Canola Competition for weed suppression

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Abstract

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)
Pages60-62
Number of pages3
ISBN (Electronic)9780864762399
Publication statusPublished - 2010
EventAustralasian Weeds Conference (AWC) - Christchurch, New Zealand, New Zealand
Duration: 26 Sep 201030 Sep 2010

Conference

ConferenceAustralasian Weeds Conference (AWC)
Country/TerritoryNew Zealand
Period26/09/1030/09/10

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