Maize being the highest yielding cereal crop in the world is of significant importance for countries like Pakistan, where rapidly increasing population, feed and fodder demand have already out stripped the available food, feed and fodder supplies. Maize in Pakistan is cultivated as multipurpose food and forage crop, generally by resource poor farmers using marginal land. Maize is currently the leading world cereal both in terms of production and productivity. In Pakistan, it is the third most important cereal after wheat and rice. Maize is an important crop in Pakistan in terms of its food for human, feed for poultry and fodder for livestock utilization and as a raw material for the industry.