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Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Improving Wheat Quality Consistency by Density SegregationPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Paper number 051028, 2005 ASAE Annual Meeting . (doi: 10.13031/2013.18829) @2005Authors: Mark C. Siemens, Daniel A. Long Keywords: wheat, quality, density, segregation, landscape, variability, test weight, protein The end-use quality of grain crops can vary significantly within a given field. Research was conducted in Northeastern Oregon to determine the amount of wheat quality variability due to landscape position and if improvements in the consistency of wheat quality delivered at the farm gate could be made by wheat segregation. The study was conducted on soft white winter wheat collected from fields representing three different cropping systems including annual cropped no-till, chemical fallow no-till and conventionally tilled summer fallow. Samples were taken from four areas in each field representative of the hilltops, north facing slope, bottom and south facing slopes and replicated three times. A portion from each sample collected was then combined proportionally to form an additional sample representative of the grain collected from the entire field. This combined sample was then separated into four density fractions using a gravity table. Grain from each sample location, representing the entire field and the four density fractions were analyzed for wheat quality factors including test weight, kernel weight, kernel size, kernel hardness and protein content. A combine yield monitor and protein sensor were used to record yield and protein across the entire field. The results will be analyzed to determine the amount of field variability in wheat yield and quality and if segregating the grain by density is a feasible method of improving grain quality consistency. (Download PDF) (Export to EndNotes)
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