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May 5, 2005
Pennsylvania
State University (Penn State)
researchers have discovered an extraordinary new flower that
lives longer than an ordinary one. Named Elegance Silver
by the researchers, the plant could be the Superman of the
flower world.
Elegance Silver is a Regal
Pelargonium, a very beautiful flower that is used as a flowering
houseplant, and belongs to the genus Pelargonium, the same genus
as geraniums. It has a glistening white flower with two burgundy
feathers on the top two petals. In terms of flower shape and
size, Elegance Silver resembles geraniums. The major differences
are the palette of flower colors, symmetry of petals and the
highly serrated leaves of the regal.
"It's unique because of its
floral longevity and physiological attributes," said Dr. Richard
Craig, professor emeritus, Department of Horticulture at Penn
State. This super flower is a result of almost 30 years of plant
breeding.
Through hybridization and
genetic selection, Craig was able to achieve this unique flower.
Hybrids are produced when pollen from one flower is taken and
used to pollinate another with different genetic qualities. This
leads to the dominant traits of the two parents being passed on
to a new plant. Researchers used forceps to extract the pollen
from one parent by hand and used it to fertilize another parent.
"It's like a roll of the dice,"
Craig said. "You can only hope for the best when breeding
regals. Sometimes you'll get lucky and breed the perfect plant,
and sometimes the plant you breed will be useless."
This time the dice rolled in
Craig's favor. However, he would not have known about the
plant's special longevity had he not cut some of Elegance
Silver's flowers and placed them in a vase. He wanted to share
the flower he bred with his grandchildren, who were visiting him
from Chicago. Craig was surprised to see that the flowers were
still in an acceptable condition after 14 days of being in the
vase.
Elegance Silver is much less
sensitive to ethylene compared to other regals, according to Dr.
Hye-Ji Kim who conducted the physiological research as part of
her dissertation. Small amounts of ethylene cause petals to
separate and also to wilt. The reduced sensitivity to ethylene
allows the flowers to retain their vitality for a much longer
time. Elegance Silver was later found to produce many more
flowers over an extended period of time than other regals.
"There are no other known regal
cultivars that have both," added Craig.
The Penn State researcher
introduced Elegance Silver into his breeding program after he
discovered it was quite different from other plants. The
original seedling was used to start a new group of plants.
The University applied for a
plant patent for Elegance Silver filed with the U.S. Patent and
Trademark Office. Additional protection is being sought
internationally. A license was given to Oglevee Ltd. of
Connellsville, Pa., which has produced Penn State's other
patented geraniums and regals for many years. The first plants
will become available to flower growers in fall 2005 and to
consumers next spring. |