The Nature is
a great teacher to mankind from primitive stage. Barks of certain trees and
fibres of certain non-wood plants were used for spinning and weaving, and also for
writing, since hoary past. Mogaveeras being
one of the early inhabitants of Tulunadu were self-reliant in respect of making
threads used in variety of fish-catching
nets. They grew Sunn hemp (Talambu = ತಲಂಬು in Tulu, Sanabu - ಸಣಬು in Kannada) for fibres to spin yarn long before the advent of modern
spinning mills. They continued to make threads from natural fibres even after
modern mills began manufacturing natural and synthetic fibres. Below is an outline of sunn hemp cultivation
and harvesting by Mogaveeras.
SUNN HEMP
The Sunn hemp (also written as sun; botanical name
‘Crotalaria Juncea Linn’) is an Asian, tropical to sub-tropical fibrous plant of Legume Family, having seed bearing pods. The genus is named ‘Crotalaria’, meaning rattling sound.
It indicates noise made by seeds shaken in ripe pods. The species name
was given by Linnaeus because the plant’s green, rush-like, scantily leaved
branches resemble Spartium junceaum L., the Spanish broom of the Mediterranean
region.
It is a native of India, Pakistan,
Bangladesh and Australia. It belongs to a large family of legume. Many
varieties of sunn hemp are grown in all tropical regions of the world. It is known by different names in different
languages in India and abroad, such as : Tulu (Talambu);Kannada (Sanabu);Malayalam (Wuckoo);Tamil (Sanal, Sannappu);
Telugu (Janumu); Hindi (kharif, sannai sunn);Sanskrit (Sana);Oriya (Soin); Bengali
(Shonpat, shon, ghore sun); English (brown hemp, sunn hemp, sun hemp, Bengal
hemp, Bombay hemp, Madras hemp, Benares hemp, Indian hemp, Jubbalpore hemp);
Filipino (karaykagay, putokputukan); French (chenvre indien);Indonesian
(orok-orok lembut); Khmer (kâk’tung);Lao (Sino-Tibetan)(thwax chu:b,po:
th’üang);Thai (po-tuang);Vietnamese (luc lac,suc sat)
The Sunn hemp or Crotalaria
juncea is an erect, herbaceous, laxly branched annual plant, 1 to3.5 m tall.
The stems are cylindrical and ribbed, pubescent, up to 2 cm in diameter;
vegetative parts covered with short, downy hairs. Long, strong taproot,
well-developed lateral roots, and multi-branched and lobed nodules, up to 2.5
cm in length. Leaves simple with minute, pointed stipules; petiole entire,
short, about 5mm long with pulvinus blade, linear elliptic to oblong, 4-12 x
0.5-3, bright green. Inflorescence a lax, terminal raceme, up to 25 cm long;
flowers conspicuous, small with 5 hairy sepals, shortly united at base, lobes pointed,
with 3 lower sepals united at tips, separating in fruit; petals deep yellow,
standard erect, about 2.5 cm in diameter, rounded, sometimes streaked purple on dorsal surface,
wings shorter and keel twisted. The Pods are cylindrical, 3-6 x 1-2 cm in size,
tomentose, light brown, containing about 6 seeds in each pod. The dark brown to
black seeds up to 6 mm long are heart-shaped, with narrow end strongly
incurved.
It is worthwhile to note that one of the natural products traded through Arab traders was sunn hemp fibres from Western Indian ports (including Mangalore). It reached Europe and England through Mediterranian region. Prior to introduction of sunn hemp cultivation in Europe, European traders too traded this item from 15th/16th Century onwards.
It is worthwhile to note that one of the natural products traded through Arab traders was sunn hemp fibres from Western Indian ports (including Mangalore). It reached Europe and England through Mediterranian region. Prior to introduction of sunn hemp cultivation in Europe, European traders too traded this item from 15th/16th Century onwards.
It was an important commercial crop in Europe. In South
Asia, it was cultivated more for its narcotic properties than for fibres. In 1841, William Robinson documented that ‘Cannabis
sativa’ (true hemp) was used mainly for drug by hill tribes of Assam whereas it
has been used as fibre (from the skin or rind of plant) for spinning elsewhere.
Hemp products are confusing because the
word ‘hemp’ is used for many fibre-bearing plants. Indian hemp comes from a species called
‘Hibiscus cannabines’, ramie or rhea from the plant ‘Boehmeria nivea’ and sunn
hemp from ‘Crotalaria Juncea’. This hemp was used for various purposes from
fishing nets to textiles, cordage and paper.
Chinese first developed hemp varieties to make paper. Chinese official documents are made of hemp
because it is water-resistant and tough. In North India, Khazgis, i.e. Muslim
paper makers, use a variety of materials to make papers, including sunn hemp.
The word ‘canvas’ comes from the word ‘cannabis’. This
reflects the use of hemp throughout history as a fibre crop for textiles, rope
and paper. Sail- cloth, sacking and
ropes were some of the important hemp products.
In 1941, Henry Ford made a trial car body using 70% hemp,
wheat straw and sisal and 30% hemp resin binder with a steel frame. The car weighed one-third times lesser than
conventional cars of that period.
The Sunn hemp plant, with insets showing flowers, leaves and seeds. |
MOGAVEERAS and
SUNN HEMP
It is a lean,
straight and long plant with yellow flowers. Seeds are stored and sown on
barren land of private land-owners with red soil as summer monsoon sets in
(June) and plants are harvested in September.
Both ends of plants are cut, cleaned, threshed for separating pods and
dried in sun-shine. During harvesting, separating leaves and pods, the cleaner
has to face the menace of skin irritation from large caterpillars of various
colours. Note: Moths and other garden insects are enemies of this plant.
It is then
soaked in fresh water of pond/pools or other water-bodies, such as ‘patla
kanda’, i.e. water-logged low agriculture fields, for a fortnight or so. This soaking process is known as ‘retting’.
After taking out the bundle of stalks, it is again sun-dried till stalks get
golden colour. After completion of
drying, stalks are ready for removal of fibres. Empty stalks are used as fuel
(Note: Elsewhere these empty stalks are used in paper making and wrapping
cigarettes. Stalks being hollow, children play with it for smoking and puffing
smokes as is done with a cigarette.)
Collected
fibres are kept aside for spinning threads of various thicknesses in leisure
time (mostly during rainy season). Women take lead role in smoothening fibres
and spinning in groups. This is sort of indoor pastime during summer monsoon when
they cut jokes, exchange village news and tell folk tales when it is raining in
cats and dogs. Male members entwine these threads for getting twine of particular
thickness for weaving particular type of net.
Sunn hemp
fibre is stronger when wet. It is fairly
resistant to mildew, moisture and microorganisms in salt water. To make it
still stronger, fishing nets are soaked in a decoction of ‘Banpu’ tree
barks. The Banpu (Panpu; Botanical name
‘Terminalia comentosa’ ; ಕರಿ ಅತ್ತಿಮರ, ಬನಪು) is a large tree. The fisher-folk used to dye their shirts with this decoction for long life
of the clothing. However,such a practice is now a thing of the past).
We can deduce
that prior to migration of professional weavers to Tulunadu, Salian, Saliannaya
or Talianna clan (found mostly among Billavas, Mogaveeras and Bunts) might have
been the pioneers in spinning and weaving in the Coast. With the availability of choice of modern
threads, fisher-folk have nearly discarded sunn hemp fibre and its cultivation.
Sunn Hemp – a
cover crop
Sunn Hemp
originated in India and apparently is in cultivation since the dawn of
agriculture. US Department of
Agriculture gives information that as a summer crop, sunn hemp can produce over
5000 pounds of biomass and 100 pounds of nitrogen per acre. It can produce this amount within 60 to 90
days. Thus, as a cover crop, hemp
improves soil properties, reduce soil erosion, conserve soil water and recycle
plant nutrients as green manure. It is
used as fodder for livestock and as a non-wood fibre crop. A notable point is
that sunn hemp destroys weeds. This
explains why fallow-land owners allow Mogaveeras to cultivate and harvest hemp
crop during summer monsoon.
CONCLUSION
As Alfred
Tennyson says, “Old order changeth yielding place to new”, there is a sea-change
in the life of Mogaveeras with mechanized fishing. As
closely watched during my growing up days in native place and with personal
experience, I am able to give a true picture of activities connected with sunn
hemp. As I understand, nowadays the
cultivation and harvesting of the crop for fibres is very much neglected. Considering the commercial value, Mogaveeras
may develop this line of business with help of Government Agriculture
Department.
-H. Vishwanath (Pune)
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