The Maryville times. (Maryville, Tenn.) 1884-1944, 1890-11-12
WHEAT SMUT.
Best Method OF Treating 1t with Hot
Water.

Best Method Of Treating 1t with Hot
Water.
The hot water treatment, when prop
erly carried out, is quite efiectusl. 1t
is as good, says Farm and Home, as the
copper sulphate solution without injur-
ing the seed, as the latter often does.
This hot water treatment consists In
immersing the the seed infected with
smut for few minutes in scalding
water The water must be hot enough
to kill the smut spores, but the immer.
sion must not be long enough to inJure
the germ within the seed-coats If the
water is at temperature of 1872 degrees
F., the spores will be killed, and yet
the immersion, If not continued beyond
fifteen minutes, will not injurn the
seed. The smut spores may possibly
be killed by ten minutes immersion,
but fifteen is recommended. The tenn.
perature of the water must vary but
little from 1872 degrees, in NO case rising
higher than 1875 degrees, nor falling be-
low 1870 degrees. To preserve these
conditions when treating large quaint.
ties of seed, the following suggestions
are offered: Provide two large vessels,
as two kettles over fire, or boilers on
cook stove, the first containing warm
water at 10 degrees to 100 degrees and
the second scalding water at 1872 degrees.
The first is to warm the seed prepare
tory to dipping it into the second. I'm.
less this is done it will DO difficult to
keep the water in the second vessel at
the proper temperature. The seed to
be treated must be first placed in bar.
rel, or other large vessel filled with
are wet. The smutty and imperfect
grains will rise to the top and must be
SKINNED off. The grain may remain in
the water from fifteen to thirty min
utes. Then it must be removed and
placed, half bushel at time, in YES.
sci that will allow free entrance and
exit of water on all sides. For this
purpose bushel basket made Of heavy
wire can be used, over which stretch
wire netting, say twelve meshes to the
inch; or an iron frame could be made at
trifing cost over which the wire
netting could be stretched. This would
allow the water to pass freely, and yet
prevent the passage of the seed. A
gunny bag sack might be used instead
of the wire basket If more convenient
Now dip the basket of seed in the
first vessel. After moment lift it,,
and when the water has mostly escaped,
plunge it into the water again, repeat
ing the operation several times The
object Of the lifting and plunging, to
which might be added also rotary mo-
ton, is to bring every grain in contact
with hot water. Less than minute is
required for this preparatory treatment,
after which plunge the basket Of seed
into the second vessel. If the Their
mometer indicates that the water is
growing cooler, pour in hot water until
it is at 1872 degrees again. II it should
rise higher than 1872 degrees, add small
quantities of cold water. This is the
most effectual method Of keeping the
proper temperature, and requires only
the addition of two small vessels-one
for cold and the other for boiling water.
The basket Of seed should, soon after
its immersion, be lifted, and then
plunged and agitated in the manner de.
scribed above, and the operation re.
peated from eight to ten times during
the immersion, which should be con.
tinued fifteen minutes. In this way
every part of the seed will be subjected
to the action of the scalding water.
Immediately after its removal dash
cold water over it or plunge into cold
water and then spread it out to dry.
Treat another lot in the same way until
! all the seed has been disposed Of. In
this way the following precaution
should be observed: Keep the water al
1872 degrees F. Don't let it rise higher
than 1875 degrees nor below 1870 degrees.
This is not difficult II thermometer
and hot and cold water are kept handy
See that the amount Of scalding water
is much greater, at least six or eigh,
times, than Of the seed put in it and
never fill the basket SO full of seed q
to prevent the free movement of ths
grain in the water. This method Va.
originated by ]. L. Jensen, Of Don
mark.