Tecnología y producción de semillas de híbridos y variedades sobresalientes de maíz de calidad proteínica (QPM) en México

The National Research Institute of Forestry, Agriculture and Livestock (INIFAP) and CIMMYT have been working in some researches to support and promote the intensive commercial use of new Quality Protein Maize (QPM) hybrids and varieties. INIFAP since autumn . winter season 1998/1999 in some different experimental stations developed a seed production program, and established 300 hectares. The results of this program were 530 tons of basic seed (500 t of seed of open pollinated varieties and 30 t of parental seed of hybrids). Researches of Seed Production obtained the complete information about technology of seed production for each hybrid and parental lines: best environment for seed production, detaseling, flowering synchronization, fertilizer treatment. INIFAP released twenty six varieties; and established a program of seed production of the registered seed of the materials: H- 519C, H-553C, H-365C, H-363C, H-364C, H-367C, H- 441C, H-469C, H-551C, H-368C, HV-521C, V-537C, V- 538C.