Our Varieties
Calibre
Wheat
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Elite grain yield
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Derived from popular variety Scepter
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Very widely adapted, suited to all growing regions of WA
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Longer coleoptile than most commonly grown varieties
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Good sprouting tolerance, similar to Scepter, better than Vixen
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Improved powdery mildew resistance over Scepter and Vixen
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Good yellow spot resistance for wheat on wheat situations
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Quick-mid maturity, similar to Mace
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AH quality classification
For full details download the Calibre fact sheet
Coleoptile length & effect of sowing depth on wheat - info sheet
Seed Availability
Commercial quantities of Calibre may be available through AGT Affiliates, or your local retailer.
Calibre is able to be traded between growers upon the completion of a License Agreement as part of AGT’s Seed Sharing™ initiative.
PBR and EPR
Calibre is protected by Plant Breeders Rights (PBR) and all production (except seed saved for planting) is liable to an End Point Royalty (EPR), which funds future plant breeding.
Calibre growers will be subject to a Growers License Agreement that acknowledges that an EPR of $3.5/tonne + GST has to be paid on all production other than seed saved for planting.
Breeders comments
Calibre (tested as RAC2721) is the first variety derived from Scepter to hit the market and is the next step for growers looking to achieve the gains they made by switching from Mace to Scepter.
Not only is Calibre the next step in grain yield, it also offers growers the opportunity to access longer coleoptile genetics in an elite yielding background. The coleoptile length of a wheat variety is a factor that limits how deep you can plant, so, it’s not surprising that there are many instances where a longer coleoptile is needed: when there is a chance of furrow fill by wind or rain; when chasing receding moisture profiles; or when trying to achieve adequate pre-emergent herbicide separation. Magenta is a good example of a variety with a longer coleoptile that has been used in the past by growers to manage such situations but is now outclassed. Calibre has a similar coleoptile length to Magenta but with market leading yield performance.
Calibre is slightly taller than Scepter, so growers may observe some leaning or lodging when Calibre is grown in higher yielding situations.
With elite grain yield, improved coleoptile length, AH quality, very wide adaptation, and a disease package similar to its parent Scepter, Calibre makes an excellent replacement for Scepter. The yellow spot resistance of Calibre is good, achieving a very similar level of resistance to Scepter. Calibre also offers a valuable improvement in stem rust and powdery mildew resistance over Scepter and Vixen.