Managing Pratylenchus/root diseases

2011

Research organisaton
Funding source

Trial details

Researcher(s) Amanda Cook (SARDI)
Sjaan Davey (SARDI)
Alan McKay (SARDI)
Ian Richter (SARDI)
Wade Shepperd (SARDI)
Year(s) 2011
Contributor South Australian Research and Development Institute
Trial location(s) Minnipa, SA
Managing Pratylenchus/root diseases locations
Aims

To develop reliable and efficient field trial protocols to determine the tolerance (nematode effect on yield) of new varieties to Pratylenchus neglectus, P. thornei and CCN plus calibrate the bioassays used to screen varieties for resistance (the effect a variety has on nematode levels in soil).

Key messages
  • Yield losses caused by Pratylenchus are still being defined, in the meantime growers should focus on implementing management strategies to reduce impact of Rhizoctonia; most of these also reduce impact of Pratylenchus.
  • Cereal cyst nematode (CCN) is a potential risk this year, particularly in continuous cereal paddocks with high frequency of susceptible varieties e.g. Wyalkatchem.
  • Take-all risk is also increasing in continuous cereal and cereal/grassy pasture rotations; this is driven by above average growing seasons on Eyre Peninsula for the past few seasons.
  • Field trials are underway to assess the yield losses caused by Pratylenchus in current varieties. Results of the first trials indicate yield losses caused by Pratylenchus in 2011 were relatively small; this program is continuing to determine if losses are higher in different seasons.
  • Pratylenchus multiplication varies between varieties, check the 2012 Cereal Variety Disease Guide for the latest resistance ratings. Note; some barley varieties are better hosts for P. neglectus than previously thought.
Minnipa SA 2011 Barley

Wheat was sown on 24 May at 180 plants/m2 and barley at 145 plants/m2 , with 50 kg/ ha DAP. • Treatments - 29 wheat and 4 barley varieties were sown in split plots with high and low levels of P. thornei. • Measurements – yield plus initial and final nematode numbers per gram of soil.

Lead research organisation South Australian Research and Development Institute
Host research organisation N/A
Trial funding source GRDC
Related program Eyre Peninsula Farming Systems
Acknowledgments N/A
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop types Cereal (Grain): Barley Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Variety
  • Pest Management: Nematodes/other soil borne insects
Trial type Experimental
Trial design Replicated

Minnipa 2011 Barley

Sow rate or Target density Wheat: 180 plants/m2; Barley: 145 plants/m2
Sow date 24 May 2011
Harvest date Not specified
Plot size 12m x 1.5m
Plot replication 5
Fertiliser

50 kg/ ha DAP.

Minnipa 2011 Wheat

Sow rate or Target density Not specified
Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Fertiliser 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
Minnipa, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Minnipa, SA Calcarosol
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 Minnipa SA
2011 383.4mm
2010 385.3mm
2009 391.3mm
2008 330.4mm
2007 331.2mm
2006 334.5mm
2005 288.0mm
2004 296.1mm
2003 293.2mm
2002 283.3mm
2001 343.9mm
2000 389.0mm
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.

Minnipa SA

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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

2011 trial report



Trial last modified: 19-05-2023 18:10pm AEST