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Review key Sericulture: Silk Production, Silkworm Life Cycle & Indian Varieties exam facts and rate your mastery to track revision.
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#1
Sericulture is the agro-based industry of rearing silkworms for the commercial production of natural silk fiber.
#2
Silk production originated in ancient China around 2700 BCE, attributed in folklore to Empress Leizu.
#3
Moriculture refers specifically to the agricultural cultivation of mulberry plants to produce leaves for feeding silkworms.
#4
The primary domesticated silkworm species is Bombyx mori, which feeds exclusively on the leaves of the mulberry tree.
#5
The complete metamorphosis of the silkworm involves four stages: egg, larva (caterpillar), pupa (chrysalis), and adult moth.
#6
Silkworm caterpillars feed voraciously through five distinct growth stages called instars, separated by four molting phases.
#7
A silkworm spins its protective cocoon by extruding liquid protein from modified salivary glands through a head spinneret.
#8
Silk is composed of two primary proteins: structural Fibroin (~70–80%) and gummy bonding Sericin (~20–30%).
#9
A single healthy cocoon can yield an unbroken continuous silk filament ranging from 600 to 1,500 meters in length.
#10
Stifling is the commercial process of applying heat to terminate the pupa inside the cocoon before it breaks the filament.
#11
Reeling is the mechanical unwinding of softened silk filaments from boiled cocoons into raw composite silk thread.
#12
India is the world's second-largest producer of raw silk, following China, and the largest consumer of silk fabric.
#13
India is the only country in the world that commercially produces all five major varieties of natural silk.
#14
The five commercial varieties are Mulberry, Tropical Tasar, Oak Tasar, Eri, and Muga silk.
#15
Muga silk is a lustrous golden-yellow silk produced exclusively by Antheraea assamensis, endemic to Assam with a GI tag.
#16
Tasar silk is a wild, copperish silk produced by Antheraea mylitta feeding on forest trees such as Arjun, Asan, and Sal.
#17
Eri silk is produced by Samia ricini, which feeds on castor leaves (Ricinus communis); it is often spun as non-violent Ahimsa silk.
#18
Ahimsa silk (peace silk) allows the adult moth to emerge naturally from the cocoon before processing the pierced shells.
#19
The Central Silk Board (CSB) is a statutory body established in 1948 under the Ministry of Textiles, headquartered in Bengaluru.
#20
Sericulture provides major rural livelihood employment, especially for women, across Karnataka, Andhra Pradesh, and Assam.
Subject Specialist Commentary
Analytical perspective & practical exam advice from the Master10 academic board
Sericulture is an ancient agro-industry that combines mulberry farming, or moriculture, with the systematic rearing of silkworm caterpillars to harvest natural silk fiber. The domesticated silkworm, Bombyx mori, feeds voraciously on mulberry leaves through five larval stages before spinning a protective cocoon using protein filaments extruded from its salivary glands. This continuous natural thread, composed of inner fibroin fibers bound by outer sericin gum, can extend up to 1,500 meters from a single unbroken cocoon.
For UPSC, SSC, and State PSC exams, focus on India's unique geographic monopoly in sericulture. India is the only country in the world that produces all five commercial silks: Mulberry, Tropical Tasar, Oak Tasar, Eri, and golden Muga silk, which holds a prestigious Geographical Indication tag in Assam. An important prelims trap involves institutional governance: remember that the statutory Central Silk Board, established in 1948, operates under the Ministry of Textiles from its headquarters in Bengaluru.
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