Agronomy and disease management to improve profitability in wheat on wheat systems

2012
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Mohammad Amjad (DAFWA)
Brenda Coutts (DAFWA)
Geoff Thomas (DAFWA)
Year(s) 2012
Contributor Facey Group
Trial location(s) Corrigin, WA
Agronomy and disease management to improve profitability in wheat on wheat systems locations
Aims

To determine the value of nitrogen and fungicide on the profitability of new wheat varieties with different disease resistances in wheat on wheat system.

Key messages

Early differences in Yellow Spot (YS) infection were evident at seedling/tillering stage, infection was greatest in the susceptible variety Yitpi; however, seasonal weather conditions and WSMV infection reduced any further impact from fungal leaf disease. Wheat streak mosaic virus (WSMV) and High Plains Virus (HPV) caused yellowing and stunting of plants across the trial with >75% WSMV infection evident in all plots, differences between varieties in incidence of infection were not significant. However, yield was greatest in varieties with lowest incidence of WSMV infection. WSMV and drought stresses severely reduced yield and as such results are not conclusive for nitrogen and fungicide applications in wheat on wheat systems. Similar DAFWA research in Northern Region (having no WSMV) reported that wheat with sub-optimal nitrogen and no fungicide application is more vulnerable to fungal leaf spot diseases, particularly in a susceptible variety, and may suffer yield losses (compared to optimal N and fungicide) in wheat on wheat systems. Further collaborative work will be planned in 2013 to determine the value of nitrogen and fungicide on the profitability of new wheat varieties with different disease resistances in wheat on wheat system.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC DAW00218
Related program N/A
Acknowledgments

This research is jointly funded by DAFWA and GRDC through 'Wheat Agronomy-building system profitability in the Western Region' (DAW00218). Thanks to Facey Group committee for approving and endorsing the wheat agronomy trials at Corrigin. Special thanks to Shane Hill for giving the trial site. Thanks to Bruce Haig and Rob deGruchy for trial management and technical support.


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

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop: Variety
  • Fertiliser: Rate
  • Fungicide: Application Method
  • Fungicide: Timing
Trial type Experimental
Trial design Replicated

Corrigin 2012

Sow rate or Target density 150 plants/m2 (i.e. Mace @ 80kg/ha)
Sow date 17 May 2012
Harvest date Not specified
Plot size 1.54m x 20m
Plot replication 3
Fertiliser

Agras NO 1 @ 110kgha; 50kg/ha Urea

Herbicide

Pre-emergent – 0.025kg/ha Chlorsulfuron, 1.5L/ha Trifluralin 480, 4L/ha Sprayseed 250 Post Emergent – 1.4L/ha Bromicide, 0.3L/ha Axial Post Emergent – 0.5L/ha Crusader + 0.3L/ha Prosaro

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
Leaf 1 area affected by yellow spot (%) Wheat streak mosaic virus incidence (%) Leaf 2 area affected by yellow spot (%) High plains virus incidence (%)
1 Calingiri 9.1 99 7.2 22
2 Emu Rock 14.7 99 20.1 16
3 Envoy 12.3 87 10.7 22
4 Cobra 4.6 91 5.1 55
5 Wyalkatchem 14.9 89 9.4 16
6 Mace 6.1 87 9.7 16
7 Yitpi 47 82 17.5 5
8 Corack 5.6 81 12.7 22
9 Magenta 6.5 78 10.4 22

High plains virus incidence %


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Leaf 1 area affected by yellow spot %


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Leaf 2 area affected by yellow spot %


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Wheat streak mosaic virus incidence %


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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Corrigin, WA Sandy
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Corrigin, WA Sodosol
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 Corrigin WA
2012 279.3mm
2011 247.8mm
2010 251.2mm
2009 284.0mm
2008 274.6mm
2007 276.1mm
2006 340.3mm
2005 302.3mm
2004 285.3mm
2003 300.1mm
2002 250.7mm
2001 269.5mm
2000 358.5mm
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.

Corrigin WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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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

2012 trial report



Trial last modified: 04-06-2019 15:43pm AEST