1. Assistant Professor, Agricultural Science Center at Farmington, Dept. of Plant and Environmental Sciences, New Mexico State Univ., P.O. Box 1018, Farmington, NM 87499 (corresponding author). ORCID: .
2. Research Scientist, Institut Sénégalais de Recherches Agricoles, Centre de Saint Louis B.P. 240, St. Louis, Senegal.
3. Research Assistant, Africa Rice Center, Regional Station of Senegal, B.P. 96, St. Louis, Senegal.
4. Irrigated Rice Breeder and Coordinator of STRASA and GSR Projects in Africa, Africa Rice Center Regional Station of Senegal, B.P. 96, St. Louis, Senegal.
5. Distinguished Professor, Dept. of Biological Systems Engineering, Univ. of Nebraska–Lincoln, 241 L. W. Chase Hall, Lincoln, NE 68583-0726.