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Wheat Variety fact sheet – Northern Zone
Coolah
Variety snapshot
EGA Gregory alternative
AH quality classification
Highly competitive grain yield and broad adaptation
Suited to end of April – beginning of May plantings
Excellent stem, stripe and leaf rust resistance
Good tolerance to acid soils
Low screenings and high test weights
Improved lodging tolerance over EGA Gregory
Breeders commentsCoolah is a higher yielding and more disease resistant alternative to the popular variety EGA Gregory. It is well adapted to south western and south eastern NSW and backs up this adaptation with a solid disease package of resistance to each of the rusts and intermediate resistance to yellow leaf spot. With tolerance to acid soils, Coolah has performed well across acidic, neutral and alkaline soils. It produces large and consistent grain size across a range of environments, resulting in low screenings loss and high test weight. Coolah is also slightly shorter in stature than EGA Gregory, resulting in a lower likelihood of lodging.
Coolah (tested as V07176-69) is derived from a cross involving EGA Gregory as the major parent, and is similar to EGA Gregory in most traits, but in early sown NVTs has shown a 6% yield advantage. Its maturity is driven by moderate photoperiod and vernalisation requirements and matches EGA Gregory in most environments. Sown at the end of April into early May, Coolah will maximise early moisture availability whilst still avoiding most of the frost risk of mid spring.
Seed AvailabilityCommercial quantities of Coolah may be available through AGT Affiliates, or your local retailer. Please consult the AGT website for AGT Affiliate contact details.
Coolah is able to be traded between growers upon the completion of a License Agreement as part of AGTs Seed Sharing initiative.
PBR and EPRCoolah is protected by Plant Breeders Rights (PBR) and all production (except seed saved for sowing) is liable to an End Point Royalty (EPR), which funds future plant breeding. Coolah growers will be subject to a Growers License Agreement that acknowledges that an EPR of $3.50/tonne + GST has to be paid on all production other than seed saved for planting.
Yield of Coolah versus control varieties in early sown trials Grain yield as % of site average (NVT long term MET analysis, 2011-2015)
Standability of Coolah and EGA Gregory in AGT trials where lodging was evident, 2014 -2015.
Scale 1 = Standing vertically, 9 = Fully lodged on the ground
110
108
106
104
102
100
98
96
94
6
5
4
3
2
1
0
Coolah EGA Gregory Flanker Lancer
Coolah EGA Gregory
South East New South Wales
South West New South Wales
Load
ing
Scor
e
Dookie 2014
Inverleigh 2014
Wagga 2014
Naracoorte 2014
Parkes 2015
Yanco 2015
Naracoorte 2015
Disease, agronomic and grain quality ratings for Coolah and control varieties
Coolah EGA Gregory Flanker Lancer
Stem Rust RMR MR RMR R
Stripe Rust RMR MR RMR MR
Leaf Rust MR MR MRMS RMR
Yellow Leaf Spot MSS S MSS MS
RLN (P. thornei) Resistance MS MSS MS MS
RLN (P. thornei) Tolerance TMT TMT TMT TMT
Crown Rot MSS S S MSS
Acid Soil Tolerance MT MT - MII
Maturity Mid-Late Mid-Late Mid-Late Mid-Late
Plant Height Tall Very Tall Very Tall Short
Lodging Resistance MRMS MS MS MR
Northern Zone Quality Classification
APH APH APH APH
South Eastern Zone Quality Classification
AH APH APH APH
Sprouting Tolerance I I I -
Black Point Resistance S S MS MRMS
Screening Risk Low-Moderate Low-Moderate Low-Moderate Low
Test Weight High High High High
R ResistantMR Moderately ResistantMS Moderately SusceptibleS SusceptibleVS Very Susceptible
T TolerantMT Moderately TolerantMI Moderately IntolerantI IntolerantVI Very Intolerant
Source / NSW DPI Winter Crop Variety Sowing Guide 2016, NVT and AGT data.
Contact details
James Whiteley, Marketing Manager, Eastern 0419 840 589
Russell Eastwood, Wheat Breeder 0427 716 632
End Point Royalty Office (08) 8313 6810
agtbreeding.com.au
Disclaimer / The information contained in this brochure is based on knowledge and understanding at
the time of writing. Growers should be aware of the need to regularly consult with their advisors on local
conditions and currency of information.