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| Researcher(s) |
Robyn Shapland Steven Simpfendorfer |
|---|---|
| Year(s) | 2016 |
| Contributor | Department of Primary Industries NSW |
| Trial location(s) |
Garah, NSW
|
| Further information | View external link |
| Related trials |
|
Crown rot (CR), caused predominantly by the fungus Fusarium pseudograminearum (Fp),
remains a major constraint to winter cereal production in the northern grains region. Cereal
varieties differ in their resistance to crown rot, which can have a significant impact on their
relative yield in the presence of this disease.
This experiment was one of 11 conducted by NSW DPI in 2016 across central/northern NSW
extending into southern Qld; to examine the impact of crown rot on the yield and quality of
four barley, three durum and 13 bread wheat varieties.
Key findings
• Yield loss from crown rot ranged from not significant in the barley varieties SpartacusA and CommanderA
up to around 20% in the barley variety CompassA and bread wheat varieties EGA GregoryA and
LRPB FlankerA.
• Bread wheat variety choice affected yield in the presence of high levels of crown rot infection with five
entries being between 0.32 t/ha to 0.57 t/ha higher yielding than the susceptible bread wheat variety
EGA GregoryA.
• Grain protein levels varied from 11.3% in MitchA up to 14.9% in LRPB SpitfireA. Crown rot infection did not
affect protein levels in any entry.
• Crown rot infection increased the level of screenings in all four barley varieties and the two bread wheat
varieties SunmateA and LRPB ReliantA.
Conclusions:
Cereal crop and variety choice provided a 7–13% yield benefit over growing the susceptible
bread wheat variety EGA GregoryA under high levels of crown rot infection at Garah in 2016.
This could have maximised profit in this growing season, but will not reduce inoculum levels
for subsequent crops because all winter cereal varieties are susceptible to crown rot infection.
Winter cereal crop and variety choice is therefore not the sole solution to crown rot, but rather
just one element of an integrated management strategy to limit losses from this disease.
Treatments:
Varieties (20)
• Four barley varieties: CommanderA, CompassA, La TrobeA and SpartacusA.
• Three durum varieties: JandaroiA and LillaroiA plus the numbered line 190873.
• Thirteen bread wheat varieties: EGA GregoryA, LRPB FlankerA, BeckomA, CoolahA,
SunmateA, LRPB LancerA, LRPB ReliantA, LRPB GauntletA, LRPB SpitfireA, MitchA,
SuntopA and SunguardA; (listed in order of increasing resistance to crown rot) plus one
numbered line LPB12-0494.
| Lead research organisation |
Department of Primary Industries NSW |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC DAN00175 |
| Related program | N/A |
| Acknowledgments |
This experiment was part of the project National crown rot epidemiology and management |
| Other trial partners | Bill and Andrew Yates |
| Crop type | Cereal (Grain): Barley |
|---|---|
| Treatment type(s) |
|
| Trial type | |
| Trial design |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser | Not specified |
| Inoculant | Not specified |
| Other trial notes |
TREATMENTS Varieties (20) • Four barley varieties: CommanderA, CompassA, La TrobeA and SpartacusA. RESULTS Yield In the no added CR treatment, yield ranged from 3.54 t/ha in the barley variety CommanderA
|
| Sow date | 10 June 2016 |
|---|---|
| Harvest date | 23 November 2016 |
| Plot size | Not specified |
| Plot replication | Not specified |
| Fertiliser |
60 kg/ha Urea and 60 kg/ha Granulock 12Z (treated with 400 mL/ha of flutriafol) at sowing |
| Inoculant | Added or no added crown rot at sowing using sterilised durum grain colonised by at least five different isolates of Fp at a rate of 2.0 g/m of row at sowing. |
| Other trial notes |
TREATMENTS Varieties (20) • Four barley varieties: CommanderA, CompassA, La TrobeA and SpartacusA. RESULTS Yield In the no added CR treatment, yield ranged from 3.54 t/ha in the barley variety CommanderA
|
| # | Variety |
|---|
| Rainfall avg ann (mm) | 603mm |
|---|---|
| Rainfall trial gsr (mm) | 174mm |
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.
Plant Breeders’ Rights (PBR)
Some crop varieties used in research trials may be covered by Plant Breeders' Rights (PBR). Users should confirm PBR status of relevant varieties by searching the IP Australia PBR database, http://pericles.ipaustralia.gov.au/pbr_db/ or Variety Central (http://varietycentral.com.au/) and contacting variety owners for further information if required. Where possible, varieties have been listed according to their registered PBR name, although OFT cannot and does not guarantee that the information is accurate or complete.
Note that PBR cover is administered through the Plant Breeders’ Right Act 1994 (