Thailand owes its ideal agricultural conditions to its alluvial valley and plentiful water supply. Importantly, most of the staple food crops are often found in abundance in the tropical zones, including rice. Rice has always sustained the Thai people and formed a close bond with the way of life of the Thais for over 5,000 years. The grain cereal crop not only feeds the people throughout the land but also plays a very significant role in the history, culture, society, and economy of the Thai nation.