Cotton
is the seed hair of shrub plant which bears the botanical name
GOSSYPIUM, a member of the Mallow family, cultivated as an annual plant.
There are about 50 species of cotton plants however, only four of them
have attained commercial importance.
1. Gossypium Borbagense:
i) Plants are generally 6 – 15 ft. in height, yellow flowers.
ii) Fiber length ranges from 38 to 102 mm.
iii) Sea Islan , egyption cotton and American cotton belong to this class.
2. gossypium harbaceum:
i) The plants are like bush and generally 3 – 6 ft. in high, yellow flowers.
ii) Fiber length ranges 20 – 26 mm.
iii) Indian and Chinese cotton belong to this class.
3. Gossypium Hirsutum:
i) Plants are usually 6 ft. in height, red flowers.
ii) Fiber lenght: long fiber ranges 28 – 32 mm and extra long fiber more than 32 mm.
iii) South and North American, also known as Upland or Mexican, cotton belong to this class.
4. Gossypium paruvianum:
i) Plants are generally 10 – 15 ft. in height, yellow flowers.
ii) Average staple length ranges 25 – 40 mm and fibers are brownish yellow.
iii) Originally South American cotton but Indian, Pakistani and Chinese cotton also belong to this class.
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