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Adult plant resistance and strategic fungicide use for integrated management of cereal rust

2011
CC BY 4.0

Research organisation
Funding source
Southern Farming Systems
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Jon Midwood (SFS)
Nick Poole (FAR)
Tracey Wylie (FAR)
Year(s) 2011
Contributor Southern Farming Systems
Trial location(s) Inverleigh, VIC
Adult plant resistance and strategic fungicide use for integrated management of cereal rust locations
Aims
  • To define the expression of Adult Plant Resistance (APR) in a range of wheat cultivars in relation to environmental conditions and growth stage. 
  • To develop improved strategies for intervention with fungicides in the control of stripe rust and yellow leaf spot in susceptible and resistant wheat, and the communication of the strategies to industry stakeholders.
  • To develop a model to support growers on the relative merits of applying fungicide for disease control, which takes account of climate, expected yield, economic outlook and genetic inputs including Adult Plant Resistance (APR).
Key messages
  • Controlling low to moderate levels of stripe rust (15-20% infection severity) on top leaves of crop canopy did not result in a significant increase in yield.
  • The best control of stripe rust was given by disease management programmes that included a mid-stem elongation spray applied at GS 33 (third node). A spray for stripe rust applied at booting (GS 45) was too late to give good control.
  • Conversely, the booting spray gave significantly better control of stem rust than the third node spray. The two spray approach gave the best control of all three rusts: stripe, leaf and stem.
  • There was no evidence that the disease control correlated to yield, since the response to fungicide was no different whether the variety was generally resistant (Bolac) or susceptible (Chara).
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments

This is a Sydney University led project funded by GRDC.
We would like to place on record our grateful thanks to the host farmer Mr John Hamilton.
 
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
  • Seed treatment : Inoculant
Trial type Experimental
Trial design Unknown

Inverleigh 2011

Sow date 26 May 2011
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Variety
 Treatment 1
Grain yield (t/ha)
1 █ Bolac █ Untreated; No treatment 7.65
2 █ Yitpi █ Untreated; No treatment 7.85
3 █ Chara █ Untreated; No treatment 7.52
4 █ Bolac █ Untreated; Fungicide @ GS69 7.48
5 █ Yitpi █ Untreated; Fungicide @ GS69 7.28
6 █ Chara █ Untreated; Fungicide @ GS69 7.1
7 █ Bolac █ Untreated; Fungicide @ GS57 7.77
8 █ Yitpi █ Untreated; Fungicide @ GS57 7.46
9 █ Chara █ Untreated; Fungicide @ GS57 7.75
10 █ Bolac █ Untreated; Fungicide @ GS33+46 7.82
11 █ Yitpi █ Untreated; Fungicide @ GS33+46 7.59
12 █ Chara █ Untreated; Fungicide @ GS33+46 7.62
13 █ Bolac █ Jockey; No treatment 7.96
14 █ Yitpi █ Jockey; No treatment 7.86
15 █ Chara █ Jockey; No treatment 7.32
16 █ Bolac █ Jockey; Fungicide @ GS45 8.19
17 █ Yitpi █ Jockey; Fungicide @ GS45 7.87
18 █ Chara █ Jockey; Fungicide @ GS45 7.85
19 █ Bolac █ Jockey; Fungicide @ GS33+45 7.54
20 █ Yitpi █ Jockey; Fungicide @ GS33+45 7.67
21 █ Chara █ Jockey; Fungicide @ GS33+45 7.34
22 █ Bolac █ Jockey; Fungicide @ GS33 7.33
23 █ Yitpi █ Jockey; Fungicide @ GS33 7.35
24 █ Chara █ Jockey; Fungicide @ GS33 7.96

Grain yield t/ha

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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Inverleigh, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Inverleigh, VIC 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 Inverleigh VIC
2011
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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.

Inverleigh VIC

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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: 30-10-2019 15:28pm AEST