TY - BK AU - Ramakrishna,B. TI - Seminario Mejoramiento para Tolerancia a Factores Ambientales Adversos en el Cultivo del Maiz, 3; Quito, Ecuador; 14-18 Sep 1987 U1 - 633.153 PY - 1988/// CY - Quito (Ecuador) PB - IICA, PROCIANDINO, KW - Acid soils KW - Aluminium KW - Andean zone KW - Bolivia KW - Brazil KW - Colombia KW - Cooling KW - Drought resistance KW - Ecuador KW - Germplasm KW - AGROVOC KW - Hail KW - Heat KW - Mexico KW - Moisture content KW - Nitrogen KW - Peru KW - Plant developmental stages KW - Selfing KW - Temperature resistance KW - Toxicity KW - Venezuela KW - Zea mays KW - Plant breeding KW - CIMMYT N1 - Tables, graphs, illustrations, maps, list of participants ER -