Wheat Variety fact sheet – Northern Zone

Coolah

Variety snapshot

EGA Gregory alternative

APH 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

Tolerance to RLN (P. thornei)

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 environments across the northern cropping region and backs up this adaptation with a solid disease package of resistance to each of the rusts, tolerance to root lesion nematodes 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 3 to 8% yield advantage, depending on the region. Its maturity is driven by moderate photoperiod and vernalisation requirements and matches EGA Gregory in most environments, but can be quicker in Queensland, particularly central Queensland where it can head several days earlier. 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

115

110

105

100

95

90

85

6

5

4

3

2

1

0

Coolah EGA Gregory Flanker Lancer

Coolah EGA Gregory

North East NSW

North West NSW

Central QLD

South East QLD

South West QLD

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 S 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 - MR

Northern Zone Quality Classification

APH APH APH APH

Sprouting Tolerance I I I -

Black Point Resistance S S MS MS

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

Kerrie Gleeson, Marketing Manager, Northern 0427 958 259

Meiqin Lu, Wheat Breeder 0428 856 612

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.