Plant growth regulators in wheat

2012

Research organisatons
Funding source

Trial details

Researcher(s) Victor Sadras (SARDI) and Glenn McDonald (University of Adelaide)
Year(s) 2012
Contributor Hart Field Site Group
Trial location(s) ,
, SA
Condowie, SA
Site 5, Hart, SA
Plant growth regulators in wheat locations
Aims

To measure the effect of plant growth regulants and their interaction with nitrogen on wheat grain yield and quality, in the absence of lodging.

Key messages
  • Plant growth regulators had no significant impact on wheat grain yield in 2012, at four different sites.
  • Plant growth regulators can reduce grain yield and quality with incorrect application timing, especially to crops under stress i.e dry, nutrient deficient, frost, waterlogging.
Lead research organisation South Australian Research and Development Institute
Host research organisation Hart Field Site Group
Trial funding source GRDC
Related program N/A
Acknowledgments

The Hart Field-Site Group wish to thank Brian Kirchner and Simon Goldsmith, Andrew and Rowan Cootes, Michael and David Miller, David Hentschke and Matt Ashby for the use of their paddocks and cooperation with this trial work.


Other trial partners The University of Adelaide
Download the trial report to view additional trial information

Method

Crop type Wheat
Treatment type(s)
  • Crop
  • Growth regulator
  • Growth regulator: Type
Trial type
Trial design

2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Condowie 2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser Not specified

Hart 2012

Sow date 30 May 2012
Harvest date Not specified
Plot size 8m x 10m
Plot replication 3
Fertiliser

DAP@80kg/ha+2% Zn

Download the trial report to view additional method/treatment information

Download results

Trial results Hart

# Treatment 1
Screenings (%) Protein (%) Grain yield (t/ha)
1 No PGR + 0 nitrogen 2.2 11 2.01
2 No PGR + 46 nitrogen 2.5 11.5 1.73
3 PGR + 0 nitrogen 2.2 10.4 1.89
4 PGR + 46 nitrogen 2.1 10.8 1.7

Grain yield t/ha


Loading

Protein %


Loading

Screenings %


Loading

Trial results Condowie

# Treatment 1
Screenings (%) Protein (%) Grain yield (t/ha)
1 No PGR + 0 nitrogen 2.2 11 2.01
2 No PGR + 46 nitrogen 2.5 11.5 1.73
3 PGR + 0 nitrogen 2.2 10.4 1.89
4 PGR + 46 nitrogen 2.1 10.8 1.7

Grain yield t/ha


Loading

Protein %


Loading

Screenings %


Loading

Trial results Saddleworth

# Treatment 1
Screenings (%) Protein (%) Grain yield (t/ha)
1 No PGR + 0 nitrogen 2.2 11 2.01
2 No PGR + 46 nitrogen 2.5 11.5 1.73
3 PGR + 0 nitrogen 2.2 10.4 1.89
4 PGR + 46 nitrogen 2.1 10.8 1.7

Grain yield t/ha


Loading

Protein %


Loading

Screenings %


Loading

Trial results Spalding

# Treatment 1
Screenings (%) Protein (%) Grain yield (t/ha)
1 No PGR + 0 nitrogen 2.2 11 2.01
2 No PGR + 46 nitrogen 2.5 11.5 1.73
3 PGR + 0 nitrogen 2.2 10.4 1.89
4 PGR + 46 nitrogen 2.1 10.8 1.7

Grain yield t/ha


Loading

Protein %


Loading

Screenings %


Loading
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
, Not specified
, SA Not specified
Condowie, SA Not specified
Site 5, Hart, SA Calcarosol
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
, Chromosol
, SA Chromosol
Condowie, SA Chromosol
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

Loading

Climate

Site 5, Hart SA 2012


Observed climate information

Rainfall trial gsr (mm) 168mm

Derived climate information

SA

SA

Condowie SA

Site 5, Hart SA

SA

Loading
Loading
Loading

SA

Loading
Loading
Loading

Condowie SA

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

Site 5, Hart SA

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 last modified: 09-12-2019 19:41pm AEST