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Development of microbial community structure in turfgrass rootzone mixtures varying by amendment, age, presence of plants, and environment

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Text
TitleInfo (ID = T-1)
Title
Development of microbial community structure in turfgrass rootzone mixtures varying by amendment, age, presence of plants, and environment
SubTitle
PartName
PartNumber
NonSort
Identifier
ETD_1497
Identifier (type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051015
Language (objectPart = )
LanguageTerm (authority = ISO639-2); (type = code)
eng
Genre (authority = marcgt)
theses
Subject (ID = SBJ-1); (authority = RUETD)
Topic
Environmental Sciences
Subject (ID = SBJ-2); (authority = ETD-LCSH)
Topic
Turfgrasses
Subject (ID = SBJ-3); (authority = ETD-LCSH)
Topic
Turf management
Subject (ID = SBJ-4); (authority = ETD-LCSH)
Topic
Golf courses--Maintenance
Abstract
The stability of turfgrass golf green rootzone mixtures depends on the development of a stable microbial community structure. Factors affecting microbial community development are age of the turfgrass, the location of golf greens, and the amendments added. The objective of this study was to evaluate methods for assessment of turfgrass rootzone microbial community structure and function and to apply them to field situations. Methods were identified to evaluate the microbial community in these rootzone mixtures. Metabolic diversity (BIOLOG), dehydrogenase activity, bacterial plate counts, and phospholipid fatty acid analysis were performed on turfgrass green rootzone mixture samples collected from a bench top study, established golf courses, a greenhouse study, and replicated field plots.
The utility of each of the measures of microbial communities in evaluating turfgreen stability varied between the levels of complexitiy of the study (i.e. laboratory vs. greenhouse vs. field situation). In the bench top study, BIOLOG, dehydrogenase activity, and bacterial plate counts revealed differences in the microbial community as affected by the base material of the rootzone (sand, soil) and rate of peat moss amendment. In sampling of established golf courses, BIOLOG showed differences in the microbial community, based on age of the rootzone; it was not clear if these differences were due to age or other factors such as management. In a greenhouse study, BIOLOG showed differences in the microbial community, in rootzones varying by amendement and presence of turfgrass. Fatty acid data indicated some grouping based on amendment. Dehydrogenase and bacterial plate counts did not correlate to amendment or presence of turfgrass. Dehydrogenase did show correlation with bacterial signature fatty acids detected. A final study evaluated replicate field plots varying by amendment and microclimates. BIOLOG showed grouping based on microclimate and amendment. Fatty acid data did not vary based on amendment, yet showed slight, seasonal differences in the microbial community. Dehydrogenase did show correlation with bacterial fatty acids detected.
This research demonstrated that the selected methods of microbial community activity and function were useful for evaluating rootzone mixtures, although it appears that the specific combination of tests used will depend upon the system examined.
PhysicalDescription
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electronic resource
Extent
xviii, 283 p. : ill.
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application/pdf
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text/xml
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references (p. 270-282).
Note (type = statement of responsibility)
by Eric Richard Gaulin
Name (ID = NAME-1); (type = personal)
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Gaulin
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Eric Richard
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author
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Eric Richard Gaulin
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Tate
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Robert
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chair
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Advisory Committee
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Robert L Tate
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Strom
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Peter
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internal member
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Advisory Committee
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Peter F Strom
Name (ID = NAME-4); (type = personal)
NamePart (type = family)
Uchrin
NamePart (type = given)
Christopher
Role
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internal member
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Advisory Committee
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Christopher Uchrin
Name (ID = NAME-5); (type = personal)
NamePart (type = family)
Clarke
NamePart (type = given)
Bruce
Role
RoleTerm (authority = RULIB); (type = )
outside member
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Advisory Committee
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Bruce B Clarke
Name (ID = NAME-1); (type = corporate)
NamePart
Rutgers University
Role
RoleTerm (authority = RULIB); (type = )
degree grantor
Name (ID = NAME-2); (type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm (authority = RULIB); (type = )
school
OriginInfo
DateCreated (point = ); (qualifier = exact)
2009
DateOther (qualifier = exact); (type = degree)
2009-01
Location
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NjNbRU
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Identifier (type = doi)
doi:10.7282/T35Q4WC3
Genre (authority = ExL-Esploro)
ETD doctoral
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Open
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Non-exclusive ETD license
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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