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Saint Joseph's University Institute for Environmental Stewardship.

DE141134324

Publication Date	2014
Personal Author	McCann, M. P.; Springer, C.
Page Count	22
Abstract	The major objective of the study was to understand the physiological and growth responses of the important biofuel grass species, Panicum virgatum (switch grass) to simulated changes in precipitation expected for the Central Plains region of the United States. Population level adaptation to broad-scale regional climates or within-population variation in genome size of this genetically and phenotypically diverse C4 grass species may influence the responses to future precipitation variability associated with climate change. Therefore, we investigated switchgrass responses to water variability between natural populations collected across latitudinal gradient and populations. P. virgatum plants from natural populations originating from Kansas, Oklahoma, and Texas received frequent, small precipitation events (ambient) or infrequent, large precipitation events (altered) to simulate contrasting rainfall variability expected from this region.
Keywords	Environmental management Biofuels Biomass Climate change Grasses Moisture Morphology Physiology Plants Species diversity
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	68 - Environmental Pollution & Control 97K - Fuels 57C - Botany 57H - Ecology
Corporate Authors	Department of Energy, Washington, DC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201425

Saint Joseph's University Institute for Environmental Stewardship.

Saint Joseph's University Institute for Environmental Stewardship.
DE141134324

Publication Date	2014
Personal Author	McCann, M. P.; Springer, C.
Page Count	22
Abstract	The major objective of the study was to understand the physiological and growth responses of the important biofuel grass species, Panicum virgatum (switch grass) to simulated changes in precipitation expected for the Central Plains region of the United States. Population level adaptation to broad-scale regional climates or within-population variation in genome size of this genetically and phenotypically diverse C4 grass species may influence the responses to future precipitation variability associated with climate change. Therefore, we investigated switchgrass responses to water variability between natural populations collected across latitudinal gradient and populations. P. virgatum plants from natural populations originating from Kansas, Oklahoma, and Texas received frequent, small precipitation events (ambient) or infrequent, large precipitation events (altered) to simulate contrasting rainfall variability expected from this region.
Keywords	Environmental management Biofuels Biomass Climate change Grasses Moisture Morphology Physiology Plants Species diversity
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	68 - Environmental Pollution & Control 97K - Fuels 57C - Botany 57H - Ecology
Corporate Authors	Department of Energy, Washington, DC.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201425