Field evaluation of Australian wheat genotypes for competitive traits and weed suppression

Research output: Book chapter/Published conference paperConference paperpeer-review


In 2014 and 2015, replicated field trials were performed at commercial paddocks in moderate to low rainfall zones at Wagga Wagga and Condobolin NSW, respectively. In 2014, a total of 11 winter wheat cultivars (Triticum aestivum L.) representing four major breeding family lines grown in Australia were evaluated with 13 cultivars assessed in 2015. At each site, crop and/or weed growth were monitored at various stages of growth: early season (tillering), vegetative, grain filling, harvest and post-harvest. Significant differences between wheat cultivar and location were observed for crop biomass, early vigour, leaf area index (LAI), weed number, weed biomass, canopy architecture and yield in both 2014 and 2015. Differences in weed suppression were largely impacted by crop architecture and phenology early in the growing season. Cultivar competitive traits were also influenced by both genotype and environmental factors, as shown by clear differences in cultivar performance, yield and weed suppression among both locations. Cultivars Condo and Espada were superior performers for yield and weed suppression in both locations and years analysed. This data supports the concept that choice of wheat cultivar can prove to be a cost effective means of weed management.
Original languageEnglish
Title of host publicationProceedings of the 20th Australasian weeds conference (2016)
EditorsRod Randall, Sandy Lloyd, Catherine Borger
Place of PublicationPerth
PublisherWeed Society of Western Australia
Number of pages6
ISBN (Electronic)9780646960319
Publication statusPublished - 2016
Event20th Australasian Weeds Conference (2016) - Pan Pacific Hotel, Perth, Australia
Duration: 11 Sept 201615 Sept 2016 (Conference website) (Conference proceedings)


Conference20th Australasian Weeds Conference (2016)
Abbreviated titleScience, Community and Food Security: the Weed Challenge
OtherIn 2016, the Council of Australasian Weed Societies (CAWS), along with local hosts the Weeds Society of Western Australia, are celebrating the 20th Australasian Weeds Conference. The biennial conference is being held at the Pan Pacific in Perth, Western Australia which has traditionally been one of the highest attended AWC's, and over 300 delegates are expected from across Australasia.
Delegates will come together to meet-up with peers, engage with industry sponsors, and to listen and participate in presentations and field trips on a variety of topics including:

Herbicide Resistance
Weeds of National Significance
Agricultural weeds
Environmental weeds
Biological control of weeds
Modelling and new technologies to manage weeds
Legislation, regulation and policy to manage weed
Internet address

Grant Number

  • GRDC UCS 00020
  • GRDC UCS 00022
  • GRDC UCS 00023


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