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Dry season affects results of wheat trials in Western Australia

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South Perth, Western Australia
February 15, 2007

Wheat varieties Wyalkatchem, Young and potential release WAWHT2750 proved to be the highest yielding varieties in the Great Southern and Lakes region in the 2006 Department of Agriculture and Food crop research trials.

Also performing well was the Department’s newest noodle wheat variety, Binnu, which yielded similar to Calingiri at Katanning and higher than Arrino at Newdegate.

Research officer Brenda Shackley, who will be speaking at the Department’s Jerramungup Regional Crop Update on 21 February, said the trials were sown between late May and mid July in Katanning, Newdegate and Jerramungup with the aim to test the performance on the wheat varieties across a range of sowing times.

A full review of the wheat research trial work will be provided during other Regional Crop Updates in Merredin, Jerramungup, Northam, Corrigin, Buntine, Esperance and Dongara over the next two weeks.

“The results of the trials saw average yields from 1.6 tonnes per hectare at Katanning and Newdegate and 0.6 tonnes per hectare at Jerramungup,” she said.

“The low yield results were as a result of the dry season. The season was relatively short with a late start to seeding and very dry spring in all areas.

“The higher yielding varieties tended to be those with a shorter maturity time.”

Ms Shackley said as sowing times were delayed, grain protein increased, as did screenings in most cases.

“The preliminary data shows that Wyalkatchem was not prone to high screening and EGA Eagle Rock, EGA Jitarning and Yitpi also performed well.

“Grain protein levels below 11.5 per cent were achieved for the noodle wheats, including Binnu, where they were sown in mid-June in the Katanning and Newdegate regions.

“The four soft wheat varieties grown in the Katanning trial, Bullaring, Datatine, EGA 2248 and EGA Jitarning, were all above the maximum of 9.5 per cent for all sowing times.

“This coupled with high screenings, severely reduced the gross income of the soft wheats.

“In a short season such as 2006, it is recommended not to grow soft wheat due to the high risk of not meeting the soft wheat standards.”

Regional Crop updates are supported by the Grains Research and Development Corporation.
 

 

 

 

 

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