Larvae, Albert Hon-Yu Lee Jan 2007

Culture-Independent Identification Of Gut Bacteria In Fourth-Instar Red Imported Fire Ant, Solenopsis Invicta Buren, Larvae, Albert Hon-Yu Lee

LSU Doctoral Dissertations

Red imported fire ants (RIFA), Solenopsis invicta Buren, are medical, urban, and agricultural pests from South America. Fourth-instar larvae are used by the colony to digest solid food and then regurgitate it for consumption by workers and queens. Larvae are an ideal source of investigations of obligate endosymbiotic bacteria possibly involved in nutrient distributions. I attempted to first identify what bacteria species are in the guts of larvae followed by antibiotic and microscopy work to further study their roles in the ants. The composition of the bacterial community in fire ant larvae was described with culture-independent methods utilizing 16S rDNA …

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The Effects Of Smoking Cessation On Control Of Food Intake In Postmenopausal African-American And Caucasian Women, Amanda K. Manning Jan 2007

The Effects Of Smoking Cessation On Control Of Food Intake In Postmenopausal African-American And Caucasian Women, Amanda K. Manning

LSU Master's Theses

Smoking cessation leads to greater weight gain in women than men, and older and postmenopausal women are at greater risk for weight gain than younger, premenopausal women. African-American postmenopausal women may be at the greatest risk. Weight gain after smoking cessation is primarily due to increased caloric intake. Currently, the literature regarding measurement of macronutrient intake after smoking cessation is plagued with methodological problems. The Geiselman Macronutrient Self-Selection Paradigm (MSSP) significantly and systematically varies fat across other macronutrients and the Geiselman Food Preference Questionnaire (FPQ) measures the negative feedback of satiation via pre- and postprandial hedonic ratings of foods. Fifty-five …

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Watershed-Scale Patterns Of Seaward Migration In Lentipes Concolor, A Hawaiian Stream Goby, Mark Gordon Mcrae Jan 2007

Watershed-Scale Patterns Of Seaward Migration In Lentipes Concolor, A Hawaiian Stream Goby, Mark Gordon Mcrae

LSU Doctoral Dissertations

The native stream fishes of the Hawaiian Islands are uniquely adapted to colonize and thrive in lotic habitats in this extremely isolated archipelago. Chapter 1 of this dissertation introduces the five native fishes of Hawaii's streams and describes the variety of lotic habitats they occupy. All five species have amphidromous life cycles, and, as such, their larvae must migrate to the ocean soon after hatching. Of the five species, Lentipes concolor is able to scale Hawaii’s highest waterfalls during the migration back into fresh water, and therefore inhabits the widest variety of stream types. Adult L. concolor are found a …

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Cold Adaption Behaviors Of Vibrio Vulnificus And Vibio Parahaemolyticus In Oysters, Chiung-Ta Wu Jan 2007

Cold Adaption Behaviors Of Vibrio Vulnificus And Vibio Parahaemolyticus In Oysters, Chiung-Ta Wu

LSU Master's Theses

Vibrio vulnificus is an estuarine bacterium that can cause primary septicemia as well as other serious wound infections. Vibrio parahaemolyticus is a gram-negative, halophilic bacterium that may cause gastroenteritis, diarrhea, headache, vomiting, nausea, abdominal cramps and is the leading cause of gastroenteritis in United States. Consumption of raw oysters is believed to closely relate with infection with Vibrio vulnificus and Vibrio parahaemolyticus. All strains of V. parahaemolyticus produce tlh genes and the major virulence factors of V.parahaemolyticus are the tdh and trh genes. This study was conducted to determine if Vibrio vulnificus and Vibrio parahaemolyticus clinical and environmental strains display …

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The Portrayal Of Science In Children's Television, Tristi Bercegeay Charpentier Jan 2007

The Portrayal Of Science In Children's Television, Tristi Bercegeay Charpentier

LSU Master's Theses

Scholars argue that a scientifically literate public is a requirement for a democracy. Children are watching television more today than ever before, and studies have shown that children learn academically educational content from television. The Children's Television Act of 1990 requires broadcasters to provide educational and informational content for children. This study qualitatively evaluated a sample of 38 children's television programs to obtain a description of the scientific content contained in children's television. The study yielded a large quantity of scientific content, yet the quality of the content left much to be desired. Based on the findings of this study, …

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A Horticultural Study Of Liriope And Ophiopogon: Nomenclature, Morphology, And Culture, Mary Catherine Broussard Jan 2007

A Horticultural Study Of Liriope And Ophiopogon: Nomenclature, Morphology, And Culture, Mary Catherine Broussard

LSU Doctoral Dissertations

Liriopogons are evergreen perennials with a confusing taxonomy. New cultivars are being rapidly selected and named. The landscape industry uses them extensively and they are being planted in improper sites. Morphological studies were done at Louisiana State University in Baton Rouge, Louisiana to identify cultivars by comparing plants to botanical keys. Cultural studies were done at Burden Station in Baton Rouge, Louisiana by comparing cultivars in sun and 63% shade, and by greenhouse fertilization experiments, and pruning experiments. Plants were harvested, studied, dried and mounted in the Louisiana State University Herbarium as permanent record. Of the 19 cultivars of Liriope …

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In Utero And In Vitro Sex Ratio Of Bovine Embryos And Calves Originating From The Left And Right Ovaries, Darin Alan Hylan Jan 2007

In Utero And In Vitro Sex Ratio Of Bovine Embryos And Calves Originating From The Left And Right Ovaries, Darin Alan Hylan

LSU Doctoral Dissertations

An asymmetric distribution of the sexes within the left and right uterine horns has been described in multiple polytocous, laboratory species. A series of experiments were conducted to evaluate the sex ratio (% male) of calves gestated in the left and right uterine horns, as well as the sex ratio of embryos originating from the left and right ovaries of cattle. In Experiment 1, the sex ratio of calves and fetuses gestated in the left and right uterine horns was investigated. The sex ratio of calves and fetuses gestated in the right uterine horn was significantly higher compared with the …

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Spatial Analysis Of The Preserved Wooden Architectural Remains Of Eight Late Classic Maya Salt Works In Punta Ycacos Lagoon, Toledo District, Belize, Bretton Michael Somers Jan 2007

Spatial Analysis Of The Preserved Wooden Architectural Remains Of Eight Late Classic Maya Salt Works In Punta Ycacos Lagoon, Toledo District, Belize, Bretton Michael Somers

LSU Doctoral Dissertations

This dissertation examined the remains of wooden architecture at eight Late Classic Maya sites found beneath the surface of Punta Ycacos Lagoon in southern Belize. The presence of briquetage on the surface and embedded among the clusters of wooden architectural features implies association with salt production activity. This research is significant in that the preservation of wooden structures at the salt works has not previously been reported for the ancient Maya. This dissertation includes a detailed discussion of documented evidence of salt production throughout Mesoamerica from archaeological, historical and modern examples. The discussion also addressed the evidence of Maya wooden …

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The Land - A New Topographic Study Of Home, Jacob Croft Botter Jan 2007

The Land - A New Topographic Study Of Home, Jacob Croft Botter

LSU Master's Theses

The photographs in my thesis sit between these two movements, leaning more towards the contemporary ideas that were generated by the New Topographic Movement. On one hand, they are similar to the traditional photographs of the landscape, in the way they depict a place of organic beauty. They present a panorama that serves as a poignant reminder of the natural world that demands our respect and appreciation for what it has to offer. At the same time, this cannon of imagery contains man, or a visual representation of man, and his efforts. My pictures are not an outsider's observation of …

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The Agriculturalists Of The Poole-Rose Ossuary: A Study Of The Femora And Tibiae, Melissa L. Moreno Jan 2007

The Agriculturalists Of The Poole-Rose Ossuary: A Study Of The Femora And Tibiae, Melissa L. Moreno

LSU Master's Theses

Dr. Heather McKillop of Louisiana State University was asked by the Alderville First Nation of Ontario in 1990 to excavate the Poole-Rose ossuary in 1990. This mass burial consisted of hundreds of mixed disarticulated and de-fleshed individuals as well as three articulated individuals laid in flexed positions. No artifacts were discovered with the bodies. Due to the absence of stratified soil layers from different periods, McKillop estimated the ossuary occurred during one burial event- “The Feast of the Dead.” Radiocarbon dating found the ossuary to be from A.D. 1550 ± 50 years (McKillop and Jackson 1991). I estimated sex according …

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Development Of A Biomass Transducer For Automated Microalgal Bioreactors, Amar Shivaram Hegde Jan 2007

Development Of A Biomass Transducer For Automated Microalgal Bioreactors, Amar Shivaram Hegde

LSU Master's Theses

A highly sensitive miniaturized biomass transducer is necessary for continuous and reliable monitoring of the microalgal biomass in a computer controlled, automated microalgal bioreactor. Previous known methods to determine microalgal biomass applicable in these bioreactors are based on single wavelength turbidimetric or fluorescence. The objectives of this research were to (1) determine the light absorption characteristics of some commercially applicable microalgae in the electromagnetic wavelength range of 200-800 nm (2) design and construct a new miniaturized biomass transducer (3) process the transducer output to correlate with the biomass. Wavelength sensitivity analysis was conducted on the commercially important microalgal species - …

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The Experiences Of Refugee Youth From The Conflicts In The Sudan: A Collective Case Study, Michele Kelly Jan 2007

The Experiences Of Refugee Youth From The Conflicts In The Sudan: A Collective Case Study, Michele Kelly

LSU Doctoral Dissertations

The purpose of this qualitative study was to explore the role of familial protective factors in moderating the relationship between risk and resilience in Sudanese refugee youth exposed to political violence. Interviews, direct observations, and physical artifacts were the sources of data. Eight “Lost Boys” participated in the study, providing narratives of their experiences of the Sudanese civil wars. They also answered questions posed about the role of familial protective factors in moderating the relationship between risk and resilience. The interviews were recorded on audiotape and then transcribed. Data consisted of the transcripts and field notes of processes and observations. …

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Effects Of Pre- And Postharvest Calcium Supplementation On Longevity Of Sunflower (Helianthus Annuus Cv. Superior Sunset), Sergio J. Sosa Nan Jan 2007

Effects Of Pre- And Postharvest Calcium Supplementation On Longevity Of Sunflower (Helianthus Annuus Cv. Superior Sunset), Sergio J. Sosa Nan

LSU Master's Theses

The sunflower is one of the most important specialty cut flowers produced. Sunflowers have a short and variable postharvest longevity that is dependent upon cultivar. Research in postharvest physiology of cut flowers indicates that calcium (Ca) may be involved in delaying flower senescence by postponing cell membrane degradation. Cut flowers with intact cell membrane structure and function maintain their water balance and last longer. This study was developed to determine the effects of Ca supplementation on longevity of fresh cut sunflowers. The cultivar ‘Superior Sunset’ was used in this study; the sources of Ca were Ca(NO3)2, CaCl2 or a chelated …

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Evaluation Of Harvesting Disturbance And Establishment Practices On Early Height Growth Of Loblolly Pine (Pinus Taeda L.), Shanna Marie Mccarty Jan 2007

Evaluation Of Harvesting Disturbance And Establishment Practices On Early Height Growth Of Loblolly Pine (Pinus Taeda L.), Shanna Marie Mccarty

LSU Master's Theses

Land for forest plantations is declining while demand for forest products is increasing, creating concern over sustainable forest management. Maintenance of site productivity is fundamental to forest sustainability, and an assessment of cumulative height growth is a useful index of productivity. Loblolly pine height data were used from four research plantations installed by the project Cooperative Research in Sustainable Silviculture and Soil Productivity from Texas to Georgia. The sites vary in soil characteristics, management history, nutrient status at time of planting, and age (from 4 to 9 years). Each site is a randomized complete block design with a factorial treatment …

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Establishment Of Cecidochares Connexa (Diptera: Tephritidae) In Guam And Its Effect On The Growth Of Chromolaena Odorata (Asteraceae), Z. T. Cruz, R. Muniappan, G. V.P. Reddy Nov 2006

Establishment Of Cecidochares Connexa (Diptera: Tephritidae) In Guam And Its Effect On The Growth Of Chromolaena Odorata (Asteraceae), Z. T. Cruz, R. Muniappan, G. V.P. Reddy

Faculty Publications

The gall fly Cecidochares connexa (Macquart) (Diptera: Tephritidae) was imported from Indone ia into Guam in 1998. It was field-established at one location in north central Guam, and its spatial and temporal spread in Guam was monitored. The biology of the gall fly is presented. No relationship between the number of larvae in a gall and the dimensions of the gall (length and width) existed. Three pupae per gall was the most frequent density with a range of 1-7. The sex ratio of flies emerging from galls was 1:1 irrespective of number of larvae per gall. C. connexa-induced galls established …

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