Funding for this research was provided by:
National Institute of Food and Agriculture (2012-01823)
Received: 26 January 2018
Accepted: 13 August 2018
First Online: 23 August 2018
Ethics approval and consent to participate
: Institutional Review Board (IRB) approval was obtained prior to the implementation of project conditions. South Dakota State University IRB provided approval for South Dakota State University, University of Missouri, Purdue, Michigan State University and University of Nebraska-Lincoln. For these five universities, an information sheet was used in lieu of a consent form prior to participation in this study due to the low risk nature of the study. Ohio State University operated under the approval of Ohio State University IRB. For this university, all participants signed the approved consent form prior to participation in this study. No personal identifying information was linked to data. Any personal information is stored in locked file cabinets or password protected files.
: Not applicable
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.