Funding for this research was provided by:
West African Agricultural Productivity Program
Proma?s SAM-MCR Project
Text and Data Mining valid from 2019-02-07
Received: 16 October 2018
Accepted: 28 January 2019
First Online: 7 February 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The authors declare that the experiments comply with the current laws of the countries in which the experiments were performed.