May & June are big pollination months for fruit growers.
It is very important that they get proper pollination for their crops.
Download a copy of "The
Story of Pollination" - An 8 page report with lots
of pictures - from the National Honey Board.
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Pollen Collection Helps Plot the Past
Archaeologists seeking clues about the life of settlers in
early America are the latest experts to make use of an Agricultural
Research Service special collection of more than 8,000 types of pollen.
ARS scientist Gretchen D. Jones's collection of glass slides and light
and scanning electron micrographs (SEMs)--a type of highly detailed
photograph--of various pollen species will be featured on a Public
Broadcasting Service science special. The study of pollen is called
palynology.
Previously, the Smithsonian Institution in Washington, D.C.,
and the National Center for Ecological Analysis and Synthesis in Santa
Barbara, Calif., have utilized Jones' collection of pollen, the dusty
mass of tiny, yellow microspores produced by seed plants. The collection
is maintained at the ARS Areawide Pest Management Research Unit (APMRU)
in College Station, Texas.
The collection, started in 1988, now contains more
than 8,200 types, or taxa, of pollen from the United States, Canada,
Brazil, Belize and Mexico. The main emphasis of the collection is
pollen taxa from Texas. Jones' collection stands out because it includes
all three types of sample records--glass slides, as well as two types
of micrographs. Other collections generally contain only one or two
of these forms.
It's the SEMs that make Jones' collection so sought after.
These photographs provide an x-ray type of image that can show minute
details of something as small as a pollen grain. Pollen grain SEMs
can be analyzed by archaeologists who want to learn which plants would
have produced the pollen found on ancient fossils.
Today, the PBS Scientific American Frontiers program premiers
its "Unearthing Secret America" episode. It focuses
on archeological finds in Jamestown, and Williamsburg, Va.; and at
Monticello, Thomas Jefferson's home in Charlottesville, Va. They shed
light on life in early America--particularly on the origins and growth
of slavery.
Portions of Jones' pollen collection will be shown in this
episode to illustrate how archaeologists analyzed pollen
to determine what settlers ate, what medicinal plants they used, and
whether they were hunters or gatherers.
More information on the collection can be found on the Internet at:
http://pollen.usda.gov