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Rice
Rice is a cereal grain and in its Domestication, 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). Asian rice was domesticated in China some 13,500 to 8,200 years ago; African rice was domesticated in Africa about 3,000 years ago. Rice has become commonplace in many cultures worldwide; in 2023, 800 million tons were produced, placing it third after sugarcane and maize. Only some 8% of rice is traded internationally. China, India, and Indonesia are the largest consumers of rice. A substantial amount of the rice produced in developing nations is lost after harvest through factors such as poor transport and storage. Rice yields can be reduced by pests including insects, rodents, and birds, as well as by weeds, and by List of rice diseases, diseases such as rice blast. Traditional rice polyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basmati Rice
Basmati () is a variety of long, slender-grained aromatic rice which originates from the Indian subcontinent, mainly in the regions of Nepal, Punjab, Haryana, Sindh and many other states and provinces of India and Pakistan.Big money in "specialty rices" Food and Agriculture Organization, United Nations (2002) , India accounted for 65% of the international trade in basmati rice, while Pakistan accounted for the remaining 35%. Many countries use domestically grown basmati rice crops; however, basmati is geographically exclusive to certain districts of India and Pakistan. According to the Indian Agricultural and Processed Food Products Export Development Authority, Agricultural and Processed Food Products Export Dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryza Glaberrima
''Oryza glaberrima'', commonly known as African rice, is one of the two domesticated rice species. It was first domesticated and grown in West Africa around 3,000 years ago. In agriculture, it has largely been replaced by higher-yielding Asian rice ('' O. sativa''), and the number of varieties grown is declining. It still persists, making up an estimated 20% of rice grown in West Africa. It is now rarely sold in West African markets, having been replaced by Asian strains. In comparison to Asian rice, African rice is hardy, pest-resistant, low-labour, and suited to a larger variety of African conditions. It is described as filling, with a distinct nutty flavour. It is also grown for cultural reasons; for instance, it is sacred to followers of Awasena (a traditional African religion) among the Jola people, and is a heritage variety in the United States. Crossbreeding between African and Asian rice is difficult, but there exist some crosses. Jones ''et al.'' 1997 and Gridley ''e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice Polyculture
Rice polyculture is the cultivation of rice and another crop simultaneously on the same land. The practice exploits the mutual benefit between rice and organisms such as fish and ducks: the rice supports pests which serve as food for the fish and ducks, while the animals' excrement serves as fertilizer for the rice. The result is an additional crop, with reduced need for inputs of fertilizer and pesticides. In addition, the reduction of pests such as mosquito larvae and snails may reduce mosquito-borne diseases such as malaria and dengue fever, and snail-born parasites such as the trematodes which cause schistosomiasis. The reduction in chemical inputs may reduce environmental harms caused by their release into the environment. The increased biodiversity may reduce methane emissions from rice fields. Some rice-animal polycultures, including rice-fish systems in China and rice-duck farming in China and Southeast Asia, have been practised for centuries, while others have been dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rice Diseases
This article is a list of diseases of rice (''Oryza sativa''). Diseases have historically been one of the major causes of rice shortages. Bacterial diseases Fungal diseases Viruses *'' Rice black-streaked dwarf virus'' *'' Rice bunchy stunt virus'' *'' Rice dwarf virus'' *'' Rice gall dwarf virus'' *'' Rice giallume virus'' *'' Rice grassy stunt virus'' *'' Rice hoja blanca tenuivirus'' *'' Rice necrosis mosaic virus'' *'' Rice ragged stunt virus'' *'' Rice stripe necrosis virus'' *'' Rice stripe tenuivirus'' *'' Rice transitory yellowing virus'' *''Rice tungro bacilliform virus'' - see Tungro below *''Rice tungro spherical virus'' - see Tungro below *'' Rice yellow mottle virus'' Miscellaneous diseases and disorders See also * :Insect pests of rice * List of rice varieties References {{reflist, 30em, refs= {{cite web , title=bacterial leaf blight of rice, ''Xanthomonas oryzae'' pv. ''oryzae'' Xanthomonadales: Xanthomonadaceae , website= Invasive.Org ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jasmine Rice
Jasmine rice (; ; ) is a long-grain variety of fragrant rice (also known as aromatic rice). Its fragrance, reminiscent of ''pandan'' ('' Pandanus amaryllifolius'') and popcorn, results from the rice plant's natural production of aroma compounds, of which 2-acetyl-1-pyrroline is the most salient. A rapid loss of aromatic intensity leads many Southeast Asians and connoisseurs to prefer each year's freshly harvested "new crop" of jasmine rice. Jasmine rice is a variety of '' Oryza sativa''. Jasmine rice is grown primarily in Thailand (''Thai hom mali'' or Thai fragrant rice), Cambodia (''phka rumduol'' or Cambodian jasmine rice), Laos, and southern Vietnam. It is moist and soft in texture when cooked, with a slightly sweet flavor. The grains cling and are somewhat sticky when cooked, though less sticky than glutinous rice ( ''Oryza sativa'' var. ''glutinosa''), as it has less amylopectin. It is about three times stickier than American long-grain rice. To harvest jasmine rice, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice Blast
''Magnaporthe grisea'', also known as rice blast fungus, rice rotten neck, rice seedling blight, blast of rice, oval leaf spot of graminea, pitting disease, ryegrass blast, Johnson spot, neck blast, wheat blast and , is a plant-pathogenic fungus and model organism that causes a serious disease affecting rice. It is now known that ''M. grisea'' consists of a cryptic species complex containing at least two biological species that have clear genetic differences and do not interbreed. Complex members isolated from '' Digitaria'' have been more narrowly defined as ''M. grisea''. The remaining members of the complex isolated from rice and a variety of other hosts have been renamed ''Magnaporthe oryzae'', within the same ''M. grisea'' complex. Confusion on which of these two names to use for the rice blast pathogen remains, as both are now used by different authors. Members of the ''M. grisea'' complex can also infect other agriculturally important cereals including w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cereal Grain
A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods. They include rice, wheat, rye, oats, barley, millet, and maize (Corn). Edible grains from other plant families, such as amaranth, buckwheat and quinoa, are pseudocereals. Most cereals are annuals, producing one crop from each planting, though rice is sometimes grown as a perennial. Winter varieties are hardy enough to be planted in the autumn, becoming dormant in the winter, and harvested in spring or early summer; spring varieties are planted in spring and harvested in late summer. The term cereal is derived from the name of the Roman goddess of grain crops and fertility, Ceres. Cereals were domesticated in the Neolithic around 8,000 years ago. Wheat and barley were domesticated in the Fertile Crescent; rice and some millets were domesticated in East Asia, while sorghum and other millets were domesticated in West Africa. Maize was domesticated by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oryza Sativa
''Oryza sativa'', having the common name Asian cultivated rice, is the much more common of the two rice species cultivated as a cereal, the other species being ''Oryza glaberrima, O. glaberrima'', African rice. It was History of rice cultivation, first domesticated in the Yangtze River basin in China 13,500 to 8,200 years ago. ''Oryza sativa'' belongs to the genus ''Oryza'' and the BOP clade in the grass family Poaceae. With a genome consisting of 430megabase, Mbp across 12 chromosomes, it is renowned for being easy to Genetically modified rice, genetically modify and is a model organism for the study of the biology of cereals and Monocotyledon, monocots. Description ''O. sativa'' has an erect stalk stem that grows tall, with a smooth surface. The leaf is lanceolate, long, and grows from a ligule long. Image:Kerbau Jawa.jpg, Domestic buffalo, Water buffalo ploughing a rice paddyfield, Java File:Jumli Marshi Oryza sativa Rice.jpg, Jumli Marshi, brown rice from Nepal File: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parboiled Rice
Parboiled rice, also called converted rice, easy-cook rice, sella rice, and miniket (as predominantly called in West Bengal and Odisha in India, and in Bangladesh) is rice that has been parboiling, partially boiled in the husk. The three basic steps of parboiling are soaking, steaming and drying. These steps make the rice easier to process by hand, while also boosting its nutritional profile, changing its texture, and making it more resistant to Sitophilus, weevils. The treatment is practiced in many parts of the world. Parboiling drives nutrients, especially thiamine, from the bran to the endosperm, hence parboiled white rice is mostly nutritionally similar to brown rice. Given the pale tan color that results from these bran components, parboiled rice is sometimes called saffron sella. Process and chemistry The starches in parboiled rice become starch gelatinization, gelatinized, then retrogradation (starch), retrograded after cooling. Through gelatinization, amylose molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rice-duck Farming
Rice-duck farming is the polycultural practice of raising ducks and rice on the same land. It has existed in different forms for centuries in Asian countries including China, Indonesia, and the Philippines, sometimes also involving fish. The practice is beneficial as it yields harvests of both rice and ducks. The two are in addition synergistic, as the rice benefits from being weeded and fertilized by the ducks, and having pests removed, while the ducks benefit from the food available in the rice paddy fields, including weeds and small animals. Systems In 2010, Asia produced around 90% of the world's rice, and in 2012 some 80% of all duck meat. Asian farmers had a tradition of fattening ducks on rice paddies, though this was achieved in different ways. Integrated rice-duck farming uses hybrid ducks such as Aigamo that avoid eating the leaves of rice plants. Such mutually-beneficial polycultural systems have been described as permacultures. In 2001, rice-duck farming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aromatic Rice
Aromatic rice is one of the major types of rice. It is a medium- to long-grained rice. It is known for its nutty aroma and taste, which is caused by the chemical compound 2-acetyl-1-pyrroline. Varieties of aromatic rice include Ambemohar, Basmati, Jasmine, Radhunipagal, Sona Masuri, Texmati, Tulaipanji, Tulshimala, Wehani, Kalijira, Chinigura, Gobindobhog, Kali Mooch and wild Pecan rice. When cooked, the grains have a light and fluffy texture except for Gobindobhog rice which is sticky in texture. Aromatic rice produces more 2-acetyl-1-pyrroline than usual due to a loss-of-function mutation in the BADH2 gene. The BADH2 mutation can be transferred by conventional breeding; it is a recessive trait. Gene editing can be used to induce a similar mutation in ordinary rice, turning them aromatic without affecting other traits. The ''aromatic'' cultivar group A Group (previously cultivar-groupInternational Code of Nomenclature for Cultivated Plants, 4th edition (1969), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
