1. Department of AgricultureUniversity of QueenslandBrisbaneQld4072Australia
2. Instituto Nacional de Investigaciones Agropecuarias (INIAP)Apdo.Postal2600QuitoEcuador
3. International Maize and Wheat Improvement Center (CIMMYT)Lisboa 27, Apdo. Postal 6‐64106600MéxicoD.F.México