Big Sorghum is moving up on Big Oil in Texas. Ten-foot tall stalks of bioenergy sorghum, planted on thousands of acres, could march across Texas just as oil derricks once did, replacing black gold with green gold. [...] In addition to growing corn for biofuels, Texas can capitalize on decades of sorghum research at the Experiment Station, Murano said. The giant sorghum varieties being grown in experimental plots today are drought-tolerant, can be grown across the state, and offer high yields in ethanol.