TY - REP AU - Pandey,S. AU - Ceballos,H. AU - Granados,G. AU - Vasal,S.K.|McLean,S.D. ED - Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico) TI - Development and improvement of lowland tropical maize populations by CIMMYT's South American Regional Maize Program T2 - CIMMYT Maize Program Special Report SN - 968-6923-39-X U1 - 633.1553 PY - 1994/// CY - Mexico, DF (Mexico) PB - CIMMYT KW - Acid soils KW - Lowland KW - Research projects KW - Resistance to injurious factors KW - Selection KW - South America KW - Tropical zones KW - Zea mays KW - AGROVOC KW - Plant breeding KW - CIMMYT ER -