Cotton is the seed hair of plants of the genus Gossypium. The many speciesgrown commercially may be divided into three general types:1. fine cottons with staple lengths (average fibre lengths) varying from 25 to 60mm, including high-quality varieties such as Egyptian, Sudanese and SeaIsland cotton,2. coarser species with shorter staple lengths (typically 13-33 mm), such asAmerican Upland cottons,3. coarse fibres of even shorter length (about 9-25 mm), commonly grown inCentral Asia and the Indian subcontinent.
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