AgResearch
Browse

File(s) not publicly available

Competitive exclusion of Cirsium arvense in pasture: a simulated neighbour grazing-height experiment.

journal contribution
posted on 2023-05-03, 17:19 authored by Graeme BourdotGraeme Bourdot, Dave LeathwickDave Leathwick, Dave Saville, G.A Hurrell
The role of interspecific competition in regulating Cirsium arvense in newly sown pasture was investigated in two pot experiments in Canterbury, New Zealand, where it was grown in the presence and absence of Lolium perenne and Trifolium repens. In Experiment 1 (2006–07), where C. arvense was established as transplanted seedlings, it competitively excluded its neighbours when they were maintained between 20 and 60 mm in height. Coexistence occurred when the neighbour height was maintained between 100 and 150 mm, while competitive exclusion of C. arvense resulted when the neighbours were not trimmed. In Experiment 2 (2007–08), where C. arvense was established from small root cuttings, it was out-competed regardless of neighbour height. The results support the existence of a ‘zone threshold’ along a gradient of increasing pasture height (competitiveness) within which the weed and sown species can coexist, and below and above which the weed or the sown species exclude the other.

History

Rights statement

© Informa UK Limited, an Informa Group Company

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Taylor & Francis Group

Journal title

New Zealand Journal of Agricultural Research

ISSN

0028-8233

Citation

Bourdôt, G. W., Leathwick, D. M., Hurrell, G.A., Saville, D. J. (2014). Competitive exclusion of Cirsium arvense in pasture: a simulated neighbour grazing-height experiment. New Zealand Journal of Agricultural Research, 58(1), 1-12.

Usage metrics

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC