Herbicide tolerance of lentil varieties - Merredin


Research organisaton
Funding source

Trial details

Researcher(s) Dr Harmohinder Dhammu and Mark Seymour
Contact email harmohinder.dhammu@dpird.wa.gov.au
Contact phone 0403 156 942
Year(s) 2019
Contributor Department of Primary Industries and Regional Development WA
Trial location(s) Site 11, Merredin, WA
Herbicide tolerance of lentil varieties - Merredin locations

To identify herbicide sensitivities of new lentil varieties with the view to reduce their yield losses due to herbicide damage.

Key messages

Lentil varieties PBA Bolt, PBA Hallmark XT and PBA Jumbo2 showed good tolerance to a range of lentil herbicides or herbicide mixtures applied at the label rates and timings with good crop safety margin.

Unregistered use pattern of Brodal® (diflufenican) at 200 mL/ha as PSPE and of Metribuzin 750 at 100 g/ha in mixture with Brodal® 100 mL/ha as post-emergent application reduced seed yield of PBA Jumbo2 significantly.

Note: Always follow label recommendations. The Department Primary Industries and Regional Development, does not endorse the use of herbicides above the registered rate or off-label use of herbicides or off-label tank mixes. Crop tolerance and yield responses to herbicides are strongly influenced by seasonal conditions.

Lead research organisation Department of Primary Industries and Regional Development WA
Host research organisation Department of Primary Industries and Regional Development WA
Trial funding source DPIRD WA
Related program N/A

Thanks to DPIRD for funding this research work, Dave Allen, Technical Officer, and Vince Lambert, Manager, Research Facility Merredin and Pam Burgess Technical Officer, DPIRD Esperance for their technical assistance.

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


Crop type Lentils
Treatment type(s)
  • Herbicide: Timing
Trial type Experimental
Trial design Randomised,Replicated

Merredin 2019

Sow rate or Target density 110 plants/m2
Sowing machinery

Coneseeder with knife points and press-wheels and 4-5 cm deep. The site was not rolled.

Sow date 14 June 2019
Harvest date 12 November 2019
Plot size 8m x 1.1m
Plot replication 3
Plot randomisation Yes
Seed treatment Gaucho® 2.4 mL and P-Pickle T® 2 mL per kg seed.
Inoculant Alosca group EF granular 10 kg/ha applied with seed at seeding.
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
Site 11, Merredin, WA Clay loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Site 11, Merredin, WA Anthroposol
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 Site 11, Merredin WA
2019 355.8mm
2018 384.5mm
2017 382.8mm
2016 399.1mm
2015 394.5mm
2014 375.8mm
2013 420.2mm
2012 412.2mm
2011 371.6mm
2010 354.4mm
2009 401.1mm
2008 386.1mm
2007 353.9mm
2006 402.9mm
2005 352.2mm
2004 390.9mm
2003 395.2mm
2002 332.1mm
2001 381.4mm
2000 403.6mm
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



Site 11, Merredin WA 2019

Observed climate information

Rainfall trial gsr (mm) 196mm

Derived climate information

Site 11, Merredin WA


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: 09-11-2020 18:18pm AEST