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Tall fescue growth and nitrogen uptake as influenced by non-thermal residue managementQureshi, Maqsood Hassan 06 December 1994 (has links)
Graduation date: 1995
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Development of health indicators for rough fescue grasslands in the southern interior of British ColumbiaLamagna, Sarah Frances 11 1900 (has links)
Grasslands throughout the world including those in British Columbia have been severely
reduced and altered by agricultural production and inappropriate livestock grazing practices.
Ongoing degradation of rangelands is a worldwide problem, currently affecting about 680
million hectares of rangelands.
Studies on development and application of criteria and indicators for forests and
grasslands are often lacking, or have been done on a limited number of sites with relatively
narrow ranges of climate and soil type. This study aims to (i) quantify the relationships among
soil/vegetation properties known to be affected by grazing to easily-assessed indicators, used in
the existing health assessment systems, that do not require laboratory analyses or time
consuming measurement, and (ii) to evaluate impacts of grazing on soil aggregate stability on the
rough fescue grasslands of the southern interior of British Columbia. During the growing
seasons of 2006 and 2007, soil and vegetation properties were measured on nine open grassland
sites with a potential natural plant community dominated by rough fescue (Festuca campestris
Rydb.) in the southern interior of British Columbia. Each site had at least one area excluded
from grazing and all units were classified into different seral stages according to the amount of
rough fescue present on the land.
Rough fescue cover was found to be a useful indicator of the presence of functioning
recovery mechanisms. Percent exposed mineral soil was found to be a sensitive indicator of the
degree of soil stability and watershed function, as well as an indicator of the integrity of nutrient
cycles and energy flows in rough fescue grasslands. Percent Junegrass cover was not as sensitive
an indicator as percent exposed mineral soil, but has general overall strength with many health
measures.. Only the 1-2 mm aggregate size class was closely related to most soil and vegetation
properties, showing that it is more sensitive than the other aggregate stability parameters to soil
and vegetation properties.
The results from this study can help rangeland managers and ranchers in determining the
rangeland health in their area as well as help researchers understand that only a certain number of
parameters need to be assessed.
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Recommendations for tree establishment in tall fescue-based silvopastureHoux, James H., Kallenbach, Robert L. January 2008 (has links)
Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 25, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Dissertation advisor: Dr. Robert L. Kallenbach. Vita. Includes bibliographical references.
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Ergot alkaloids and herbivory in model animals and variation in an ergot alkaloid biosynthesis geneSedlock, Andrea B. January 2003 (has links)
Thesis (M.S.)--West Virginia University, 2003. / Title from document title page. Document formatted into pages; contains viii, 62 p. : ill. (some col.) Vita. Includes abstract. Includes bibliographical reference.
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Development of health indicators for rough fescue grasslands in the southern interior of British ColumbiaLamagna, Sarah Frances 11 1900 (has links)
Grasslands throughout the world including those in British Columbia have been severely
reduced and altered by agricultural production and inappropriate livestock grazing practices.
Ongoing degradation of rangelands is a worldwide problem, currently affecting about 680
million hectares of rangelands.
Studies on development and application of criteria and indicators for forests and
grasslands are often lacking, or have been done on a limited number of sites with relatively
narrow ranges of climate and soil type. This study aims to (i) quantify the relationships among
soil/vegetation properties known to be affected by grazing to easily-assessed indicators, used in
the existing health assessment systems, that do not require laboratory analyses or time
consuming measurement, and (ii) to evaluate impacts of grazing on soil aggregate stability on the
rough fescue grasslands of the southern interior of British Columbia. During the growing
seasons of 2006 and 2007, soil and vegetation properties were measured on nine open grassland
sites with a potential natural plant community dominated by rough fescue (Festuca campestris
Rydb.) in the southern interior of British Columbia. Each site had at least one area excluded
from grazing and all units were classified into different seral stages according to the amount of
rough fescue present on the land.
Rough fescue cover was found to be a useful indicator of the presence of functioning
recovery mechanisms. Percent exposed mineral soil was found to be a sensitive indicator of the
degree of soil stability and watershed function, as well as an indicator of the integrity of nutrient
cycles and energy flows in rough fescue grasslands. Percent Junegrass cover was not as sensitive
an indicator as percent exposed mineral soil, but has general overall strength with many health
measures.. Only the 1-2 mm aggregate size class was closely related to most soil and vegetation
properties, showing that it is more sensitive than the other aggregate stability parameters to soil
and vegetation properties.
The results from this study can help rangeland managers and ranchers in determining the
rangeland health in their area as well as help researchers understand that only a certain number of
parameters need to be assessed.
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Festuca hallii (Vasey) Piper (Plains rough fescue) and Festuca campestris RYDB (Foothills rough fescue) Response to Seed Mix Diversity and MycorrhizaeSherritt, Darin E Unknown Date
No description available.
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Temporal effects of fescue toxicosis and heat stress on rat physiology and hepatic gene expressionSettivari, Raja Sekhar, January 2007 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on February 29, 2008) Vita. Includes bibliographical references.
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Using microhistological techniques to predict botanical composition of horse diets on central Kentucky cool-season grass pastureMorrison, Jesse Ira, January 2008 (has links)
Thesis (M.S.)--University of Kentucky, 2008. / Title from document title page (viewed on March 18, 2008). Document formatted into pages; contains: viii, 73 p. : ill. (some col.). Includes abstract and vita. Includes bibliographical references (p. 67-72).
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Tall fescue seed production alley cropped in a hardwood tree plantationSettle, Thomas A. January 2007 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2007. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 3, 2008) Includes bibliographical references.
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Impact of grazing stockpiled tall fescue of lactating beef cowsCurtis, LeAnn Elizabeth. January 2006 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2006. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 20, 2009) Includes bibliographical references.
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