Disease risk prediction evaluations for phytophthora root rot of chickpeas

2016

Research organisaton
Funding source

Trial details

Researcher(s) Sean Bithell (NSW DPI)
Steven Harden (NSW DPI)
Kristy Hobson (NSW DPI)
Willy Martin (Dep Ag )
Alan McKay (SARDI)
Kevin Moore (NSW DPI)
Year(s) 2016
Contributor Department of Primary Industries NSW
Trial location(s) Hermitage Research Station, QLD
Further information View external link
Disease risk prediction evaluations for phytophthora root rot of chickpeas locations
Aims

To report on the 2016 season assessment of the capability of this test to:

  1. detect Pm in soil from commercial paddocks, and
  2. predict the risk of PRR disease and potential yield losses in chickpea.
Key messages
  • Phytophthora medicaginis (Pm) inoculum concentrations decline to low levels (within 6−12 months) of a diseased crop and the distribution becomes more uneven.
  • Within 6−12 months, survival populations of Pm (oospores) can be below detectable levels based on both soil DNA and isolate baiting methods.
  • These inoculum decline factors limit the ability of PreDicta B to identify paddocks that have a significant disease risk.
  • The Pm test is useful for in-crop disease diagnosis when the pathogen is active and inoculum decline has not taken place.
     
Hermitage Research Station QLD 2016

Trial design randomised complete block design with four replicates. Each plot (15 m2 ) consisted of four in-furrow inoculated rows; four-row buffer plots were sown around each plot to limit inoculum spread between plots. At sowing and harvest, soil cores (0−150 mm) were collected from the two middle rows of each plot, pooled and analysed for soil Pm concentration by SARDI. PRR disease assessments (% infected plants, or row length of severely infected plants) and grain yields were measured from those same rows

Lead research organisation Department of Primary Industries NSW
Host research organisation N/A
Trial funding source GRDC DAN00172,DAS00137
Related program Managing crop disease - improving chickpea pathogen resistance (PRR)
Acknowledgments

This research was part of the projects National improved molecular diagnostics for disease management (DAS00137) and Managing crop disease – improving chickpea pathogen resistance (PRR) (DAN00172), with joint investment by NSW DPI and GRDC. We thank growers for their significant contributions through both trial cooperation, paddock access and the support of the GRDC. Assistance provided by Gail Chiplin, Paul Nash, Amy Alston, Amy Trebilco, Belinda Rowe (NSW DPI), and Taylor Mentha (DAFQ) is greatly appreciated.


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

Method

Crop type Grain Legume: Chickpeas
Treatment type(s)
  • Crop: Variety
  • Irrigation: Type
  • Pest Management: Other Pests
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Hermitage Research Station 2016

Sow rate or Target density 32 plants/m2
Sow date 22 July 2016
Harvest date 15 December 2016
Plot size Not specified
Plot replication 4
Plot blocking Randomised complete block
Plot randomisation Yes
Other trial notes

This research paper is an extract from the publication Northern grains Research Results 2017, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/ngrt-results
 

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
Hermitage Research Station, QLD Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hermitage Research Station, QLD 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 Hermitage Research Station QLD
2016 247.8mm
2015 235.8mm
2014 235.3mm
2013 238.7mm
2012 238.9mm
2011 250.6mm
2010 262.7mm
2009 238.5mm
2008 237.4mm
2007 248.9mm
2006 243.7mm
2005 260.8mm
2004 279.3mm
2003 345.5mm
2002 376.5mm
2001 463.9mm
2000 525.4mm
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

Derived climate information

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

Hermitage Research Station QLD

CAUTION: Trial site locality unknown; Climate data sourced from Department of Primary Industries NSW 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

2016 trial report



Trial last modified: 08-06-2023 09:28am AEST