Sorghum bicolor crop, also known as sweet sorghum (Fig. 4.9), is heat tolerant and is one of the most drought-resistant crops as it has the capability to remain dormant

during the driest periods, so it can grow in marginal land (Yuan et al., 2008). Sweet sorghum is one of the most promising candidates for bioethanol production in developing countries because it produces grains with high starch content, stalks with high sucrose content and leaves and bagasse with high lignocellulosic content (Smith and Buxton, 1993). It has been found that the production of ethanol from the hemicellulose and cellulose in bagasse is more favourable than burning it to make power in North China, although ethanol produced from the juice is very sensitive to the price of sugar (Gnansounou et al., 2005).