[ASC-media] ZONING IN ON BREEDING: Crop Doctor
brendon at iinet.net.au
Wed Nov 22 02:28:03 CET 2006
ZONING IN ON BREEDING 22.11.06<?xml:namespace prefix = o ns =
Segmenting Australias wheatbelt into classification regions enables
breeding programs to develop varieties suited to specific agro-ecological
Addressing the Grains Research and Development Corporation supported growers
day at the Australian Cereal Chemistry Conference, Richard Williams of
Curtin University said Australias dynamic wheat breeding industry was still
changing and he proposed further changes to its current classification
Completing his PhD, he is testing whether Australias wheatbelt could be
divided into zones that reduced environmental variance more than the
existing seven classification zones.
His research has been funded by Australian Wheat Board (International) Ltd
and all Australian wheat breeding programs contributed data.
Mr Williams said variety breeding had changed due to target regions
expanding, a greater diversity of germplasm being used and rationalisation
of testing regimes, which could potentially increase quality variability.
He compared the group of current classification zones to divisions of the
wheatbelt based on sowing recommendations, agro ecological data, annual
rainfall, seasonal climatic profiles, grain filling maximum temperatures and
A conclusion is that Australias wheat variety classification system could
benefit from focusing its boundaries on such environmental divisions of the
He believes that such divisions could offer improved quality consistency, an
important feature of being competitive in the international marketplace.
In addition, the best ranked divisions comprised less than seven zones,
creating potential efficiencies in the new variety classification process.
Mr Williams believes this would save costs for plant breeding companies and
increase benefits for growers.
The Crop Doctor is GRDC Managing Director, Peter Reading, Tel 02 6272 5525
Further Information: Richard Williams, Tel 08 9266 4465
GRDC REF: CDOct061.doc/Angus
Brendon Cant & Associates
Public Relations & Marketing
4 Gugeri St
Claremont WA 6010
Tel 08 9384 1122
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.409 / Virus Database: 268.14.11/543 - Release Date: 20/11/2006
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the ASC-media