Forraje y grano de híbridos de maíz amarillos para valles altos de México

in this work the objective was to determine the productivity of grain and forage of five yellow three-way hybrids compared to white hybrids developed by fesc-unam and inifap, and the commercial hybrid buho from asgrow. three experiments were planted during 2009; two in cevamex for evaluating grain yield and the other in the fesc-unam for evaluating forage production. for yield, the combined analysis detected highly significant differences for hybrids, hybrid trials and interaction x trials (p≤0.01). the coefficient of variation was 17.7 per cent and the overall average of 7,113 kg/ha. the white hybrids puma 1167 and puma 1163 had the best grain yielding 9,549 kg/ ha and 8748 kg/ha, respectively. in contrast, the yellow hybrids had a similar performance shown in previous years and represent 136.0% and 112.4% with respect to h-48. the experiment to evaluate forage was planted with a density of 70,000 plants/ha. puma 1163 and buho had better forage production (p≤0.05) than the other hybrids evaluated. hybrid puma 1163 presented good yields of grain, green forage and dry matter by what could be used in dual purpose, grain and forage production.