Canola Competition for weed suppression

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    Summary: Competitive crops are an important component of integrated weed management systems to reduce dependence on herbicides and resistance spread. Canola (Brassica napus) is a useful break crop but its potential to suppress weeds such as annual ryegrass (Lolium rigidum) has not been quantified in Australia. A study was conducted in 2009 to examine the range in competiveness available in 15 current canola types with annual ryegrass. Significant differences in grain yield of canola were recorded in weedy and weed-free plots, with percentage yield reductions from weeds of 60'100%. Crop competiveness was also assessed by weed dry matter suppression at flowering, which was negatively correlated with crop dry matter. The hybrids were higher yielding and were more competitive than the triazine'tolerant cultivars
    Original languageEnglish
    Title of host publication17th conference proceedings
    Subtitle of host publicationNew Frontiers in New Zealand: Together we can beat the weeds
    EditorsSue M Zydendos
    Place of PublicationNew Zealand
    PublisherNew Zealand Plant Protection Society (Inc)
    Number of pages3
    ISBN (Electronic)9780864762399
    Publication statusPublished - 2010
    EventAustralasian Weeds Conference (AWC) - Christchurch, New Zealand, New Zealand
    Duration: 26 Sept 201030 Sept 2010


    ConferenceAustralasian Weeds Conference (AWC)
    Country/TerritoryNew Zealand


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