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Newspaper clipping titled "Treatment of Sweet Clover Seed" written by J. T. Ewing J. T. Ewing Jan 1, 0001

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 Treatment of Sweet Clover Seed
By J. T. Ewing
We all know that most sweet
clover seeds have a very hard coat
so that when a piece of land is
seeded to sweet clover we seem
never to be rid of it. Experiments
conducted by R. O. Bibbey, of the
University of Saskatchewan, show
to what degree seeds of sweet
clover are impervious to ordinary
field conditions. On a certain university field he gathered seeds of
sweet clover which had been lying
dormant in the ground since 1928.
You would think the germs In
these seeds wrould have sprouted
and grown or else would have died
during this time, wouldn't you?
Ten summers of sunshine and rain.
Ten winters of freezing and thawing. Yet those seeds shown in the
illustration were taken from the
field after ten years.
See the healthy looking sprouts
of those in the left row? Twenty
hours before the picture wTas made
they were "scratched" and placed
on moist blotting paper. This let
moisture through the waterproof
shell and the embryo soon began
to grow. The second row went
onto the moist paper at the same
time, but wras not previously
"scratched," so these kernels are
still apparently dead.
What of the third row? These
seeds were "scratched" only three
short hours previously, showing
how quickly they begin to grow
when moisture is admitted.
This simple little experiment
shows the importance of scarifying
all sweet clover seed. At maturity
only about one percent of the seeds
have seed coats   which   will admit
|
#
Scratching of sweet clover seed
helps sprouting process.
water to the embryo. Threshing
cracks approximately forty percent
of these, and by the time the seed
has gone through the scarifier, at
least ninety percent should be
ready to    grow.
Here is a simple test to prove
whether or not your seed will
grow: Count out a hundred seeds
from your stock and place them in
a cup of water over night. Unless
ninety of them are two or three
times their former size the next
morning a good job of scarifying
has not been done.

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