PhD Oral Defense: Effect of heavy metals on establishment of common ragweed (Ambrosia artemisiifolia L.) and ground cover legumes in roadside edges

Tuesday, October 7, 2014 09:15
Raymond Building R2-013, 21111 Lakeshore Road, St Anne de Bellevue, QC, H9X 3V9, CA

PhD Oral Defense of Jichul Bae, Department of Plant Science

Dense monocultures of Ambrosia artemisiifolia frequently occupy pavement edges of major roadways and highways in southern Québec, Canada, which has led to unsuccessful turf-recruitment and poor establishment of the current supplement ground cover (i.e. Trifolium species). Due to its adverse impacts on agroeconomy and public health, understanding ecological cause(s) of A. artemisiifolia establishment along roadside edges will help us to control this problematic weed and prevent its dispersal into nearby agricultural and urban areas. Surface soils adjacent to major roads and highways commonly contain heavy metals at phytotoxic levels. We hypothesized that during early establishment stage higher metal tolerance of A. artemisiifolia than the current cover legume (Trifolium spp.) may cause its successful establishment along roadside edges.

Everyone in the McGill community is welcome to attend a PhD oral defense. Please join us in celebrating the accomplishments of our PhD candidates.

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