Cotton is virtually pure cellulose, apart from very small amounts of wax, protein, and water. Manufacturer of Cotton Processing Plant, Cotton Plant, Absorbent Cotton Plant, Cotton Plant Machinery and Surgical Cotton Plant offered by Shree Ambica Engineering Works & Company, Ahmedabad, Gujarat. Additionally, genetically modified “Bt cotton” was developed to produce bacterial proteins that are toxic to herbivorous insects, ostensibly reducing the amount of pesticides needed (). The process continues by spinning threads from the remaining, seedless white fiber. It is the seed left after the separation of long fibres from cotton, and serves as a good source of cellulose for ruminants. While raw cotton contains fiber, due to how cotton is harvested, it also carries small plant parts and field trash (non-lint or foreign matter) that must be removed thoroughly. Cotton seeds are valuable by-products. Combine harvesting ripe cotton in Alabama. These include terrycloth for highly absorbent bath towels and robes; denim for blue jeans; cambric, popularly used in the manufacture of blue work shirts (from which we get the term "blue-collar"); and corduroy, seersucker, and cotton twill. Currently, cotton is produced only in three EU countries on around 320,000 ha. But the cotton plant is so much more than just a fiber source. Cotton accepts many dyes, is usually washable, and can be ironed at relatively high temperatures. ), and in the southwestern United States (500 B.C.). Pieces of cotton fabrics have been found by archaeologists in Mexico (from 3500 B.C. Cotton looms interlace the tense lengthwise yarns, called warp, with crosswise yarns called weft, or filling. Todays cutting-edge machin… The third group includes the short-staple, coarse cottons, ranging from about 1 to 2.5 cm (0.5 to 1 inch) in length, used to make carpets and blankets, coarse and inexpensive fabrics, and blends with other fibres. Mechanization has also reduced substantially the labour needed to grow cotton. Cotton is a perennial that farmers grow on an annual schedule. Get a Britannica Premium subscription and gain access to exclusive content. Ring in the new year with a Britannica Membership, https://www.britannica.com/topic/cotton-fibre-and-plant, Jewish Women's Archive - Biography of Anne Frank, Web Gallery of Art - Biography of Antonio Canova, The New Georgia Encyclopedia - Business and Economy - Cotton, JewishEncyclopedia.com - Biography of Georg Brandes, cotton - Children's Encyclopedia (Ages 8-11), cotton - Student Encyclopedia (Ages 11 and up). Limited control of damage by insect pests can be achieved by proper timing of planting and other cultural practices or by selective breeding of varieties having some resistance to insect damage. The seed hair, or cotton fibre, reaching a maximum length of about 6 cm (2.5 inches) in long-fibre varieties, is known as lint. Linters from longer fibers are often used for medical supplies, while linters with shorter fibers are used in items ranging from gun powder to cotton balls and even X-ray film. Cotton is an arable crop used mainly for fibre. Although cotton represents less than 0.2% of the value of Europ… Please click on these. Cotton, one of the world’s leading agricultural crops, is plentiful and economically produced, making cotton products relatively inexpensive. A traditional and still common processing method is ring spinning, by which the mass of cotton may be subjected to opening and cleaning, picking, carding, combing, drawing, roving, and spinning. All parts of the cotton plant are useful. Handpicking, carried out over a period of several days, allows selection of the mature and opened bolls, so that a higher yield is possible. Finally, the roving is transferred to a spinning frame, where it is drawn further, twisted on a ring spinner, and wound on a bobbin as yarn. Ecovative Design used cotton burrs, agricultural waste, to create a biodegradable packaging that can be composted after use. The bollworm (Heliothis zea, also known as the corn earworm) feeds on cotton and many other wild and cultivated plants. The fertilized blossoms fall off after a few days and are replaced by small green triangular pods, called bolls, that mature after a period of 55–80 days. Author: Scott Stewart, IPM Extension Specialist Comments Off on Cotton Defoliation – Defoliation Products Defoliants can be categorized as having either herbicidal or hormonal activity. The breeding of resistant varieties, however, has been more effective. Cotton, seed-hair fibre of several species of plants of the genus Gossypium, belonging to the hibiscus, or mallow, family (Malvaceae). Cotton, one of the world’s leading agricultural crops, is plentiful and economically produced, making cotton products relatively inexpensive. But other parts of the plant are also used for various purposes. On our farm in Northeastern NC, we raise cotton, sage, corn, small grains, & soybeans. Warp yarns often are treated chemically to prevent breaking during weaving. An even coarser fibre is derived from coir, the outer…, Finally, there is evidence that cotton was cultivated and used for textiles.…. A hybrid of T. stricta and T.recurvifolia, this plant has silver green leaves and produces bright pink bract with violet flowers. Some linter is used to make candle wicks, string, cotton balls, cotton batting, paper, and cellulose products such as rayon, plastics, photographic film, and cellophane. The seeds are separated from the cotton fiber mechanically. Updates? Folex TM , Aim TM , Display and ET TM are herbicidal-type defoliants that injure the plant, causing it to produce ethylene in response to this injury. Properly timed insecticide application provides fairly effective control. Cottonseed oil is used in salad and cooking oils and, after hydrogenation, in shortenings and margarine. Ginned cotton is shipped in bales to a textile mill for yarn manufacturing. Cotton fibres may be classified roughly into three large groups, based on staple length (average length of the fibres making up a sample or bale of cotton) and appearance. The first group includes the fine, lustrous fibres with staple length ranging from about 2.5 to 6.5 cm (about 1 to 2.5 inches) and includes types of the highest quality—such as Sea Island, Egyptian, and pima cottons. For higher-quality yarn, card sliver is put through a combing machine, which straightens the staple further and removes unwanted short lengths, or noils. The procedure for weaving cotton yarn into fabric is similar to that for other fibres. The small, sticky seeds must be separated from the wool in order to process the cotton for spinning and weaving. Cotton is a plant that produces fibers, which are used to make clothes and other products, like towels, carpets or sheets. Mechanization has also reduced substantially the labour needed to grow cotton. Rotor spinning machines at a coarse cotton factory. origins of agriculture: Mechanized equipment for cotton. Glyphosate-resistant cotton, which can tolerate the herbicide glyphosate, was also developed through genetic engineering. When it is in bloom it produces attractive yellow blossoms and pink blossoms at the same time. It may have existed in Egypt as early as 12,000 B.C. Since the fiber is pervasive in what we wear, eat, and use on a daily basis, its easy to forget that it comes from a crop, and must be harvested each and every year to meet worldwide demand. The various species of cotton grown as agricultural crops are native to most subtropical parts of the world and were domesticated independently multiple times. A chemical defoliant is usually applied before mechanical picking to cause the plants to shed their leaves, thus encouraging more uniform ripening of the bolls. Today, so many products are created from cotton. The seeds can also be pressed and turned into cottonseed oil that can be used in cooking, as well as cosmetics, soap, and food products like chips and salad dressing. Handpicking also produces considerably cleaner cotton; mechanical harvesters pick the bolls by suction, accumulating loose material, dust, and dirt, and cannot distinguish between good and discoloured cotton. Equipment includes tractor, two-row stalk-cutter, disk (to... Close-up of a carding machine at a textile mill. It is true the cotton plant will always be grown for humans to use but mainly for clothing purposes. Greece is the main cotton grower, with 80% of European cotton area, followed by Spain (mainly the region of Andalucía) with a share of 20%. The term plant growth regulators (PGRs) may be used to refer to a wide array of hormonal products, including herbicides or other products that impact growth, but are most commonly used in cotton production to suppress excessive vegetative growth and may slightly hasten maturity. The Cotton Plant is an unusual plant to grow. Although cotton can be grown between latitudes 30° N and 30° S, yield and fibre quality are considerably influenced by climatic conditions, and best qualities are obtained with high moisture levels resulting from rainfall or irrigation during the growing season and a dry, warm season during the picking period. While the fiber is woven into apparel and home textiles, the seeds are used as a high-quality feed for cows. Each fiber is a single elongated cell that is flat twisted and ribbon-like with a wide inner hollow (lumen). Planting is common than 0.2 % of the Mallow family into yarn as the corn earworm ) feeds on and. 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