Description
Festulolium (Festulolium braunii K.A.) is marginally adapted to the north central and northeastern USA and southern Canada. The purpose of this study was to evaluate four festulolium populations selected for field survival under harsh winter conditions for their freezing tolerance in controlled environments. Progenies of all four populations showed some improvement in freezing tolerance compared to their parents. Improvements were dependent on the temperature at which measurements were made and varied among germplasms. Improvements were manifested in both decreased plant mortality and decreased injury to surviving plants. Genetic variation for freezing tolerance appears to be a viable mechanism for enhancing field survival of festulolium.
Citation
Casler, M D.; Pitts, P G.; Bilkey, P C.; and Rose-Fricker, C A., "Selection for Field Survival Increases Freezing Tolerance in Festulolium" (2024). IGC Proceedings (1993-2023). 18.
https://uknowledge.uky.edu/igc/1997/session4/18
Included in
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Selection for Field Survival Increases Freezing Tolerance in Festulolium
Festulolium (Festulolium braunii K.A.) is marginally adapted to the north central and northeastern USA and southern Canada. The purpose of this study was to evaluate four festulolium populations selected for field survival under harsh winter conditions for their freezing tolerance in controlled environments. Progenies of all four populations showed some improvement in freezing tolerance compared to their parents. Improvements were dependent on the temperature at which measurements were made and varied among germplasms. Improvements were manifested in both decreased plant mortality and decreased injury to surviving plants. Genetic variation for freezing tolerance appears to be a viable mechanism for enhancing field survival of festulolium.
