Maize, Sorghum, Rice, Tobacco, Sugar beets & cotton.

 For each plant considered in particular: botanical classification, origin and evolution. Economic importance and uses. Crop trends (internationally and in Greece). Morphology. Growth. Adaptability (environmental and soil requirements, cultivation zones). Reproduction and breeding  (varieties characteristics). Crop techniques (rotation, soil tillage, sowing, fertilization, irrigation, herbicides, harvesting). Pest management.