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2011

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Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, Maryam Eshratifar, Farideh Attar, Kazem Mahdigholi Jan 2011

Micromorphological Studies On Nutlet And Leaf Indumentum Of Genus Teucrium L. (Lamiaceae) In Iran, Maryam Eshratifar, Farideh Attar, Kazem Mahdigholi

Turkish Journal of Botany

The micromorphology of leaf indumentum and nutlet surface of 12 species belonging to the 6 sections of the genus Teucrium L. was studied by scanning electron microscope (SEM). Eight types of trichomes are identified including unbranched unicellular trichomes, unbranched multicellular trichomes, sessile glands, subsessile glands, stalked-multicellular glands long clavate glandular trichomes (with 3-5 cells), trichomes with large thin-wall, trichomes with non-micropapillate basal cell, which are the most general types on the adaxial side of the leaves, and branched trichome with long axis is the exclusive type and present in Teucrium polium L. Thus, trichomes can be used as a distinctive …

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In Vitro Propagation Of Endemic And Endangered Muscari Mirum From Different Explant Types, Ayşe Gül Nasircilar, Semra Mi̇ri̇ci̇, Ümmü Özgül Karagüzel, Özkan Eren, İbrahi̇m Baktir Jan 2011

In Vitro Propagation Of Endemic And Endangered Muscari Mirum From Different Explant Types, Ayşe Gül Nasircilar, Semra Mi̇ri̇ci̇, Ümmü Özgül Karagüzel, Özkan Eren, İbrahi̇m Baktir

Turkish Journal of Botany

A protocol for in vitro propagation of Muscari mirum Speta, an endangered geophyte of the family Hyacinthaceae, was developed. Bulb scale, scape, leaf, and immature embryo explants were cultured on different nutrient media compositions supplemented with various concentrations of plant growth regulators (BAP, NAA, TDZ, Picloram, 2,4-D). Scape explants produced callus only. Higher numbers of bulblets were obtained from bulb scale explants than embryo explants. The highest percentage of the bulb formation (23.50 per explant) were obtained from bulb scale explants consisting of 4 scale segments cultured on Murashige and Skoog (MS) medium supplemented with 4 mg L^{-1} 6-benzylaminopurine (BAP) …

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Bark Anatomy Of Quercus Cerris L. Var. Cerris From Turkey, Ali̇ Umut Şen, Teresa Quilhó, Helena Pereira Jan 2011

Bark Anatomy Of Quercus Cerris L. Var. Cerris From Turkey, Ali̇ Umut Şen, Teresa Quilhó, Helena Pereira

Turkish Journal of Botany

Quercus cerris L. var. cerris has a conspicuous bark which is generally thicker than that of other Quercus L. species in Turkey. The present study aimed to provide detailed anatomical characterisation of the bark of this species, which is necessary to assess its potential. The anatomical studies were conducted on the bark samples of nine 70- to 80-year-old trees growing in 3 sites of Andırın district from Kahramanmaraş province in Turkey. For microscopic observation transverse and longitudinal sections were prepared and individual specimens were taken for maceration. The bark is composed of phloem, periderm, and a very substantial rhytidome. The …

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Cicer Uludereensis Dönmez: A New Species Of Cicer (Chickpea) (Fabaceae) From Around The Fertile Crescent, Se Turkey, Ali̇ Aslan Dönmez Jan 2011

Cicer Uludereensis Dönmez: A New Species Of Cicer (Chickpea) (Fabaceae) From Around The Fertile Crescent, Se Turkey, Ali̇ Aslan Dönmez

Turkish Journal of Botany

The genus Cicer L. includes an important crop plant, chickpea, which has been used as a protein source since prehistoric times. Specimens of a native Cicer have been collected and described from south-east Turkey. This new species, Cicer uludereensis Dönmez sp. nova, is distinct from a closely allied species, Cicer isauricum P.H.Davis, by its fine and more numerous teeth per leaflet, larger stipules, and narrower fruit with almost smooth seed surface. An illustration and a distribution map of the new species are provided and observations on the population are discussed.

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Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, Ebru Doğan Güner, Hayri̇ Duman, Nur Münevver Pinar Jan 2011

Pollen Morphology Of The Genus Seseli L. (Umbelliferae) In Turkey, Ebru Doğan Güner, Hayri̇ Duman, Nur Münevver Pinar

Turkish Journal of Botany

Morphological features of pollen of 11 Turkish taxa belonging to the complex genus Seseli L. were examined using light and scanning electron microscopy. On the basis of exine sculpturing, 3 main types were recognised in Seseli: Type 1, rugulate at equator, psilate-perforate at pole; Type 2, striate-reticulate at equator, rugulate at pole; and Type 3, rugulate at equator, striate at pole. The study revealed that palynological characters display taxonomic significance in the genus.

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Micropropagation And Root Culture Of Turkish Endemic Astragalus Chrysochlorus (Leguminosae), Semra Hasançebi̇, Nesli̇han Turgut Kara, Özgür Çakir, Şule Ari Jan 2011

Micropropagation And Root Culture Of Turkish Endemic Astragalus Chrysochlorus (Leguminosae), Semra Hasançebi̇, Nesli̇han Turgut Kara, Özgür Çakir, Şule Ari

Turkish Journal of Botany

Efficient micropropagation and root culture protocols were developed for the endemic Astragalus chrysochlorus Boiss. & Kotschy. A high frequency of shoot formation (100%) and maximum multiplication (13 shoots per hypocotyl explant) were achieved on Murashige and Skoog (MS) media supplemented with 0.5 mg/L trans-Zeatin riboside (ZR). By using single regenerated hypocotyl explants, rooting was achieved at a rate of 93% on MS medium containing 2% sucrose without growth regulators. High frequency callus initiation and growth were achieved when single hypocotyl explants were inoculated on MS medium supplemented with 0.5 mg/L 2,4-Dichlorophenoxyacetic acid. Plant regeneration through indirect organogenesis was achieved on …

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The Effect Of In Vitro Competition On Shoot Regeneration From Hypocotyl Explants Of Linum Usitatissimum, Mustafa Yildiz, Çağlayan Sağlik, Cansu Telci̇ Kahramanoğullari, Emi̇ne Gülden Erkiliç Jan 2011

The Effect Of In Vitro Competition On Shoot Regeneration From Hypocotyl Explants Of Linum Usitatissimum, Mustafa Yildiz, Çağlayan Sağlik, Cansu Telci̇ Kahramanoğullari, Emi̇ne Gülden Erkiliç

Turkish Journal of Botany

This study was carried out to investigate the relationship between in vitro competition and stress, and their effects on tissue culture response of Linum usitatissimum L. hypocotyl explants. Competition among explants was achieved by varying the spacing among the explants cultured. Four different culture spacing distances were used: 0.5, 1.0, 1.5, and 2.0 cm. Six weeks after culture initiation, hypocotyl fresh and dry weights, shoot regeneration percentage, shoot number per hypocotyl, regenerated shoot length, total shoot number per petri dish, and total chlorophyll content were recorded. The results showed that encouraging competition among explants by decreasing spacing among them from …

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New Ascomycete Records For The Macrofungi Of Turkey, Hakan Alli, Mustafa Işiloğlu, Mehmet Hali̇l Solak Jan 2011

New Ascomycete Records For The Macrofungi Of Turkey, Hakan Alli, Mustafa Işiloğlu, Mehmet Hali̇l Solak

Turkish Journal of Botany

Anthracobia melaloma, Scutellinia barlae (Pyronemataceae), and Pseudoplectania vogesiaca (Sarcosomataceae) ascomycetous members of macrofungi collected from Muğla and Antalya provinces are recorded for the first time from Turkey. Anthracobia and Pseudoplectania are also new records at genus level.

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Rare And Endemic Species: Why Are They Prone To Extinction?, Kani̇ Işik Jan 2011

Rare And Endemic Species: Why Are They Prone To Extinction?, Kani̇ Işik

Turkish Journal of Botany

A species is considered to be "rare" if it exhibits any one of the following attributes: (1) naturally occurs in a narrow geographical area, (2) occupies only one or a few specialised habitats, (3) forms only small population(s) in its range. An "endemic" species, however, grows naturally in a single geographical area, the size of which could be either narrow or relatively large. Not all endemic species are rare, just as not all rare species must necessarily be endemic. Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) …

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The Effect Of Thidiazuron On The In Vitro Shoot Development Of Endemic Astragalus Cariensis In Turkey, Semi̇ha Eri̇şen, Emi̇ne Atalay, Mustafa Yorgancilar Jan 2011

The Effect Of Thidiazuron On The In Vitro Shoot Development Of Endemic Astragalus Cariensis In Turkey, Semi̇ha Eri̇şen, Emi̇ne Atalay, Mustafa Yorgancilar

Turkish Journal of Botany

Thidiazuron (TDZ) is a cytokinin-like substance that has often been used for shoot regeneration in recent years. We observed the effect of TDZ on callus formation and shoot regeneration from leaf and petiole explants of the endemic species Astragalus cariensis Boiss. Explants were cultured on Murashige and Skoog (MS) media including TDZ (in concentrations of 0.2, 0.4, or 0.6 mg/L) or in combination with \alpha-naphthaleneacetic acid (NAA) (in concentrations of 0.2 or 1.0 mg/L). Significant variations in the frequency of callus formation and the morphogenesis of the callus were obtained depending on the explant type. Petiole explant was determined to …

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Peer Relationships: Links Between Victimization, Participation, Depressive Symptoms And Achievement In The Classroom, Tiffany R. Murray Sydzyik Jan 2011

Peer Relationships: Links Between Victimization, Participation, Depressive Symptoms And Achievement In The Classroom, Tiffany R. Murray Sydzyik

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This study examined the relationship between forms of victimization on participation, achievement, and depressive symptoms. Participation was hypothesized to mediate the link between victimization and achievement and internalizing symptoms such as depression. Two forms of victimization (overt and relational) were hypothesized to predict participation. Participation was also hypothesized to predict achievement and depression. Conducting a model estimation using structural equations modeling (SEM) showed that overt victimization had a significant negative relationship with participation, which means that for example, as overt victimization rates were higher, participation tended to be lower. These results also indicated that participation and achievement had a significant …

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Returning Attention To Policy Content In Diffusion Study, John M. Fulwider Jan 2011

Returning Attention To Policy Content In Diffusion Study, John M. Fulwider

Department of Political Science: Dissertations, Theses, and Student Research

Policy diffusion research pays virtually no attention to policy content. Yet we should expect content to shape the adoption of any policy--this is what legislators and policy makers, after all, fight about. Thus the extent and speed of diffusion likely critically depend on policy content, which the current literature virtually ignores. This dissertation shows how we can better understand policy diffusion by taking policy content seriously. Paying attention to policy content, including how it is debated and understood by legislators, has immediate payoffs in the sense that two literatures largely ignored until now by diffusion researchers-- policy typologies and policy …

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River Otter (Lontra Canadensis) Use Of Phragmites Australis And Density Estimation Using Genetic Techniques, Amy R. Williams Jan 2011

River Otter (Lontra Canadensis) Use Of Phragmites Australis And Density Estimation Using Genetic Techniques, Amy R. Williams

School of Natural Resources: Dissertations, Theses, and Student Research

River otters were extirpated in Nebraska in the early 1900’s. In 1986 Nebraska Game and Parks Commission began reintroducing otters. In support of developing an otter management plan, I conducted research on two aspects of otter ecology in Nebraska. First, I examined otter use of habitats dominated by the non–native aquatic plant, Phragmites australis, in the Big Bend reach of the Platte River. Sixteen otters were trapped, radio–tagged, and tracked between 2006 and 2009. I identified 517 den/resting locations, 127 of which were unique locations. I compared den/resting site habitat use to availability to determine if otters were using …

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The Recovery Of Cognitive And Social Cognitive Functioning In Response To Social Cognition Interaction Training Administered In Community Settings: A Longitudinal Study, Lena Reddy Jan 2011

The Recovery Of Cognitive And Social Cognitive Functioning In Response To Social Cognition Interaction Training Administered In Community Settings: A Longitudinal Study, Lena Reddy

Department of Psychology: Dissertations, Theses, and Student Research

Psychosocial rehabilitation for persons with Serious Mental Illness (SMI) encompasses recovery of functioning in a broad array of domains, including neurocognitive, social cognitive, interpersonal, occupational, and self-care abilities. There is extensive evidence that improvements in these domains are possible as a result of targeted interventions, and that these improvements may generalize to other areas of daily functioning. The current study explored rehabilitative change over time among adults with SMI that were attending outpatient day centers. Social Cognition and Interaction Training (SCIT), a cognitive-behavioral skills-training modality, was implemented during the time period in which the data was collected. Forty adults participated …

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Journal Impact Factor, Scott H. Church Jan 2011

Journal Impact Factor, Scott H. Church

Department of Communication Studies: Dissertations, Theses, and Student Research

In a recent issue of Human Communication Research, Thomas Hugh Feeley notes, “journal impact rankings provide objective data for tenure, promotion, and, possibly, grant review committees on the quality of scholars’ work.” Though the metric is widely regarded as the conventional measure to assess the influence of a journal in both the social and physical sciences, many doubts regarding its effectiveness have been raised. This essay assesses the effectiveness of the Journal Impact Factor (JIF) as a scholarly metric. After first considering the metric's history and developing a working definition of JIF (part one), next I delineate its strengths and …

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Mechanisms Of Decreased Cholesterol Absorption Mediated By Phytosterols In The Intestinal Lumen, Andrew W. Brown Jan 2011

Mechanisms Of Decreased Cholesterol Absorption Mediated By Phytosterols In The Intestinal Lumen, Andrew W. Brown

Department of Nutrition and Health Sciences: Dissertations, Theses, and Student Research

Phytosterols and their fatty acyl esters have been known for decades to lower LDL cholesterol, making them powerful nutraceuticals in lowering cardiovascular disease risk. The mechanisms by which phytosterols lower cholesterol, though, have been incompletely characterized. Three studies were executed to examine three aspects of cholesterol and phytosterol interactions in the intestinal lumen. In the first study, the ability of pancreatic cholesterol esterase to hydrolyze phytosterol esters was examined. Pancreatic cholesterol esterase hydrolyzed phytosterol esters, but the rate of hydrolysis proved sensitive to the structures of both the sterol and ester components. In the second study, cholesterol micellarization was challenged …

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I, An Improved Procedure For Alkene Ozonolysis. Ii, Exploring A New Structural Paradigm For Peroxide Antimalarials., Charles Edward Schiaffo Jan 2011

I, An Improved Procedure For Alkene Ozonolysis. Ii, Exploring A New Structural Paradigm For Peroxide Antimalarials., Charles Edward Schiaffo

Department of Chemistry: Dissertations, Theses, and Student Research

The use of ozone for the transformation of alkenes to carbonyls has been well established. The reaction of ozone with alkenes in this fashion generates either a 1,2,4-trioxolane (ozonide) or a hydroperoxyacetal, either of which must undergo a separate reduction step to provide the desired carbonyl compound. There is considerable interest in being able to perform a reductive ozonolysis to directly provide the carbonyl. Previous reports from the Dussault lab have shown that amine N-oxides are able to perform a reductive ozonolysis. In the course of efforts to expand this reaction to other oxyanions it was realized that water was …

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Fabrication And Catalytic Property Of Cerium Oxide Nanomaterials, Keren Jiang Jan 2011

Fabrication And Catalytic Property Of Cerium Oxide Nanomaterials, Keren Jiang

Department of Chemistry: Dissertations, Theses, and Student Research

Cerium oxide, or ceria (CeOx: x = 1.5 to 2), has been widely used as a heterogeneous catalyst. Ceria has several properties make it high catalytic active: the fluctuating valence of cerium, the high oxygen storage capacity and high oxygen mobility in the nonstoichiometric ceria. With the high abundance of cerium on earth crust, ceria is a highly effective alternative of the noble metal catalysts. Research has been focused on designing nanostructured ceria and ceria related materials in recent years. The catalytic activity of ceria can be enhanced by the nanoscale effect which can be applied for various …

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Higher Education Professional Pilot Faculty Qualifications: Are The Stakes Rising?, David C. Ison Jan 2011

Higher Education Professional Pilot Faculty Qualifications: Are The Stakes Rising?, David C. Ison

Applied Aerospace Science

"Within the aviation research literature there have been numerous studies that have either included or focused upon the attributes of associated faculty. Although such studies provide compelling data about these individuals, trends or changes in requirements for faculty are not easily identified within the findings. Of particular concern is the fact that credentialization, the escalation of required educational attainment and certification, has been permeating throughout higher education in the United States. It is of interest to see if such pressures are also infiltrating the collegiate aviation environment. Further, data about trends can help future faculty prepare for possible employment, it …

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Variation In Tree Mortality And Regeneration Affect Forest Carbon Recovery Following Fuel Treatments And Wildfire, Christopher Hale Carlson Jan 2011

Variation In Tree Mortality And Regeneration Affect Forest Carbon Recovery Following Fuel Treatments And Wildfire, Christopher Hale Carlson

Graduate Student Theses, Dissertations, & Professional Papers

Forest fuel treatments such as thinning and burning have been proposed as tools to stabilize carbon stocks in fire-prone forests in the Western U.S. Although treatments immediately reduce forest carbon storage, losses may be paid back over the long-term if treatment sufficiently reduces future wildfire severity. Less severe wildfire produces fewer direct and indirect carbon emissions, and severely burned stands may be more susceptible to deforestation. Although fire severity and post-fire tree regeneration have been indicated as important influences on long-term carbon dynamics, it remains unclear how natural variability in these processes might affect the ability of fuel treatments to …

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Winter Habitat Use By Mule Deer In Idaho And Montana, Sonja M. Smith Jan 2011

Winter Habitat Use By Mule Deer In Idaho And Montana, Sonja M. Smith

Graduate Student Theses, Dissertations, & Professional Papers

Winter survival for species such as Rocky Mountain mule deer (Odocoileus hemionus hemionus) depends on an energy conservation strategy where they use habitats at lower elevations and on south facing slopes with adequate thermal or canopy cover. However, not all mule deer habitats are equivalent in components or weather conditions, which contribute to differences in habitat use patterns and behavior among wintering populations. We examined winter habitat use by mule deer on the East Front of the Rocky Mountains, Montana and Warm Springs and Sink Creek, east-central Idaho to determine how weather and vegetation affect habitat use in different winter …

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Climate Change: A New Realm Of Tort Litigation, And How To Recover When The Litigation Heats Up, Lauren Case Jan 2011

Climate Change: A New Realm Of Tort Litigation, And How To Recover When The Litigation Heats Up, Lauren Case

Santa Clara Law Review

No abstract provided.

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Physical Takings, Regulatory Takings, And Water Rights, Josh Patashnik Jan 2011

Physical Takings, Regulatory Takings, And Water Rights, Josh Patashnik

Santa Clara Law Review

No abstract provided.

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Occupational Exposure To Trichloroethylene And Cancer Risk For Workers At The Paducah Gaseous Diffusion Plant, Debra E. Bahr, Timothy E. Aldrich, Dazar Seidu, Gail M. Brion, David J. Tollerud Jan 2011

Occupational Exposure To Trichloroethylene And Cancer Risk For Workers At The Paducah Gaseous Diffusion Plant, Debra E. Bahr, Timothy E. Aldrich, Dazar Seidu, Gail M. Brion, David J. Tollerud

ETSU Faculty Works

Objective: The Paducah Gaseous Diffusion Plant (PGDP) became operational in 1952; it is located in the western part of Kentucky. We conducted a mortality study for adverse health effects that workers may have suffered while working at the plant, including exposures to chemicals. Materials and Methods: We studied a cohort of 6820 workers at the PGDP for the period 1953 to 2003; there were a total of 1672 deaths to cohort members. Trichloroethylene (TCE) is a specific concern for this workforce; exposure to TCE occurred primarily in departments that clean the process equipment. The Life Table Analysis System (LTAS) program …

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An Examination Of Compressed Natural Gas For Use In Municipal Fleets: Would Cng Work For Lexington, Ky?, Robert Kahne Jan 2011

An Examination Of Compressed Natural Gas For Use In Municipal Fleets: Would Cng Work For Lexington, Ky?, Robert Kahne

MPA/MPP/MPFM Capstone Projects

Compressed Natural Gas (CNG) is an alternative fuel source which could replace diesel as a fuel for municipal fleets. This paper seeks to examine the viability of CNG and its potential to power Lexington-Fayette Urban County Government’s fleet of waste removal trucks. This paper takes into account financial and environmental factors in determining CNG’s potential, but gives priority to financial considerations. The results of this analysis are mixed—under some future scenarios, compressed natural gas would be a favorable option for the fleet, but given other future scenarios, CNG would not be viable. In terms of environmental benefits, a switch to …

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Examining Kentucky Public Schools: Gender Differences In An Index Measure Of Accountability For Academic Standards, Khin Thazin Myint Jan 2011

Examining Kentucky Public Schools: Gender Differences In An Index Measure Of Accountability For Academic Standards, Khin Thazin Myint

MPA/MPP/MPFM Capstone Projects

The Kentucky public education system has made progress over the past 20 years after a number of reforms beginning in 1990. A stated goal of these reforms has been not only to improve the overall performance of students in a school, but to also ensure that no student groups be allowed to fall behind. To accomplish this, the state has adopted and implemented goals that are shared with those of the federal No Child Left Behind Act, including school accountability and a goal of proficiency for all students by the year 2014. However the most recent analysis of three statewide …

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Phenology Of Stable Fly (Diptera: Muscidae) Larvae In Round Bale Hay Feeding Sites In Eastern Nebraska, David B. Taylor, Dennis R. Berkebile Jan 2011

Phenology Of Stable Fly (Diptera: Muscidae) Larvae In Round Bale Hay Feeding Sites In Eastern Nebraska, David B. Taylor, Dennis R. Berkebile

Department of Entomology: Faculty Publications

The temporal and spatial patterns of adult stable fly, Stomoxys calcitrans (L.), emergence from six sites where large round baled hay had been provided to pasture cattle as winter feed were studied using emergence traps. The substrate at these sites, consisting of waste hay mixed with bovine manure and urine, provided an excellent developmental habitat for immature stable flies. Stable flies were the most frequently collected fly emerging from these sites with a yearly average of 1,581 emerging per square meter. Stable fly emergence from these sites began in early May (235 annual accumulated Day-Degree 10°C [DD10]), peaked …

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Undergraduate Catalog, Georgia Southern University Jan 2011

Undergraduate Catalog, Georgia Southern University

Undergraduate & Graduate Catalogs

No abstract provided.

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Dose–Response Relationships Of Clothianidin, Imidacloprid, And Thiamethoxam To Blissus Occiduus (Hemiptera: Blissidae), M. D. Stamm, Frederick P. Baxendale, Tiffany Heng-Moss, Blair D. Siegfried, Erin E. Blankenship, Roch E. Gaussoin Jan 2011

Dose–Response Relationships Of Clothianidin, Imidacloprid, And Thiamethoxam To Blissus Occiduus (Hemiptera: Blissidae), M. D. Stamm, Frederick P. Baxendale, Tiffany Heng-Moss, Blair D. Siegfried, Erin E. Blankenship, Roch E. Gaussoin

Department of Entomology: Faculty Publications

The western chinch bug, Blissus occiduus Barber (Hemiptera: Blissidae), has emerged as a serious pest of buffalograss, Buchloë dactyloides (Nuttall) Engelmann. In general, neonicotinoid insecticides effectively control a variety of turfgrass insects, particularly phloem-feeding pests. However, because of well documented inconsistencies in control, these compounds are generally not recommended for chinch bugs. This study was designed to document the contact and systemic toxicity of three neonicotinoid insecticides (clothianidin, imidacloprid, and thiamethoxam) to B. occiduus. In contact bioassays, thiamethoxam was ~20-fold less toxic than clothianidin or imidacloprid to B. occiduus nymphs and three-fold more toxic to adults. In adult systemic …

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Genetic Variation And Inheritance Of Diapause Induction In Two Distinct Voltine Ecotypes Of Ostrinia Nubilalis (Lepidoptera: Crambidae), Cengis Ikten, Steven R. Skoda, Thomas E. Hunt, Jaime Molina-Ochoa, John E. Foster Jan 2011

Genetic Variation And Inheritance Of Diapause Induction In Two Distinct Voltine Ecotypes Of Ostrinia Nubilalis (Lepidoptera: Crambidae), Cengis Ikten, Steven R. Skoda, Thomas E. Hunt, Jaime Molina-Ochoa, John E. Foster

Department of Entomology: Faculty Publications

European corn borer, Ostrinia nubilalis (Hübner) (Lepidoptera: Crambidae), displays a larval diapause in response to short photoperiods and is adapted to a variety of local conditions throughout North America. Hence, the effective photoperiod inducing larval diapause will differ among geographic ecotypes. This study considers the inheritance of photoperiodic larval diapause induction by hybridization and backcrossing two latitudinally distinct ecotypes of the European corn borer collected between 41° N, 96° W and 48° N, 96° W and under a range of photoperiods representative of their respective locations: from 14:10 to 16:8 (L:D) h. The ecotype adapted to a bivoltine habitat (southeastern …

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