1 The Alliance of Bioversity International and International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Apartado Aereo 6713, Cali 763537, Colombia. Electronic address: a.fernando@cgiar.org.
2 The Alliance of Bioversity International and International Center for Tropical Agriculture (CIAT), Km 17 Recta Cali-Palmira, Apartado Aereo 6713, Cali 763537, Colombia.
3 IDS GeoRadar North America, 14818 West 6th Avenue, Unit 1-A Golden, Colorado 80401, USA.
4 International Institute of Tropical Agriculture, PMB 5320, Oyo Road, Ibadan, Oyo State 200001, Nigeria.