tics or qualities from parent to
offspring, the tendency of an organism to reproduce the characteristics
of the progenitor."
Most of the species of gladioli are native in the temperate zone of
Southern Africa, where they have grown for so long a time that they will
reproduce themselves in a marked degree from seeds.
Some have grown in the moist soils of the valleys for so many
generations that they have become adapted to these conditions and will
not thrive on the elevated plateaus and mountain slopes. Those which are
native in the higher and cooler altitudes will not grow well in the
lower lands.
A species or variety becomes acclimated when it is grown in one locality
for several successive generations, because it is one of nature's laws
that it takes on new characteristics that improve it for existence
there. These characters are changing more or less during each generation
on account of environment.
We can not aid nature in strengthening and improving the desirable
qualities unless we follow nature's laws. By crossing two varieties that
have certain desirable characters in common we may be able to make these
characteristics more dominant.
Much of the crossbreeding of the gladiolus has been done in such an
unscientific manner that it is surprising that so much improvement has
been made. This improvement is mostly the result of extra care and
cultivation, and the selection of the best each generation. In order to
retain the benefit of any extra care and cultivation it has to pass on
as a heritage to the succeeding generation and is there incorporated
among its characteristics. Each generation should be an advance toward
the desired ideal.
There is no doubt in my mind that the ruffling and doubling of the
petals in flowers that have been under cultivation for several
generations is caused by the extra feeding and care that they have
received.
Most species of gladioli in their wild state are small and lacking in
beauty. Abnormal or freak varieties should not be selected as the best
for breeding, because they are usually the result of a violent cross,
and are nearly always weak as propagators and sometimes entirely
sterile.
Princeps has a very large flower, but the spike is short and only two or
three blooms are open at one time. It was originated by Dr. Van Fleet by
crossing Mrs. Beecher and Cruentus. Burbank crossed Princeps and
America, and quite a number of the seedlings show the markings of Mrs.
B
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