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PLANTING SEEDS Any reliable seed house can be depended upon
for good seeds; but even so, there is a great risk in seeds. A seed may to
all appearances be all right and yet not have within it vitality enough, or power,
to produce a hardy plant. If you save seed from your own plants you
are able to choose carefully. Suppose you are saving seed of aster plants. What
blossoms shall you decide upon? Now it is not the blossom only which you must
consider, but the entire plant. Why? Because a weak, straggly plant may
produce one fine blossom. Looking at that one blossom so really beautiful you
think of the numberless equally lovely plants you are going to have from the
seeds. But just as likely as not the seeds will produce plants like the
parent plant. So in seed selection the entire plant is to
be considered. Is it sturdy, strong, well shaped and symmetrical; does it
have a goodly number of fine blossoms? These are questions to ask in seed selection. If you should happen to have the opportunity
to visit a seeds man’s garden, you will see here and there a blossom
with a string tied around it. These are blossoms chosen for seed. If you look
at the whole plant with care you will be able to see the points which the
gardener held in mind when he did his work of selection. In seed selection size is another point to
hold in mind. Now we know no way of telling anything about the plants from
which this special collection of seeds came. So we must give our entire thought
to the seeds themselves. It is quite evident that there is some choice; some
are much larger than the others; some far plumper, too. By all means choose
the largest and fullest seed. The reason is this: When you break open a bean
and this is very evident, too, in the peanut you see what appears to be a
little plant. So it is. Under just the right conditions for development this
'little chap' grows into the bean plant you know so well. This little plant must depend for its early
growth on the nourishment stored up in the two halves of the bean seed. For
this purpose the food is stored. Beans are not full of food and goodness for
you and me to eat, but for the little baby bean plant to feed upon. And so if
we choose a large seed, we have chosen a greater amount of food for the
plantlet. This little plantlet feeds upon this stored food until its roots
are prepared to do their work. So if the seed is small and thin, the first
food supply insufficient, there is a possibility of losing the little plant. You may care to know the name of this pantry
of food. It is called a cotyledon if there is but one portion, cotyledons if
two. Thus we are aided in the classification of plants. A few plants that
bear cones like the pines have several cotyledons. But most plants have
either one or two cotyledons. From large seeds come the strongest
plantlets. That is the reason why it is better and safer to choose the large
seed. It is the same case exactly as that of weak children. There is often another trouble in seeds that
we buy. The trouble is impurity. Seeds are sometimes mixed with other seeds
so like them in appearance that it is impossible to detect the fraud. Pretty
poor business, is it not? The seeds may be unclean. Bits of foreign matter in
with large seed are very easy to discover. One can merely pick the seed over and
make it clean. By clean is meant freedom from foreign matter. But if small
seed are unclean, it is very difficult, well nigh impossible, to make them
clean. The third thing to look out for in seed is
viability. We know from our testing that seeds which look to the eye to be
all right may not develop at all. There are reasons. Seeds may have been picked
before they were ripe or mature; they may have been frozen; and they may be
too old. Seeds retain their viability or germ developing power, a given
number of years and are then useless. There is a viability limit in years
which differs for different seeds. From the test of seeds we find out the
germination percentage of seeds. Now if this percentage is low, don't waste
time planting such seed unless it be small seed.
Immediately you question that statement. Why does the size of the seed make a
difference? This is the reason. When small seed is planted it is usually sown
in drills. Most amateurs sprinkle the seed in very thickly. So a great
quantity of seed is planted. And enough seed germinates and comes up from
such close planting. So quantity makes up for quality. But take the case of large seed, like corn
for example. Corn is planted just so far apart and a few seeds in a place.
With such a method of planting the matter of per cent, of germination is most
important indeed. Small seeds that germinate at fifty per
cent. may be used but this is too low a per cent. for the large seed. Suppose we test beans. The percentage
is seventy. If low-vitality seeds were planted, we could not be absolutely
certain of the seventy per cent coming up. But if the seeds are lettuce go
ahead with the planting.
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