Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 707 for “"perennial"”.
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Habitat modeling in perennial and non-perennial rivers: developments and applications
L'abstract è presente nell'allegato / the abstract is in the attachment
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Plant-Soil Feedback and Perennial Forage Systems
… species persistence is critical for sustainable perennial forage systems. I combined a multi-year field trial with a controlled greenhouse PSF experiment to evaluate how harvest frequency and community composition influence native species performance and soil microbiome composition. Field plots, …
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perennial: for winds, strings, guitar, and drums
perennial is a four-movement work with an interlude that is scored for violin, viola, cello, bass, flute, alto flute, clarinet, bass clarinet, electric guitar, and drum set. This genre-elusive piece centers around perpetual cycles of growth and decay and explores verdant textures, wandering …
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Intercropping dynamics in a perennial Kernza cropping system
A research agenda has been undertaken to perennialize agrarian landscapes in response to structural issues inherent to annual agricultural production, which compromise the sustainability and resiliency of cropping systems. These issues include soil erosion, nutrient runoff, declining soil organic …
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Control of two perennial grasses in southern turfgrasses
… L.) and torpedograss (Panicum repens L.) are perennial grasses that are extremely difficult to remove in established turfgrass. Studies were conducted to determine the potential for controlling these troublesome perennial weeds. Pot studies were conducted for two years to evaluate several …
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Epidemiology and Control of Perennial Canker of Peach
Made available in DSpace on 2014-12-14T04:37:43Z (GMT). No. of bitstreams: 1 7821234.pdf: 2895679 bytes, checksum: 82023f9c2924263e56521d8fa8af335d (MD5) Previous issue date: 1978
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Controls on soil carbon accrual in restored perennial grasslands.
Controls on soil carbon accrual in restored perennial grasslands.
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"Perennial Miracle of Modest Interpreters": Charlotte Delbo's Théâtre Concentrationnaire
<p>Theatre played a significant role in the Holocaust experiences of playwright, activist, and Auschwitz survivor Charlotte Delbo. Turning to drama again and again to cope with the horrors of the concentration camps, Delbo and her companions in the camps proved that theatre is, in fact, an innate …
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Inbreeding Depression in the Partially Selfing Perennial, Ruellia Humilis
Ruellia humilis is a long-lived perennial herb found commonly in dry prairies and glades within the highly fragmented tallgrass prairie ecosystem. This species is characterized by showy chasmogamous flowers that promote outcrossing via hawkmoths and automatically self-fertilizing cleistogamous …
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Perennial grasses as sustainable bioenergy crops for marginal lands
… 2, the biomass yield and performance of four perennial grass species: Miscanthus x giganteus, big bluestem (Andropogan gerardii Vitman), ‘Kanlow’ switchgrass (Panicum virgatum L.) and four natural populations of prairie cordgrass (Spartina pectinata Link.) were investigated in wet marginal …
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Perennial pathways: Planning and establishment practices for edible agroforestry
… case studies of successful farms with diverse, perennial polycultures. The handbook will be freely available online and will be promoted through workshops and partnerships with non-profit entities working in agroforestry.
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Seasonal changes in quality of three cool season perennial grasses
Call number: LD2668 .T4 1979 M78
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Accessing Chilling Conditions For Perennial Fruit Crop Production in Kentucky
… Region fruit and nut trees, and many other perennial plants, require cool winter temperatures (chilling hours) to ensure leaf and flower bud production in the following season. Temperate Regions are characterized by variable winter and spring temperatures. Failure of meeting sufficient …
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Modeling Intermittent and Perennial Headwater Stream Origins In North Carolina.
… or omitting channels entirely. Intermittent and perennial headwater streams each provide unique habitat. Until recently, it has not been possible to accurately delineate these streams or predict channel flow durations without fieldwork. Recent advances in remote sensing may allow more accurate …
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Understanding pasture performance: the interaction between perennial ryegrass and viruses
… systems in New Zealand is a pasture comprised of perennial ryegrass (Lolium perenne L.). Therefore, the productivity and profitability of livestock industries is inextricably linked to, and influenced by, the quality and performance of the underlying perennial ryegrass pasture. However, previous …
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Harvesting behavior of perennial cash crops: a decision theoretic study
This study analyzed the harvesting behavior of perennial cash-crop growers in Sri Lanka. These growers face two alternatives with respect to harvesting; premature and mature harvesting. The objectives of the study were: to determine the reasons for premature harvesting, to explain this behavior …
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Open Silence: An Application of the Perennial Philosophy to Literary Creation
Open Silence: An Application of the Perennial Philosophy to Literary Creation is a dissertation that combines a creative component, which is a long, narrative poem, with a framing essay that is an exegesis on the creative component. The poem, entitled The Silence Inside the World, tells the story …
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Senescence of Native Perennial Warm Season Grasses Senescence Associated Switchgrass Transcriptome
<p>Senescence of perennial crops enable continuous harvests after one sowing event. Perennials senesce at adapted rates of their native environments; however, early senescencing crops do not maximize the growing season as nutrient reallocation takes precedence. Chlorophyll degradation and nitrogen …
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Investigations of self-incompatibility (SI) in perennial ryegrass (Lolium perenne L.)
Perennial ryegrass (Lolium perenne L.) is one of the most economically and environmentally important grass species for the temperate zone. It maintains effective self-incompatibility (SI), which promotes outbreeding as well as limits the efficient production of inbred lines and hybrids. SI in L. …
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