Monitoring powdery mildew resistance in barley varieties

2013
CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Jason Bradley (DAFWA)
Simon Ellwood (Curtin University)
Sanjiv Gupta (Murdoch University)
Andrea Hills (DAFWA)
Kithsiri Jayasena (DAFWA)
Blakely Paynter (DAFWA)
Geoff Thomas (DAFWA)
Year(s) 2013
Contributor West Midlands Group
Trial location(s) Regans Ford, WA
Monitoring powdery mildew resistance in barley varieties locations
Aims

To assess the impact of region and powdery mildew pathotype on field response of varieties with a range of resistance rankings to powdery mildew within the Western Australian barley producing zones.

Key messages
  • Powdery mildew severity at the WMG field site, maximum of only 7% leaf area affected on Baudin, did not allow differences between varieties to be seen, other than VS and S types (Baudin, Stirling, Vlamingh, Gairdner)
  • Laboratory seedling tests indicate that some of the genes postulated to provide resistance to powdery mildew in some commercial barley varieties may be compromised by some powdery mildew isolates.
  • Field screening of these varieties has shown that local differences in variety responses can occur but no widespread regional variation, or ‘breakdown’ in the field resistance of varieties to powdery mildew was observed in 2013.
  • The field response of commonly grown varieties at the WMG site and across the seven trials generally reflected the resistance rankings published in variety guides.
  • The differences identified in 2013 were of minor impact, or occurred in non-commercially relevant varieties, however they indicate that regional differences in variety response are possible due to variability within the pathogen population and continued monitoring is important to facilitate appropriate disease risk assessment and in-crop management.
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Lead research organisation Department of Agriculture and Food WA
Host research organisation West Midlands Group
Trial funding source GRDC DAW00229
Related program N/A
Acknowledgments

WMG for provision and preparation of the site and field day. DAFWA Geraldton research support unit staff for preparation and maintenance of field site. DPI Queensland for seed supply. DAFWA, Curtin and GRDC for capacity and funding (DAW00229, DAW00224, CU00017).


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

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Pest Management: Fungal
Trial type Experimental
Trial design Replicated

Regans Ford 2013

Sowing machinery

Hand sown.

Sow date 28 May 2013
Harvest date Not specified
Plot size 1m x 0.3m
Plot replication 3
Seed treatment Untreated seed (no foliar fungicide)
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
Regans Ford, WA Sand to sandy loam
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Regans Ford, WA Tenosol
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 Regans Ford WA
2013 151.9mm
2012 138.2mm
2011 136.9mm
2010 129.1mm
2009 142.1mm
2008 151.9mm
2007 107.9mm
2006 103.7mm
2005 142.2mm
2004 124.4mm
2003 142.9mm
2002 113.0mm
2001 115.0mm
2000 134.4mm
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

Regans Ford WA 2013


Observed climate information

Rainfall trial gsr (mm) 530mm

Derived climate information

Regans Ford WA

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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

2013 trial report



Trial last modified: 10-07-2019 13:18pm AEST