Phenology and Biomass Production of Adapted and Non-Adapted Tropical Corn Populations in Central Iowa

摘要: Biofuel production in the midwestern United States has largely focused on corn (Zea mays L.) grain for ethanol and more recently, stover lignocellulosic ethanol. Tropical refers to adapted from tropical regions. Growing germplasm temperate environments is not attractive yield, but shows promise biomass through taller vigorous plants with thick stems long leaves. The comparison between populations their counterparts a focus yet been explored under Iowa growing conditions. This study refines accuracy of leaf collar method, characterizes adaptation by evaluating crop development production. Therefore, field trials were established central during 2014 2015 seasons. Adapted non-adapted versions three populations, Tuxpeno, Suwan, Tuson, planted at dates evaluate phenology potential U.S. Plant height correlated well vegetative total biomass. had advanced development, while greater yield. Non-adapted flowered later, 22% average (4.6 Mg ha–¹ than adapted), 43% non-grain average, up 20 (6 yielded grain. high as feedstock Gen2 biofuels Iowa.