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Investigation of Ice Encasement Survival Mechanisms and Winter Preparatory Management Strategies in Annual Bluegrass
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| 자료유형 | 학위논문 |
|---|---|
| 서명/저자사항 | Investigation of Ice Encasement Survival Mechanisms and Winter Preparatory Management Strategies in Annual Bluegrass. |
| 개인저자 | Laskowski, Kevin . |
| 단체저자명 | Michigan State University. Crop and Soil Sciences- Doctor of Philosophy. |
| 발행사항 | [S.l.]: Michigan State University., 2019. |
| 발행사항 | Ann Arbor: ProQuest Dissertations & Theses, 2019. |
| 형태사항 | 121 p. |
| 기본자료 저록 | Dissertations Abstracts International 81-04B. Dissertation Abstract International |
| ISBN | 9781392619940 |
| 학위논문주기 | Thesis (Ph.D.)--Michigan State University, 2019. |
| 일반주기 |
Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
Advisor: Merewitz, Emily. |
| 이용제한사항 | This item must not be sold to any third party vendors. |
| 요약 | One aspect of the golf industry is turfgrass management. Annual bluegrass (Poa annua L.) is a golf course turfgrass species, often in a mixed stand with creeping bentgrass (Agrostis stolonifera). Many golf courses in the transition zone and north can be susceptible to ice or freeze injury to golf course putting greens. Annual bluegrass is more susceptible to ice cover damage than creeping bentgrass. In this thesis we aimed to evaluate mechanisms which could alleviate ice cover stress to annual bluegrass through exogeneous applications of chemicals prior to ice cover through fatty acid analysis of annual bluegrass crown tissue. We also intend to examine the role of the plant growth hormone, ethylene, in annual bluegrass and its effects on ice cover survival.Applications of fungicides or plant growth regulators to golf course putting greens are common turfgrass management tools. Trinexapac-ethyl, Civitas, paclobutrazol, and propiconazole are commonly applied to golf course putting greens. Applications of trinexapac-ethyl decreased unsaturated fatty acids while increasing saturated fatty acids ratios in crown tissue of annual bluegrass while Civitas increased unsaturated fatty acids and decreased saturated fatty acids. This was correlated to ice cover recovery with Civitas increasing recovery and trinexapac ethyl decreasing recovery after ice cover. The gaseous hormone ethylene was then examined to determine its role in changes to fatty acid ratios of annual bluegrass under ice cover. Applications of effective ethylene chemicals decreased unsaturated fatty acid ratios while increasing saturated fatty acid ratios. |
| 일반주제명 | Plant sciences. Agriculture. |
| 언어 | 영어 |
| 바로가기 | 
: 이 자료의 원문은 한국교육학술정보원에서 제공합니다. |
