| Researcher(s) |
Nick Poole Darcy Warren |
|---|---|
| Year(s) | 2020 |
| Contributor | Field Applied Research (FAR) Australia |
| Trial location(s) |
Wallendbeen, NSW
|
To determine optimum foliar fungicide management for hyper-yielding canola.
Individual objectives specific to the trial are:
1. Determine the value of contrasting major gene blackleg resistance groups in HYC environments:
a. BC (45Y28 RR and 45Y93 CL) – largely ineffective major gene resistance (good minor gene resistance).
b. ABD (HyTTec Trifecta) – currently effective major gene resistance.
2. Determine the effect of fungicide management strategies on disease control (upper canopy blackleg and sclerotinia), grain yield and profitability.
ï‚· The Roundup Ready cultivar 45Y28 RR was consistently higher yielding than the TT cultivar HyTTec Trifecta.
ï‚· Hyperyielding Crops don’t always need a lot of fungicide:
o A two-spray strategy of Miravis Star at 20% Bloom followed by Prosaro at 50% Bloom yielded 0.3 t/ha more than the untreated control. At a cost >$100/ha, the profitability of this fungicide program would have been approximately break-even.
ï‚· Resistant cultivars are useful to reduce disease infection, in this case for Upper Canopy Blackleg:
o In this trial however the yield potential of 45Y28 RR outweighed the resistance benefit of HyTTec Trifecta which has major gene resistance still effective.
2019 Crop: Wheat.
Soil type & management: Red loam
Available Nitrogen (kg/ha) 0-60 cm: 140 kg/ha
Colwell P (mg/kg) 0-10 cm: 38
pH (CaCl2) 0-10 cm: 5.6
Organic Carbon (%) 0-10 cm: 1.7
| Lead research organisation |
Field Applied Research (FAR) Australia |
|---|---|
| Host research organisation |
Field Applied Research (FAR) Australia |
| Trial funding source | GRDC FAR2004-002SAX |
| Related program |
FAR Hyper Yielding Crops 2020-2022 |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | Oilseed: Canola |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow rate or Target density | 60 seeds/m2 |
|---|---|
| Sow date | 17 April 2020 |
| Harvest date | 28 November and 12 December 2020 |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
Sowing Fertiliser: 130kg/ha MAP Nitrogen: 17 April - 150 kg/ha SOA (30 kg/ha N) |
| Fungicide |
Please refer to report for treatment details |
| Seed treatment | Jockey + Poncho |
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.
