1. International Crops Research Institute for the Semi-Arid Tropics (ICRISAT); Patancheru A.P. India
2. ICRISAT; Sahelian Center; Niamey Niger
3. Dep. of Biology, Faculty of Sciences; Univ. Abdou Moumouni; Niamey Niger
4. Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan Hubei China