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. Associate of corn [1 ] Rice is the most important cereal in the field of human nutrition and the calories . Because the majority of corn grown for other purposes . Rice is not for human consumption or energy than a fifth of global human consumption [2 ] . Genetic evidence shows that the introduction of rice planted on about 8,200 to 13,500 years ago in the valley of the river Zhu Jiang of China previous archaeological evidence suggests . Rice cultivation is introduced in the Yangtze River valley in China. News spread from East Asia to Southeast Asia and South Asia. Rice was brought to Europe via West Asia. And North America through the seizure of European colonization. Rice is normally grown year on year . But in the tropics Rice can live for many years and can be disregarded (ratoon) for up to 30 years plants can grow to 1-1.8 m depending on the variety and soil fertility is essentially a long , slender leaves 50-100 . cm wide and 2-2.5 cm long pendulous inflorescence 30-50 cm long, seeds , edible grains 5-12 mm and a thickness of 2-3 mm.

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