Rice Rice is the seed of a plant of the genus found in Asia. Scientific name: Oryza sativa Rice is consumed as a major food grains, which the world's population. Especially in Asia. From the year 2553 as a grain of rice which are grown to be the second largest worldwide. Vice from corn , rice is the most important cereal nutrition and calories have been human. Because the majority of corn grown for other purposes. This is not for human consumption, rice accounted for over a fifth of human energy consumption worldwide.