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Pelargonium peltatum, ivy geranium, experiences foliar bleaching at temperatures exceeding 30° C. Contessa™ Red (heat tolerant) and Temprano™ Lavender (heat susceptible) were compared. Established plants underwent temperature treatments of 15/20° C or 25/30° C night/day with moisture treatments of 80% or 30% substrate volumetric water content (VWC). Photosynthesis, leaf greenness and growth data were collected at days 0, 7 and 11. No differences in photosynthetic rate nor a decrease in greenness in developed leaves occured in either cultivar due to high temperature or drought. Contessa™ Red had overall greater growth and leaf greenness than Temprano™ Lavender. Greenness and growth increased similarly for both cultivars at 80% VWC. Any decrease in foliar bleaching due to drought was likely due to a decrease in growth. A second study using Temprano™ Lavender indicated foliar bleaching occurs in newly emerging, developing leaves.

Master of Science / Department of Horticulture, Forestry, and Recreation Resources / Kimberly A. Williams / Ivy geranium (Pelargonium peltatum L’Herr ex. Ait.) and tomato (Solanum lycopersicum L.) are two economically important greenhouse crops known to be affected by non-pathogenic lesions on leaf tissues. These physiological disorders are often termed edema (oedema) or intumescences, but several other names have been used including enations, non-pathogenic galls or tumors, and neoplasms. These lesions, characterized by small protrusions on leaf tissues that become necrotic over time, are considered to be the result of environmental factors. Our research focused on determining what environmental factors affect these disorders on ivy geranium and tomato. The physiological disorder of ivy geranium is thought to be the result of water uptake exceeding transpiration, resulting in a build-up of water and solutes in leaf tissue that results in the blister-like protrusions in the epidermal layer. Current convention suggests that susceptible plants be grown in an environment that promotes transpiration with low humidity and infrequent watering. Over four experiments, we evaluated the effects of four root medium water contents, five rates of supplemental calcium application and two vapor pressure deficit (VPD) environments on three cultivars of ivy geranium. Our results indicate that high root medium water contents do not increase the incidence of edema on ivy geranium, but increase overall plant growth. Supplemental calcium had no affect on edema or growth, while our VPD results were inconclusive. These results suggest that current convention regarding cultural practices that abate the disorder be revisited. In tomato var. hirsutum ‘Maxifort’, the physiological disorder is characterized by individual epidermal cells swelling, which is unlike the disorder in ivy geranium where solutes build up across a group of epidermal cells. The environmental factors we focused on were two root medium water contents and supplemental UVB light. Our results suggest that root medium water content may play a role in development of tomato intumescences based on visual observation, and UVB light supplementation helps prevent the lesions from forming.

Thesis advisor: Karen Arnold / Currently, there are nearly a million high-achieving, low-income students in the United States. In the nation's most selective institutions of higher education, students from low-income families have been persistently under-represented. Elite colleges, in particular, have only recently begun admitting low-income students in large numbers, a result of full need-based financial aid programs that began in the early 2000s as a way to attract a more socioeconomically diverse student body. This hermeneutic phenomenological study describes the lived experiences of these undergraduates and how they navigated a college environment historically reserved for wealthy students. Although participants initially expected to feel marginalized due to unfounded concerns of elitism, they formed friendships both within and across socioeconomic class divisions and described feeling integrated within the elite college. Participants developed self-protective narratives to compensate for their low-income backgrounds and employed strategies to make up for poor high-school preparation. Participants were grateful for the opportunity to attend an elite college and were proud and relatively forthcoming about their financial aid status because they considered it a reward for their intellectual ability. Three main conclusions derive from the findings of this research: Low-income students' tendency to make a distinction between socioeconomic and financial aid status; the notion of a new cultural capital hierarchy for high-achieving, low-income students within an elite college setting; and, a specific application of Bronfenbrenner's ecological developmental model for this niche population. The results of this study indicate that high-achieving, low-income students are flourishing in full need-based financial aid programs as a result of their own resilience and intellectual capital. Participants' experiences indicate that this population of undergraduates faces unique challenges and requires specific support services to equalize their opportunities vis-à-vis higher-income peers. From these findings, implications for colleges and universities and full need-based financial aid programs are discussed. / Thesis (PhD) — Boston College, 2011. / Submitted to: Boston College. Lynch School of Education. / Discipline: Educational Administration and Higher Education.

As human development occurs in forested areas, forests become fragmented into small islands in a matrix of urban land uses. This study examined the effect of surrounding urban land uses on the native and exotic plant species found on the edges of forest fragments in the Portland, OR metropolitan region.

Education experts' predictions of increasing demand for vocational and technical education presents a unique opportunity for technical colleges to position themselves to take advantage of this trend. However, it also places a great deal of pressure on the leaders of those colleges to aggressively develop and manage institutional image in order to remain competitive.The leadership of Ivy Tech State College (formerly Indiana Vocational Technical College) realized in the early 1990s that they must institutionalize marketing and image management to remain in the forefront of technical education in Indiana. To counter public confusion about Ivy Tech that resulted from 30 years of decentralized marketing and advertising, the college changed its name, developed a new logo, and launched its first statewide advertising program to increase public awareness of the institution and to improve its public image.The primary purpose of this study was to determine and assess the current institutional image of Ivy Tech and what image the college should project, all from an internal perspective. The hypothesis asserted in this study is that a difference exists between what internal publics think Ivy Tech's current image is and what they desire the college's image to be.In conducting the study, 90 representatives of Ivy Tech's internal constituencies were asked to sort two sets of 91 statements. One set of statements indicated the image they believe the public has of Ivy Tech, while the other set indicated the image they believe the college should project. Each statement was ranked on an eleven-point most agree/most disagree scale. The completion rate for both sets of sorts was 74 percent (67 of 91). Responses were computer tabulated using the QMETHOD factor analysis program.The first sort, which dealt with what Ivy Tech's internal publics think the college's current image is, revealed a two-factor solution. Factor One is referred to in the study as the Realists. Factor Two is referred to in the study as the Boosters. The two-factor solution indicated that a difference does exist among the college's internal publics regarding what they believe Ivy Tech's current image is.Factor One, the Realists, believe the college has an image problem. This group believes the public has, at worst, a negative image of Ivy Tech, and at best, a lack of understanding and/or knowledge of the college. Factor Two, the Boosters, believe Ivy Tech has a favorable image with the public and the reputation of a quality institution.The second sort, which dealt with the image Ivy Tech's internal constituencies think the college should project, revealed a one-factor solution. The one-factor solution indicated consensus among internal publics relative to the image Ivy Tech should project.Responses to both Q sorts indicated five basic messages that should be conveyed specifically and clearly to the public. They are:1. Ivy Tech is a real college.2. Ivy Tech has a wide variety of educational programs.3. Ivy Tech provides a quality education that prepares graduates for the jobs that will be in demand in the next century.4. Ivy Tech instructors are as knowledgeable asinstructors at other institutions.5. Ivy Tech graduates can and do continue theireducations at four-year institutions. / Department of Journalism

This thesis examines the invasiveness of English ivy (Hedera helix L..: Araliaceae). an exotic horticultural species, in 14 near-urban parks in Greater Victoria. British Columbia. Using descriptive notes from field observations, the overall invasiveness of H. helix is assessed in each park, particularly near park boundaries. Land use associated with the fragmentation of natural habitat directly outside each park is characterised and related to invasion inside the park. Only three of the 14 representative parks examined are not invaded by P. helix. and four are very extensively invaded. ' The analysis of administrative park boundaries supports the hypothesis that H. helix begins invasion inside park boundaries that are adjacent to established residential areas. H. helix is found in moist forest communities of grand fir (Abies grandis) bigleaf maple (Acer macrophyllum) and western redcedar (Thuja plicata). Communities c f Garry oak (Quercus garryana) with black hawthorn (Crataegus douglasii) and English hawthorn (C. monogyna) are heavily invaded and vulnerable to invasion' However. Douglas-fir (Pseudotsuga menziesii) forest communities are most heavily invaded and especially at risk of invasion. H helix climbs at least 17 species of trees and tall shrubs. with Douglas-fir trees providing the tallest supports. Other areas in parks vulnerable to invasion by H. helix include woodlands with rich soils, slight canopy gaps. windthrown forest edges, park entranceways and accessways. During the growth season, H. helix shoots were monitored in both heavily and less invaded sites. On average, shoots on the forest floor grew 22 cm per month. and on host trees, shoots grew 17 cm per month. Another growth characteristic of H. helix is that where it is long established on host trees, its stems have radial growth rings viewable in cross-section. These rings are likely annual and sensitive to annual climatic variability. The spread of an introduced liana, a plant form not present in the indigenous flora, has several implications for near-urban forest ecology including altered physical forest structure, hastened tree death and suppression of understory species (e.g. seedlings and shrub species such as salal - Gaultheria shallon and possibly red huckleberry - Vaccinium parvifolium). The increased concentration and range of exotic, horticultural species such as H. helix, in near-urban park and forest fragments, signifies that an exotic species management strategy is urgently needed for habitat and ecosystem conservation.

Thesis (doctoral)--Universität Bern, 1913. / Includes bibliographical references.