Playing it safe: clethodim (Select®) use in canola

2013

Research organisaton
Funding source

Trial details

Researcher(s) Kelly Angel (BCG)
Year(s) 2013
Contributor Birchip Cropping Group
Trial location(s) Horsham, VIC
Playing it safe: clethodim (Select®) use in canola locations
Aims

To identify whether certain canola varieties are more sensitive to clethodim (Select®) at different timings and rates.

Key messages

Late application and/or higher rates of clethodim pose a high risk to canola yields. Split applications at lower rates do not appear to cause as much damage as a single higher rate. Varieties appear to differ in their tolerance of high rates, but further investigation is required.

Lead research organisation N/A
Host research organisation N/A
Trial funding source BCG members
Related program N/A
Acknowledgments

This trial was funded by BCG members though their membership, and support from Agritech Rural.


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

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Crop: Variety
  • Herbicide: Timing
  • Herbicide: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Horsham 2013

Sow date 9 May 2013
Harvest date Unknown
Plot size 2.1m X 14m
Plot replication 4
Fertiliser

9 May - MAP (55kg/ha) 20 June - GranAM (90kg/ha) 13 August - Urea (90kg/ha)

Herbicide

9 May - TriflurX (2L/ha) + Weedmaster Duo (1.8L/ha) 20 June - Targa (200ml/ha) + Verdict (50ml/ha) + Hasten (1%) 2 July - Clethodim (500ml/ha) + Hasten (1%) (treatments 2 & 3 only) 8 July - Atrazine (1.1kg/ha) (TT varieties only) 1 August - Clethodim (500ml/ha) + Hasten (1%) (Treatments 3 & 4 only) 16 August - Verdict (125ml/ha) + Lontrel (170ml/ha) + Hasten (1%) 16 August - Intevix (750ml/ha) (TT varieties only)

Insecticide

30 September - Alpha Duo (300ml/ha)

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Treatment 1
Grain yield (t/ha)
1 44Y84 (CLF) Nil Clethodim 1.59
2 45Y82 (CLF) Nil Clethodim 1.5
3 Hyola 575 (CLF) Nil Clethodim 1.58
4 555 (TT) Nil Clethodim 1.5
5 Crusher (TT) Nil Clethodim 1.62
6 Stingray (TT) Nil Clethodim 1.42
7 44Y84 (CLF) Clethodim 500ml/ha @ 5 leaf 1.51
8 45Y82 (CLF) Clethodim 500ml/ha @ 5 leaf 1.5
9 Hyola 575 (CLF) Clethodim 500ml/ha @ 5 leaf 1.49
10 555 (TT) Clethodim 500ml/ha @ 5 leaf 1.41
11 Crusher (TT) Clethodim 500ml/ha @ 5 leaf 1.45
12 Stingray (TT) Clethodim 500ml/ha @ 5 leaf 1.43
13 44Y84 (CLF) Clethodim 500ml/ha @ budding 1.4
14 45Y82 (CLF) Clethodim 500ml/ha @ budding 1.41
15 Hyola 575 (CLF) Clethodim 500ml/ha @ budding 1.46
16 555 (TT) Clethodim 500ml/ha @ budding 1.51
17 Crusher (TT) Clethodim 500ml/ha @ budding 1.45
18 Stingray (TT) Clethodim 500ml/ha @ budding 1.31
19 44Y84 (CLF) Clethodim 500ml/ha @ 5 leaf & budding 1.47
20 45Y82 (CLF) Clethodim 500ml/ha @ 5 leaf & budding 1.34
21 Hyola 575 (CLF) Clethodim 500ml/ha @ 5 leaf & budding 1.61
22 555 (TT) Clethodim 500ml/ha @ 5 leaf & budding 1.52
23 Crusher (TT) Clethodim 500ml/ha @ 5 leaf & budding 1.59
24 Stingray (TT) Clethodim 500ml/ha @ 5 leaf & budding 1.44

Grain yield t/ha


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Horsham, VIC Grey 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
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

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Climate

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
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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: 13-01-2023 15:20pm AEST