Oryza rufipogon: Difference between revisions
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'''''Oryza rufipogon''''', known as '''brownbeard rice''' and '''red rice''' is a member of the genus ''[[Oryza]]''. It has a close evolutionary relation to ''[[Oryza sativa]]'', the [[rice]] grown as a major food crop throughout the world. ''O. rufipogon'' is listed as a "noxious weed" by the United States<ref>Plant Protection and Quarantine. 2006. Federal noxious weed list (24 May 2006). USDA Animal and Plant Health Inspection Service. Washington, DC. 2pp. http://plants.usda.gov/java/profile?symbol=ORRU</ref> |
'''''Oryza rufipogon''''', known as '''brownbeard rice''' and '''red rice''' is a member of the genus ''[[Oryza]]''. It has a close evolutionary relation to ''[[Oryza sativa]]'', the [[rice]] grown as a major food crop throughout the world. ''O. rufipogon'' is listed as a "noxious weed" by the United States,<ref>Plant Protection and Quarantine. 2006. Federal noxious weed list (24 May 2006). USDA Animal and Plant Health Inspection Service. Washington, DC. 2pp. http://plants.usda.gov/java/profile?symbol=ORRU</ref> and is listed as a noxious weed in Alabama, California, Florida, Massachusetts, Minnesota, North Carolina, Oregon, South Carolina, and Vermont. According to the North American Plant Protection Association, ''O. rufipogon'' blends in with cultivated ''O. sativa'' so well that it cannot be detected. In this position it competes with the cultivated rice and uses valuable fertilizer and space. ''O. rufipogon'' sheds most of its seeds before the harvest, therefore contributing little to the overall yield. In addition, the rice grains produced by the plant are not eaten by consumers, who see it as a strange foreign particle in otherwise white rice.<ref>NAPPO - PRA / Grains Panel Pest Fact Sheet - Oryza rufipogon Griff. June / 2003, http://www.nappo.org/PRA-sheets/Oryzarufipogon.pdf</ref> |
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==Precious germplasm== |
==Precious germplasm== |
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Revision as of 13:07, 11 December 2012
| Oryza rufipogon | |
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| Species: | O. rufipogon
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| Oryza rufipogon | |
Oryza rufipogon, known as brownbeard rice and red rice is a member of the genus Oryza. It has a close evolutionary relation to Oryza sativa, the rice grown as a major food crop throughout the world. O. rufipogon is listed as a "noxious weed" by the United States,[1] and is listed as a noxious weed in Alabama, California, Florida, Massachusetts, Minnesota, North Carolina, Oregon, South Carolina, and Vermont. According to the North American Plant Protection Association, O. rufipogon blends in with cultivated O. sativa so well that it cannot be detected. In this position it competes with the cultivated rice and uses valuable fertilizer and space. O. rufipogon sheds most of its seeds before the harvest, therefore contributing little to the overall yield. In addition, the rice grains produced by the plant are not eaten by consumers, who see it as a strange foreign particle in otherwise white rice.[2]
Precious germplasm
A paper on conservation genetics of wild rice in the journal Molecular Ecology has this to say about O. rufipogon: "This is the most agriculturally important but seriously endangered wild rice species."
In India, the Pallikaranai marshland contains the wild rice Oryza rufipogon, described by Salim Ali Centre for Ornithology and Natural History (SACON) as a "precious germplasm."[3]
References
- ^ Plant Protection and Quarantine. 2006. Federal noxious weed list (24 May 2006). USDA Animal and Plant Health Inspection Service. Washington, DC. 2pp. http://plants.usda.gov/java/profile?symbol=ORRU
- ^ NAPPO - PRA / Grains Panel Pest Fact Sheet - Oryza rufipogon Griff. June / 2003, http://www.nappo.org/PRA-sheets/Oryzarufipogon.pdf
- ^ The Hindu/Vanishing Wetlands- 09 March 2005, http://www.hindu.com/2005/03/09/stories/2005030903421000.htm
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