The first diagram illustrates the stages in the life cyle of a silkworm, while the second diagram shows the production of silk cloth.
Overall, there are 4 stages in life cycle of the silkworm from eggs to moth and 5 steps in production of silk.
Initially, the eggs are laid by the moth on a mulberry leaf. These eggs hatch after 10 days into the silkworm larvae. They continue to feed on mulberry leaves for 4-6 weeks after which they start surrounding themselves in silk thread. This keeps happening for 3-8 days until they get completely covered by thread to form the fourth stage of life cycle which is cocoon. After 16 days, the moth emerges from the cocoon.
The second diagram shows steps in silkworm production. The first step is the selection of suitable cocoons. After selection, they are boiled in water at required temperature. Then, the cocoon is unwinded to a threads of length 300-900m. This step is followed by dyeing. The threads can be proceeded for dyeing in two forms- either they are twisted or woven.
The
first
diagram illustrates the stages in the life
cyle
of a silkworm, while the second diagram
shows
the production of silk cloth.
Overall
, there are 4 stages in life cycle of the silkworm from eggs to moth and 5
steps
in production of silk.
Initially
, the eggs
are laid
by the moth on a mulberry leaf. These eggs hatch after 10 days into the silkworm larvae. They continue to feed on mulberry
leaves
for 4-6 weeks after which they
start
surrounding themselves in silk
thread
. This
keeps
happening for 3-8 days until they
get
completely covered by
thread
to form the fourth stage of life cycle which is cocoon. After 16 days, the moth emerges from the cocoon.
The second diagram
shows
steps
in silkworm production. The
first
step
is the selection of suitable cocoons. After selection, they
are boiled
in water at required temperature. Then, the cocoon is
unwinded
to
a threads
of length 300
-900m
. This
step
is followed
by dyeing. The threads can
be proceeded
for dyeing in two forms- either they
are twisted
or woven.