1. Facultad de Telemática, Universidad de Colima, Colima 28040, Mexico
2. International Maize and Wheat Improvement Center (CIMMYT), Km 45, Carretera Mexico-Veracruz, El Batan, Texcoco 56237, Mexico
3. VSN International, Hemel Hempstead HP2 4TP, UK
4. Centro de Investigación en Computación (CIC), Instituto Politécnico Nacional (IPN), Mexico City 07738, Mexico
5. Centro Universitario de Ciencias Exactas e Ingenierías (CUCEI), Universidad de Guadalajara, Guadalajara 44430, Mexico
6. Department of Plant Science Mathematical and Statistical Methods—Biometrics, P.O. Box 16, 6700AA Wageningen, The Netherlands
7. Colegio de Postgraduados, Montecillos 56230, Mexico