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Water use and summer stress tolerance mechanisms for creeping bentgrass and Kentucky bluegrass
Descriptive
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Text
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Title
Water use and summer stress tolerance mechanisms for creeping bentgrass and Kentucky bluegrass
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17162
Identifier
ETD_736
Language
LanguageTerm
English
Genre
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theses
Subject
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(authority = RUETD)
Topic
Plant Biology
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Creeping bentgrass--Effects of stress on
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Creeping bentgrass--Drought tolerance
Subject
(ID = SBJ-4);
(authority = ETD-LCSH)
Topic
Kentucky bluegrass--Effects of stress on
Subject
(ID = SBJ-5);
(authority = ETD-LCSH)
Topic
Kentucky bluegrass--Drought tolerance
Subject
(ID = SBJ-6);
(authority = ETD-LCSH)
Topic
Turfgrass--Effects of stress on
Abstract
Creeping bentgrass (Agrostis stoloniferia) and Kentucky bluegrass (Poa Pratensis L.) are two widely-used cool-season grasses grown extensively in northern regions of the United States. Creeping bentgrass is primarily used on golf courses, while Kentucky bluegrass has extensive uses in both home lawns and sports fields. Each of these areas of use are coming under increased scrutiny in regards to water management and conservation. Communities are increasingly putting greater restrictions on both the amount and type of water that can be used for irrigating golf courses, sports fields, and home lawns. The focus of our project was to develop a greater understanding of these grasses' water use, as a way to establish ideal water management practices. The field portion of the project focused on irrigation frequency as applied to three bentgrass species maintained as golf course fairways. Results suggested that reducing frequency and watering one or two times per week, while still replacing 100% of evapotranspiration (ET), produced equivalent, if not improved turf quality, and actually held water deeper in the soil profile, reducing evaporation losses to the atmosphere. In addition to the field portion of the project, experiments were conducted in growth chambers evaluating both creeping bentgrass and Kentucky bluegrass physiological responses to drought and summer stress. Specific findings suggested that exfoliar application of abscisic acid (ABA) or trinexapac-ethyl, a giberrelin inhibitor, significantly improved plant drought tolerance. Further research evaluated genotypic variation between varieties of these species, suggesting that both tolerance and avoidance traits are employed to protect plant physiological function under water deficit.
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xx, 186 pages
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Ph.D.
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Includes bibliographical references.
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McCann
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Stephen E.
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Stephen E. McCann
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Huang
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Bingru
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chair
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Bingru Huang
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Gianfagna
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Tom
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Tom Gianfagna
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Bonos
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Stacy
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Advisory Committee
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Stacy Bonos
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(type = family)
Baird
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James
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outside member
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Advisory Committee
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James Baird
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
DateCreated
(qualifier = exact)
2008
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2008-01
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NjNbRU
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Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
Identifier
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doi:10.7282/T37S7P4X
Genre
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ETD doctoral
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Rights
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The author owns the copyright to this work.
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Copyright protected
Availability
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Open
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Stephen McCann
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Rutgers University. Graduate School - New Brunswick
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Stephen McCann
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Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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Author Agreement 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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