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Hydrothermal And Thermal Time Models For The Invasive Grass, Arundo Donax, Anthony Graziani, Scott J. Steinmaus
Hydrothermal And Thermal Time Models For The Invasive Grass, Arundo Donax, Anthony Graziani, Scott J. Steinmaus
Biological Sciences
Controlled laboratory and field experiments were performed to determine the developmental response to temperature and moisture of Arundo donax, a riparian invasive grass and potential bioenergy crop. A logistic function was parameterized and used to predict thermal times to sprouting and the nine-leaf stage. Consistent estimates of the base temperature (Tb) and base water potential (ψb) below which development ceases were obtained from various statistical and mathematical analyses. Estimates of Tb and ψb were 12.7 ± 1.7 °C and −1.56 ± 0.43 MPa, respectively, for the median fraction of sprouting rhizomes. Median …