Erect Head Control in April Sown Wheat

2020

Research organisaton
Funding source

Trial details

Researcher(s) Nick Poole
Darcy Warren
Year(s) 2020
Contributor Field Applied Research (FAR) Australia
Trial location(s) Millicent, SA
Erect Head Control in April Sown Wheat locations
Aims

To assess the principal causes of erect heads in April sown wheat crops

Individual objectives specific to the trial are:
- To determine the value of Barley Yellow Dwarf Virus (BYDV) tolerance in HRZ wheat crops using a tolerant (cv Manning) and a non-tolerant (cv RGT Relay) cultivar.
- To assess the connection between erect heads and stem base disease complex e.g. crown rot, eyespot, sharp eyespot in the presence of different stem base fungicide applications.

Key messages

• The long season UK wheat RGT Relay out yielded Manning but none of the treatments of insecticide or fungicide produced any significant difference in grain yield.
• There were clear indications that symptoms of BYDV were present in the RGT Relay that were not present in the BYDV tolerant variety Manning, but these differences did not result in a yield effect.
• BYDV like symptoms became more apparent in the canopy as the crop began to grain fill with less BYDV observed in the insecticide treated plots in RGT Relay (non-tolerant).
• Little or no BYDV like symptoms were observed in the Manning.
• There was no significant expression of erect heads in this trial or significant differences in erect head numbers.
• ELISA testing confirmed Cereal yellow dwarf virus (CYDV-prv) presence but not Barley yellow dwarf virus (BYDV-pav).

Millicent SA 2020

Rotation position: 1st Cereal after canola, 2018 wheat.
Soil type & management: Neutral-slightly alkaline Organosol (Peat soil) – high organic matter (0-30cm).

Lead research organisation Field Applied Research (FAR) Australia
Host research organisation N/A
Trial funding source GRDC FAR2004-002SAX
Related program FAR Hyper Yielding Crops 2020-2022
Acknowledgments N/A
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
  • Fungicide: Type
  • Insecticide: Timing
  • Insecticide: Type
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Millicent 2020

Sow rate or Target density 180 seeds/m2
Sow date 16 - 18 April 2020
Harvest date 4 - 6 January 2021
Plot size Not specified
Plot replication Not specified
Fertiliser

Please see trial report for treatment details

Fungicide

GS31*- Opus 800mL/ha

14 September - Aviator Xpro 400mL/ha
28 October - Radial 840mL/ha

Seed treatment Vibrance ± Gaucho
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
Millicent, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Millicent, SA Organosol
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.

Millicent 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

2020 trial report



Trial last modified: 21-04-2023 10:06am AEST