Drought Tolerant Maize for Africa (DTMA) The Africa Trial Sites network works in close collaboration with DTMA. On their website, you can find information trial sites, participant and partners, seed suppliers and publications. Note their geographic information systems module and maps for Africa.
Africa Trials Sites (Africats.org) is an initiative of the AgCommons consortium The ATS network is an initiative developed under the AgCommons umbrella of efforts to enhance location-specific agriculture. AgCommons is a network of partners working on information and communication technologies, including geographic information science and technology, for helping agricultural solutions reach small farmers in developing countries.