Introduction.Sorghum Genetic Enhancement: Research Process uri icon

abstract

  • Sorghum (Sorghum bicolor (L.) Moench) is the fifth most important cereal crop in the world, afterwheat, maize, rice and barley. It is cultivated in wide geographic areas in the Americas, Africa, Asiaand the Pacific. It is the second major crop (after maize) across all agroecologies in Africa. It is thethird important cereal (after rice and wheat ) in India. Sorghum was grown in 100 countries of theworld in the year 2003, covering an area of approximately 44 million ha with grain production of 59million t and average productivity of 1.34 t ha-1 (FAO website: http://www.fao.org). Sorghumoccupies 24 m ha in Africa (mostly in Ethiopia, Mali, Nigeria and Sudan), 12 m ha in Asia (China,India, Myanmar, Pakistan, Saudi Arabia, Thailand and Yemen), 3.5 m ha in Central and SouthAmerica (Argentina, Brazil, Colombia, Honduras, Mexico and Venezuela), 3.1 m ha in the USAand 0.5 m ha in Australia. Asia and Africa together contributed about 59% (34.5 million t) of thetotal world production in 2003. The crop is mainly grown in tropical and subtropical areas whereagroclimatic conditions such as rainfall, soil and temperature are variable. Much of the crop isproduced in the more marginal and stress-prone areas of the semi-arid tropics (SAT), mainly onsmallholdings

publication date

  • 2004