Trifluralin tolerance in different wheat varieties

2000

Research organisaton

Trial details

Researcher(s) N/A
Year(s) 2000
Contributor Birchip Cropping Group
Trial location(s) Watchupga East, VIC
Trifluralin tolerance in different wheat varieties locations
Aims

The aim of this trial work was to determine whether there are differences in wheat varieties in tolerance to trifluralin. The work was carried out over three seasons (1998 to 2000).

Key messages

Differences in trifluralin tolerances exist between different wheat varieties, however the differences were not consistent. Over three years of trial work Silverstar was intolerant to trifluralin in one year (30% yield loss at Triflur480 2.4L/ha IBS in 1998) and tolerant in 1999 and 2000. In 2000 only Yitpi suffered a yield loss (20% yield loss at Triflur480 2.4L/ha IBS). There are no differences in tolerance when applying trifluralin immediately prior to sowing or post sowing pre-emergent as long as the trifluralin is not incorporated into the sowing band. Trifluralin residues in grain were below the Minimum Residue Level (less than 0.05ppm) for the plots with trifluralin used at the registered rate or at the high application rate (Triflur480 2.4L/ha). Trifluralin is registered at 0.8L/ha of Triflur480 applied at least 7 days prior to sowing. NuFarm have applied to the NRA for changes to the Triflur480 label - changes relate to higher rates for use in minimum tillage.

Lead research organisation N/A
Host research organisation N/A
Related program N/A
Acknowledgments

The BCG would like to thank Mathew Conlan and Alistair Murdoch from The University of Melbourne, Dookie Campus for their help with this trial.


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Herbicide: Application Method
  • Herbicide: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Watchupga East 2000

Sow date 25 May 2000
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
Watchupga East, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Watchupga East, VIC Calcarosol
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

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Watchupga East VIC

CAUTION: Trial site locality unknown; Climate data sourced from Birchip Cropping Group office location
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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 report and links

2000 trial report