Isoproturon resistant biotype of P. minor germinates early, shows higher germination percentage and faster rate of growth as compared to the susceptible biotype. Higher amylase activity is observed in the initial hours of imbibition in the resistant biotype. In the susceptible biotype it is activated at a much later stage.

Despite the increasing biological and economic impacts of invasive species, little is known about the evolutionary mechanisms that favor geographic range expansion and evolution of invasiveness in introduced species. Here, we focus on the invasive wetland grass Phalaris arundinacea L. and document the evolutionary consequences that resulted from multiple and uncontrolled introductions into Nort...

—Phalaris arundinacea L. (reed canarygrass) is an aggressive graminoid species that invades wetlands in much of the northern United States. In areas previously used for agriculture and other recently disturbed habitats, P. arundinacea out-competes the native flora and creates monocultures, which reduce biodiversity and alter ecosystem functioning. Much research has focused on the growth respons...