TY - PRO AU - Valdivia Bernal,R. AU - Caro Velarde,F.J. AU - Vidal Martínez,V.A. ED - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) ED - Arnel R. Hallauer International Symposium on Plant Breeding TI - Participatory maize breeding in the development of intervarietal hybrids for slamm farmers using half-sib reciprocal recurrent selection U1 - 631.53 PY - 2003/// CY - Mexico, DF (Mexico) PB - CIMMYT KW - Experimentation KW - Farmers KW - AGROVOC KW - Grain yield KW - Maize KW - Seed crops KW - Small farms KW - Technology transfer KW - Plant breeding N2 - Because of the increasing cost of improved maize seed, 20% of the 65,000 ha sown in Nayarit, Mexico is sown with advanced generation seed, despite 20% losses of maize grain (Valdivia and Vidal 1995). Small farmers have decided a better choice is developing their own improved seed. This abstract describes the experience of a group of small farmes in developing, producing and planting their own maize hybrid seed ER -