Effect of wild oats on grain yield of barley

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Sam Kleemann (UoA)
Year(s) 2010
Contributor Hart Field Site Group
Trial location(s) Site 5, Hart, SA
Effect of wild oats on grain yield of barley locations

To measure the impact of increasing wild oat (Avena fatua) densities on the grain yield and quality of barley.

Key messages
  • 20 to 25 wild oat plants per square metre caused a 50% loss in barley grain yield.
  • High wild oat densities significantly reduced barley grain size from (43 to 28 mg).
Lead research organisation Hart Field Site Group
Host research organisation N/A
Trial funding source GRDC
Related program N/A

This trial is funded by the GRDC and is part of a collaborative project.

The Hart Field-Site Group wish to thank Andrew and Richard Hawker for the use of their barley crop and their cooperation with this trial work.

Other trial partners Not specified
Download the trial report to view additional trial information


Crop type Barley
Treatment type(s)
  • Crop
Trial type Experimental
Trial design Randomised,Replicated

Hart 2010

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Hart, SA Chromosol
National soil grid Source
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties



Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Site 5, Hart SA


Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial last modified: 05-06-2019 14:02pm AEST