The Abbeville press and banner. [volume] (Abbeville, S.C.) 1869-1924, 1901-01-16
VITALITY OF SEEDS.

VITALITY UF SEEDS.
IMPORTANT RESULTS OF SCIENTIFIC
INVESTIGATION. a..
Instances OF Seeds Holding suspended
Their terminating Powers For Ono Hun.
dred and Fifty Years and Then springins
to Life Under Proper Treatment.
Not long ago It was generally believed
that grains of wheat from Egyptian tomba
had been made to germinate and there
seemed therefore to be no limit to the
dormant life of seed. When these stories
were proved to be without foundation,
there was q general tendency to disbelieve
all Of a similar kind. Now, however, 1t
seems established that seeds may live, un-
der proper conditions, great many years.
perhaps for centuries, and when we CON-
slider that under these circumstances the
protoplasm within the seed actually main
tains Its vitality, this fact is very signif-
cant. On the question Of how seeds ao-
oomplish this much light has been thrown
by recent experiments Of @. de Candolle,
the French botanist, which he describes In
Le Revue Soienti1que. Some parts OF
his article are as follows:
"Seeds that have retained their germi-
mating power are said to possess latent
life.' This expression lacks precision, for
we may ask whether the life Of the seeds
Is completely arrested or II 1t Is only re-
tarded, and the answers would not be the
same In all cases.
"We owe to Messrs. Van Tieghem and
Bounier the following experiment, which
proves that seeds can, In fact, live for
certain time this retarded life. Three lots
of the same number of peas and beans
were placed, the first in the open air, the
second In sealed glass tube containing
ordinary air, the third in a sealed tube
containing only pure oarbonio acid gas.
At the end Of two years the seeds OF the
first lot had sensibly increased in weight,
and nearly all had retained their germinat-
ing power. Those preserved In the con.
fined air had increased less In weight and
terminated In less number than the pre-
ceding. Moreover, the air contained IN
the tube with them had changed in com-
position. It's proportion Of oxygen had
fallen to 11.4 per cent, and there was
mixed with it 3.sper cent Of carbonic aoid.
As to the seeds kept In the ~carbonio acid,
none Of them could germinate, and their
weight had not changed" . 4
Experiments are then described by n.
de Candolle that relate to the wonderful
power of resistance to cold displayed by
seeds. Experiments already made by 9th
CTS show that these seeds may germinate
after having been exposed to tempera-
ture Of ! ,00S kelow zero, oentigrade. Now
the researches Of Pictet In his celebrated
low temperature laboratory in Berlin show
that at such point chemical action total
~ ceases. Hence the active life Of the
seeds In question must have been really
suspended, and nevertheless they were
able to germinate when planted. In NJ
de Candolle's own experiments seeds were
subjected once day for 11S days to tenn
perature Of 87S to 588 below zero, for 8 to
30 hours at time, and Notwithstanding
this harsh treatmsdt, they sprouted when
planted. If the life of the seeds, however,
were really suspended they must be able
to live out of contact with air for certain
time. In order to see whether they could
do this, NJ. de Candolle kept seeds under
mercury from one to three months with
out killing them. ~
In this state Of suspended life seed 10
In q chemical, condition, according to M.
de Candolle, somewhat resembling that OF
an explosive mixture-that Is, 1t is ready
for chemical action (growth), but that ao-
tion will not begin until the surrounding
conditions are right. In the explosive
these are conditions Of dryness, tempera-
ture, etc., Just as they are with the seed.
IA seed, then, Is little bomb, only walt.
ing to be touched of to release It's store OF
energy and send out discharge in tho
shape of q sprout. NJ. de Candolle re-
marks on this as follows: ..,
"This state of chemical and vital inertia
may last long time, perhaps even indef.
nitely. 1t Is at least, as 1t seems to me.
the only way of explaining the preservs.
tion Of seeds during great number OF
years. Cases are known where they have
germinated after period so long that 1t
Is impossible to believe that they have
continued in life, properly speaking, IN
the interval, no matter how slowly the
processes of life may have gone on. Here
are some remarkable examples:
IA. P. de Candolle mentions seeds that
sprouted very we'll after more than 90
years.
"Girardin has seen beans sprout that
had lain In the storehouse OF Tournefort
. more than 100 years. 49,.
"In 1850 Robert Brown sowed, from
curiosity, some seeds from the collection
Of Sir Hans Sloane, where they had re-
mained for more than $50 years. He suo-
oeeded In making several germinate, IN
particular one of Nelumbium speciosum
Ia water lily), of which the plan has been
preserved in the British museum, where
saw 1t q few years since.
1.-THE alleged termination of mummy
wheat is, as Is now generally known, but
baseless fable. 1t appears, besides, that
the wheat was always sterilized before be-
ing put into the sarcophagi, which pre-
oluded all possibility of Its growth. But
to make up for the falsity OF this story
divers we'll authenticated facts show thai
seeds can preserve their power of sprouting
after an extremely prolonged sojourn be-
meath the earth-that Is to say, In shelter
from atmospheric influences
"The most extraordinary case Of this
kind Is that observed several years since
by Professor De Heldreioh, director OF the
Botanic garden at Athens. While botan.
izing in the neighborhood Of the mines OF
Laurium this -savant discovered, IN 1878,
q olaucium that he took at once to be new
species, and he described 1t under the
name Of glaucium. This plant made Its
appearance on piece of land from which
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