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Breeding fine fescues for low maintenance; understanding dollar spot resistance and increasing tolerance to mesotrione
Descriptive
TitleInfo
Title
Breeding fine fescues for low maintenance; understanding dollar spot resistance and increasing tolerance to mesotrione
Name
(type = personal)
NamePart
(type = family)
Tate
NamePart
(type = given)
Trent Matthew
NamePart
(type = date)
1983-
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Trent Matthew Tate
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(authority = RULIB)
author
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Meyer
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William A
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William A Meyer
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Advisory Committee
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chair
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Bonos
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Stacy A
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Stacy A Bonos
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Advisory Committee
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internal member
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(type = personal)
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(type = family)
Clarke
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Bruce B
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Bruce B Clarke
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Advisory Committee
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(authority = RULIB)
internal member
Name
(type = personal)
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(type = family)
McCullough
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(type = given)
Patrick E
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Patrick E McCullough
Affiliation
Advisory Committee
Role
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(authority = RULIB)
outside member
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Rutgers University
Role
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degree grantor
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School of Graduate Studies
Role
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school
TypeOfResource
Text
Genre
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theses
OriginInfo
DateCreated
(qualifier = exact)
2019
DateOther
(qualifier = exact);
(type = degree)
2019-05
Language
LanguageTerm
(authority = ISO 639-3:2007);
(type = text)
English
Abstract
(type = abstract)
Fine fescues are group of cool-season grasses that are utilized as low maintenance grasses. The three main species most commonly utilized are Chewings fescue (Festuca rubra L. subsp. commutata Markgr.-Dann.), hard fescue (Festuca trachyphylla (Hack.) Hack.), and strong creeping red fescue (Festuca rubra L. subsp. rubra). The objectives of this research were to (i) determine the maternal and reciprocals effects of dollar spot resistance in hard fescue by performing a diallel cross between three resistant endophyte containing and three susceptible endophyte free parents, (ii) determine the physiological behavior of mesotrione associated with differential tolerance levels of three fine fescue species and (iii) to utilize a recurrent selection method to breed for increased tolerance to mesotrione in fine fescues and test the selections in field trials.
Maternal and reciprocal effects were significant in the diallel cross of three E+ resistant parents and three E- susceptible parents. All progeny from E+ resistant mothers that got more than 40% dollar spot averaged over the 2 year study did not contain the endophyte. The high maternal inheritance of dollar spot resistance and the maternal inheritance of the Epichlöe festucae fungal endophyte along with demonstration of susceptibility in progeny from an E+ resistant maternal parent that did not get the endophyte suggest the endophyte presence is a major factor in the resistance to dollar spot in hard fescue.
In the dose response study, mesotrione tolerance from highest to lowest was: hard > Chewings > strong creeping red fescue. For the absorption study foliar uptake from highest to lowest was: Chewings > strong creeping red > hard fescue, while root absorption was comparable among species. Overall, less foliar uptake and acropetal translocation may be associated with enhanced tolerance of hard fescue to broadcast mesotrione applications compared to Chewings and strong creeping red fescues.
A total of 29 fine fescue selections were developed with mesotrione tolerance and evaluated over three generations. The hard fescues were consistently the most tolerant in each generation. The Chewings fescue were the second most tolerant group in the first and second generations and the strong creeping red fescues were the least tolerant in the first and second generations. In the third generation one strong creeping red fescue selection was ranked 5th overall for mesotrione injury behind two third generation hard fescue selections.
Maternal and reciprocal effects were significant in the diallel cross of three E+ resistant parents and three E- susceptible parents. All progeny from E+ resistant mothers that got more than 40% dollar spot averaged over the 2 year study did not contain the endophyte. The high maternal inheritance of dollar spot resistance and the maternal inheritance of the Epichlöe festucae fungal endophyte along with demonstration of susceptibility in progeny from an E+ resistant maternal parent that did not get the endophyte suggest the endophyte presence is a major factor in the resistance to dollar spot in hard fescue.
In the dose response study, mesotrione tolerance from highest to lowest was: hard > Chewings > strong creeping red fescue. For the absorption study foliar uptake from highest to lowest was: Chewings > strong creeping red > hard fescue, while root absorption was comparable among species. Overall, less foliar uptake and acropetal translocation may be associated with enhanced tolerance of hard fescue to broadcast mesotrione applications compared to Chewings and strong creeping red fescues.
A total of 29 fine fescue selections were developed with mesotrione tolerance and evaluated over three generations. The hard fescues were consistently the most tolerant in each generation. The Chewings fescue were the second most tolerant group in the first and second generations and the strong creeping red fescues were the least tolerant in the first and second generations. In the third generation one strong creeping red fescue selection was ranked 5th overall for mesotrione injury behind two third generation hard fescue selections.
Subject
(authority = local)
Topic
Festuca
Subject
(authority = RUETD)
Topic
Plant Biology
Subject
(authority = LCSH)
Topic
Fescue -- Disease and pest resistance
Subject
(authority = LCSH)
Topic
Fescue -- Breeding
RelatedItem
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
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ETD
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TitleInfo
Title
School of Graduate Studies Electronic Theses and Dissertations
Identifier
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rucore10001600001
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ETD_9819
Identifier
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doi:10.7282/t3-hytm-jg25
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text/xml
Extent
1 online resource (xi, 95 pages) : illustrations
Note
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Ph.D.
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Includes bibliographical references
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ETD doctoral
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Rights
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The author owns the copyright to this work.
RightsHolder
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Name
FamilyName
Tate
GivenName
Trent
MiddleName
Matthew
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Permission or license
DateTime
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2019-04-11 23:29:39
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Trent Tate
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Affiliation
Rutgers University. School of Graduate Studies
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Author Agreement License
Detail
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.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
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2019-04-19T03:18:49
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2019-04-19T03:18:49
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