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Questions and Answers
Which of these crops is primarily grown in the Gangetic Deltas?
Which of these crops is primarily grown in the Gangetic Deltas?
In which climatic conditions does jute thrive?
In which climatic conditions does jute thrive?
Which of the following is the correct family for Hemp?
Which of the following is the correct family for Hemp?
Which of these countries is not mentioned as a major producer of Hemp?
Which of these countries is not mentioned as a major producer of Hemp?
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What is a key cultural practice in jute cultivation regarding the sowing of seeds?
What is a key cultural practice in jute cultivation regarding the sowing of seeds?
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What is the typical harvesting time of Jute?
What is the typical harvesting time of Jute?
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What is the main method for removing weeds in jute cultivation?
What is the main method for removing weeds in jute cultivation?
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What is mentioned regarding the waterlogging at any stage of Jute growth?
What is mentioned regarding the waterlogging at any stage of Jute growth?
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What is the primary use of short-staple cotton fibers?
What is the primary use of short-staple cotton fibers?
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Which type of cotton is known for having the longest fibers and is considered the most difficult to cultivate?
Which type of cotton is known for having the longest fibers and is considered the most difficult to cultivate?
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What is the predominant climate requirement for cultivating fibre flax?
What is the predominant climate requirement for cultivating fibre flax?
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Which of the following statements about cotton production is most accurate?
Which of the following statements about cotton production is most accurate?
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What soil conditions are most suitable for growing fiber flax?
What soil conditions are most suitable for growing fiber flax?
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Which country is NOT among the top three producers of flax?
Which country is NOT among the top three producers of flax?
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What is the approximate length range of standard medium or intermediate staple cotton fibers?
What is the approximate length range of standard medium or intermediate staple cotton fibers?
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Which characteristic is NOT associated with long-staple cotton fibers?
Which characteristic is NOT associated with long-staple cotton fibers?
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Which characteristic is NOT typical of jute fibers?
Which characteristic is NOT typical of jute fibers?
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What is the primary method of removing the pulpy tissue from sisal leaves?
What is the primary method of removing the pulpy tissue from sisal leaves?
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What is the primary use for Sunn hemp fiber?
What is the primary use for Sunn hemp fiber?
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Which of these fiber's described in the text, is mainly used for stuffing?
Which of these fiber's described in the text, is mainly used for stuffing?
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What is a typical characteristic of Sunn hemp plants?
What is a typical characteristic of Sunn hemp plants?
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Which of the following is a common characteristic shared by both jute and Sunn hemp?
Which of the following is a common characteristic shared by both jute and Sunn hemp?
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What is the approximate length range of sisal fibers?
What is the approximate length range of sisal fibers?
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What is the origin of the name 'sisal'?
What is the origin of the name 'sisal'?
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What is a unique characteristic of the Sunn hemp plant’s seed pods?
What is a unique characteristic of the Sunn hemp plant’s seed pods?
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Which material was traditionally used by Egyptians for wrapping mummies?
Which material was traditionally used by Egyptians for wrapping mummies?
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What is a characteristic that makes coconut fiber suitable for marine applications?
What is a characteristic that makes coconut fiber suitable for marine applications?
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What is the approximate length of coconut fiber strands?
What is the approximate length of coconut fiber strands?
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Which of the following is NOT a described characteristic of Sunn hemp fiber?
Which of the following is NOT a described characteristic of Sunn hemp fiber?
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Which of these is a botanical family of jute substitute materials?
Which of these is a botanical family of jute substitute materials?
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What is the approximate percentage of cellulose in sisal fiber as per the provided text?
What is the approximate percentage of cellulose in sisal fiber as per the provided text?
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Where does kapok fiber originate from within the kapok tree?
Where does kapok fiber originate from within the kapok tree?
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What is the primary method for harvesting kapok fruits?
What is the primary method for harvesting kapok fruits?
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What is the approximate percentage of floss found within a mature kapok pod?
What is the approximate percentage of floss found within a mature kapok pod?
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Which of the following best describes the structure of an individual kapok fiber?
Which of the following best describes the structure of an individual kapok fiber?
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Why are untreated kapok fibers not suitable for spinning into yarn?
Why are untreated kapok fibers not suitable for spinning into yarn?
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Which of the following is NOT mentioned as a substitute for kapok?
Which of the following is NOT mentioned as a substitute for kapok?
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What is a key morphological characteristic of Ramie plants regarding their leaves?
What is a key morphological characteristic of Ramie plants regarding their leaves?
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What soil and environmental conditions are most suitable for cultivating Ramie?
What soil and environmental conditions are most suitable for cultivating Ramie?
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When is the appropriate time to harvest Ramie crops?
When is the appropriate time to harvest Ramie crops?
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What is the main challenge in processing Ramie fibers?
What is the main challenge in processing Ramie fibers?
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Which of the following best describes the tensile strength of Ramie fiber compared to other natural fibers?
Which of the following best describes the tensile strength of Ramie fiber compared to other natural fibers?
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What is the common name for the cloth made from Ramie fibers in China?
What is the common name for the cloth made from Ramie fibers in China?
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Which of the following is a key characteristic of Abacá fiber?
Which of the following is a key characteristic of Abacá fiber?
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Where did Abacá originate and where was it initially used?
Where did Abacá originate and where was it initially used?
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Flashcards
Cotton
Cotton
A natural fiber obtained from the seed pod of the cotton plant, Gossypium spp., known for its softness, absorbency, and versatility.
Staple Length
Staple Length
A measure of the length of cotton fibers, typically in inches or centimeters.
Long Staple Cotton
Long Staple Cotton
Cotton fibers that are 1 to 2.5 inches long, with a fine texture and good luster. Often used for fine fabrics and hosiery.
Medium Staple Cotton
Medium Staple Cotton
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Short Staple Cotton
Short Staple Cotton
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Flax
Flax
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Cotton Processing
Cotton Processing
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Flax Production
Flax Production
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What is hemp?
What is hemp?
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Where is hemp grown?
Where is hemp grown?
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What is hemp harvested for?
What is hemp harvested for?
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What is jute?
What is jute?
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Where is jute primarily grown?
Where is jute primarily grown?
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What are the ideal conditions for jute growth?
What are the ideal conditions for jute growth?
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How long does it take for jute to mature?
How long does it take for jute to mature?
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What are the uses of jute fiber?
What are the uses of jute fiber?
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Where is Jute Grown?
Where is Jute Grown?
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Describe Jute Fiber Characteristics.
Describe Jute Fiber Characteristics.
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What are two Jute Substitutes?
What are two Jute Substitutes?
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What is Sunn Hemp?
What is Sunn Hemp?
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Describe Sunn Hemp's Morphology.
Describe Sunn Hemp's Morphology.
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What are Sunn Hemp's Cultural Requirements?
What are Sunn Hemp's Cultural Requirements?
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What are the Characteristics of Sunn Hemp Fibers?
What are the Characteristics of Sunn Hemp Fibers?
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Kapok Tree
Kapok Tree
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Kapok Fiber
Kapok Fiber
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Kapok Processing
Kapok Processing
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Kapok Substitutes
Kapok Substitutes
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Kapok Fiber Spinning
Kapok Fiber Spinning
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Sisal Fiber
Sisal Fiber
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Sisal Harvesting
Sisal Harvesting
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Sisal Fiber Characteristics
Sisal Fiber Characteristics
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Coconut Fiber
Coconut Fiber
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Coconut Fiber Characteristics
Coconut Fiber Characteristics
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Kapok Fiber Origin
Kapok Fiber Origin
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Kapok Fiber Applications
Kapok Fiber Applications
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Ramie
Ramie
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Ramie's Growing Conditions
Ramie's Growing Conditions
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Ramie Harvesting
Ramie Harvesting
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Ramie Fiber Extraction
Ramie Fiber Extraction
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Abacá
Abacá
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Abacá Fiber Properties
Abacá Fiber Properties
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Abacá's History
Abacá's History
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Abacá Fiber Extraction
Abacá Fiber Extraction
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Study Notes
Chapter 2: Fibers and Fiber Yielding Plants
- This chapter covers various plant fibers used in textiles, including classifications, origins, production, processing, and uses.
Classifications of Fibers
- Fibers are categorized based on their nature and structure.
- Bast Fibers: Associated with the phloem, pericycle, and cortex of dicotyledonous plants. Separated by retting. Examples include flax, jute, hemp, and kenaf.
- Structural Fibers: Strands of short, lignified cells found in the leaves of monocotyledonous plants. Separated by scraping. Examples include manila hemp, sisal, and New Zealand hemp.
- Surface Fibers: Borne on the surface of stems, leaves, fruits, and seeds. Separated by ginning. Examples include cotton and kapok.
Cotton
- Scientific name: Gossypium spp.
- Family: Malvaceae
- Production: Greater than all other fibers combined.
- History: Cultivated in South Asia and Central America since ancient times. Used for textiles early on.
- Fiber source: Seeds.
- Types:
- Long-staple fibers: 1-2.5 inches, fine texture, high luster (e.g., Sea Island, Egyptian, Pima).
- Medium/Intermediate staple fibers: 0.5-2 inches, coarser.
- Short-staple fibers: 0.37-0.75 inches, short, coarse, and lusterless. Primarily used in coarse fabrics, carpets, and blankets.
- Processing:
- Harvesting: Begins 6 months after sowing; picking done when the boll opens.
- Ginning: Removing dirt, boll fragments, and other foreign matter from raw cotton with roller or saw gin; used for bale formation.
- Picking: Manual labor or mechanical harvesters. Sometimes defoliation with chemicals used.
- Uses: Fabrics, yarn, hosiery.
- Classification: 20 species in 8 sections; 2 are commercially important.
Flax
- Scientific name: Linum usitatissimum
- History: One of the oldest cultivated plants. Cultivated in the Mediterranean region and Southwest Asia.
- Fiber Source: Stem fibers.
- Production: Major producers include France, Belarus, and Russia.
- Characteristics: Annual plant with slender stem, greyish green color, small ovate or lanceolate leaves.
- Processing:
- Harvesting: Stems cut when lower two-thirds of the stems turn yellow, leaves have fallen.
- Processing: Stripping, retting (stems immersed in water), scutching (removing woody core), hackling (separating short fibers).
- Uses: Linen fabric (threads and fabric).
Hemp
- Scientific name: Cannabis sativa L.
- Family: Cannabinacaea
- History: One of the oldest textile fibers known to humans, used for ropes, clothing in paper production in ancient times. Used in Europe starting 1500 BC
- Fiber Source: Stems.
- Production: China is the largest.
- Uses: Fabric, ropes, paper, cordage.
Jute
-
Scientific name: Corchorus spp.
-
Family: Tiliaceae
-
History: Least expensive, but second most important bast fiber. Originated in Africa and India. India and Bangladesh produce most of the world's jute.
-
Fiber Source: Stems.
-
Processing: Retting in stagnant water; removal of outer tissues.
-
Characteristics:
- Mostly grown in the Ganges Delta region.
- Often needs hand-harvesting if grown in flooded areas.
-
Uses: Fabrics, bags, ropes, burlap.
Sann or Sunn Hemp
-
Scientific name: Crotalaria juncea L.
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Family: Fabaceae
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Characteristics: Asiatic species, grown in India, important 2nd source of bast fibers.
-
Processing: Similar to jute
-
Uses: cordage, ropes, twines, marine cordage.
Ramie, Rhea or China Grass
- Scientific name: Boehmeria nivea (L.) Gaud.
- Family: Urticaceae
- History: One of the oldest textile fibers known to humans
- Fiber Source: Plant trunk/stem
- Processing:
- Harvesting: Cut when stems begin to turn brown and inflorescence emerges; harvested with hand sickle.
- Processing: Removing bark; stripping fibers from the stem.
- Uses: Strongest and hardest vegetable fiber. Durable, woven into cloth called "grass cloth", or "Chinese linen"
Abacá, Manila Hemp
- Scientific name: Musa textilis
- Family: Musaceae
- Production: Philippines is the leading producer, followed by Ecuador.
- Uses: Strongest of the structural fibers, used in ropes, sails, twine.
Sisal
- Scientific name: Agave sisalana
- Family: Agavaceae
- History: Native to the Yucatan Peninsula of Mexico
- Fiber source: Plant leaves
- Processing: Cut leaves; remove green pulpy tissue mechanically or by hand.
- Uses: Structural fibers, rope making.
Coconut
- Scientific name: Cocos nucifera L.
- Family: Arecaceae
- History: Coir (fiber from husk) has been used for thousands of years.
- Production: India is the largest producer, followed by Sri Lanka.
- Processing: Soak husks in water to separate fibres and process more into fibers; remove husk,
- Fiber type: Used for cordage, mattresses, and other products.
Kapok
- Scientific name: Ceiba pentandra (L.) and variants
- Family: Bombacaceae
- Fiber source: The inner fruit wall (not the seed).
- Characteristics: Deciduous tree; tropical regions; distinctive buttresses.
- Uses: Stuffing for mattresses, pillows, and cushions, due to its high air retention properties.
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Description
Test your knowledge on the cultivation practices and conditions for different agricultural crops, including jute, hemp, and cotton. This quiz covers key aspects such as climatic requirements, soil conditions, and harvesting techniques. Perfect for students and enthusiasts of agriculture!