The potato (Solanum tuberosum L.) is the worlds most important root and tuber crop worldwide. It is grown in more than 125 countries and consumed almost daily by more than a billion people.Hundreds of millions of people in developing countries depend on potatoes for their survival. Potato cultivation is expanding strongly in the developing world, where the potatoes easy cultivated and it nutritive content have made it a valuable food security and cash crop for millions of farmers.