• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • Effects of density on above and below ground biomass of the native alpine grass Poa fawcettiae and the environmental weed Achillea millefolium

    Author(s)
    Johnston, Frances M
    Pickering, Catherine M
    Griffith University Author(s)
    Pickering, Catherine M.
    Johnston, Frances
    Year published
    2007
    Metadata
    Show full item record
    Abstract
    Competition between Poa fawcettiae Vickery the dominant native snowgrass and the invasive herbaceous Achillea millefolium L., was examined in three glasshouse experiments. The first investigated the potential for intra-specific competition in plants by growing them in pots with low and high density. The second examined the potential for inter-specific competition at low, medium and high density. In the third experiment plants in pots where either roots or shoots of the species could not compete were compared to those where root and shoot competition was possible. Achillea millefolium plants produced more than four times ...
    View more >
    Competition between Poa fawcettiae Vickery the dominant native snowgrass and the invasive herbaceous Achillea millefolium L., was examined in three glasshouse experiments. The first investigated the potential for intra-specific competition in plants by growing them in pots with low and high density. The second examined the potential for inter-specific competition at low, medium and high density. In the third experiment plants in pots where either roots or shoots of the species could not compete were compared to those where root and shoot competition was possible. Achillea millefolium plants produced more than four times the biomass of P. fawcettiae plants. As a result the two species responded differently. In the A. millefolium monocultures both root and shoot biomass per plant declined at high density. By contrast, P. fawcettiae biomass was not affected. In mixed species pots, P. fawcettiae had no effect on the biomass of A. millefolium plants, while P. fawcettiae shoot and root biomass per plant decreased when grown with A. millefolium at all densities tested. Root competition from A. millefolium appears to be the main cause of the decrease in biomass of P. fawcettiae. The results imply that A. millefolium may have a competitive advantage over P. fawcettiae in the Australian Alps.
    View less >
    Journal Title
    Nordic Journal of Botany
    Volume
    25
    Publisher URI
    https://onlinelibrary.wiley.com/doi/full/10.1111/j.0107-055X.2007.00041.x
    DOI
    https://doi.org/10.1111/j.0107-055X.2007.00041.x
    Subject
    Plant biology
    Publication URI
    http://hdl.handle.net/10072/17859
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander