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Pollen is a
powdery substance produced by most
types of
flowers of seed
plants for the
purpose of ****ual reproduction. It
consists of
pollen grains (highly...
- A
pollenizer (or polleniser),
sometimes pollinizer (or polliniser, see
spelling differences) is a
plant that
provides pollen. The word
pollinator is often...
- Bee
pollen, also
known as bee
bread and ambrosia, is a ball or
pellet of field-gathered
flower pollen packed by
worker honeybees, and used as the primary...
- A
pollen tube is a
tubular structure produced by the male
gametophyte of seed
plants when it germinates.
Pollen tube
elongation is an
integral stage in...
- the
spores of fungi, ferns, bacteria, and the
growth of the
pollen tube from the
pollen grain of a seed plant.
Germination is
usually the
growth of a...
- A
pollen count is a
measurement of the
number of
pollen grains in a
given volume of air.
Pollen counts, and
forecasts of
pollen conditions, are routinely...
-
Pollination is the
transfer of
pollen from an
anther of a
plant to the
stigma of a plant,
later enabling fertilisation and the
production of seeds. Pollinating...
- gametes. The male gametophytes,
which produce sperm, are
enclosed within pollen grains produced in the anthers. The
female gametophytes are
contained within...
- A
pollen core is a core
sample of a
medium containing a
stratigraphic sequence of
pollen.
Analysis of the type and
frequency of the
pollen in each layer...
- plants,
which produce pollen.
Female reproductive structures, such as
pistils in
flowering plants,
produce ovules and
receive pollen for fertilization. Mosses...
