Plant growth regulators in scope CL barley

2014

Research organisaton
Funding source

Trial details

Researcher(s) Kelly Angel (BCG)
Rob Launder (Agritech Rural)
Year(s) 2014
Contributor Birchip Cropping Group
Trial location(s) Horsham, VIC
Further information View external link
Plant growth regulators in scope CL barley locations
Aims

To determine whether Moddus Evo, applied with and without fungicide at different timings, influenced the level of lodging and head loss in Scope CL barley, and to compare its performance against other PGRs when applied at GS31.

Key messages
  1. In 2014 – a dry season with limited growth and yield at the trial site – Plant Growth Regulators (PGRs) were not economically viable or worthwhile.
  2. PGR use in a tough season may pose more risk than benefit to cereal crops; their use should be gauged on seasonal outlooks.
  3. In 2014, reduction in plant height was greatest with a PGR applied either as a single late, or a split application, not an early application.
  4. The combination of a fungicide such as Amistar Xtra with a PGR such as Moddus Evo, appears to increase the effect of the PGR on plant growth.
Lead research organisation Birchip Cropping Group
Host research organisation N/A
Trial funding source GRDC DAN00173
Related program Management of Barley and Barley Cultivars for the Southern Region
Acknowledgments

This trial was jointly funded by Agritech Rural and the GRDC through the ‘Southern region barley agronomy’ project (DAN00173). 


Other trial partners Agritech Rural
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Growth regulator: Timing
Trial type Experimental
Trial design Blocked

Horsham 2014

Sow rate or Target density 130 plants/m²
Sowing machinery

Knife points, press wheels, 30cm row spacing 

Sow date 13 May 2014 13 May 2014
Harvest date 13 November 2014 13 November 2014
Plot size Not specified
Plot replication Not specified
Fertiliser

MAP @ 55kg/ha at sowing followed by urea @ 90kg/ha top-dressed at GS13 and 100kg/ha top-dressed at GS30. 

Herbicide

Weeds were controlled to best management practice commerical standards.

Insecticide

Pests were controlled to best management practice commercial standards.

Fungicide

Dependent on treatment:

  1. Control
  2. Amistar Xtra, GS31 @ 400ml/ha
  3. Amistar Xtra, GS39 @ 400ml/ha
  4. Amistar Xtra, GS45 @ 400ml/ha
  5. Amistar Xtra, GS31&GS39 @ 400ml/ha, 400ml/ha
  6. Moddus Evo, GS31 @ 400ml/ha
  7. Moddus Evo, GS39 @ 200ml/ha
  8. Moddus Evo, GS45 @ 200ml/ha
  9. Moddus Evo, GS31&GS39 @ 400ml/ha,200ml/ha
  10. Amistar Xtra & Moddus Evo, GS31 @ 400ml/ha,400ml/ha
  11. Amistar Xtra & Moddus Evo, GS39 @ 400ml/ha,200ml/ha
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Plant height (cm)
1 Amistar Xtra & Moddus Evo @ 31 & 39 59
2 Amistar Xtra & Moddus Evo @ 31 Only 64.4
3 Amistar Xtra & Moddus Evo @ 31, 39 & 45 59.4
4 Amistar Xtra & Moddus Evo @ 39 Only 62
5 Amistar Xtra & Moddus Evo @ 45 Only 58.8
6 Amistar Xtra (400ml/ha) & Moddus Evo (400ml/ha) + Cycocel (1.25L/ha) @ 31 Only 63.8
7 Amistar Xtra @ 31 & 39 64.4
8 Amistar Xtra @ 31 Only 68.8
9 Amistar Xtra @ 39 Only 66
10 Amistar Xtra @ 45 Only 61
11 Control 64.6
12 Cycocel (1.25L/ha) @ 31 only 65.6
13 Ethrel (1L/ha)@ 31 Only 61.6
14 Moddus Evo @ 31 & 39 63.4
15 Moddus Evo @ 31 Only 66.8
16 Moddus Evo @ 39 Only 65.2
17 Moddus Evo @ 45 Only 61.8

Plant height cm


Loading
Observed trial site soil information
Trial site soil testing
Site Depth Type pH EC P K N A OC CAT
Horsham, VIC 0 - 10cm 14.00 1.20
Horsham, VIC 0 - 100cm Clay 48.00
Soil conditions
Trial site Soil texture
Horsham, VIC Clay
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
2014 688.0mm
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

Loading

Climate

Horsham VIC 2014


Observed climate information

Rainfall trial total (mm) 226mm
Rainfall trial gsr (mm) 172mm

Derived climate information

Horsham VIC

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

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 report and links

2014 trial report



Trial last modified: 16-07-2019 14:15pm AEST