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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

An analysis of the adoption of innovations by Okanagan orchardists

Millerd, Frank Webb January 1965 (has links)
This study analyses the adoption of some innovations by Okanagan Valley orchardists. Comparisons were made with findings on the adoption of innovations by American farmers. Also included in the study is an evaluation of the 1964 televised chautauqua produced by the Horticultural Branch of the British Columbia Department of Agriculture. This style of chautauqua (which may be defined as an assembly for educational purposes, lectures, entertainment, etc.) replaced an earlier version held in district halls throughout the Okanagan Valley. The data were gathered by interviewing a sample of Okanagan Valley orchardists from the population of orchardists in the area served by the 1964 T.V. Chautauqua and who were also included in the 1960 Orchard Survey of the Okanagan Valley. Generally, adoption theory, as developed from studies in other countries, can be applied to a specific Canadian setting. Earlier adopters of innovations were more active educationally, had been in orcharding longer, had larger and more valuable orchards, and sold more orchard products than later adopters. These results coincide with past studies. However, the vast majority of the early adopters were full-time orchardists, while other studies have found part-time farmers to be the most innovative. Also, this study found complete ownership of the farm to be a characteristic of the later adopters while other studies have found this characteristic of early adopters. Two differences with previous studies were found in the use of sources of information. Agricultural agencies increased in importance between the awareness and interest stages in the adoption process. Also unique to this study was less use of mass media and agricultural agencies by the earlier adopters than the later ones. Evidence of a two-step concept of the diffusion of technological innovations was found with innovations flowing from their place of origin to the earlier adopters and from them to the later adopters. Innovativeness was found to be a general characteristic of certain respondents in that they adopted most innovations. The T.V. Chautauqua was more valuable than its predecessor in one respect; more of the laggards (who use fewer agricultural agencies than most orchardists) watched the televised program than attended the district hall chautauqua. This study is limited by the use of a sample to gather data, the use of an incomplete population list for sampling and inconsistencies in the interpretation of questions and answers by the interviewers. / Land and Food Systems, Faculty of / Graduate
32

Incidence, etiology and epidemiology of stonefruit dieback in the Okanagan Valley

Cujec, Thomas Peter January 1988 (has links)
A Cytospora species isolated from infected tissues and sporulating stromata on diseased trees caused typical dieback symptoms when inoculated into Prunus species and was identified as the primary cause of stonefruit dieback in the Okanagan. Based on the morphology of the stromata, spore dimensions, and colony growth and color on malt extract agar, the fungus was identified as C. leucostoma (Sacc). After including the number of trees removed during the winter of 1985-86 and 1986-87 because of Cytospora sp., an average of 14.8% of the trees in 17 stonefruit orchards were affected by dieback from September 1985 to September 1987. The incidence of Cytospora sp. in the individual blocks ranged from 3.0-56.9%. In 11 of the 17 orchards surveyed in 1986 and resurveyed in 1987, dieback symptoms were evident on trees which had been symptomless in 1986. The percent of newly infected trees in these 11 blocks ranged from 0.4-8.8% and averaged 2.9%. The majority of sporulating Cytospora sp. infections were found on the scaffold limbs (69%) or trunks (28%) of infected trees. Pruning wounds (65%), rather than winter injury (25%), were the major infection courts. Fall and spring inoculations of a spore suspension (10³ spores/ml) of either a peach isolate (P8-19) to peach, or a cherry isolate (C9-23) to cherry revealed that intraspecies spread of the disease can occur at any time of the year. Although spring spore inoculations of the peach isolate to cherry or the cherry isolate to peach resulted in significantly (P = 0.05) more infections than the control treatments, identical fall inoculations did not. This suggests that spread of Cytospora sp. between cherry and peach is most likely to occur in the spring. The effect of temperature on spore germination and mycelial growth of Cytospora sp. in vitro was isolate-dependent. The minimum lag period for Cytospora sp. spore germination occurred at 27° C. Spores germinated at temperatures as low as 10° C, and remained viable even after exposure to -18° C for 1 week. The temperature optima for the in vitro growth of most stonefruit isolates in this study was 20-23° C. Viable Cytospora sp. spores were washed from infected trees (10⁵-10⁶ spores/ml) and adjacent healthy trees (10⁴ spores/ml) in mid-December and collected in funnel traps after the first rain the following spring (late April). Under Okanagan conditions, infection of fresh pruning wounds made in the spring can occur either by spores which overwintered on infected trees and were dispersed by spring rains, or by spores dispersed by fall rains to healthy trees on which they overwintered and infected following pruning. Benomyl (1 g a.i./L), dichlone (1 g a.i./L), flusilazole (0.01 g a.i./L) and ziram (5 g a.i./L) applied as water sprays did not significantly (P = 0.1) reduce the percent infection compared to the unprotected, inoculated controls. Of eight fungicide-pruning paste mixtures, only benomyl added to either Heal 'n' Seal or linseed oil significantly (P = 0.1) reduced the number of cankers which developed compared to the untreated control. / Land and Food Systems, Faculty of / Graduate
33

A temporal classification of folklore of the Okanagan Indians

Flynn, Francis Robert John January 1976 (has links)
The Okanagan Indians classify their folklore into three states: (1) animals only in the area (2) animals and humans living harmoniously (3) animals and humans hunt and kill each other. Word counts were done on 55 stories and distance and other coefficients were calculated between pairs of stories. Cluster analyzes on the matrix of distances attempted to determine if the classifications could be arrived at methodologically. Analyzes used were Factor Analysis, Smallest Space Analysis, and Hierarchical Clustering. Results were mixed, and some techniques of Hierarchical Clustering separated the stories into the three categories. / Arts, Faculty of / Anthropology, Department of / Graduate
34

Douglas Lake Okanagan : phonology and morphology

Pattison, Lois Cornelia January 1978 (has links)
This thesis describes aspects of the grammatical structure of Douglas Lake Okanagan, an Indian language spoken in British Columbia, Canada. It is in three parts: phonology, morphophonemics and morphology. The field research on which this study is based was conducted on the Quilchena Reserve near Merritt, B.C. during the summer of 1977. There are thirty-seven consonants defined by three manners: stop, spirant and resonant; and six points of articulation: labial, apical, lateral, velar, post velar and glottal. A contrast of glottalized and unglottalized occurs in the stop and resonant series and a contrast of labialized and unlabialized in the velar and post velar positions. In general, each series shows a full set of oppositions except there is no plain lateral stop in the stop series, no labial spirant in the spirant series and no labialized post velars in the resonant series. The vowels are _i, a and u. Morphophonemic changes involve consonants, vowels, syllables and stress. They include processes of assimilation, dissimilation, fusion, loss, epenthesis, metathesis and stress shift. The morphology deals with the structure of words. Words can be simple roots or roots extended by affixes to form stems. Stems may be classified as transitive or intransitive on the basis of accompanying affixes. Transitive suffixes mark stems which express the action of a subject on an object. Intransitive suffixes mark stems which express an activity or state of a subject with no reference to an object. Affixes also express four aspects: unrealized, continuative, customary and inchoative. Other prefixes are directional, locational, nominal, possessive and agentive. Other suffixes are instrumental and lexical. Reduplicated stems express iteration, plurality, dirninuitivity and intensity. Two roots can be linked to form a compound stem. / Arts, Faculty of / Linguistics, Department of / Graduate
35

Farmers' local ecological knowledge in the biotech age : a multi-sited ethnography of fruit farming in the Okanagan Valley

Askew, Hannah January 2006 (has links)
No description available.
36

Procession in Process: Finding Place in Fruit Breeding

Green, William 18 March 2014 (has links)
The modern disconnect between agricultural producers and consumers in Canada is a result of an increasingly smaller percentage of society taking part in the ‘making’ of food. Fruit breeding —the practice of selectively breeding two fruit varieties to create a genetically superior offspring— is a scientific process found at the Pacific Agri-Food Research Centre in Summerland, B.C. Canada that orchardists use to produce more while investing less. This thesis attempts to reveal the fruit breeding process by establishing an architectural procession through the agricultural landscape in order to reconnect consumer and producer. Further, the design of this thesis explores the development of an architecture of place in order to establish a deeper connection with the fruit breeding process for the visitor.
37

What Lies Beneath

Vice President Research, Office of the 11 1900 (has links)
What lurks preserved beneath lake bottoms is giving Ian R. Walker clues on how climate may change in the future.
38

The Future of Fir

Vice President Research, Office of the January 2008 (has links)
Adam Wei is employing homegrown UBC technology to help manage the sustainability of China’s fir trees.
39

Amphibian Occurrence on South Okanagan Roadways: Investigating Movement Patterns, Crossing Hotspots, and Roadkill Mitigation Structure Use at the Landscape Scale

Crosby, Jonquil January 2014 (has links)
Road expansion and increased traffic likely exacerbates barriers to amphibian migration and dispersal. Within British Columbia’s south Okanagan valley there is particular concern that the COSEWIC-listed blotched tiger salamander (Ambystoma mavortium melanostictum) and Great Basin spadefoot (Spea intermontana) are vulnerable to road effects in their annual movements from upland overwintering habitat to lowland breeding areas. My study utilizes a before after control impact approach to assess amphibian movement and population threats across this highway-bisected landscape. Throughout the spring and summer of 2010-2012, fifty two kilometers of roadways (31 km of highway, 21 km of paved backroad) were repeatedly surveyed from the Canada-USA border to north of Oliver, BC; surveys were carried out utilising vehicles and on foot. Along Highway 97, a three kilometer four-lane highway expansion project was constructed through 2010 and open to traffic use in 2011. Adjacent to a floodplain, survey effort was focused throughout this transect for informed roadkill mitigation structure placement and ongoing ecopassage effectiveness monitoring. Automated camera trap monitoring of culverts within highly concentrated amphibian road hotspots during spring and summer 2011 (three culverts) and 2012 (two culverts) resulted in over eight hundred amphibian culvert events observed. Two sample Wilcoxon tests revealed differences between years in amphibian occurrence between 2010 and 2012 (W = 4679.5, p= 0.02), and mortalities among transect areas, with the largest differences between years within the Osoyoos passing lanes transect. Amphibian mortalities within the passing lanes transect were significantly reduced with the implementation of mitigation structures (x̅2010= 13.2 ± 32.5, x̅2011= 4.7 ± 12.8, x̅2012= 2.3 ± 7.3; 2010 vs. 2012: W= 1535.5, p< 0.001). Roadkill mitigation structures proved effective in observed amphibian occurrence of the entire passing lanes stretch as well as at distances 100 m and 200 m from observed culverts. Double fenced areas resulted in a 94% reduction in amphibian road occurrence. Five species of amphibians were observed over the three survey years (4051 road incidences over 657 survey hours): Pacific chorus frog (Pseudacris regilla), Western toad (Anaxyrus boreas), long-toed salamander (Ambystoma macrodactylum) plus blotched tiger salamander and Great Basin spadefoot. This study aims to provide a better understanding of amphibian hotspots on roadways and ecopassage use within the south Okanagan. It may act as a catalyst to further wildlife-vehicle interaction studies with improved mitigation solutions for amphibian roadway fatalities.
40

The changing face of farm labour in British Columbia : exploring the experiences of migrant Quebecois and Mexican agricultural workers in the Okanagan Valley

Leibel, Geody Cassandra 09 June 2008 (has links)
Over the course of the 20th century, the type of farm labour desired by the North American agricultural industry and the strategies used to procure that labour have undergone significant changes. Rather than relying on immigrant or domestic workers, many growers are now choosing to import temporary foreign workers under contract programs such as the Canadian Mexican Seasonal Agricultural Worker Program (MSAWP). This thesis discusses the implementation of the MSAWP in British Columbia's Okanagan Valley, a region that has for many years depended upon the labour of migrant Quebecois workers to harvest its crops but has for several years experienced severe agricultural labour shortages. Based on fieldwork which explored the experiences of Mexican and Quebecois migrant farmworkers in the Okanagan. it is suggested that the valley's labour shortage has largely been created by the agricultural industry and government, neither of which have improved the conditions of farmwork to the point where agricultural labour would appeal to Canadian workers, and that the MSAWP's implementation has a number of implications, both positive and negative, for agricultural labourers and farmers in the valley.

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