Good things come in small packages: plant growth regulators in barley


Research organisaton
Funding source

Trial details

Researcher(s) Tim McClelland (BCG)
Year(s) 2013
Contributor Birchip Cropping Group
Trial location(s) Horsham, VIC
Good things come in small packages: plant growth regulators in barley locations

To assess the effect of PGRs and fungicides on variety-specific barley yields.

Key messages

PGR applied to barley in this trial suppressed plant height, generated a yield benefit and improved crop gross margin.

No single variety responded differently to the addition of PGR or fungicide in this trial.

Fungicide extended the green leaf duration of the crop.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAN00173
Related program Management of Barley and Barley Cultivars for the Southern Region

The trial was funded by the GRDC’s ‘Barley Agronomy for the Southern Region’ project.

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


Crop type Barley
Treatment type(s)
  • Fungicide: Type
  • Variety: Type
Trial type Experimental
Trial design Replicated

Horsham 2013

Sow date 8 May 2013
Harvest date Not specified
Plot size Not specified
Plot replication 4

9 May - MAP + Zn (55kg/ha) 2 July - Urea (90kg/ha) 13 - August Urea (90kg/ha)


15 May - TriflurX® (2L/ha) & Avadex® Xtra (2L/ha) 9 July - Velocity® (670ml/ha), LVE MCPA (333ml/ha), LontrelTM Advanced (170ml/ha) & HastenTM (1%)


30 September - Fastac® Duo (300ml/ha)

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

@T1: GS87
# Treatment 1
Grain yield (t/ha) Partial gross margin ($/ha) NDVI (.)
1 Moddus 5.8 1065 0.49
1 Amistar Xtra + Moddus 5.82 1039 0.52
2 Nil 5.58 1021 0.55
2 Amistar Xtra 5.4 1017 0.59

Grain yield t/ha




Partial gross margin $/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Horsham, VIC Clay (black)
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Horsham, VIC Vertosol
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 Horsham VIC
2013 702.3mm
2012 704.1mm
2011 724.3mm
2010 731.0mm
2009 712.9mm
2008 694.6mm
2007 699.2mm
2006 680.2mm
2005 703.4mm
2004 696.3mm
2003 705.2mm
2002 677.6mm
2001 701.0mm
2000 628.8mm
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



Horsham VIC 2013

Observed climate information

Rainfall trial gsr (mm) 341mm

Derived climate information

Horsham VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate

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: 05-07-2019 14:00pm AEST