Tall fescue germplasm response to freezing temperatures
Abstract Tall fescue [Schedonorus arundinaceus (Schreb.) Dumort., nom. cons.] is a perennial cool‐season grass in which improved freeze tolerance could result in greater winterhardiness and persistence. Our objective was to evaluate survival and freeze‐tolerance thresholds of ‘Flecha’ summer‐dormant...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
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| Series: | Agricultural & Environmental Letters |
| Online Access: | https://doi.org/10.1002/ael2.20017 |
| _version_ | 1818590695035764736 |
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| author | Sindy M. Interrante Jimmy D. Stein Michael A. Trammell Stephen L. Webb Twain J. Butler |
| author_facet | Sindy M. Interrante Jimmy D. Stein Michael A. Trammell Stephen L. Webb Twain J. Butler |
| author_sort | Sindy M. Interrante |
| collection | DOAJ |
| description | Abstract Tall fescue [Schedonorus arundinaceus (Schreb.) Dumort., nom. cons.] is a perennial cool‐season grass in which improved freeze tolerance could result in greater winterhardiness and persistence. Our objective was to evaluate survival and freeze‐tolerance thresholds of ‘Flecha’ summer‐dormant (SD) and ‘Texoma Max QII’ summer‐active (SA) tall fescue at seedling (1–2 leaves) and tillered (5–6 leaves) growth stages using controlled environment freezing chambers. Target temperatures ranged from 0 to −9 °C (seedlings) and 0 to −12 °C (tillered plants). Predicted lethal temperature at which 50% mortality occurs (LT50) was −5.7 and −5.5 °C for SA and SD seedlings, respectively, and −6.0 and −5.7 °C for SA and SD tillered plants, respectively. Based on these results, a controlled temperature chamber appears to be a useful tool for plant breeders when evaluating survival and freeze tolerance of SA and SD tall fescue germplasm at seedling and tillered growth stages. |
| first_indexed | 2024-12-16T10:00:37Z |
| format | Article |
| id | doaj.art-f3428cd7a9ca481baa16fd86602fa39f |
| institution | Directory Open Access Journal |
| issn | 2471-9625 |
| language | English |
| last_indexed | 2024-12-16T10:00:37Z |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Agricultural & Environmental Letters |
| spelling | doaj.art-f3428cd7a9ca481baa16fd86602fa39f2022-12-21T22:35:48ZengWileyAgricultural & Environmental Letters2471-96252020-01-0151n/an/a10.1002/ael2.20017Tall fescue germplasm response to freezing temperaturesSindy M. Interrante0Jimmy D. Stein1Michael A. Trammell2Stephen L. Webb3Twain J. Butler4Noble Research Institute 2510 Sam Noble Parkway Ardmore OK 73401 USANoble Research Institute 2510 Sam Noble Parkway Ardmore OK 73401 USANoble Research Institute 2510 Sam Noble Parkway Ardmore OK 73401 USANoble Research Institute 2510 Sam Noble Parkway Ardmore OK 73401 USANoble Research Institute 2510 Sam Noble Parkway Ardmore OK 73401 USAAbstract Tall fescue [Schedonorus arundinaceus (Schreb.) Dumort., nom. cons.] is a perennial cool‐season grass in which improved freeze tolerance could result in greater winterhardiness and persistence. Our objective was to evaluate survival and freeze‐tolerance thresholds of ‘Flecha’ summer‐dormant (SD) and ‘Texoma Max QII’ summer‐active (SA) tall fescue at seedling (1–2 leaves) and tillered (5–6 leaves) growth stages using controlled environment freezing chambers. Target temperatures ranged from 0 to −9 °C (seedlings) and 0 to −12 °C (tillered plants). Predicted lethal temperature at which 50% mortality occurs (LT50) was −5.7 and −5.5 °C for SA and SD seedlings, respectively, and −6.0 and −5.7 °C for SA and SD tillered plants, respectively. Based on these results, a controlled temperature chamber appears to be a useful tool for plant breeders when evaluating survival and freeze tolerance of SA and SD tall fescue germplasm at seedling and tillered growth stages.https://doi.org/10.1002/ael2.20017 |
| spellingShingle | Sindy M. Interrante Jimmy D. Stein Michael A. Trammell Stephen L. Webb Twain J. Butler Tall fescue germplasm response to freezing temperatures Agricultural & Environmental Letters |
| title | Tall fescue germplasm response to freezing temperatures |
| title_full | Tall fescue germplasm response to freezing temperatures |
| title_fullStr | Tall fescue germplasm response to freezing temperatures |
| title_full_unstemmed | Tall fescue germplasm response to freezing temperatures |
| title_short | Tall fescue germplasm response to freezing temperatures |
| title_sort | tall fescue germplasm response to freezing temperatures |
| url | https://doi.org/10.1002/ael2.20017 |
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