TY - SUM AU - Palafox-Caballero,A. AU - Sierra-Macias,M. AU - Rodríguez Montalvo,F.A. AU - Espinosa Calderón,A. AU - Gomez,M. AU - Cordova,H. ED - Arnel R. Hallauer International Symposium on Plant Breeding TI - Yield and adaptation of quality protein maize hybrids and varieties in Southeast Mexico SN - 970-648-106-0 PY - 2003/// CY - Mexico, DF (Mexico) PB - CIMMYT KW - Cultivation KW - AGROVOC KW - Grain KW - Yields KW - Humid zones KW - Maize KW - Planting KW - Quality KW - Tropical zones KW - Varieties KW - Zea mays KW - Genotypes KW - Hybrids N2 - In the humid tropics of Mexico, approximately 2.5 million hectares of maize are planted with an average yield of 2.0 t/ha. This yield is due largely to the limited use of improved seed varieties. Since 1996, INIFAP and CIMMYT have been conducting research to produce high quality protein maize (QPM) hybrids and varieties which contain 100% more lysine and tryptophan than the normal genotypes and essential amino acids for human consumption T2 - Book of abstracts : Arnel R. Hallauer international symposium on plant breeding ER -