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Catalogue: GRDC Updates
3 - 4 days later than optimum Answers to the perceived effects of windrowing 3 - 4 days later than the optimum time on yield and oil content included answers ranging between having little or no effect on either oil or yield, to losing oil to levels as low as 10% final oil content whilst at the same time others believed there were possible gains totalling 60% (and in one instance 75%) oil content... Earlier analysis of 140 respondents examining correlations with years of experience in the canola industry revealed there to be no significant difference in responses to oil and yield related to optimal windrowing time... The trial results support previous research findings, showing the significant yield and oil penalties, and potential economic losses to the grower that may occur when windrowing earlier than industry guidelines...
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Catalogue: GRDC Updates (South)
Supported by Research Update sponsored by.. In summary there was no "concerning" level of seed loss observed at any trial or timing, correlating well with the yield data... In summary, yield loss as a result of delayed windrow timing assumedly through shattering has not been demonstrated except in one extreme case with very late timings with colour change in excess of 100%...
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Catalogue: GRDC Publications
In summary, 20 trials have now recently been undertaken across a number of seasons and locations in NSW. None of them have demonstrated S responses in yield or oil %. This does not exclude deficiency and yield penalties from occurring but does highlight that the frequency and the likelihood is not high... Delaying any action that has the potential to cease grain fill will see more seeds achieve their maximum size and improve yield... In summary there was no 'concerning' level of seed loss observed at any trial or timing, correlating well with the yield data...
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Catalogue: GRDC Updates
Keywords: canola, windrowing, windrow, swathe, timing, direct head, shattering, yield loss, harvesting loss, desiccation, Pod Ceal TM.. Windrowing timing can have a significant positive impact on yield and profitability of canola... Yields of the whole treatment areas were measured with mobile weigh bins with the exception of Nyngan which was weighed over a weighbridge...
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Catalogue: GRDC Updates
One common understanding of the impact of timing was simply that windrowing too early reduced oil contents and by windrowing later, yield may be lost through excessive shelling and shattering... Over the past three seasons GOA has undertaken six trials to help examine the impact of windrowing timing on oil, yields and profitability... Yields were measured with mobile weigh bins with the exception of Nyngan - which was weighed over a weighbridge...
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