Determination of isoflavone (genistein and daidzein) concentration of soybean seed as affected by environment and management inputs.

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Journal of the science of food and agriculture, ISSN: 1097-0010, Vol: 97, Issue: 10, Page: 3342-3347

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Laurenz, Randy; Tumbalam, Pavani; Naeve, Seth; Thelen, Kurt D
article description
Isoflavones, such as genistein and daidzein, are produced in soybean seed [Glycine max (L.) Merr.] and may be associated with health benefits in the human diet. More research is required to determine the effect of agronomic soybean treatments on isoflavone concentration. In this study from 2012 to 2014 at Michigan State University and Breckenridge locations, we have evaluated agronomic input management systems which are marketed to increase or protect potential soybean grain yield, including: nitrogen fertilization, herbicide-defoliant, foliar applied fertilizer, a biological-based foliar application, foliar applied fungicide, foliar applied insecticide, a seed applied fungicide, and a maximized seed treatment that included fungicide and insecticide as well as an inoculant and lipo-chitooligosaccharide nodulation promoter, for their effect on soybean seed genistein and daidzein concentrations.