Track 1-01: Understanding Stress Physiology of Grasses and Forages
Description
Periodic drought is a severe constraint on the profitability and sustainability of pastoral production. As a result of climate change, drought events are anticipated to increase in frequency and intensity even in regions where annual precipitation is unchanged, as well as where it is reduced.
Many studies have been carried out on drought resistance of forage species (Holloway-Phillips and Brodribb 2011). However, for most experiments, it is unclear which mechanism(s) are responsible for variation in plant performance under moisture stress, whether drought response mechanisms were triggered, or whether differences in performance were simply the result of intrinsic plant vigour. The objective of the reported research was to understand the underlying physiological and genetic mechanisms responsible for production of perennial ryegrass under summer drought and recovery and regrowth after drought.
Citation
Hatier, Jean-Hugues B.; He, Lulu; Faville, Marty J.; Hickey, Micheal J.; Jones, Chris S.; Jahufer, Mohamed Z. Z.; and Matthew, Cory, "Dissecting Drought-Response Strategies of Perennial Ryegrass (Lolium perenne L.)" (2019). IGC Proceedings (1993-2023). 8.
https://uknowledge.uky.edu/igc/22/1/8
Included in
Dissecting Drought-Response Strategies of Perennial Ryegrass (Lolium perenne L.)
Periodic drought is a severe constraint on the profitability and sustainability of pastoral production. As a result of climate change, drought events are anticipated to increase in frequency and intensity even in regions where annual precipitation is unchanged, as well as where it is reduced.
Many studies have been carried out on drought resistance of forage species (Holloway-Phillips and Brodribb 2011). However, for most experiments, it is unclear which mechanism(s) are responsible for variation in plant performance under moisture stress, whether drought response mechanisms were triggered, or whether differences in performance were simply the result of intrinsic plant vigour. The objective of the reported research was to understand the underlying physiological and genetic mechanisms responsible for production of perennial ryegrass under summer drought and recovery and regrowth after drought.
