Crown rot seed dressing trial

CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Barry Haskins (AgGrow)
Michael Skipper (AgGrow)
Clay Sutton (Arysta)
Rachael Whitworth (AgGrow)
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 types Barley
Treatment type(s)
  • Crop: Type
  • Crop: Protection
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Merriwagga 2016 Barley

Sow date 3 May 2016
Harvest date 28 November 2016
Plot size 1.75m x 11m
Plot replication Not specified

Merriwagga 2016 Wheat

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
Merriwagga, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Merriwagga, NSW Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Merriwagga NSW
2016 628.8mm
2015 582.1mm
2014 562.1mm
2013 561.4mm
2012 588.8mm
2011 603.4mm
2010 642.9mm
2009 585.1mm
2008 598.1mm
2007 535.8mm
2006 576.4mm
2005 582.7mm
2004 535.9mm
2003 539.7mm
2002 529.8mm
2001 550.5mm
2000 539.2mm
National soil grid Source: CSIRO/TERN
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 last modified: 25-11-2019 14:55pm AEST