Variety selection and grain yield potential are key to manage Septoria tritici blotch (STB) in wheat in the medium and low rainfall regions of Southern Australia

2023
CC BY 4.0

Research organisaton
Funding source

Trial details

Researcher(s) Hari Dadu
Tara Garrard
Grant Hollaway
Julian Taylor
Contact phone 0343443111
Year(s) 2023
Contributor Agriculture Victoria
Trial location(s) Booleroo (LRZ), SA
Hart (MRZ), SA
Kinnabulla (LRZ), VIC
Longerenong (MRZ), VIC
Related trials
Variety selection and grain yield potential are key to manage Septoria tritici blotch (STB) in wheat in the medium and low rainfall regions of Southern Australia locations
Aims

To evaluate the impact of Septoria tritici blotch on wheat of different resistant ratings and determine yield loss in the MRZ and LRZ of the Southern Australia.

Key messages
  • Septoria tritici blotch reduced grain yield (5-28%) in wheat varieties in Vic, but not in SA during 2023.
  • The severity and associated losses were highly related to seasonal rainfall, genetic resistance and grain yield potential of the variety.
Lead research organisation Agriculture Victoria
Host research organisation Agriculture Victoria
Trial funding source GRDC DJP2104_004RTX
Related program N/A
Acknowledgments

This research was co-invested by the Victorian Government (Agriculture Victoria), South Australian Government (SARDI), and GRDC through the ‘Epidemiology of Septoria Tritici Blotch in the low and medium rainfall zones of the Southern region to inform IDM strategies’ (DJPR2104_004RTX).

Thanks to Agriculture Victoria’s field crops pathology team Horsham and the Birchip Cropping Group team in Victoria and SARDI, Hart Field Site and Upper North Farming Systems (UNFS) in South Australia for technical and continued support in trial management. Thanks also to our research collaborators Drs Mark Mclean (Project Platypus), Andrew Milgate (NSW DPI), Julian Taylor (University of Adelaide) and Tara Garrard (SARDI) for their scientific inputs.


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
Trial type Experimental
Trial design Randomised,Blocked

Booleroo (LRZ) 2023

Sow rate or Target density 150 plants/m2
Sowing machinery

Knife points, press wheels, 30 cm row spacing

Sow date 1 June 2023
Harvest date 25 November 2023
Trial design method SPD Split Plot Design
Plot size 1.9m x 10m
Plot replication 6
Psuedoreplication N
Plot blocking Ranges
Plot randomisation Y
Fertiliser

MAP and Urea applied to achieve 4 t/ha grain yield.

Fungicide

Seed treatment : Jockey Stayer® (Fluquinconazole 167g/L at the rate of 300 mL/100 Kg seed)

Foliar application at Z31 : Soprano® (Epoxiconazole 500 g/L at the rate of 125 mL/ha) 

Foliar application at Z39 : Elatus Ace® (Benzovindiflupyr 40g/L + Propiconazole 250 g/L at the rate of 500 mL/ha)

Hart (MRZ) 2023

Sow rate or Target density 150 plants/m2
Sowing machinery

Knife points, press wheels, 30 cm row spacing

Sow date 18 May 2023
Harvest date 3 November 2023
Trial design method SPD Split Plot Design
Plot size 1.9m x 10m
Plot replication 6
Psuedoreplication N
Plot blocking Ranges
Plot randomisation Y
Fertiliser

MAP and Urea applied to achieve 4 t/ha grain yield.

Fungicide

Seed treatment : Jockey Stayer® (Fluquinconazole 167g/L at the rate of 300 mL/100 Kg seed)

Foliar application at Z31 : Soprano® (Epoxiconazole 500 g/L at the rate of 125 mL/ha) 

Foliar application at Z39 : Elatus Ace® (Benzovindiflupyr 40g/L + Propiconazole 250 g/L at the rate of 500 mL/ha)

Kinnabulla (LRZ) 2023

Sow rate or Target density 150 plants/m2
Sowing machinery

Knife points, press wheels, 30 cm row spacing

Sow date 1 May 2023
Harvest date 21 December 2023
Trial design method SPD Split Plot Design
Plot size 1.9m x 10m
Plot replication 6
Psuedoreplication N
Plot blocking Ranges
Plot randomisation Y
Fertiliser

MAP and Urea applied to achieve 4 t/ha grain yield.

Fungicide

Seed treatment : Jockey Stayer® (Fluquinconazole 167g/L at the rate of 300 mL/100 Kg seed)

Foliar application at Z31 : Soprano® (Epoxiconazole 500 g/L at the rate of 125 mL/ha) 

Foliar application at Z39 : Elatus Ace® (Benzovindiflupyr 40g/L + Propiconazole 250 g/L at the rate of 500 mL/ha)

Longerenong (MRZ) 2023

Sow rate or Target density 150 plants/m2
Sowing machinery

Knife points, press wheels, 30 cm row spacing

Sow date 26 April 2023
Harvest date 4 December 2023
Trial design method SPD Split Plot Design
Plot size 1.9m x 10m
Plot replication 6
Psuedoreplication N
Plot blocking Ranges
Plot randomisation Y
Fertiliser

MAP and Urea applied to achieve 4 t/ha grain yield.

Fungicide

Seed treatment : Jockey Stayer® (Fluquinconazole 167g/L at the rate of 300 mL/100 Kg seed)

Foliar application at Z31 : Soprano® (Epoxiconazole 500 g/L at the rate of 125 mL/ha) 

Foliar application at Z39 : Elatus Ace® (Benzovindiflupyr 40g/L + Propiconazole 250 g/L at the rate of 500 mL/ha)

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
Booleroo (LRZ), SA Not specified
Hart (MRZ), SA Not specified
Kinnabulla (LRZ), VIC Not specified
Longerenong (MRZ), VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Booleroo (LRZ), SA Sodosol
Hart (MRZ), SA Chromosol
Kinnabulla (LRZ), VIC Calcarosol
Longerenong (MRZ), VIC Vertosol
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

Longerenong (MRZ) VIC 2023


Observed climate information

Rainfall avg ann (mm) 414mm
Rainfall avg gsr (mm) 286mm
Rainfall trial total (mm) 455mm
Rainfall trial gsr (mm) 331mm

Derived climate information

Booleroo (LRZ) VIC

Hart (MRZ) VIC

Kinnabulla (LRZ) VIC

Longerenong (MRZ) VIC

Booleroo (LRZ) VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Hart (MRZ) VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Kinnabulla (LRZ) VIC

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Longerenong (MRZ) VIC

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

2023 trial report



Trial last modified: 14-08-2024 10:58am AEST