Crown rot seed dressing trial


Research organisaton
Funding source

Trial details

Researcher(s) Barry Haskins, Rachael Whitworth (AgGrow), Michael Skipper and Clay Sutton (Arysta)
Year(s) 2016
Contributor Central West Farming Systems
Trial location(s) Merriwagga, NSW
Crown rot seed dressing trial locations

To evaluate the influence of the seed treatment Rancona.

Key messages
  • Growing conditions in 2016 were very wet and mild, with rainfall from May to September one of the wettest on record. Growing season rainfall was well above average with 491mm recorded at
    the site.
  • The conditions in 2016 did not favour the expression of crown rot, with only minimal disease observed. As a result there were no significant interactions between any of the seed treatments in this trial.
  • Durum wheat is more susceptible to crown rot than barley. The durum wheat variety Aurora was
    used in this trial and was out-performed by the barley variety LaTrobe, yielding significantly lower.
  • At tillering, the NDVI of treatments not infected by crown rot were significantly higher than those infected by crown rot. At flowering there was no significant difference in NDVI between any treatment
Lead research organisation Central West Farming Systems
Host research organisation N/A
Trial funding source GRDC
Related program N/A

This trial was a collaboration between Ag Grow Agronomy and Research and Arysta Life Science. Ag Grow Agronomy and Research would like to thank trial cooperator Jeff Muirhead for hosting the trial, and also providing assistance

Other trial partners AgGrow and Arysta
Download the trial report to view additional trial information


Crop type Multiple
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Merriwagga 2016

Sow date 3 May 2016
Harvest date 28 November 2016
Plot size 1.75m x 11m
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
Merriwagga, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Merriwagga, NSW Kandosol
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.

Merriwagga NSW


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

SILO weather estimates sourced from
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 report and links

2016 trial report

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Trial last modified: 24-04-2018 18:51pm AEST