Funding for this research was provided by:
USDA Agricultural Research Service (Project 6401-53000-003-00D)
Received: 27 December 2017
Accepted: 14 March 2018
First Online: 16 May 2018
Ethics approval and consent to participate
: The Delta State University Institutional Review Board approved the study protocol (number 12–024) and all participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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