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Rice grains of different varieties at the International Rice Research Institute. Rice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa. Rice is the seed of the grass species Oryza sativa (Asian rice)—or, much less commonly, Oryza glaberrima (African rice).
Rice can come in many shapes, colours and sizes. This is a list of rice cultivars, also known as rice varieties.There are several species of grain called rice. [1] Asian rice (Oryza sativa) is most widely known and most widely grown, with two major subspecies (indica and japonica) and over 40,000 varieties. [2]
Rice is the main export of Thailand, especially white jasmine rice 105 (Dok Mali 105). [63] Thailand has a large number of rice varieties, 3,500 kinds with different characters, and five kinds of wild rice cultivates. [64] In each region of the country there are different rice seed types. Their use depends on weather, atmosphere, and topography ...
Oryza sativa subsp. japonica Shig.Kato. Oryza segetalis Russell ex Steud. Oryza sativa, having the common name Asian cultivated rice [2], is the much more common of the two rice species cultivated as a cereal, the other species being O. glaberrima, African rice. It was first domesticated in the Yangtze River basin in China 13,500 to 8,200 years ...
Rice terraces in Yunnan, China. Rice production in China is the amount of rice planted, grown, and harvested for consumption in the mainland of China. It is an important part of the national economy, [3] where it is the world's largest producer of rice, making up 30% of global rice production. [3] It produces the highest rice yields in Asia, at ...
Hybrid Rice. Hybrid rice is a type of Asian rice that has been crossbred from two very different parent varieties. [1] As with other types of hybrids, hybrid rice typically displays heterosis or "hybrid vigor", so when grown under the same conditions as comparable purebred rice varieties, it can produce up to 30% more yield. [2] To produce ...
Carolina Gold is an heirloom cultivar grown in the early United States, sometimes known as golden-seed rice for the colour of its grains. [15] Long-grain gold-seed rice boasted grains 5 ⁄ 12 inch (11 mm)inch long (up 11% from 3 ⁄ 8 inch (9.5 mm)), and was brought to market by planter Joshua John Ward in the 1840s. Despite its popularity ...
Perennial rice—like many other perennial plants—can spread by horizontal stems below or just above the surface of the soil but they also reproduce sexually by producing flowers, pollen and seeds. As with any other grain crop, it is the seeds that are harvested and eaten by humans.